Composite plant extract with oil-control effect and preparation method thereof

Abstract

The present invention relates to the field of cosmetics technology, specifically disclosing a composite plant extract with oil-control efficacy and a preparation method thereof. The composite plant extract with oil-control efficacy is prepared by compounding rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle flower extract. The preparation method comprises adding the rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle flower extract into water, stirring and dissolving the extract to obtain a composite extract, then concentrating the composite extract by rotary evaporation to obtain an extract, and spray-drying the extract to obtain the composite plant extract with oil-control efficacy. The present invention has the advantage of lastingly improving oil-control efficacy.

Description

Technical Field

[0001] The present invention relates to the field of cosmetics, and in particular to a composite plant extract with oil-controlling effect and a preparation method thereof. Background Art

[0002] Excessive secretion of the human body's sebaceous glands will cause the skin surface to be covered with a noticeable layer of oil, which is usually called oily skin. Because the surface of oily skin is covered with thick oil, it will appear very greasy under light, seriously affecting its appearance. Therefore, people who love beauty often use various products with oil-control effects in the hope of inhibiting oil secretion and making the skin more beautiful.

[0003] Among existing oil-control products, plant extracts are one of the main raw materials. Compared with chemical ingredients, plant extracts are less irritating and safer, and have gradually become the mainstream of cosmetic raw materials. However, although existing products can achieve certain oil-control effects after adding plant extracts with oil-control effects, the oil-control effect is not good. Although it can delay oil secretion, the oil will still be gradually released over time. After a period of time, the skin will still be covered with oil, resulting in a short maintenance time of the oil-control effect, which is difficult to meet the needs of consumers. Therefore, there is still room for improvement. Summary of the Invention

[0004] In order to permanently improve the oil control effect, the present application provides a composite plant extract with oil control effect and a preparation method thereof.

[0005] In the first aspect, the present application provides a composite plant extract with oil-control effect, which adopts the following technical solution: a composite plant extract with oil-control effect, which is compounded by rosemary extract, North American witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract.

[0006] By adopting the above technical solution, by compounding rosemary extract, North American witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract, the composite plant extract has a strong oil-control effect and can inhibit oil secretion for a long time. After using products added with the composite plant extract, the skin can be kept non-greasy for a long time and the skin can be kept beautiful for a long time.

[0007] 5α-reductase is a membrane protease that relies on reduced coenzyme II (NADPH). It is a key androgen-metabolizing enzyme in the skin, irreversibly converting testosterone to dihydrotestosterone (DHT). DHT is the most active androgen and can induce excessive oil secretion from sebaceous glands. Reducing DHT levels by inhibiting 5α-reductase activity can effectively alleviate excessive oil secretion from sebaceous glands.

[0008] After the rosemary extract, North American witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle flower extract are compounded, they work synergistically with each other to achieve an excellent effect of inhibiting 5α-reductase, so that the resulting plant extract composition has a better oil-control effect and a more thorough oil-control effect, inhibiting oil secretion from the source, so that the sebaceous glands' oil secretion is well and lastingly suppressed, thereby allowing the skin to remain dry and non-greasy for a longer period of time.

[0009] Preferably, the mass ratio of the rosemary extract, witch hazel extract, kudzu root extract, tea seed extract and honeysuckle flower extract is 20-40:10-30:20-40:20-40:1-10.

[0010] By adopting the above technical scheme and specifically selecting the mass ratio range of rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract, the rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract can cooperate with each other better, have a better effect of inhibiting 5α-reductase, and achieve a better and longer-lasting oil control effect.

[0011] Preferably, the mass ratio of the rosemary extract, witch hazel extract, kudzu root extract, tea seed extract and honeysuckle flower extract is 25-35:15-25:25-35:25-35:3-7.

[0012] By adopting the above technical solution and specifically selecting the compounding ratio of rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle flower extract, the active ingredients in rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle flower extract work synergistically with each other to better enhance the effect of inhibiting 5α-reductase, thereby keeping the skin dry and non-greasy for a long time and better maintaining its beauty.

[0013] Preferably, the preparation method of the rosemary extract is as follows:

[0014] Step 1) adding rosemary to water, heating to 120-125° C. at 0.3-0.5 MPa, maintaining the temperature for 6-8 hours, cooling, releasing the pressure, filtering, and collecting the filtrate;

[0015] Step 2), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste;

[0016] Step 3), spraying the paste with powder and drying it to obtain rosemary extract.

[0017] By adopting the above technical solution and a special preparation method to prepare rosemary extract, the synergistic effect produced by compounding the active ingredients in the rosemary extract with the active ingredients of other extracts is better, the oil control effect is better improved, and the skin can be kept dry and non-greasy for a longer time.

