Pure natural preservative for cosmetics

Abstract

The invention discloses a pure natural preservative for cosmetics. The pure natural preservative is prepared from the following components in parts by weight: 1-3 parts of lotus leaf, 3-5 parts of honeysuckle, 2-5 parts of folium ginkgo, 1-3 parts of dark plum and 1-5 parts of shaddock peel. A preparation method of the pure natural preservative comprises the following steps: (1) crushing the raw materials and mixing, adding water for decoction, filtering, and concentrating filtrate until the crude drug concentration is 1-1.3g / ml to obtain a concentrated solution; (2) adding ethyl alcohol into the concentrated solution until the ethyl alcohol concentration is 75-80 volume percent, standing for precipitation, and filtering out precipitate to obtain a clear solution; (3) decolorizing the clear solution with activated carbon, filtering and drying to obtain the pure natural preservative. The preservative is prepared by combining pure natural plant extracts, has a good antibacterial effect, is safe and non-toxic to human health, and has the advantages of anti-oxidation, skin whitening, anti-inflammation and the like.

Description

technical field

[0001] The invention belongs to the technical field of cosmetic additives, in particular to a pure natural antiseptic used in cosmetics. Background technique

[0002] Some ingredients in cosmetics, such as organic components such as lipids, hydrocarbons, and water-soluble polymers, can not only provide rich carbon sources, nitrogen sources, and other nutrients for microbial growth, but also provide chemical energy for microbial growth through oxidation. . Once it encounters the right environment, the microorganisms in the cosmetics will grow, multiply, and make it spoil. The deterioration of cosmetics caused by microorganisms is mainly manifested in the decomposition of the matrix of cosmetics, causing turbidity, precipitation and color changes in the product. The acidic products generated by its metabolism change the pH of the product, and the generated gas causes foaming and swelling, affecting the appearance and smell of the product. , In addition, micro...

Examples

Embodiment 1

[0023] The preparation method of the pure natural preservative used in cosmetics: 1 kg of lotus leaf, 3 kg of honeysuckle, 2 kg of ginkgo biloba, 1 kg of black plum and 1 kg of grapefruit peel are crushed and mixed, and decocted for 3 times, and the amount of water added each time is the total weight of each raw material. 8 times, each decocting time is 1h, the decoction liquid is combined, filtered, and the filtrate is concentrated until the crude drug concentration is 1g / ml to obtain a concentrated solution;

[0024] 2) Add ethanol to the concentrated solution until the concentration of ethanol is 75v%, let it settle for 24 hours, filter out the precipitate, and obtain a clear solution;

[0025] 3) The clarified liquid is decolorized with activated carbon, the dosage ratio of activated carbon to clarified liquid is 0.3g / 100ml, the decolorized temperature is 35°C, the decolorized time is 20min, ultrafiltered, dried, and obtained.

Embodiment 2

[0027] The preparation method of the pure natural preservative used in cosmetics: 3kg of lotus leaf, 5kg of honeysuckle, 5kg of ginkgo biloba, 3kg of black plum and 5kg of pomelo peel are pulverized and mixed, and decocted for 3 times, and the amount of water added each time is the total weight of each raw material 10 times, decocting time is 3h each time, combine the decoction liquid, filter, and concentrate the filtrate until the crude drug concentration is 1.3g / ml to obtain the concentrate;

[0028] 2) Add ethanol to the concentrated solution until the concentration of ethanol is 80v%, let it settle for 48 hours, filter out the precipitate, and obtain a clear solution;

[0029] 3) The clarified liquid is decolorized with activated carbon, the dosage ratio of activated carbon to the clarified liquid is 0.6g / 100ml, the decolorized temperature is 45°C, the decolorized time is 40min, ultrafiltered, dried, and obtained.

