CN113718007A - Preparation method and process flow of small molecule compound peptide - Google Patents
Preparation method and process flow of small molecule compound peptide Download PDFInfo
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- CN113718007A CN113718007A CN202111030760.3A CN202111030760A CN113718007A CN 113718007 A CN113718007 A CN 113718007A CN 202111030760 A CN202111030760 A CN 202111030760A CN 113718007 A CN113718007 A CN 113718007A
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- preparation
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- peptide
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P21/00—Preparation of peptides or proteins
- C12P21/06—Preparation of peptides or proteins produced by the hydrolysis of a peptide bond, e.g. hydrolysate products
Abstract
The invention discloses a preparation method and a process flow of small molecule compound peptide, belonging to the field of preparation of small molecule compound peptide, wherein the small molecule compound peptide can be prepared into powder or liquid preparation for oral administration, and can also be applied to specific functional aspects by combining with a formula; in the aspect of bioavailability, the small molecular compound peptide is many times of the absorption and utilization of common bovine bone collagen and sea cucumber protein; in the aspect of antioxidant effect, the small molecule compound peptide can improve the activity of superoxide dismutase and glutathione peroxidase, inhibit lipid peroxidation, remove hydroxyl free radical, reduce tissue oxidation and protect organisms.
Description
Technical Field
The invention relates to the field of preparation of small molecule compound peptides, in particular to a preparation method and a process flow of small molecule compound peptides.
Background
Peptides are small molecular substances indispensable for the connection of proteins and amino acids, and have a large number of functions and efficacies in the human body and are indispensable tissue components of the human body. The peptide has certain regulating function on nutrition and immunity of human body, improves human body constitution, and increases immune barrier, cellular immunity and humoral immunity of human body. In addition, peptides can regulate cholesterol metabolism in humans, for example, when cholesterol deficiency or peptide deficiency occurs in humans, cholesterol metabolism in the body is disturbed. The peptides are also capable of regulating the hormonal and endocrine secretory status of the human body. If the peptide is lacking in the body, endocrine imbalance and endocrine dyscrasia occur.
The preparation of small molecule peptide is usually carried out from animals and plants, most of the existing methods for preparing small molecule peptide are complex to operate, and the activity of the finished product of small molecule peptide is poor.
Disclosure of Invention
The invention provides a preparation method and a process flow of a small molecule compound peptide for solving the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method and a process flow of small molecule compound peptide comprise the following steps:
s1, washing and crushing: according to the weight ratio of 90: 5: 5, weighing fresh ox bones, donkey-hide gelatin and fresh sea cucumbers according to the proportion, respectively soaking the fresh ox bones, the donkey-hide gelatin and the fresh sea cucumbers in warm water at the temperature of 80-90 ℃, cleaning and decontaminating, and respectively cutting the fresh ox bones, the donkey-hide gelatin and the fresh sea cucumbers into small pieces of 3-4 cm;
s2, high-pressure cooking: boiling fresh ox bones, donkey-hide gelatin and fresh sea cucumbers cut into small pieces in S1 at constant temperature and constant pressure for 8-12 hours at the temperature of 125-135 ℃ and the pressure of 0.15-0.20 MPa, and discharging residues to obtain mixed soup;
s3, magnetization: putting the mixed soup obtained in the step S2 into a strong magnetizer, and magnetizing for 8-10 seconds under a 4000-4800 gauss magnetic field;
s4, enzymolysis: heating the magnetized mixed soup in the S3 to 100-150 ℃, sterilizing, cooling to 45-55 ℃, adjusting the pH to 7.5-8.5, adding trypsin accounting for 0.8-1.2% of the weight of fresh ox bone, donkey-hide gelatin and fresh sea cucumber, and performing first enzymolysis for 2.5-3 hours; then adjusting the pH value to 6.0-6.5, and then adding bone-specific enzyme accounting for 0.3-0.4% of the weight of the fresh ox bone, the donkey-hide gelatin and the fresh sea cucumber, wherein the enzymolysis time is 3-4 hours; adjusting the pH value to 3.0-4.0, adding pepsin which is 0.6-1.0% of the weight of fresh ox bone, donkey-hide gelatin and fresh sea cucumber to carry out third enzymolysis to obtain an enzymolysis liquid;
s5, centrifugal separation: separating the enzymolysis liquid obtained in the step S4 by a high-speed centrifuge to obtain digestion-free small-molecule compound peptide, compound amino acid solution and other water-soluble nutrient components of the raw materials;
s6, sterilizing and inactivating the digestion-free small-molecule compound peptide and compound amino acid solution obtained by separation in S5 and other water-soluble nutrient components of the raw materials, keeping the temperature of the feed liquid at 80-90 ℃ for 15-25 seconds by using a sterilizer, and obtaining a sterilized and inactivated concentrated solution;
s7, concentrating the concentrated solution obtained after sterilization and enzyme deactivation in the S6 into more than 40% by a double-effect evaporator to obtain a small molecule compound peptide mixed solution product;
s8, hermetically packaging the small molecule compound peptide mixed liquid product obtained in S7, or pre-freezing the small molecule compound peptide mixed liquid product in S7 at the temperature of-40 ℃, then carrying out decompression freeze drying at the temperature of 1-10 pa to-40-60 ℃, preparing a small molecule compound peptide powder product, and hermetically packaging.
