Composite fiveleaf gynostemma herb food and making method thereof

Abstract

The invention relates to the technical field of health-care products, in particular to a composite fiveleaf gynostemma herb food and a making method thereof. The fiveleaf gynostemma herb jam is prepared from the following components in parts by mass: 20 to 30 parts of fiveleaf gynostemma herb concentrated juice, 5 to 8 parts of oligosaccharide, 3 to 6 parts of red dates, 0.8 to 2.2 parts of honey, 1.5 to 2.8 parts of bitter gourd, 0.8 to 1.2 parts of vegetable oil, 5 to 12 parts of fiveleaf gynostemma herb micro powder, 3 to 6 parts of lotus seedpod, 1.2 to 3 parts of milk, 0.3 to 0.8 part of cane sugar, 1.2 to 1.6 parts of jam, 0.25 to 0.62 part of citrus fiber, 0.42 to 0.58 part of hydroxypropyl starch, 2.6 to 3.6 parts of fructus lycii, 1.2 to 2.2 parts of cortex phellodendri chinensis, 0.3 to 0.9 part of storax oil, 0.4 to 0.6 part of radix paeoniae alba and 1.1 to 1.9 parts of semen cassiae torae. According to the fiveleaf gynostemma herb food, the essence of a traditional fiveleaf gynostemma herb food is reserved, the taste and nutrition are doubly upgraded, the roughness and bitterness of the traditional fiveleaf gynostemma herb food are abandoned, meanwhile, active ingredients and trace elements in the fiveleaf gynostemma herb are reserved to the maximum extent through extraction and concentration technologies in the preparation process, and the eating experience is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of health care products, in particular to a composite gynostemma pentaphyllum food and a preparation method thereof. Background Art

[0002] With the continuous improvement of people's material living standards, the concept of healthy eating has been deeply rooted in the hearts of the public. Gynostemma pentaphyllum, a natural ingredient that has been regarded as the guardian of the liver since ancient times, has won wide attention and love with its unique charm. Gynostemma pentaphyllum has been praised by traditional Chinese medicine as a top-grade product for replenishing qi and yin, clearing the lungs and resolving phlegm, and nourishing the heart and calming the mind since ancient times due to its cold nature and sweet and slightly bitter taste. In modern times, with the advancement of science and technology, the pharmacological value of Gynostemma pentaphyllum has been studied and explored more deeply. It can not only effectively lower blood sugar and blood lipids, and regulate blood pressure, but has also been proven to have significant anti-cancer, anti-aging and immunity-enhancing effects, becoming an ideal choice for modern people pursuing a healthy life.

[0003] However, although the value of Gynostemma pentaphyllum is highly recognized, some Gynostemma pentaphyllum compound foods on the market are still insufficient in taste and nutrition retention. Due to improper handling during the processing of some products, the unique flavor and nutritional content of Gynostemma pentaphyllum are greatly reduced, which not only affects consumers' eating experience, but also weakens its original health effects, thereby adversely affecting the market reputation of the product. Therefore, how to retain the original flavor and nutrition of Gynostemma pentaphyllum while improving its taste and eating experience has become an important issue that needs to be urgently addressed in the current Gynostemma pentaphyllum food research and development field. Summary of the invention

[0004] The object of the present invention is to provide a composite gynostemma food and a preparation method thereof, wherein the composite gynostemma food has both good taste and high nutritional value.

[0005] To achieve the above object, the present invention provides the following technical scheme: a composite gynostemma food, wherein the components and their weight proportions are: 20-30 parts of gynostemma concentrated juice mixed with Pingli tetraploid gynostemma and diploid gynostemma in a ratio of 1:1, 5-8 parts of oligosaccharides, 3-6 parts of hot red dates, 0.8-2.2 parts of neutral honey, 1.5-2.8 parts of cool false bitter melon, 0.8-1.2 parts of vegetable oil, 3:7 mixed with Pingli tetraploid gynostemma and diploid gynostemma, 1:1 mixed with Pingli tetraplo ... 5-12 parts of micropowder, 3-6 parts of neutral lotus seeds, 1.2-3 parts of neutral milk, 0.3-0.8 parts of sucrose, 1.2-1.6 parts of jam, 0.25-0.62 parts of warm citrus fiber, 0.42-0.58 parts of hydroxypropyl starch, 2.6-3.6 parts of hot wolfberry, 1.2-2.2 parts of cool phellodendron, 0.3-0.9 parts of storax oil, 0.4-0.6 parts of cool wood peony root and 1.1-1.9 parts of cool cassia seed.

