CN112674223A - Nutritional composition containing rice protein peptide and application thereof - Google Patents
Nutritional composition containing rice protein peptide and application thereof Download PDFInfo
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- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention belongs to the technical field of biology, and particularly relates to a nutritional composition containing rice protein peptides and application thereof. The nutritional composition containing the rice protein peptide provided by the invention comprises the following components in parts by weight: 25-55 parts of compound protein powder, 10-40 parts of rice protein peptide, 10-20 parts of immunopotentiator, 8-15 parts of compound enzyme preparation, 0.8-1.5 parts of vitamin A acetate and 0.5-2.4 parts of zinc sulfate. The nutritional composition containing the rice protein peptide provided by the invention is rich in nutrition, can supplement various nutritional substances for animals, enables the animals to be balanced in nutrition, can effectively improve the immunity and disease resistance of the animals, keeps the intestinal microecological balance, promotes the animals to absorb the nutritional substances, reduces the use of antibiotics, and ensures the health of piglets.
Description
Technical Field
The invention belongs to the technical field of biology, and particularly relates to a nutritional composition containing rice protein peptides and application thereof.
Background
The pig is the main breeding animal in China, the pork is also the main meat food of residents in China, and the pork demand rises every year. At present, the factors influencing the development of the pig industry in China mainly include the immaturity of the pig raising technology and small scale investment. The immature pig raising technology is a difficult technical problem to overcome, and specific technology screening is carried out according to biological characteristics, varieties, types and the like of pigs in the pig raising process. In the modern livestock and poultry breeding process, in order to prevent and treat animal diseases, excessive antibiotic products are often used to ensure animal health, but the use of excessive antibiotics often causes the quality of animal meat products and products thereof to be reduced and the antibiotic resistance to be enhanced, the human health is also seriously affected by the problem of antibiotics through the transmission of food chains, and after the antibiotics are used or abused for a long time, normal beneficial microbial flora in animals is killed while pathogenic microorganisms are inhibited, so that the normal microbial ecosystem of the organisms is unbalanced, and the endogenous infection or double infection of the animals is caused. Meanwhile, livestock and poultry depend on antibiotics, so that the growth and development of an animal immune system are inhibited or the immune function of the animal is reduced, and the disease resistance is reduced. In order to overcome various disadvantages caused by antibiotic and other medicinal additives, scientists in various countries around the world strive to find and develop novel feed additives without toxic and side effects.
Protein is the main nutrient substance of animals, the mode of direct addition is mostly adopted in the prior feed, the utilization rate is not high, and the digestion and absorption of the protein in food are actually completed by utilizing the active transport mechanism of peptide carriers existing in the intestinal mucosa striation margin after being hydrolyzed into small peptides by digestive tract protease. Although the content of protein in rice is lower than that of wheat flour and most of grain varieties, the essential amino acid composition of the rice is relatively complete. Compared with the ideal protein, the rice protein has slightly insufficient lysine isoleucine and threonine, but compared with the wheat protein, except that the content of isoleucine is less, various essential amino acids are abundant. The amino acid components of the rice protamine are relatively complete and contain various amino acids essential for animal growth, so that the rice protein has higher nutritive value than wheat and is close to complete protein. The biological value of the rice protein is 77, which is the first in various grains and can be compared favorably with white fish (biological value 76), shrimp and beef.