[0018] Preferably, the preparation method of the Hamamelis virginiana extract is as follows:

[0019] Step 01) Add witch hazel to the smoothie, continue stirring at room temperature until the smoothie is completely melted, heat to 80-85°C, keep the temperature constant for 2-3 hours, cool, filter, and collect the filtrate;

[0020] Step 02), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste;

[0021] Step 03), the paste is powdered and dried to obtain the witch hazel extract.

[0022] By adopting the above technical solution and a special preparation method, the witch hazel extract is prepared, so that the witch hazel extract and other extracts produce better synergistic effects, the effect of inhibiting 5α-reductase is better, and the skin has a more lasting oil control effect.

[0023] Preferably, the preparation method of the Pueraria root extract is as follows:

[0024] Step 001) putting Pueraria root into a 40-60% ethanol solution, heating to 90-100° C., condensing and reflux, keeping the temperature constant for 4-6 hours, cooling, filtering, and collecting the filtrate;

[0025] Step 002), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste;

[0026] Step 003), the paste is powdered and dried to obtain the kudzu root extract.

[0027] By adopting the above technical solution and a special preparation method to prepare the kudzu root extract, the kudzu root extract and other extracts can be compounded to have a better effect, exert a better oil control effect, and keep the skin dry and non-greasy for a longer time.

[0028] Preferably, the preparation method of the tea seed extract is as follows:

[0029] Step 0001), putting tea seeds into a wall breaking machine, adding water, breaking the wall and grinding into tea seed slurry;

[0030] Step 0002), diluting the tea seed slurry with water, heating to 70-80°C, maintaining the temperature for 2-3 hours, cooling, filtering, and collecting the filtrate;

[0031] Step 0003), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste;

[0032] Step 0004), spraying the paste with powder and drying it to obtain tea seed extract.

[0033] By adopting the above technical solution and extracting tea seed extract through a special process, the oil-control effect of the composite extract is improved, the skin is kept dry for a longer period of time, and the skin is not easy to be greasy.

[0034] Preferably, the preparation method of the honeysuckle flower extract is as follows:

[0035] Step 00001) Put honeysuckle flowers into water, inoculate yeast, ferment at 36-38°C for 12-14 hours, heat to boiling, condense and reflux, keep boiling for 2-3 hours, cool, filter, and take the filtrate;

[0036] Step 00002), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste;

[0037] Step 00003), spraying the paste with powder and drying it to obtain the honeysuckle flower extract.

[0038] By adopting the above technical solution, the active ingredients in honeysuckle flowers can better cooperate with other active ingredients through fermentation, thereby better exerting the oil control effect and improving the effect of oily skin.

[0039] In a second aspect, the present application provides a method for preparing a composite plant extract having oil-controlling efficacy, using the following technical solution:

[0040] A method for preparing the above-mentioned composite plant extract with oil-control effect comprises adding rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract into water, stirring and dissolving them to obtain a composite extract, then concentrating the composite extract by rotary evaporation to obtain an extract, and spray-drying the extract to obtain the composite plant extract with oil-control effect.

[0041] By adopting the above technical solution, rosemary extract, North American witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract are dissolved and then dried, so that each extract can be fully and evenly dispersed in water. Especially during the concentration process, due to the increase in temperature, the active ingredients can better exert their synergistic effects, and the obtained composite plant extract has a better and more lasting oil control effect.

[0042] In summary, this application has the following beneficial effects:

[0043] 1. Since the present application is compounded with rosemary extract, witch hazel extract, kudzu root extract, tea seed extract and honeysuckle extract, the compound plant extract has a strong oil-control effect and can inhibit oil secretion for a long time. After using products added with compound plant extracts, the skin can be kept non-greasy for a long time and the skin can be kept beautiful for a long time.

[0044] 2. In this application, it is preferred to specifically select the mass ratio range of rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract so that the rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract cooperate with each other better, have a better effect of inhibiting 5α-reductase, and achieve a better and more lasting oil control effect.

[0045] 3. The method of the present application dissolves rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract and then dries them, so that each extract can be fully and evenly dispersed in water. Especially during the concentration process, due to the increase in temperature, the active ingredients can better exert their synergistic effects, and the obtained composite plant extract has a better and more lasting oil-control effect. DETAILED DESCRIPTION

[0046] The present application is further described in detail below with reference to the embodiments.

[0047] Example 1

[0048] A compound plant extract with oil-control effect, made from rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract.

[0049] Wherein, the rosemary extract is homemade, and the preparation method of the rosemary extract is as follows:

[0050] Step 1) Weigh 10 kg of freshly picked rosemary and put it into 50 kg of water. In a closed container, inject nitrogen until the pressure in the container is 0.3 MPa, heat the liquid in the container to 120° C., keep the temperature constant for 6 hours, cool to room temperature, release the pressure, filter through a 200-mesh filter cloth, and take the filtrate.

[0051] Step 2) The filtrate is concentrated by rotary evaporation to a paste, with a rotary evaporation pressure of 0.5 MPa and a rotary evaporation temperature of 60° C. to obtain a paste.