[0006] Preferably, the vegetable oil is any one of corn oil, linseed oil or perilla oil, the jam is any one of fruit jam or low-sugar jam, and the oligosaccharide is any one of maltooligosaccharide, isomaltooligosaccharide, fructose oligosaccharide, sucrose oligosaccharide, milk oligosaccharide, chitin oligosaccharide, soybean oligosaccharide or galactose oligosaccharide.

[0007] A method for preparing a composite gynostemma pentaphyllum food, the preparation method comprising the following steps:

[0008] Step S1, selecting raw materials of Gynostemma pentaphyllum, preparing Gynostemma pentaphyllum concentrated juice and Gynostemma pentaphyllum powder, wherein the Gynostemma pentaphyllum powder is prepared by mixing Pingli Gynostemma pentaphyllum tetraploid and diploid Gynostemma pentaphyllum in a ratio of 3:7, and preparing red date paste, lotus seed paste and false bitter melon extract, putting the Gynostemma pentaphyllum concentrated juice, Gynostemma pentaphyllum powder, oligosaccharides, red date paste, lotus seed paste and false bitter melon extract into a wok, and stir-frying at 100-130° C.;

[0009] Step S2, stir-frying for 0.8 to 2 hours, then adding sucrose, vegetable oil, citrus fiber, hydroxypropyl starch, wolfberry, Phellodendron spinulosa and storax oil, and raising the temperature of the wok to 120° C. to 150° C., and after frying until dry, pouring the materials in the wok into a mixing device, standing for 20 to 40 minutes, and cooling the materials;

[0010] Step S3, pre-treating the milk, and then putting the treated milk, honey and jam into a stirring device, adding water to mix with the fried materials, and stirring at 1000-3000 r / min for 20-45 minutes to obtain a mixture;

[0011] Step S4: The mixture obtained in the above steps is placed in a concentration evaporator and then spray-dried to obtain a powdered composite Gynostemma pentaphyllum food.

[0012] Preferably, in step S1, the specific steps of preparing the concentrated Gynostemma pentaphyllum juice are as follows:

[0013] Step a, selecting a Gynostemma pentaphyllum medicinal material, washing the Gynostemma pentaphyllum placed in a filter water pool with sterile water for 25 to 30 minutes to remove impurities, and crushing the Gynostemma pentaphyllum raw material into coarse material using a crusher to obtain Gynostemma pentaphyllum raw material crushed material;

[0014] Step b, putting the Gynostemma pentaphyllum crushed material into a concentration device, adding 5 to 8 times of purified drinking water, stirring at a temperature of 90 to 100° C. in advance for 20 to 30 minutes, and then filtering the stirred solution through a 100 to 200 mesh sieve;

[0015] Step c, add water after filtering the residue, repeat the first two extraction steps, and then use edible alcohol as the extraction solution, perform reflux extraction for 0.8 to 1.5 hours, and after extraction, obtain Gynostemma pentaphyllum concentrated juice, and then mix the Pingli tetraploid Gynostemma pentaphyllum concentrated juice with the diploid Gynostemma pentaphyllum concentrated juice in a ratio of 1:1.

[0016] Preferably, in step S1, when preparing lotus seed paste, the lotus seeds are shelled using a peeling tool, and then the steam cooker is preheated to 80° C., the processed lotus seeds are put into the steam cooker, and the lotus seed paste is obtained after steaming.

[0017] Preferably, in step S1, the preparation steps of the false bitter melon extract are as follows:

[0018] Step 1: Select an appropriate amount of dried bitter melon, put it into a pot, add clean water to the pot, and the amount of water should be 3 to 4 cm higher than the surface of the bitter melon;

[0019] Step ②, then let the false bitter melon soak in water for 20 to 30 minutes, cover the pot after soaking, and boil at 100°C, turn to low heat after boiling and continue boiling, and filter out the medicinal liquid with a filter or gauze after boiling to obtain the first medicinal liquid;

[0020] Step ③, then add an appropriate amount of hot water into the pot, and then boil it over a low heat to obtain a second medicinal solution, mix the medicinal solutions obtained from the two decoctions evenly, and obtain the false bitter melon extract.

[0021] Preferably, in step S2, the material in the mixing device is cooled by air cooling, and the wind speed is 0.3-0.4 m / s.