Chinese patent application CN103766609A discloses a method for preparing polypeptide feed additive, which is called dephenolized cottonseed protein powder, soybean cake powder, corn protein powder and rice protein powder, and is added with clear water to be mixed uniformly, heated to 115 ℃ and 125 ℃ for 10-15 minutes, cooled to 65 ℃, added with papain to be hydrolyzed, cooled to 45 ℃, added with neutral protease to be hydrolyzed continuously at 45 ℃, and then subjected to high-temperature enzyme deactivation at 121 ℃ for 20 minutes after the hydrolysis is finished, and then the finished product is obtained by homogenization and spray drying. The Chinese patent application CN 109953187A polypeptide feed additive and the preparation method thereof comprise 20-50 parts of mixed protein powder, 15-40 parts of lactobacillus plantarum mixed bacterial powder, 1-3 parts of pepper powder, 3-8 parts of astragalus extract, 3-6 parts of soybean polypeptide, 5-20 parts of bacillus subtilis powder and 3-12 parts of ganoderma lucidum solid fermentation culture, wherein the mixed protein powder comprises the following components in parts by weight: the dephenolized cottonseed protein powder accounts for 10-20% of the total mass of the mixed protein powder, the soybean cake powder accounts for 15-25% of the total mass of the mixed protein powder, the corn protein powder accounts for 35-45% of the total mass of the mixed protein powder, and the rice protein powder accounts for 35-45% of the total mass of the mixed protein powder. Although the feed additive contains protein substances, can supplement nutrition for animals, accelerate the growth speed of piglets and has no antibiotic addition, the feed additive has no obvious effects on the aspects of oxidation resistance, immunity improvement and the like, and probably because a plurality of amino acids and proteins are added, the feed additive is easy to influence the digestion of the pigs and destroy the appetite of the pigs,
in conclusion, there is a need to develop a feed additive containing polypeptide, which can effectively promote animal growth, improve disease resistance of the body, and improve digestion rate of piglets, etc. while providing nutrients for the piglets.
Disclosure of Invention
In order to solve the problems of the prior art, the present invention aims to provide a nutritional composition containing rice protein peptides. The nutritional composition containing the rice protein peptide provided by the invention can be used as a feed additive to supplement various nutritional substances for animals, so that the nutrition of the animals is balanced, the immunity and disease resistance of the animals can be effectively improved, the intestinal microecological balance is kept, the absorption of the animals on the nutritional substances in the feed is promoted, the conversion rate of the feed is improved, the use of antibiotics is reduced, and the health of piglets is guaranteed.
The technical scheme of the invention is as follows:
a nutritional composition containing rice protein peptide comprises the following components in parts by weight: 25-55 parts of compound protein powder, 10-40 parts of rice protein peptide, 10-20 parts of immunopotentiator, 8-15 parts of compound enzyme preparation, 0.8-1.5 parts of vitamin A acetate and 0.5-2.4 parts of zinc sulfate.
Further, the nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
Furthermore, the compound protein powder is two or more of soybean protein powder, dephenolized cottonseed protein powder, pea protein powder and whey protein powder.
Further, the immunopotentiator comprises eucalyptol, acanthopanax senticosus extract and fumaric acid in a weight ratio of 1-4: 7-15: 3-9.
Furthermore, the immunopotentiator comprises eucalyptol, acanthopanax extract and fumaric acid according to the weight ratio of 2:11: 7.
Further, the compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 7: (1-5).
Furthermore, the compound enzyme preparation is prepared by mixing xylanase and glucose oxidase according to a weight ratio of 7:3, and (3).
In addition, the invention also provides a preparation method of the nutritional composition containing the rice protein peptide, which comprises the following steps:
s1, adding water with the mass being 10-15 times that of the compound protein powder into the compound protein powder, heating to 30-37 ℃, adding rice protein peptide, an immunopotentiator, vitamin A acetate and zinc sulfate into the compound protein powder, and mixing and stirring uniformly to obtain a mixture I;
s2, cooling the mixture I obtained in the step S1 to 18-24 ℃, adding a complex enzyme preparation, and uniformly mixing and stirring to obtain a mixture II;
s3, freeze-drying the mixture II prepared in the step S2, and collecting dried powder to obtain the compound II.
The rotation speed during mixing and stirring in the steps S1 and S2 is 120-180 rpm/min, and the stirring time is 10-20 min.
The invention also provides application of the nutritional composition containing the rice protein peptide in preparation of feed additives.
The nutrient composition containing the rice protein peptide is mainly prepared by compounding various protein powder and rice protein, and the peptide is a nutrient necessary for animals. In recent years, studies on nutritional physiology have found that peptides, which are the major digestion products of proteins, play important roles in amino acid digestion, absorption, and animal nutritional metabolism. The peptide is one of digestion and absorption forms of protein in intestinal tracts, and particularly, the absorption speed of the peptide consisting of 2-10 amino acids is higher than that of free amino acids. The peptide has no problem of competition with amino acid absorption in animal digestive tract, and can promote the transport of free amino acid and raise the utilization of protein, so as to raise the digestion rate and utilization of feed obviously. Meanwhile, the feed also comprises an immunopotentiator which is composed of eucalyptol, acanthopanax extract and fumaric acid according to a certain proportion, can reduce the pH value of the gastrointestinal tract, activate pepsin, improve the gastrointestinal tract microflora, inhibit the growth of harmful bacteria, enable beneficial bacteria to breed in large quantities, and further improve the disease resistance and the immunity level of animals.