[0052] Step 3) The paste is spray-dried in a powder drying machine to obtain the rosemary extract.

[0053] The North American witch hazel extract is homemade, and the preparation method of the North American witch hazel extract is as follows:

[0054] Step 01) Weigh 10 kg of freshly picked North American witch hazel and put it into a smoothie made by crushing 40 kg of ice cubes. Stir continuously at room temperature at a speed of 60 r / min until the smoothie is completely melted. Then heat it to a liquid temperature of 80°C, keep the temperature constant for 2 hours, cool it to room temperature, filter it through a 200-mesh filter cloth, and take the filtrate.

[0055] Step 02), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0056] Step 03), the paste is spray-dried in a powder drying machine to obtain the witch hazel extract.

[0057] The kudzu root extract is homemade, and the preparation method of the kudzu root extract is as follows:

[0058] Step 001), weigh 10kg of sun-cured Pueraria root and put it into 50kg of 40% ethanol solution, heat to 90°C, condense and reflux, rotate at 30r / min, stir continuously, keep constant temperature for 4h, cool to room temperature, filter with 200 mesh filter cloth, and take the filtrate.

[0059] Step 002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0060] Step 003), the paste is spray-dried by a powder drying machine to obtain the kudzu root extract.

[0061] Among them, the tea seed extract is homemade, and the preparation method of the tea seed extract is as follows:

[0062] Step 0001), weigh 10kg of sun-dried tea seeds and put them into a wall-breaking machine, add 10kg of water, and grind them into tea seed slurry through the wall-breaking machine.

[0063] Step 0002), dilute the tea seed slurry with 40 kg of water, heat to 70° C., rotate at 60 r / min, stir continuously, keep constant temperature for 2 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0064] Step 0003), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0065] Step 0004), the paste is spray-dried by a powder drying machine to obtain tea seed extract.

[0066] The honeysuckle flower extract is homemade, and the preparation method of the honeysuckle flower extract is as follows:

[0067] Step 00001), weigh 10 kg of freshly picked honeysuckle flowers and put them into 60 kg of water, inoculate 6 g of yeast, keep a constant temperature of 36 ° C, ferment for 12 hours, then heat to boiling, condense and reflux, rotate at 60 r / min, continue stirring, keep boiling for 2 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0068] Step 00002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0069] Step 00003), the paste is spray-dried in a powder spray dryer to obtain the honeysuckle flower extract.

[0070] Yeast was purchased from Guangzhou Weiyuan Biotechnology Co., Ltd., brewer's yeast, with a specification of 20 billion / g.

[0071] The preparation method of the compound plant extract with oil-control effect is as follows:

[0072] Weigh 20g of rosemary extract, 10g of North American witch hazel extract, 20g of kudzu root extract, 20g of tea seed extract, and 1g of honeysuckle extract and put them into 500g of water at a speed of 120r / min and stir for 10min to dissolve to obtain a composite extract. Then, the composite extract is concentrated by rotary evaporation to an extract at a rotary evaporation pressure of 0.5MPa and a rotary evaporation temperature of 60°C. The extract is then spray-dried in a powder spray dryer to obtain a composite plant extract with oil-control effect.

[0073] Example 2

[0074] A compound plant extract with oil-control effect, made from rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract.

[0075] Wherein, the rosemary extract is homemade, and the preparation method of the rosemary extract is as follows:

[0076] Step 1) Weigh 10 kg of freshly picked rosemary and put it into 50 kg of water. In a closed container, inject nitrogen until the pressure in the container is 0.3 MPa, heat the liquid in the container to 120° C., keep the temperature constant for 6 hours, cool to room temperature, release the pressure, filter through a 200-mesh filter cloth, and take the filtrate.

[0077] Step 2), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0078] Step 3) The paste is spray-dried in a powder drying machine to obtain the rosemary extract.

[0079] The North American witch hazel extract is homemade, and the preparation method of the North American witch hazel extract is as follows:

[0080] Step 01) Weigh 10 kg of freshly picked North American witch hazel and put it into a smoothie made by crushing 40 kg of ice cubes. Stir continuously at room temperature at a speed of 60 r / min until the smoothie is completely melted. Then heat it to a liquid temperature of 80°C, keep the temperature constant for 2 hours, cool it to room temperature, filter it through a 200-mesh filter cloth, and take the filtrate.

[0081] Step 02), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0082] Step 03), the paste is spray-dried in a powder drying machine to obtain the witch hazel extract.

[0083] The kudzu root extract is homemade, and the preparation method of the kudzu root extract is as follows:

[0084] Step 001) Weigh 10 kg of sun-cured kudzu root and put it into 50 kg of 40% ethanol solution, heat to 90 ° C, condense and reflux at a speed of 30 r / min, stir continuously, keep constant temperature for 4 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0085] Step 002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0086] Step 003), the paste is spray-dried by a powder drying machine to obtain the kudzu root extract.