Preferably, the rotation speed value during the separation of the high-speed centrifuge in the step S5 is set within a range of 16000 to 18000 r/min.
Preferably, the S4 is stirred for 2-3 minutes every 1 hour in the enzymolysis process, so that the enzymolysis is uniformly and fully carried out.
Preferably, the pH of the S4 is adjusted by using a 10% NaOH solution or by using a 10% HC1 solution.
Preferably, the bone specific enzyme in S4 is one or more of dicer, exonuclease and flavor enzyme, and the activity of the bone specific enzyme is 500000 u/g.
Preferably, the trypsin activity in S4 is 2500000 u/g.
Preferably, the pepsin activity in S4 is 500000 u/g.
Preferably, the molecular weight of the small molecule composite peptide mixed solution product in S7 is 600-1400Da, the peptide segment is distributed in 300-2800Da, and is mainly distributed in 300-1100 Da.
Compared with the prior art, the invention provides a preparation method and a process flow of small molecule composite peptide, which has the following beneficial effects:
the invention has the beneficial effects that: the small molecule compound peptide can be prepared into powder or liquid preparation for oral administration, can be combined with a formula to be applied to specific functional aspects, and has good solubility performance and high dissolution rate even in cold water; in the aspect of bioavailability, the small molecular compound peptide is many times of the absorption and utilization of common bovine bone collagen and sea cucumber protein; in the aspect of antioxidant effect, the small molecule compound peptide can improve the activity of superoxide dismutase and glutathione peroxidase, inhibit lipid peroxidation, remove hydroxyl free radical, reduce tissue oxidation and protect organisms.
Drawings
Fig. 1 is a preparation flow chart of a specific embodiment of a preparation method and a process flow of a small molecule composite peptide provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
a preparation method and a process flow of small molecule compound peptide comprise the following steps:
s1, washing and crushing: according to the weight ratio of 90: 5: 5, weighing fresh ox bones, donkey-hide gelatin and fresh sea cucumbers according to the proportion, respectively soaking the fresh ox bones, the donkey-hide gelatin and the fresh sea cucumbers in warm water at the temperature of 80-90 ℃, cleaning and decontaminating, and respectively cutting the fresh ox bones, the donkey-hide gelatin and the fresh sea cucumbers into small pieces of 3-4 cm;
s2, high-pressure cooking: boiling fresh ox bones, donkey-hide gelatin and fresh sea cucumbers cut into small pieces in S1 at constant temperature and constant pressure for 8-12 hours at the temperature of 125-135 ℃ and the pressure of 0.15-0.20 MPa, and discharging residues to obtain mixed soup;
s3, magnetization: putting the mixed soup obtained in the step S2 into a strong magnetizer, and magnetizing for 8-10 seconds under a 4000-4800 gauss magnetic field;
s4, enzymolysis: heating the magnetized mixed soup in the S3 to 100-150 ℃, sterilizing, cooling to 45-55 ℃, adjusting the pH to 7.5-8.5, adding trypsin accounting for 0.8-1.2% of the weight of fresh ox bone, donkey-hide gelatin and fresh sea cucumber, and performing first enzymolysis for 2.5-3 hours; then adjusting the pH value to 6.0-6.5, and then adding bone-specific enzyme accounting for 0.3-0.4% of the weight of the fresh ox bone, the donkey-hide gelatin and the fresh sea cucumber, wherein the enzymolysis time is 3-4 hours; adjusting the pH value to 3.0-4.0, adding pepsin which is 0.6-1.0% of the weight of fresh ox bone, donkey-hide gelatin and fresh sea cucumber to carry out third enzymolysis to obtain an enzymolysis liquid;