In addition, the rice protein peptide-containing nutritional composition prepared by the invention is added with a complex enzyme preparation which is prepared from xylanase and glucose oxidase according to a certain proportion, when the complex enzyme preparation enters an animal body along with feed, the complex enzyme preparation can decompose fibrous polysaccharide in the digestive tract of livestock and poultry, reduce the viscosity of chyme, promote the absorption of nutrient substances and reduce diarrhea of livestock and poultry, thereby promoting the growth of livestock and poultry and improving the feed conversion rate, and can also remove oxygen in the feed, thereby effectively preventing food and feed from deteriorating, eliminating pathogenic factors in vivo especially in intestinal tract, optimizing the intestinal environment, improving the feed intake of animals, and effectively replacing products such as antibiotics, probiotics and the like
Compared with the prior art, the nutritional composition containing the rice protein peptide provided by the invention has the following advantages:
(1) the nutritional composition containing the rice protein peptide can be used as a feed additive to supplement various nutritional substances for animals, so that the nutrition of the animals is balanced, the immunity and disease resistance of the animals can be effectively improved, the absorption of the animals on the nutritional substances in the feed is promoted, and the conversion rate of the feed is improved;
(2) according to the nutritional composition containing the rice protein peptide, provided by the invention, various protein powder and the rice protein peptide are added for compounding, and an immunopotentiator and a complex enzyme preparation are also added, so that the components are synergistic, and the immune level and the digestibility of animals are further improved;
(3) the nutritional composition containing the rice protein peptide provided by the invention is simple in preparation process, all components are mixed in a liquid state, the mixing uniformity can be fully ensured, the composition is more uniform after drying, the production cost is effectively reduced, and the nutritional composition containing the rice protein peptide is further beneficial to popularization in the feed industry.
Detailed Description
The present invention is further illustrated by the following description of specific embodiments, which are not intended to limit the invention, and various modifications and improvements can be made by those skilled in the art based on the basic idea of the invention, but the invention is within the protection scope of the invention.
Rice protein peptide, purchased from hibiscus biotechnology ltd; the soybean protein powder, the pea protein powder and the whey protein powder are purchased from Shenzhen Lefu biotechnology limited; dephenolized cottonseed protein powder, Xinjiang cymbidium vegetable protein Co., Ltd; the Acanthopanax senticosus extract is obtained from Shanghai Yien chemical technology GmbH; fumaric acid, cat # n: IR-21604, available from Shanghai coconut Biotech, Inc.; xylanase was purchased from saao chemical ltd, guangzhou; glucose oxidase was purchased from Shanghai leaf Biotech Ltd.
The other reagents used in the invention are common reagents and can be purchased from conventional reagent production and sale companies.
Example 1A nutritional composition containing rice protein peptides
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 25 parts of compound protein powder, 10 parts of rice protein peptide, 10 parts of immunopotentiator, 8 parts of compound enzyme preparation, 0.8 part of vitamin A acetate and 0.5 part of zinc sulfate.
The composite protein powder is prepared from soybean protein powder and pea protein powder according to the weight ratio of 1: 1.
The compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 7: 5.
The preparation method of the nutritional composition containing the rice protein peptide comprises the following steps:
s1, adding water with the mass being 10 times that of the compound protein powder into the compound protein powder, heating the compound protein powder to 30 ℃, adding rice protein peptide, an immunopotentiator, vitamin A acetate and zinc sulfate into the compound protein powder, and mixing and stirring the mixture uniformly to obtain a mixture I;
s2, cooling the mixture I obtained in the step S1 to 18 ℃, adding the complex enzyme preparation, and uniformly mixing and stirring to obtain a mixture II;
s3, freeze-drying the mixture II prepared in the step S2, and collecting dried powder to obtain the compound II.
The rotation speed during mixing and stirring in the steps S1 and S2 is 120rpm/min, and the stirring time is 10 min.