[0087] Among them, the tea seed extract is homemade, and the preparation method of the tea seed extract is as follows:

[0088] Step 0001), weigh 10kg of sun-dried tea seeds and put them into a wall-breaking machine, add 10kg of water, and grind them into tea seed slurry through the wall-breaking machine.

[0089] Step 0002), dilute the tea seed slurry with 40 kg of water, heat to 70° C., rotate at 60 r / min, stir continuously, keep constant temperature for 2 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0090] Step 0003), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0091] Step 0004), the paste is spray-dried by a powder drying machine to obtain tea seed extract.

[0092] The honeysuckle flower extract is homemade, and the preparation method of the honeysuckle flower extract is as follows:

[0093] Step 00001), weigh 10 kg of freshly picked honeysuckle flowers and put them into 60 kg of water, inoculate 6 g of yeast, keep a constant temperature of 36 ° C, ferment for 12 hours, then heat to boiling, condense and reflux, rotate at 60 r / min, continue stirring, keep boiling for 2 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0094] Step 00002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0095] Step 00003), the paste is spray-dried in a powder spray dryer to obtain the honeysuckle flower extract.

[0096] Yeast was purchased from Guangzhou Weiyuan Biotechnology Co., Ltd., brewer's yeast, with a specification of 20 billion / g.

[0097] The preparation method of the compound plant extract with oil-control effect is as follows:

[0098] Weigh 25g of rosemary extract, 15g of North American witch hazel extract, 25g of kudzu root extract, 25g of tea seed extract, and 5g of honeysuckle extract and put them into 500g of water at a speed of 120r / min and stir for 10min to dissolve to obtain a composite extract. Then, the composite extract is concentrated by rotary evaporation to an extract at a rotary evaporation pressure of 0.5MPa and a rotary evaporation temperature of 60°C. The extract is then spray-dried in a powder spray dryer to obtain a composite plant extract with oil-control effect.

[0099] Example 3

[0100] A compound plant extract with oil-control effect, made from rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract.

[0101] Wherein, the rosemary extract is homemade, and the preparation method of the rosemary extract is as follows:

[0102] Step 1) Weigh 10 kg of freshly picked rosemary and put it into 50 kg of water. In a closed container, inject nitrogen until the pressure in the container is 0.4 MPa, heat the liquid in the container to 122° C., keep the temperature constant for 7 hours, cool to room temperature, release the pressure, filter through a 200-mesh filter cloth, and take the filtrate.

[0103] Step 2), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0104] Step 3) The paste is spray-dried in a powder drying machine to obtain the rosemary extract.

[0105] The North American witch hazel extract is homemade, and the preparation method of the North American witch hazel extract is as follows:

[0106] Step 01) Weigh 10 kg of freshly picked North American witch hazel and put it into a smoothie made by crushing 40 kg of ice cubes. Stir continuously at room temperature at a speed of 60 r / min until the smoothie is completely melted. Then heat it to a liquid temperature of 82°C, keep the temperature constant for 2.5 hours, cool it to room temperature, filter it through a 200-mesh filter cloth, and take the filtrate.

[0107] Step 02), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0108] Step 03), the paste is spray-dried in a powder drying machine to obtain the witch hazel extract.

[0109] The kudzu root extract is homemade, and the preparation method of the kudzu root extract is as follows:

[0110] Step 001) Weigh 10 kg of sun-cured kudzu root and put it into 50 kg of 50% ethanol solution, heat it to 95 ° C, condense and reflux at a speed of 30 r / min, stir continuously, keep the temperature constant for 5 hours, cool to room temperature, filter with a 200 mesh filter cloth, and take the filtrate.

[0111] Step 002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0112] Step 003), the paste is spray-dried by a powder drying machine to obtain the kudzu root extract.

[0113] Among them, the tea seed extract is homemade, and the preparation method of the tea seed extract is as follows:

[0114] Step 0001), weigh 10kg of sun-dried tea seeds and put them into a wall-breaking machine, add 10kg of water, and grind them into tea seed slurry through the wall-breaking machine.

[0115] Step 0002), dilute the tea seed slurry with 40 kg of water, heat to 75 ° C, rotate at 60 r / min, continue stirring, keep constant temperature for 2.5 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0116] Step 0003), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0117] Step 0004), the paste is spray-dried by a powder drying machine to obtain tea seed extract.

[0118] The honeysuckle flower extract is homemade, and the preparation method of the honeysuckle flower extract is as follows:

[0119] Step 00001), weigh 10 kg of freshly picked honeysuckle flowers and put them into 60 kg of water, inoculate 6 g of yeast, keep the temperature at 37 ° C, ferment for 134 hours, then heat to boiling, condense and reflux, rotate at 60 r / min, stir continuously, keep boiling for 2.5 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0120] Step 00002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0121] Step 00003), the paste is spray-dried in a powder spray dryer to obtain the honeysuckle flower extract.