s5, centrifugal separation: separating the enzymolysis liquid obtained in the step S4 by a high-speed centrifuge to obtain digestion-free small-molecule compound peptide, compound amino acid solution and other water-soluble nutrient components of the raw materials;
s6, sterilizing and inactivating the digestion-free small-molecule compound peptide and compound amino acid solution obtained by separation in S5 and other water-soluble nutrient components of the raw materials, keeping the temperature of the feed liquid at 80-90 ℃ for 15-25 seconds by using a sterilizer, and obtaining a sterilized and inactivated concentrated solution;
s7, concentrating the concentrated solution obtained after sterilization and enzyme deactivation in the S6 into more than 40% by a double-effect evaporator to obtain a small molecule compound peptide mixed solution product;
s8, hermetically packaging the small molecule compound peptide mixed liquid product obtained in S7, or pre-freezing the small molecule compound peptide mixed liquid product in S7 at the temperature of-40 ℃, then carrying out decompression freeze drying at the temperature of 1-10 pa to-40-60 ℃, preparing a small molecule compound peptide powder product, and hermetically packaging.
Further, it is preferable that the rotation speed value at the time of the high-speed centrifuge separation in S5 is set to range from 16000 to 18000 r/min.
Further, preferably, the S4 enzymolysis process is performed by stirring for 2-3 minutes every 1 hour, so that the enzymolysis is uniformly and sufficiently performed.
Further, it is preferable that the pH of the S4 is adjusted by using a 10% NaOH solution or a 10% HC1 solution.
Further, preferably, the bone specific enzyme in S4 is one or more of dicer, exonuclease and flavor enzyme, and the activity of the bone specific enzyme is 500000 u/g.
Further, preferably, the activity of trypsin in S4 is 2500000 u/g.
Further, preferably, the pepsin activity in S4 is 500000 u/g.
Further, preferably, the molecular weight of the small molecule composite peptide mixed solution product in S7 is 600-1400Da, the peptide segment is distributed in 300-2800Da, and mainly distributed in 300-1100 Da.
Example 2:
mixing and packaging the traditional Chinese medicine materials and the small molecule compound peptide mixed liquid product according to the following proportion: 10-40 parts of small-molecule compound peptide mixed liquor product, 10-12 parts of black sesame, 5-10 parts of wolfberry fruit, 10-12 parts of mulberry, 1-5 parts of cinnamon, 1-10 parts of dried orange peel, 5-10 parts of peach kernel, 5-10 parts of chicken's gizzard-membrane, 5-10 parts of sweet almond, 5-10 parts of fingered citron, 1-5 parts of mint, 1-5 parts of fructus amomi and 5-10 parts of honey-fried licorice root, and extracting the mixture into crude medicinal material liquid after mixing; and mixing the small-molecule composite peptide mixed solution with the extracted medicinal material raw solution, and decocting at the constant temperature of 60-80 ℃ for 3-5 hours to fully fuse the active peptide and the medicinal liquid for use.