[0022] Preferably, in step S3, the pretreatment of the milk is to first put the milk into a pot and preheat it at 40-60°C, then put the milk into a homogenizer and homogenize it at a pressure of 15-20Mpa, and after homogenization, perform heat preservation sterilization at 90-95°C for 5-10 minutes.

[0023] Preferably, in the step S4, during the process of concentrating the mixture, the steam pressure is 0.10 to 0.15 MPa, and the vacuum degree in the equipment is -0.05 MPa to -0.08 MPa, and then the concentrated paste is spray-dried to obtain a powder extract.

[0024] Preferably, in step S4, during the spray drying process, the air inlet temperature of the equipment is 120-170° C., the air outlet temperature of the equipment is 90-140° C., and the rotation speed of the centrifugal nozzle is 2000-40000 r / min.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention prepares a powdered composite Gynostemma pentaphyllum food by frying, mixing, concentrating and spray-drying Gynostemma pentaphyllum concentrated juice, oligosaccharides, red dates, honey, false bitter melon, vegetable oil, Gynostemma pentaphyllum micropowder and lotus seeds. The powdered composite Gynostemma pentaphyllum food not only retains the essence of traditional Gynostemma pentaphyllum food, but also achieves a double upgrade in taste and nutrition, and abandons the roughness and bitterness of traditional Gynostemma pentaphyllum food. At the same time, in the preparation process, the active ingredients and trace elements in Gynostemma pentaphyllum are retained to the maximum extent through extraction and concentration technology, and the combination with other nutritional raw materials improves the nutritional value of the food, and the eating experience is greatly improved. Moreover, the formula powder processed by the combination has the internal components of saponin, polyphenol and polysaccharide, and can supplement the trace element selenium beneficial to the human body, and is rich in nutrition. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] A method for preparing a composite gynostemma pentaphyllum food, the preparation method comprising the following steps:

[0030] Step S1, selecting raw materials of Gynostemma pentaphyllum, preparing Gynostemma pentaphyllum concentrated juice and Gynostemma pentaphyllum powder, wherein the Gynostemma pentaphyllum powder is prepared by mixing Pingli Gynostemma pentaphyllum tetraploid and diploid Gynostemma pentaphyllum in a ratio of 3:7, and preparing red date paste, lotus seed paste and false bitter melon extract, putting the Gynostemma pentaphyllum concentrated juice, Gynostemma pentaphyllum powder, oligosaccharides, red date paste, lotus seed paste and false bitter melon extract into a wok, stir-frying, and controlling the temperature at 100-130° C. The specific steps of Gynostemma pentaphyllum concentrated juice are as follows:

[0031] Step a, selecting a Gynostemma pentaphyllum medicinal material, using sterile water to rinse the Gynostemma pentaphyllum placed in a filter pool for 25 minutes to remove impurities, and using a grinder to grind the Gynostemma pentaphyllum raw material into coarse material to obtain Gynostemma pentaphyllum raw material crushed material;

[0032] Step b, putting the Gynostemma pentaphyllum crushed material into a concentration device, adding pure drinking water, the ratio of drinking water to Gynostemma pentaphyllum medicinal material is 5 times, stirring in advance, the stirring temperature is 90° C., the stirring time is 20 min, and then filtering after passing through a 100-mesh sieve;

[0033] Step c, adding water after filtering the residue, repeating the first two extraction steps, and then using edible alcohol as the extraction solution, performing reflux extraction for 0.8h, and after extraction, obtaining Gynostemma pentaphyllum concentrated juice;

[0034] Step S2, stir-frying for 0.8h, then adding sucrose, vegetable oil, citrus fiber, hydroxypropyl starch, wolfberry, Phellodendron spinulosa and storax oil, and raising the temperature of the wok to 120°C. After frying until dry, pour the materials in the wok into the mixing device, let it stand for 20min, and cool the materials by ventilation in the mixing device, with a wind speed of 0.3m / s;

[0035] Step S3, pre-treating the milk, the pre-treatment of the milk is to first put the milk into a pot and preheat it at 40°C, then put the milk into a homogenizer, homogenize it at a pressure of 15Mpa, and then perform heat preservation sterilization at 90°C for 5 minutes after homogenization, then put the treated milk, honey and jam into a stirring device, add water and mix with the fried materials, and stir at 1000r / min for 20 minutes to obtain a mixture;

[0036] Step S4, the mixture obtained in the above steps is placed in a concentration evaporator, and then spray-dried to obtain a powdered composite Gynostemma pentaphyllum food. During the concentration of the mixture, the steam pressure is 0.10Mpa, and the vacuum degree in the equipment is -0.05Mpa. The concentrated paste is then spray-dried to obtain a powder extract.