[0122] Yeast was purchased from Guangzhou Weiyuan Biotechnology Co., Ltd., brewer's yeast, with a specification of 20 billion / g.

[0123] The preparation method of the compound plant extract with oil-control effect is as follows:

[0124] Weigh 30g of rosemary extract, 20g of North American witch hazel extract, 30g of kudzu root extract, 30g of tea seed extract, and 5g of honeysuckle extract and put them into 500g of water at a speed of 120r / min and stir for 10min to dissolve to obtain a composite extract. Then, the composite extract is concentrated by rotary evaporation to an extract at a rotary evaporation pressure of 0.5MPa and a rotary evaporation temperature of 60°C. The extract is then spray-dried in a powder spray dryer to obtain a composite plant extract with oil-control effect.

[0125] Example 4

[0126] A compound plant extract with oil-control effect, made from rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract.

[0127] Wherein, the rosemary extract is homemade, and the preparation method of the rosemary extract is as follows:

[0128] Step 1) Weigh 10 kg of freshly picked rosemary and put it into 50 kg of water. In a closed container, inject nitrogen until the pressure in the container is 0.5 MPa, heat the liquid in the container to 125° C., keep the temperature constant for 8 hours, cool to room temperature, release the pressure, filter through a 200-mesh filter cloth, and take the filtrate.

[0129] Step 2) The filtrate is concentrated by rotary evaporation to a paste, with a rotary evaporation pressure of 0.5 MPa and a rotary evaporation temperature of 60° C. to obtain a paste.

[0130] Step 3) The paste is spray-dried in a powder drying machine to obtain the rosemary extract.

[0131] The North American witch hazel extract is homemade, and the preparation method of the North American witch hazel extract is as follows:

[0132] Step 01) Weigh 10 kg of freshly picked North American witch hazel and put it into a smoothie made by crushing 40 kg of ice cubes. Stir continuously at room temperature at a speed of 60 r / min until the smoothie is completely melted. Then heat it to a liquid temperature of 85°C, keep the temperature constant for 3 hours, cool it to room temperature, filter it through a 200-mesh filter cloth, and take the filtrate.

[0133] Step 02), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0134] Step 03), the paste is spray-dried in a powder drying machine to obtain the witch hazel extract.

[0135] The kudzu root extract is homemade, and the preparation method of the kudzu root extract is as follows:

[0136] Step 001) Weigh 10 kg of sun-cured kudzu root and put it into 50 kg of 60% ethanol solution, heat to 100 ° C, condense and reflux at a speed of 30 r / min, stir continuously, keep constant temperature for 6 hours, cool to room temperature, filter with 200 mesh filter cloth, and take the filtrate.

[0137] Step 002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0138] Step 003), the paste is spray-dried by a powder drying machine to obtain the kudzu root extract.

[0139] Among them, the tea seed extract is homemade, and the preparation method of the tea seed extract is as follows:

[0140] Step 0001), weigh 10kg of sun-dried tea seeds and put them into a wall-breaking machine, add 10kg of water, and grind them into tea seed slurry through the wall-breaking machine.

[0141] Step 0002), dilute the tea seed slurry with 40 kg of water, heat to 80° C., rotate at 60 r / min, stir continuously, keep constant temperature for 3 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0142] Step 0003), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0143] Step 0004), the paste is spray-dried by a powder drying machine to obtain tea seed extract.

[0144] The honeysuckle flower extract is homemade, and the preparation method of the honeysuckle flower extract is as follows:

[0145] Step 00001), weigh 10 kg of freshly picked honeysuckle flowers and put them into 60 kg of water, inoculate 6 g of yeast, keep a constant temperature of 38 ° C, ferment for 14 hours, then heat to boiling, condense and reflux, rotate at 60 r / min, continue stirring, keep boiling for 3 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0146] Step 00002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0147] Step 00003), the paste is spray-dried in a powder spray dryer to obtain the honeysuckle flower extract.

[0148] Yeast was purchased from Guangzhou Weiyuan Biotechnology Co., Ltd., brewer's yeast, with a specification of 20 billion / g.

[0149] The preparation method of the compound plant extract with oil-control effect is as follows:

[0150] Weigh 35g of rosemary extract, 25g of North American witch hazel extract, 35g of kudzu root extract, 35g of tea seed extract, and 7g of honeysuckle extract and put them into 500g of water at a speed of 120r / min and stir for 10min to dissolve to obtain a composite extract. Then, the composite extract is concentrated by rotary evaporation to an extract at a rotary evaporation pressure of 0.5MPa and a rotary evaporation temperature of 60°C. The extract is then spray-dried in a powder spray dryer to obtain a composite plant extract with oil-control effect.

[0151] Example 5

[0152] A compound plant extract with oil-control effect, made from rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract.