Due to poor living and living, heavy working pressure and increasingly severe natural environment of modern people, a plurality of people are in sub-health state, and the product is designed for relieving the sub-health constitution of modern people; the application and development of modern science and technology and biotechnology provide strong scientific and technological support for the purification and utilization of effective ingredients of the finished product, and the traditional process flow is improved to a brand-new height, so that the efficacy of the effective ingredients of the product is guaranteed;
the product has effects in improving immunity, regulating blood sugar metabolism, lowering blood sugar, reducing blood lipid, resisting oxidation (aging), resisting allergy, resisting radiation, loosening bowel to relieve constipation, promoting digestion, improving memory, improving sleep quality, nourishing yin, replenishing blood, improving anemia, and resisting bacteria and virus;
the main component of the product is small molecular peptide which can be completely absorbed through small intestinal mucosa quickly and directly enter cells for conversion and utilization. Can regulate physiological functions of various systems and cells of a human body, maintain normal activities of in vivo hormones, digestive cell growth, circulation, nerves, reproduction and other systems, is also an important nutrient component required by growth and development of the human body, has a special biological function, can prevent and treat thrombus, hypertension and hyperlipidemia, resists fatigue, bacteria and viruses, delays aging, stimulates youth activity, and improves the immunity of the human body;
donkey-hide gelatin is neutral in nature and sweet in taste, and contains various amino acids such as lysine, arginine, histidine and the like as main ingredients. Has effects in nourishing yin, moistening dryness, replenishing blood, and stopping bleeding. Modern pharmacology proves that the donkey-hide gelatin also has the effects of enhancing the hematopoietic function of bone marrow, promoting the generation of hemoglobin and platelets, improving the internal environment of a human body, improving the immune function of the human body and the like; the donkey-hide gelatin peptide has the effects of improving immunity and tonifying qi and blood, the donkey-hide gelatin is a good substance for tonifying qi and blood, the sub-health of many people is also caused by mild anemia, and the donkey-hide gelatin peptide can be absorbed by a hundred percent of human bodies and is more easily accepted by the public compared with the donkey-hide gelatin;
sea cucumber peptide, sea cucumber, is not only a precious food, but also a rare medicinal material. Sea cucumber is known as Hai Wei Ge. Sea cucumber has the effects of tonifying kidney, replenishing vital essence, nourishing yin, tonifying yang and tonifying yin and yang. The sea cucumber has the effects of improving memory, delaying gonadal aging, preventing arteriosclerosis and diabetes, resisting tumors and the like. The sea cucumber has strong repairing and regenerating functions, can quickly heal wounds, repair damaged intestines and stomachs for many years, repair an immune system, repair islets, restore hematopoiesis, promote growth and development and the like;
wolfberry fruit, the traditional Chinese medicine of wolfberry fruit thinks: has effects in nourishing liver and kidney, improving eyesight, and moistening lung. Can be used for treating deficiency of liver-yin and kidney-yin, dizziness, blurred vision, visual deterioration, soreness of waist and knees, nocturnal emission, diabetes, asthenia, and cough. Modern pharmacology indicates that the active ingredients of the health-care food comprise polysaccharide, betaine, organic acid and the like, and the health-care food has the effects of enhancing human immunity, relieving physical fatigue, resisting oxidation, preventing aging and the like;
mulberry, mulberry, is sweet in taste and cold in nature, has the efficacies of nourishing yin and enriching blood, promoting the production of body fluid to quench thirst and moistening the intestines. Polysaccharides, tannic acid, malic acid and the like in the mulberry have the effects of delaying aging, promoting immunity, improving skin blood supply and the like;
poria cocos, has the effects of facilitating water and dampness removal, invigorating spleen, soothing the nerves and the like. Modern pharmacy shows that the polysaccharide, the triterpene and the compound thereof in the tuckahoe have the effects of reducing blood sugar, blood fat, memory improvement and the like;
the black sesame and the black sesame have the effects of tonifying liver and kidney, benefiting strength, moistening intestine and dryness, and replenishing essence and marrow. In ancient health preserving science of China, black sesame has been historically regarded as an important life-prolonging food. The effective components of the black sesame, such as oleic acid, linoleic acid, sesamin and the like, have the effects of reducing blood sugar and blood fat and relaxing bowel.