Embodiment 3

[0031] The preparation method of the pure natural antiseptic used in cosmetics: 2kg of lotus leaf, 4kg of honeysuckle, 3kg of ginkgo leaf, 2.5kg of black plum, 3.5kg of grapefruit peel are pulverized and mixed, and decocted for 3 times, and the amount of water added each time is the total amount of each raw material. 9 times the weight, each decoction time is 2h, the decoction liquid is combined, filtered, and the filtrate is concentrated until the crude drug concentration is 1.15g / ml to obtain a concentrate;

[0032] 2) Add ethanol to the concentrated solution until the concentration of ethanol is 78v%, let it settle for 36 hours, filter off the precipitate, and obtain a clear solution;

[0033] 3) The clarified liquid is decolorized with activated carbon, the dosage ratio of activated carbon to the clarified liquid is 0.5g / 100ml, the decolorized temperature is 40°C, the decolorized time is 30min, ultrafiltered, dried, and obtained.

technical field

[0001] The invention belongs to the technical field of cosmetic additives, in particular to a pure natural antiseptic used in cosmetics. Background technique

[0002] Some ingredients in cosmetics, such as organic components such as lipids, hydrocarbons, and water-soluble polymers, can not only provide rich carbon sources, nitrogen sources, and other nutrients for microbial growth, but also provide chemical energy for microbial growth through oxidation. . Once it encounters the right environment, the microorganisms in the cosmetics will grow, multiply, and make it spoil. The deterioration of cosmetics caused by microorganisms is mainly manifested in the decomposition of the matrix of cosmetics, causing turbidity, precipitation and color changes in the product. The acidic products generated by its metabolism change the pH of the product, and the generated gas causes foaming and swelling, affecting the appearance and smell of the product. , In addition, micro...

Examples

Embodiment 1

[0023] The preparation method of the pure natural preservative used in cosmetics: 1 kg of lotus leaf, 3 kg of honeysuckle, 2 kg of ginkgo biloba, 1 kg of black plum and 1 kg of grapefruit peel are crushed and mixed, and decocted for 3 times, and the amount of water added each time is the total weight of each raw material. 8 times, each decocting time is 1h, the decoction liquid is combined, filtered, and the filtrate is concentrated until the crude drug concentration is 1g / ml to obtain a concentrated solution;

[0024] 2) Add ethanol to the concentrated solution until the concentration of ethanol is 75v%, let it settle for 24 hours, filter out the precipitate, and obtain a clear solution;

[0025] 3) The clarified liquid is decolorized with activated carbon, the dosage ratio of activated carbon to clarified liquid is 0.3g / 100ml, the decolorized temperature is 35°C, the decolorized time is 20min, ultrafiltered, dried, and obtained.

Embodiment 2

[0027] The preparation method of the pure natural preservative used in cosmetics: 3kg of lotus leaf, 5kg of honeysuckle, 5kg of ginkgo biloba, 3kg of black plum and 5kg of pomelo peel are pulverized and mixed, and decocted for 3 times, and the amount of water added each time is the total weight of each raw material 10 times, decocting time is 3h each time, combine the decoction liquid, filter, and concentrate the filtrate until the crude drug concentration is 1.3g / ml to obtain the concentrate;

[0028] 2) Add ethanol to the concentrated solution until the concentration of ethanol is 80v%, let it settle for 48 hours, filter out the precipitate, and obtain a clear solution;

[0029] 3) The clarified liquid is decolorized with activated carbon, the dosage ratio of activated carbon to the clarified liquid is 0.6g / 100ml, the decolorized temperature is 45°C, the decolorized time is 40min, ultrafiltered, dried, and obtained.

Embodiment 3

[0031] The preparation method of the pure natural antiseptic used in cosmetics: 2kg of lotus leaf, 4kg of honeysuckle, 3kg of ginkgo leaf, 2.5kg of black plum, 3.5kg of grapefruit peel are pulverized and mixed, and decocted for 3 times, and the amount of water added each time is the total amount of each raw material. 9 times the weight, each decoction time is 2h, the decoction liquid is combined, filtered, and the filtrate is concentrated until the crude drug concentration is 1.15g / ml to obtain a concentrate;

[0032] 2) Add ethanol to the concentrated solution until the concentration of ethanol is 78v%, let it settle for 36 hours, filter off the precipitate, and obtain a clear solution;

[0033] 3) The clarified liquid is decolorized with activated carbon, the dosage ratio of activated carbon to the clarified liquid is 0.5g / 100ml, the decolorized temperature is 40°C, the decolorized time is 30min, ultrafiltered, dried, and obtained.

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