[0153] Wherein, the rosemary extract is homemade, and the preparation method of the rosemary extract is as follows:

[0154] Step 1) Weigh 10 kg of freshly picked rosemary and put it into 50 kg of water. In a closed container, inject nitrogen until the pressure in the container is 0.5 MPa, heat the liquid in the container to 125° C., keep the temperature constant for 8 hours, cool to room temperature, release the pressure, filter through a 200-mesh filter cloth, and take the filtrate.

[0155] Step 2), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0156] Step 3) The paste is spray-dried in a powder drying machine to obtain the rosemary extract.

[0157] The North American witch hazel extract is homemade, and the preparation method of the North American witch hazel extract is as follows:

[0158] Step 01) Weigh 10 kg of freshly picked North American witch hazel and put it into a smoothie made by crushing 40 kg of ice cubes. Stir continuously at room temperature at a speed of 60 r / min until the smoothie is completely melted. Then heat it to a liquid temperature of 85°C, keep the temperature constant for 3 hours, cool it to room temperature, filter it through a 200-mesh filter cloth, and take the filtrate.

[0159] Step 02), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0160] Step 03), the paste is spray-dried in a powder drying machine to obtain the witch hazel extract.

[0161] The kudzu root extract is homemade, and the preparation method of the kudzu root extract is as follows:

[0162] Step 001) Weigh 10 kg of sun-cured kudzu root and put it into 50 kg of 60% ethanol solution, heat to 100 ° C, condense and reflux at a speed of 30 r / min, stir continuously, keep constant temperature for 6 hours, cool to room temperature, filter with 200 mesh filter cloth, and take the filtrate.

[0163] Step 002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0164] Step 003), the paste is spray-dried by a powder drying machine to obtain the kudzu root extract.

[0165] Among them, the tea seed extract is homemade, and the preparation method of the tea seed extract is as follows:

[0166] Step 0001), weigh 10kg of sun-dried tea seeds and put them into a wall-breaking machine, add 10kg of water, and grind them into tea seed slurry through the wall-breaking machine.

[0167] Step 0002), dilute the tea seed slurry with 40 kg of water, heat to 80° C., rotate at 60 r / min, stir continuously, keep constant temperature for 3 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0168] Step 0003), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0169] Step 0004), the paste is spray-dried by a powder drying machine to obtain tea seed extract.

[0170] The honeysuckle flower extract is homemade, and the preparation method of the honeysuckle flower extract is as follows:

[0171] Step 00001), weigh 10 kg of freshly picked honeysuckle flowers and put them into 60 kg of water, inoculate 6 g of yeast, keep a constant temperature of 38 ° C, ferment for 14 hours, then heat to boiling, condense and reflux, rotate at 60 r / min, continue stirring, keep boiling for 3 hours, cool to room temperature, filter through 200 mesh filter cloth, and take the filtrate.

[0172] Step 00002), the filtrate is concentrated by rotary evaporation to a paste, the rotary evaporation pressure is 0.5 MPa, and the rotary evaporation temperature is 60° C. to obtain a paste.

[0173] Step 00003), the paste is spray-dried in a powder spray dryer to obtain the honeysuckle flower extract.

[0174] Yeast was purchased from Guangzhou Weiyuan Biotechnology Co., Ltd., brewer's yeast, with a specification of 20 billion / g.

[0175] The preparation method of the compound plant extract with oil-control effect is as follows:

[0176] Weigh 40g of rosemary extract, 30g of North American witch hazel extract, 40g of kudzu root extract, 40g of tea seed extract, and 10g of honeysuckle extract and put them into 500g of water at a speed of 120r / min and stir for 10 minutes to dissolve to obtain a composite extract. Then, the composite extract is concentrated by rotary evaporation to an extract at a rotary evaporation pressure of 0.5MPa and a rotary evaporation temperature of 60°C. The extract is then spray-dried in a powder spray dryer to obtain a composite plant extract with oil-control effect.

[0177] Comparative Example 1

[0178] A composite plant extract with oil-control efficacy, which differs from Example 3 only in that:

[0179] Replace rosemary extract with an equal amount of arborvitae leaf extract.

[0180] The Thuja orientalis leaf extract is homemade. The preparation method of Thuja orientalis leaf extract is different from that of rosemary extract in the following ways:

[0181] In step 1), an equal amount of freshly picked arborvitae leaves is used to replace the freshly picked rosemary.

[0182] Comparative Example 2

[0183] A composite plant extract with oil-control efficacy, which differs from Example 3 only in that:

[0184] Replace witch hazel extract with an equal amount of calendula extract.

[0185] Calendula extract is homemade. The preparation method of calendula extract is different from that of witch hazel extract in the following ways:

[0186] In step 1), an equal amount of freshly picked marigolds is used to replace the freshly picked witch hazel.

[0187] Comparative Example 3

[0188] A composite plant extract with oil-control efficacy, which differs from Example 3 only in that:

[0189] Anemarrhena asphodeloides extract was used to replace Pueraria root extract in equal amounts.