Example 3:
pre-freezing the mixed liquid product of the small molecule compound peptide at the temperature of minus 40 ℃, then carrying out decompression freeze drying at the temperature of 1-10 pa and minus 40-minus 60 ℃ to obtain the small molecule compound peptide freeze-dried powder, and breaking the walls of the small molecule compound peptide freeze-dried powder into powder through homology of medicine and food to mix the powder to prepare meal replacement powder, wherein the small molecule compound peptide: the proportion of the wall-broken mixture is 1-4: 9-6;
wherein the wall-breaking mixture is: 15-25 parts of phaseolus calcaratus, 20-25 parts of coix seed, 20-25 parts of white hyacinth bean, 10-25 parts of Chinese yam and 15-25 parts of gordon euryale seed;
the product has the functions of strengthening spleen, stimulating appetite, removing dampness, losing weight and regulating immunity, is used as meal replacement powder, and has a remarkable regulating effect on the physical condition of people with obesity; the product can not replace medicines, but all adopts food materials of 'homology of medicine and food' specified by related national departments, so that a human body in a sub-health state is adjusted to a normal state as soon as possible, thereby avoiding adverse reactions brought to the human body by the medicine bias of pure medicines and realizing the food therapy effect;
the meal replacement powder can reduce the blood fat content of a human body, has a remarkable improvement effect on the conditions of fatty liver, hyperlipidemia and the like, has a certain regulation effect on the blood sugar concentration of the human body, can avoid the increase of the blood sugar concentration after eating, and is beneficial to the alleviation and improvement of diabetes;
red bean, also known as red bean, red bean and vermilion bean, is a mature seed of leguminous plant red bean, which is a half-year-old wound herbaceous plant, and is cultivated all over the country, and the pods are harvested in summer and autumn when mature, dried in the sun, and collected for later use. Seeds are eaten; when used as a medicine, has the effects of promoting blood circulation, enriching blood, strengthening spleen, removing dampness, inducing diuresis and relieving swelling;
coix seeds, which are grown in warm and humid ten-sided land and valley stream ditches, are more common below the elevation of 2000 m. The nutritional value is rich, the pharmacological effect is achieved, the effects of oxidation resistance, inflammation resistance, cancer resistance, tumor resistance, blood sugar reduction, pain relief and the like are achieved, and the nutritional health-care tea is well loved by consumers;
bai Dou is treasure, and its peel (testa lablab), flower and leaf can be used as raw materials. The testa Dolichoris has effects of invigorating spleen and eliminating dampness, and can be used for treating dysentery, diarrhea, loempe, edema, etc.; flos Dolichoris has effects of relieving summer-heat, eliminating dampness, regulating stomach and invigorating spleen, and can be used for treating summer-heat dampness due to summer injury, fever, diarrhea, dysentery, leucorrhea with red and white discharge, traumatic injury and swelling, etc.; the folium Dolichoris has effects of removing summer-heat, promoting diuresis, removing toxic substance and relieving swelling, and can be used for treating summer-heat, dampness, vomiting and diarrhea, skin ulcer, furuncle, toxic swelling, and snake and insect bite;
the tuber of the Chinese yam is rich in starch and can be used for vegetables and foods; the medicine can tonify the deficiency of spleen and stomach, and treat deficiency of vital energy, asthenia, dyspepsia, spermatorrhea, enuresis, innominate toxic swelling, etc.;
semen euryales is recorded in the book Shennong Ben Cao Jing (Shennong's herbal Jing), listed as the top grade, and named as Jitouzi (Chinese pharmacopoeia) of the calendar edition, is a dry mature seed kernel of 1-year-old hydrophytic herbal gorgon euryale belonging to Nymphaeaceae, has the effects of tonifying kidney and securing essence, tonifying spleen and stopping diarrhea, and clearing damp and stopping leukorrhagia, and is mainly used for treating nocturnal emission, spermatorrhea, enuresis, frequent micturition, spleen deficiency and chronic diarrhea, whitish and turbid urine and leukorrhagia. The ginseng in water and the longan in water are reputed as traditional Chinese medicinal materials and precious natural supplements;
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A preparation method and a process flow of small molecule compound peptide are characterized by comprising the following steps:
s1, washing and crushing: according to the weight ratio of 90: 5: 5, weighing fresh ox bones, donkey-hide gelatin and fresh sea cucumbers according to the proportion, respectively soaking the fresh ox bones, the donkey-hide gelatin and the fresh sea cucumbers in warm water at the temperature of 80-90 ℃, cleaning and decontaminating, and respectively cutting the fresh ox bones, the donkey-hide gelatin and the fresh sea cucumbers into small pieces of 3-4 cm;
s2, high-pressure cooking: boiling fresh ox bones, donkey-hide gelatin and fresh sea cucumbers cut into small pieces in S1 at constant temperature and constant pressure for 8-12 hours at the temperature of 125-135 ℃ and the pressure of 0.15-0.20 MPa, and discharging residues to obtain mixed soup;
s3, magnetization: putting the mixed soup obtained in the step S2 into a strong magnetizer, and magnetizing for 8-10 seconds under a 4000-4800 gauss magnetic field;
s4, enzymolysis: heating the magnetized mixed soup in the S3 to 100-150 ℃, sterilizing, cooling to 45-55 ℃, adjusting the pH to 7.5-8.5, adding trypsin accounting for 0.8-1.2% of the weight of fresh ox bone, donkey-hide gelatin and fresh sea cucumber, and performing first enzymolysis for 2.5-3 hours; then adjusting the pH value to 6.0-6.5, and then adding bone-specific enzyme accounting for 0.3-0.4% of the weight of the fresh ox bone, the donkey-hide gelatin and the fresh sea cucumber, wherein the enzymolysis time is 3-4 hours; adjusting the pH value to 3.0-4.0, adding pepsin which is 0.6-1.0% of the weight of fresh ox bone, donkey-hide gelatin and fresh sea cucumber to carry out third enzymolysis to obtain an enzymolysis liquid;
s5, centrifugal separation: separating the enzymolysis liquid obtained in the step S4 by a high-speed centrifuge to obtain digestion-free small-molecule compound peptide, compound amino acid solution and other water-soluble nutrient components of the raw materials;
s6, sterilizing and inactivating the digestion-free small-molecule compound peptide and compound amino acid solution obtained by separation in S5 and other water-soluble nutrient components of the raw materials, keeping the temperature of the feed liquid at 80-90 ℃ for 15-25 seconds by using a sterilizer, and obtaining a sterilized and inactivated concentrated solution;
s7, concentrating the concentrated solution obtained after sterilization and enzyme deactivation in the S6 into more than 40% by a double-effect evaporator to obtain a small molecule compound peptide mixed solution product;
s8, hermetically packaging the small molecule compound peptide mixed liquid product obtained in S7, or pre-freezing the small molecule compound peptide mixed liquid product in S7 at the temperature of-40 ℃, then carrying out decompression freeze drying at the temperature of 1-10 pa to-40-60 ℃, preparing a small molecule compound peptide powder product, and hermetically packaging.
2. The preparation method and process flow of small molecule composite peptide according to claim 1, wherein the preparation method comprises the following steps: and the set range of the rotating speed value in the S5 during the separation of the high-speed centrifugal machine is 16000-18000 r/min.
3. The preparation method and process flow of small molecule composite peptide according to claim 1, wherein the preparation method comprises the following steps: stirring every 1 hour for 2-3 minutes in the S4 enzymolysis process to ensure that the enzymolysis is uniformly and fully carried out.
4. The preparation method and process flow of small molecule composite peptide according to claim 1, wherein the preparation method comprises the following steps: the pH of the S4 is adjusted by using a 10% NaOH solution or a 10% HC1 solution.
5. The preparation method and process flow of small molecule composite peptide according to claim 1, wherein the preparation method comprises the following steps: the bone specific enzyme in the S4 adopts one or more of incision enzyme, excision enzyme and flavor enzyme, and the activity of the bone specific enzyme is 500000 u/g.
6. The preparation method and process flow of small molecule composite peptide according to claim 1, wherein the preparation method comprises the following steps: the trypsin activity in S4 was 2500000 u/g.
7. The preparation method and process flow of small molecule composite peptide according to claim 1, wherein the preparation method comprises the following steps: the pepsin activity in S4 was 500000 u/g.
8. The preparation method and process flow of small molecule composite peptide according to claim 1, wherein the preparation method comprises the following steps: the molecular weight of the small molecule composite peptide mixed liquid product in S7 is 600-1400Da, the peptide segment is distributed at 300-2800Da, and is mainly distributed at 300-1100 Da.
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