[0037] Embodiment 2:

[0038] A method for preparing a composite gynostemma pentaphyllum food, the preparation method comprising the following steps:

[0039] Step S1, selecting raw materials of Gynostemma pentaphyllum, preparing Gynostemma pentaphyllum concentrated juice and Gynostemma pentaphyllum powder, wherein the Gynostemma pentaphyllum powder is prepared by mixing Pingli Gynostemma pentaphyllum tetraploid and diploid Gynostemma pentaphyllum in a ratio of 3:7, and preparing red date paste, lotus seed paste and false bitter melon extract. When preparing lotus seed paste, the lotus seeds are shelled with a grinding tool, and only the plump and nutritious fleshy part in the middle is retained. This step usually requires the use of professional grinding tools to ensure that the surface of the lotus seeds is smooth and free of impurities, and at the same time, it is necessary to be careful to avoid damaging the integrity of the inside. Then, the steam pot is preheated to 8 After 0℃, put the processed lotus seeds into the steamer to ensure that the lotus seeds can be evenly heated during the cooking process, and no part of them will be over-ripe or under-ripe. During the cooking process, the lotus seeds will gradually soften and release a strong aroma. Finally, as the cooking time goes by, the lotus seeds will gradually turn into a fine paste like mud, and finally obtain lotus seed paste. Put Gynostemma pentaphyllum concentrated juice, Gynostemma pentaphyllum powder, oligosaccharides, red date paste, lotus seed paste and false bitter melon extract into a wok and stir-fry. The temperature is controlled at 130℃. The specific steps of Gynostemma pentaphyllum concentrated juice are as follows:

[0040] Step a, selecting a Gynostemma pentaphyllum medicinal material, washing the Gynostemma pentaphyllum placed in a filter water pool with sterile water for 25 to 30 minutes to remove impurities, and crushing the Gynostemma pentaphyllum raw material into coarse material using a crusher to obtain Gynostemma pentaphyllum raw material crushed material;

[0041] Step b, putting the Gynostemma pentaphyllum crushed material into a concentration device, adding pure drinking water, the ratio of drinking water to Gynostemma pentaphyllum medicinal material is 8 times, stirring in advance, the stirring temperature is 100° C., the stirring time is 30 minutes, and then filtering after passing through a 200-mesh sieve;

[0042] Step c, adding water after filtering the residue, repeating the first two extraction steps, and then using edible alcohol as the extraction solution, performing reflux extraction for 1.5 hours, and obtaining Gynostemma pentaphyllum concentrated juice after extraction, and then mixing the Pingli tetraploid Gynostemma pentaphyllum concentrated juice with the diploid Gynostemma pentaphyllum concentrated juice in a ratio of 1:1;

[0043] The preparation steps of the false bitter melon extract are as follows:

[0044] Step 1: Select an appropriate amount of dry false bitter melon, which is monk fruit, and make sure that it is not damp, moldy or deteriorated. Gently put the false bitter melon into the pot and spread it as flat as possible to make it evenly distributed so that it can be fully heated during subsequent soaking and decocting. Then, add an appropriate amount of clean water to the pot. The amount of water should be 3cm higher than the surface of the false bitter melon to ensure that the false bitter melon can be completely immersed in the water and fully absorb the water.

[0045] Step ②, then, let the fake bitter melon soak in water for 30 minutes. During this process, the fake bitter melon will gradually absorb water and swell, becoming full. After the soaking is completed, cover the pot and start heating and decocting. First, use high heat to quickly heat the water in the pot to boiling, that is, to 100°C. At this time, it can be observed that the water in the pot begins to boil violently, and the fake bitter melon rolls in the water. After boiling, switch to slow fire to continue decocting. Slow fire means that the fire is small, but the water can be kept in a state of continuous slight boiling. In this process, the effective ingredients of the fake bitter melon will gradually dissolve into the water. According to the texture of the fake bitter melon and the required medicinal effect, the slow fire decocting time can be 10-25 minutes. After the decocting is completed, the liquid medicine is filtered out with a filter or gauze to obtain the first liquid medicine. At this time, the first liquid medicine is already rich in the effective ingredients of the fake bitter melon, showing a unique color and taste.