Example 2A nutritional composition containing rice protein peptides
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
The composite protein powder is soybean protein powder, dephenolized cottonseed protein powder and pea protein powder in a weight ratio of 1:1: 1.
The immunopotentiator comprises eucalyptol, acanthopanax extract and fumaric acid according to the weight ratio of 2:11: 7.
The compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 7:3, and (3).
The preparation method of the nutritional composition containing the rice protein peptide comprises the following steps:
s1, adding water with the mass being 12 times that of the compound protein powder into the compound protein powder, heating the compound protein powder to 33 ℃, adding rice protein peptide, an immunopotentiator, vitamin A acetate and zinc sulfate into the compound protein powder, and mixing and stirring the mixture uniformly to obtain a mixture I;
s2, cooling the mixture I obtained in the step S1 to 20 ℃, adding the complex enzyme preparation, and uniformly mixing and stirring to obtain a mixture II;
s3, freeze-drying the mixture II prepared in the step S2, and collecting dried powder to obtain the compound II.
The rotation speed during mixing and stirring in the steps S1 and S2 is 150rpm/min, and the stirring time is 15 min.
Example 3A nutritional composition containing rice protein peptides
A nutritional composition containing rice protein peptide comprises the following components in parts by weight: 55 parts of compound protein powder, 40 parts of rice protein peptide, 20 parts of immunopotentiator, 15 parts of compound enzyme preparation, 1.5 parts of vitamin A acetate and 2.4 parts of zinc sulfate.
The composite protein powder is composed of soybean protein powder and whey protein powder according to the weight ratio of 1: 1.
The immunopotentiator comprises eucalyptol, acanthopanax extract and fumaric acid according to the weight ratio of 4:7: 3.
The compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 7: 1.
The preparation method of the nutritional composition containing the rice protein peptide comprises the following steps:
s1, adding water with the mass 15 times of that of the compound protein powder, heating to 37 ℃, adding rice protein peptide, an immunopotentiator, vitamin A acetate and zinc sulfate, and mixing and stirring uniformly to obtain a mixture I;
s2, cooling the mixture I obtained in the step S1 to 24 ℃, adding the complex enzyme preparation, and uniformly mixing and stirring to obtain a mixture II;
s3, freeze-drying the mixture II prepared in the step S2, and collecting dried powder to obtain the compound II.
The rotation speed during mixing and stirring in the steps S1 and S2 is 180rpm/min, and the stirring time is 20 min. Comparative example 1A nutritional composition containing rice protein peptide
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
The composite protein powder is soybean protein powder, dephenolized cottonseed protein powder and pea protein powder in a weight ratio of 1:1: 1.
The immunopotentiator is composed of acanthopanax senticosus extract and fumaric acid according to the weight ratio of 11: 7.
The compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 7:3, and (3).
The nutritional composition containing rice protein peptides was prepared in a manner similar to that described in example 2.
Compared with example 2, comparative example 1 is different in that eucalyptol is not added to the immunopotentiator, and other parameters and operations are the same as example 2.
Comparative example 2A nutritional composition containing rice protein peptide
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
The composite protein powder is soybean protein powder, dephenolized cottonseed protein powder and pea protein powder in a weight ratio of 1:1: 1.
The immunopotentiator is composed of eucalyptol and fumaric acid according to the weight ratio of 2: 7.
The compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 7:3, and (3).
The nutritional composition containing rice protein peptides was prepared in a manner similar to that described in example 2.
In comparison with example 2, comparative example 2 is different in that the immunopotentiator is not added with acanthopanax senticosus extract, and other parameters and operations are the same as example 2.
Comparative example 3A nutritional composition containing rice protein peptide
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
The composite protein powder is soybean protein powder, dephenolized cottonseed protein powder and pea protein powder in a weight ratio of 1:1: 1.
The immunopotentiator comprises eucalyptol and acanthopanax root extract according to the weight ratio of 2: 11.
The compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 7:3, and (3).
The nutritional composition containing rice protein peptides was prepared in a manner similar to that described in example 2.
In comparison with example 2, comparative example 3 is different in that fumaric acid is not added to the immunopotentiator, and other parameters and operations are the same as those of example 2.