[0190] Anemarrhena extract is homemade. The preparation method of Anemarrhena extract is different from that of Pueraria root extract in the following ways:

[0191] In step 1), an equal amount of sun-dried Rhizoma Anemarrhenae is used to replace the sun-dried Radix Puerariae.

[0192] Comparative Example 4

[0193] A composite plant extract with oil-control efficacy, which differs from Example 3 only in that:

[0194] Replace tea seed extract with an equal amount of pumpkin seed extract.

[0195] Pumpkin seed extract is homemade. The preparation method of pumpkin seed extract is different from that of tea seed extract in the following ways:

[0196] In step 1), an equal amount of sun-dried pumpkin seeds is used to replace the sun-dried tea seeds.

[0197] Comparative Example 5

[0198] A composite plant extract with oil-control efficacy, which differs from Example 3 only in that:

[0199] Replace the honeysuckle flower extract with an equal amount of water lily extract.

[0200] Water lily extract is homemade. The preparation method of water lily extract is different from that of honeysuckle extract in the following ways:

[0201] In step 1), an equal amount of freshly picked water lilies is used to replace the freshly picked honeysuckle flowers.

[0202] Comparative Example 6

[0203] A composite plant extract with oil-control efficacy, which differs from Example 3 only in that:

[0204] The rosemary extract was replaced with an equal amount of the Platycladus orientalis leaf extract in Comparative Example 1.

[0205] An equal amount of the Calendula officinalis extract of Comparative Example 2 was used to replace the Hamamelis virginiana extract.

[0206] An equal amount of the Anemarrhena Rhizoma extract in Comparative Example 3 was used to replace the Pueraria lobata extract.

[0207] The pumpkin seed extract of Comparative Example 4 was used to replace the tea seed extract in an equal amount.

[0208] The water lily extract of Comparative Example 5 was used to replace the honeysuckle extract in an equal amount.

[0209] Comparative Example 7

[0210] A composite plant extract with oil-control efficacy, which differs from Example 3 only in that:

[0211] The preparation method of rosemary extract is as follows:

[0212] S1. Weigh 10 kg of freshly picked rosemary and add it to 50 kg of water. Heat to boiling, reflux under condensation, and maintain constant temperature for 7 hours. Cool to room temperature, filter through a 200-mesh filter cloth, and collect the filtrate.

[0213] S2. The filtrate was concentrated by rotary evaporation to a paste at a rotary evaporation pressure of 0.5 MPa and a rotary evaporation temperature of 60°C to obtain a paste.

[0214] S3. The paste is spray-dried in a powder drying machine to obtain rosemary extract.

[0215] The preparation method of witch hazel extract is as follows:

[0216] Weigh 10 kg of freshly picked witch hazel into 50 kg of water. Heat to boiling, reflux under condensation, and maintain constant temperature for 7 hours. Cool to room temperature, filter through a 200-mesh filter cloth, and collect the filtrate.

[0217] S2. The filtrate was concentrated by rotary evaporation to a paste at a rotary evaporation pressure of 0.5 MPa and a rotary evaporation temperature of 60°C to obtain a paste.

[0218] S3. The paste is spray-dried in a powder drying machine to obtain witch hazel extract.

[0219] The preparation method of Pueraria root extract is as follows:

[0220] S1. Weigh 10 kg of sun-cured kudzu root and add it to 50 kg of water. Heat to boiling, reflux under condensation, and maintain constant temperature for 7 hours. Cool to room temperature, filter through a 200-mesh filter cloth, and collect the filtrate.

[0221] S2. The filtrate was concentrated by rotary evaporation to a paste at a rotary evaporation pressure of 0.5 MPa and a rotary evaporation temperature of 60°C to obtain a paste.

[0222] S3. The paste is spray-dried in a powder drying machine to obtain a kudzu root extract.

[0223] The preparation method of tea seed extract is as follows:

[0224] S1. Weigh 10 kg of sun-cured tea seeds and place them in 50 kg of water. Heat to boiling, reflux under condensation, and maintain constant temperature for 7 hours. Cool to room temperature, filter through a 200-mesh filter cloth, and collect the filtrate.

[0225] S2. The filtrate was concentrated by rotary evaporation to a paste at a rotary evaporation pressure of 0.5 MPa and a rotary evaporation temperature of 60°C to obtain a paste.

[0226] S3. The paste is spray-dried in a powder drying machine to obtain a tea seed extract.

[0227] The preparation method of honeysuckle flower extract is as follows:

[0228] S1. Weigh 10 kg of freshly picked honeysuckle flowers and place them in 50 kg of water. Heat to boiling, reflux under condensation, and maintain constant temperature for 7 hours. Cool to room temperature and filter through a 200-mesh filter cloth to collect the filtrate.

[0229] S2. The filtrate was concentrated by rotary evaporation to a paste at a rotary evaporation pressure of 0.5 MPa and a rotary evaporation temperature of 60°C to obtain a paste.

[0230] S3. The paste is spray-dried in a powder drying machine to obtain the honeysuckle flower extract.