[0046] Step ③, then add an appropriate amount of hot water into the pot, the amount of water can be slightly less than the amount of water in the first decoction, because the false bitter melon has absorbed water and expanded at this time, according to the above method, heat it again with high heat to boiling, and then decoct it with low heat to obtain the second medicinal liquid, and finally, mix the medicinal liquids obtained by the two decoctions evenly, so that the effective ingredients of the false bitter melon are fully extracted and integrated in the two decoctions, forming a medicinal liquid with specific medicinal effects;

[0047] Step S2, stir-frying for 2 hours, then adding sucrose, vegetable oil, citrus fiber, hydroxypropyl starch, wolfberry, Phellodendron chinense and storax oil, and raising the temperature of the wok to 150°C. After frying dry, pour the materials in the wok into a mixing device, let stand for 40 minutes, and cool the materials by ventilation in the mixing device, with a wind speed of 0.4m / s, wherein the vegetable oil is any one of corn oil, linseed oil or perilla oil, the jam is any one of fruit jam or low-sugar jam, and the oligosaccharide is any one of maltooligosaccharide, isomaltooligosaccharide, fructose oligosaccharide, sucrose oligosaccharide, milk oligosaccharide, chitin oligosaccharide, soybean oligosaccharide or galactose oligosaccharide;

[0048] Step S3, pre-treating the milk, the pre-treatment of the milk is to first put the milk into a pot and preheat it at 60° C., then put the milk into a homogenizer, homogenize it at a pressure of 20 MPa, and then perform heat preservation sterilization at 95° C. after homogenization for 10 minutes, then put the treated milk, honey, and jam into a stirring device, add water and mix with the fried materials, and stir at 3000 r / min for 45 minutes to obtain a mixture;

[0049] Step S4, the mixture obtained in the above steps is placed in a concentrating evaporator, and then spray-dried to obtain a powdered composite Gynostemma pentaphyllum food. During the concentration of the mixture, the steam pressure is 0.15Mpa, and the vacuum degree in the equipment is -0.08Mpa. The concentrated paste is then spray-dried to obtain a powder extract. During the spray drying process, the air inlet temperature of the equipment is 170°C, the air outlet temperature of the equipment is 140°C, and the speed of the centrifugal nozzle is 40000r / min.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite gynostemma pentaphyllum food, characterized in that: The components and their weight proportions are as follows: 20-30 parts of concentrated juice of Pingli tetraploid Gynostemma pentaphyllum mixed with diploid Gynostemma pentaphyllum in a ratio of 1:1, 5-8 parts of oligosaccharides, 3-6 parts of hot red dates, 0.8-2.2 parts of neutral honey, 1.5-2.8 parts of cool false bitter melon, 0.8-1.2 parts of vegetable oil, 5-12 parts of Gynostemma pentaphyllum powder mixed with Pingli tetraploid Gynostemma pentaphyllum and diploid Gynostemma pentaphyllum in a ratio of 3:7, 3 parts of lotus seeds with neutral properties. ~6 parts, neutral milk 1.2-3 parts, sucrose 0.3-0.8 parts, jam 1.2-1.6 parts, warm citrus fiber 0.25-0.62 parts, hydroxypropyl starch 0.42-0.58 parts, hot wolfberry 2.6-3.6 parts, cool phellodendron chinense 1.2-2.2 parts, storax oil 0.3-0.9 parts, cool wood peony root 0.4-0.6 parts and cool cassia seed 1.1-1.9 parts.

2. A composite gynostemma pentaphyllum food according to claim 1, characterized in that: The vegetable oil is any one of corn oil, linseed oil or perilla oil, the jam is any one of fruit jam or low-sugar jam, and the oligosaccharide is any one of maltooligosaccharide, isomaltooligosaccharide, fructose oligosaccharide, sucrose oligosaccharide, milk oligosaccharide, chitin oligosaccharide, soybean oligosaccharide or galactose oligosaccharide.