Comparative example 4A nutritional composition containing rice protein peptide
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
The composite protein powder is soybean protein powder, dephenolized cottonseed protein powder and pea protein powder in a weight ratio of 1:1: 1.
The immunopotentiator comprises eucalyptol, acanthopanax extract and fumaric acid according to the weight ratio of 1:1: 1.
The compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 7:3, and (3).
The nutritional composition containing rice protein peptides was prepared in a manner similar to that described in example 2.
Compared with example 2, comparative example 4 is different in that the immunopotentiator is composed of eucalyptol, acanthopanax senticosus extract and fumaric acid in a weight ratio of 1:1:1, and other parameters and operations are the same as example 2. Comparative example 5A nutritional composition containing rice protein peptide
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
The composite protein powder is soybean protein powder, dephenolized cottonseed protein powder and pea protein powder in a weight ratio of 1:1: 1.
The immunopotentiator comprises eucalyptol, acanthopanax extract and fumaric acid according to the weight ratio of 2:11: 7.
The compound enzyme preparation is prepared from cellulase and glucose oxidase according to the weight ratio of 7:3, and (3).
The nutritional composition containing rice protein peptides was prepared in a manner similar to that described in example 2.
Compared with example 2, comparative example 5 is different in that xylanase is replaced by cellulase in the complex enzyme preparation, and other parameters and operations are the same as example 2.
Comparative example 6A nutritional composition containing rice protein peptide
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
The composite protein powder is soybean protein powder, dephenolized cottonseed protein powder and pea protein powder in a weight ratio of 1:1: 1.
The immunopotentiator comprises eucalyptol, acanthopanax extract and fumaric acid according to the weight ratio of 2:11: 7.
The compound enzyme preparation is xylanase.
The nutritional composition containing rice protein peptides was prepared in a manner similar to that described in example 2.
Compared with the compound enzyme preparation of example 2, the compound enzyme preparation of comparative example 6 is different in that glucose oxidase is not added in the compound enzyme preparation, and other parameters and operation are the same as those of example 2.
Comparative example 7A nutritional composition containing rice protein peptide
The nutritional composition containing the rice protein peptide comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
The composite protein powder is soybean protein powder, dephenolized cottonseed protein powder and pea protein powder in a weight ratio of 1:1: 1.
The immunopotentiator comprises eucalyptol, acanthopanax extract and fumaric acid according to the weight ratio of 2:11: 7.
The compound enzyme preparation is prepared from xylanase and glucose oxidase according to a weight ratio of 1: 1.
The nutritional composition containing rice protein peptides was prepared in a manner similar to that described in example 2.
Compared with example 2, comparative example 7 is different in that the complex enzyme preparation is prepared by xylanase and glucose oxidase according to the weight ratio of 1:1 composition, other parameters and operation were the same as in example 2.
Test example I, Immunity measurement test
1. Test materials: the rice protein peptide-containing nutritional composition prepared in examples 1 to 3 and comparative examples 1 to 7 of the present invention.
2. The test method comprises the following steps:
selecting 110 piglets with clinical health and similar weight for 28 days, randomly dividing the piglets into 11 groups, namely, an example 1-3 group, a comparative example 1-7 group and a control group, wherein each group comprises 10 piglets; under the same breeding conditions, the nutritional compositions containing rice protein peptides prepared in the embodiments 1-3 and the comparative examples 1-7 are added into common commercial feeds in the embodiments 1-3 and the comparative examples 1-7, the specific gravity of the nutritional compositions is 10% of the feed amount, the common commercial feeds are fed into a control group, after the feeding for 30 days, 5mL of blood is collected from the anterior vena cava of each group of piglets, and the concentrations of immunoglobulin IgA, IgG and IgM are detected.
3. Test results
The test results are shown in table 1.
TABLE 1 Immunometric assay results
As is clear from table 2, the concentrations of immunoglobulin IgG, IgM, and IgA in the sera of piglets fed with the feeds containing the rice protein peptide nutritional compositions prepared in examples 1 to 3 of the present invention were greatly improved as compared with those of the control group (ordinary commercial feeds), and the best example of the present invention was found to be the best example of example 2. The experimental data of comparative examples 1-7 show that the concentrations of immunoglobulin IgG, IgM and IgA in the piglet serum after being fed for 30 days are greatly reduced compared with those of the experimental groups, which shows that the nutritional composition containing the rice protein peptide provided by the invention can effectively improve the cellular immune function of the organism so as to help improve the growth performance and immunity of the pig.