[0231] Experiment 1

[0232] The composite plant extracts of each embodiment and comparative example were diluted with deionized water to a 1% concentration of the test sample. Several volunteers with oily skin were recruited in groups of ten. Each group used a facial cleanser without oil-control function to cleanse the face. Then, 2 ml of the test sample was evenly applied to the face. After massaging the face for 1 minute, the facial skin oil content was tested as the initial oil content. The facial skin oil content was then tested again after 6 hours, 12 hours, and 24 hours.

[0233] The multifunctional skin tester MPA580 and the probe SM815 were used to test the oil content of facial skin.

[0234] The probe contains matte tape, which becomes translucent after absorbing grease. The more grease there is, the greater the transparency. The amount of light transmitted through the probe reflects the grease content, in μg / cm 2 .

[0235] The specific test data of Experiment 1 are shown in Table 1.

[0236] Table 1

[0237]

[0238] According to the data comparison in Table 1, when rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract are compounded in a specific proportion, the prepared composite plant extract has a longer-lasting oil-control effect. When other plant extracts with oil-control effects are used to replace any one of rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract, the duration of the oil-control effect is significantly reduced. It can be seen that when rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract are compounded, the effect of inhibiting 5α-reductase is better, and oil secretion can be continuously inhibited, making the oil-control effect more lasting.

[0239] When rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle extract are all extracted using a specific extraction method, the long-lasting oil control effect is better. Compared with the compounding of extracts made by ordinary extraction methods, it has a better effect of inhibiting 5α-reductase and can better and longer maintain the beauty of the skin.

[0240] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A composite plant extract with oil-control efficacy, characterized in that: Made from rosemary extract, witch hazel extract, kudzu root extract, tea seed extract, and honeysuckle flower extract; The mass ratio of the rosemary extract, the witch hazel extract, the kudzu root extract, the tea seed extract and the honeysuckle flower extract is 20-40:10-30:20-40:20-40:1-10.

2. The composite plant extract with oil-control efficacy according to claim 1, characterized in that: The mass ratio of the rosemary extract, the witch hazel extract, the kudzu root extract, the tea seed extract and the honeysuckle flower extract is 25-35:15-25:25-35:25-35:3-7.

3. The composite plant extract with oil-control efficacy according to claim 1 or 2, characterized in that: The preparation method of the rosemary extract is as follows: Step 1) Put rosemary into water, heat to 120-125°C at 0.3-0.5 MPa, keep constant temperature for 6-8 hours, cool, release pressure, filter, and collect filtrate; Step 2), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste; Step 3), the paste is powdered and dried to obtain rosemary extract.

4. The composite plant extract with oil-control efficacy according to claim 3, characterized in that: The preparation method of the witch hazel extract is as follows: Step 01) Add witch hazel to the smoothie and continue stirring at room temperature until the smoothie is completely melted. Heat to 80-85°C and keep the temperature constant for 2-3 hours. Cool, filter, and collect the filtrate. Step 02), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste; Step 03), the paste is powdered and dried to obtain the witch hazel extract.

5. The composite plant extract with oil-control efficacy according to claim 4, characterized in that: The preparation method of the Pueraria root extract is as follows: Step 001), putting Pueraria root into 40-60% ethanol solution, heating to 90-100°C, condensing and reflux, keeping constant temperature for 4-6 hours, cooling, filtering, and collecting filtrate; Step 002), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste; Step 003), the paste is powdered and dried to obtain the kudzu root extract.

6. The composite plant extract with oil-control efficacy according to claim 5, characterized in that: The preparation method of the tea seed extract is as follows: Step 0001), put the tea seeds into a wall breaking machine, add water, break the wall and grind into tea seed slurry; Step 0002), dilute the tea seed slurry with water, heat to 70-80°C, keep constant temperature for 2-3 hours, cool, filter, and collect the filtrate; Step 0003), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste; Step 0004), the paste is powdered and dried to obtain tea seed extract.

7. The composite plant extract with oil-control efficacy according to claim 6, characterized in that: The preparation method of the honeysuckle flower extract is as follows: Step 00001), put honeysuckle flowers into water, inoculate yeast, ferment at 36-38°C for 12-14 hours, heat to boiling, condense and reflux, keep boiling for 2-3 hours, cool, filter, and take the filtrate; Step 00002), the filtrate is concentrated by rotary evaporation to a paste to obtain a paste; Step 00003), the paste is powdered and dried to obtain the honeysuckle flower extract.

8. A method for preparing the composite plant extract with oil-control efficacy according to any one of claims 1 to 7, characterized in that: Rosemary extract, witch hazel extract, kudzu root extract, tea seed extract and honeysuckle extract are put into water and stirred to dissolve to obtain a composite extract. The composite extract is then concentrated by rotary evaporation to obtain an extract, and the extract is spray-dried to obtain a composite plant extract with oil-control effect.

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