3. A method for preparing a composite gynostemma pentaphyllum food, characterized in that: The preparation method thereof comprises the following steps: Step S1, selecting raw materials of Gynostemma pentaphyllum, preparing Gynostemma pentaphyllum concentrated juice and Gynostemma pentaphyllum powder, wherein the Gynostemma pentaphyllum powder is prepared by mixing Pingli Gynostemma pentaphyllum tetraploid and diploid Gynostemma pentaphyllum in a ratio of 3:7, and preparing red date paste, lotus seed paste and false bitter melon extract, putting the Gynostemma pentaphyllum concentrated juice, Gynostemma pentaphyllum powder, oligosaccharides, red date paste, lotus seed paste and false bitter melon extract into a wok, and stir-frying at 100-130° C.; Step S2, stir-frying for 0.8 to 2 hours, then adding sucrose, vegetable oil, citrus fiber, hydroxypropyl starch, wolfberry, Phellodendron spinulosa and storax oil, and raising the temperature of the wok to 120° C. to 150° C., and after frying until dry, pouring the materials in the wok into a mixing device, standing for 20 to 40 minutes, and cooling the materials; Step S3, pre-treating the milk, and then putting the treated milk, honey and jam into a stirring device, adding water to mix with the fried materials, and stirring at 1000-3000 r / min for 20-45 minutes to obtain a mixture; Step S4: The mixture obtained in the above steps is placed in a concentration evaporator and then spray-dried to obtain a powdered composite Gynostemma pentaphyllum food.

4. The method for preparing a composite gynostemma pentaphyllum food according to claim 3, characterized in that: In step S1, the specific steps of preparing the concentrated Gynostemma pentaphyllum juice are as follows: Step a, selecting a Gynostemma pentaphyllum medicinal material, washing the Gynostemma pentaphyllum placed in a filter water pool with sterile water for 25 to 30 minutes to remove impurities, and crushing the Gynostemma pentaphyllum raw material into coarse material using a crusher to obtain Gynostemma pentaphyllum raw material crushed material; Step b, putting the Gynostemma pentaphyllum crushed material into a concentration device, adding 5 to 8 times of purified drinking water, stirring at a temperature of 90 to 100° C. in advance for 20 to 30 minutes, and then filtering the stirred solution through a 100 to 200 mesh sieve; Step c, add water after filtering the residue, repeat the first two extraction steps, and then use edible alcohol as the extraction solution, perform reflux extraction for 0.8 to 1.5 hours, and after extraction, obtain Gynostemma pentaphyllum concentrated juice, and then mix the Pingli tetraploid Gynostemma pentaphyllum concentrated juice with the diploid Gynostemma pentaphyllum concentrated juice in a ratio of 1:

1.

5. The method for preparing a composite gynostemma pentaphyllum food according to claim 3, characterized in that: In step S1, when preparing lotus seed paste, the lotus seeds are shelled using a peeling tool, and then the steam pot is preheated to 80° C., the processed lotus seeds are put into the steam pot, and the lotus seed paste is obtained after steaming.

6. The method for preparing a composite gynostemma pentaphyllum food according to claim 3, characterized in that: In step S1, the preparation steps of the false bitter melon extract are as follows: Step 1: Select an appropriate amount of dried bitter melon, put it into a pot, add clean water to the pot, and the amount of water should be 3 to 4 cm higher than the surface of the bitter melon; Step ②, then let the false bitter melon soak in water for 20 to 30 minutes, cover the pot after soaking, and boil at 100°C, turn to low heat after boiling and continue boiling, and filter out the medicinal liquid with a filter or gauze after boiling to obtain the first medicinal liquid; Step ③, then add an appropriate amount of hot water into the pot, and then boil it over a low heat to obtain a second medicinal solution, mix the medicinal solutions obtained by the two decoctions evenly, and obtain the false bitter melon extract.

7. The method for preparing a composite gynostemma pentaphyllum food according to claim 3, characterized in that: In the step S2, the material in the mixing device is cooled by air cooling, and the wind speed is 0.3-0.4 m / s.

8. The method for preparing a composite gynostemma pentaphyllum food according to claim 3, characterized in that: In step S3, the pretreatment of milk is to first put the milk into a pot and preheat it at 40-60°C, then put the milk into a homogenizer and homogenize it at a pressure of 15-20Mpa, and then perform heat preservation sterilization at 90-95°C after homogenization for 5-10 minutes.

9. The method for preparing a composite gynostemma pentaphyllum food according to claim 3, characterized in that: In the step S4, during the process of concentrating the mixture, the steam pressure is 0.10-0.15 MPa, and the vacuum degree in the equipment is -0.05 MPa--0.08 MPa, and then the concentrated paste is spray-dried to obtain a powder extract.

10. The method for preparing a composite Gynostemma pentaphyllum food according to claim 3, characterized in that: In step S4, during the spray drying process, the air inlet temperature of the equipment is 120-170° C., the air outlet temperature of the equipment is 90-140° C., and the rotation speed of the centrifugal nozzle is 2000-40000 r / min.