Test example II digestive absorption function test
1. Test materials: the rice protein peptide-containing nutritional composition prepared in example 2 of the invention and comparative examples 1 to 7.
2. The test method comprises the following steps: under the same culture conditions, the nutritional composition containing the rice protein peptide prepared in the invention of example 2 and the comparative examples 1 to 7 is used as a feed additive to be used as a test group, and the feed on the market is used as a control group. 270 piglets at the early stage of nursing (38 days old) are divided into 9 groups, namely an example 2 group, comparative examples 1-7 groups and a control group, and each group has 30 piglets; the control group is fed with common commercial feed, the group of the example 2 and the group of the comparative examples 1 to 7, the nutritional composition containing the rice protein peptide prepared in the invention of the example 2 and the comparative examples 1 to 7 is added into the common commercial feed, the specific gravity of the nutritional composition is 8 percent of the feed amount, the nutritional composition is fed for 30 days, and the average daily gain of piglets is recorded.
3. Test results
The test results are shown in table 2.
TABLE 2 Effect of the nutritional composition of the invention comprising rice protein peptides on the growth status of piglets
As can be seen from table 2, when the feed containing the nutritional composition containing rice protein peptides prepared in example 2 of the present invention is eaten, the feed conversion rate is significantly improved, and the daily gain of piglets is effectively increased, compared with the control group (common commercial feed), wherein the daily gain of example 2 is 0.85 kg. The results show that the pig feed added with the nutritional composition containing the rice protein peptide has good breeding effect on the piglets in the early stage of nursing, can effectively improve the growth rate of the piglets, can effectively help to improve the feed conversion rate in the stage of weaning the piglets, and effectively improves the economic benefit of piglet feeding.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A nutritional composition containing rice protein peptide is characterized by comprising the following components in parts by weight: 25-55 parts of compound protein powder, 10-40 parts of rice protein peptide, 10-20 parts of immunopotentiator, 8-15 parts of compound enzyme preparation, 0.8-1.5 parts of vitamin A acetate and 0.5-2.4 parts of zinc sulfate.
2. The rice protein peptide-containing nutritional composition of claim 1, which comprises the following components in parts by weight: 40 parts of compound protein powder, 30 parts of rice protein peptide, 14 parts of immunopotentiator, 12 parts of compound enzyme preparation, 1.2 parts of vitamin A acetate and 1.6 parts of zinc sulfate.
3. The rice protein peptide-containing nutritional composition as claimed in claim 1 or 2, wherein the composite protein powder is two or more of soybean protein powder, dephenolized cottonseed protein powder, pea protein powder and whey protein powder.
4. The rice protein peptide-containing nutritional composition according to claim 1 or 2, wherein the immunopotentiator comprises eucalyptol, acanthopanax senticosus extract and fumaric acid in a weight ratio of 1-4: 7-15: 3-9.
5. The rice protein peptide-containing nutritional composition according to claim 4, wherein the immunopotentiator comprises eucalyptol, acanthopanax senticosus extract and fumaric acid in a weight ratio of 2:11: 7.
6. A nutritional composition containing rice protein peptides as claimed in claim 1 or 2 wherein the complex enzyme preparation is prepared from xylanase and glucose oxidase in a weight ratio of 7: (1-5).
7. A nutritional composition containing rice protein peptides as claimed in claim 6, wherein the complex enzyme preparation is prepared from xylanase and glucose oxidase in a weight ratio of 7:3, and (3).
8. A method of preparing a nutritional composition comprising rice protein peptides as claimed in any one of claims 1 to 7, comprising the steps of:
s1, adding water with the mass being 10-15 times that of the compound protein powder into the compound protein powder, heating to 30-37 ℃, adding rice protein peptide, an immunopotentiator, vitamin A acetate and zinc sulfate into the compound protein powder, and mixing and stirring uniformly to obtain a mixture I;
s2, cooling the mixture I obtained in the step S1 to 18-24 ℃, adding a complex enzyme preparation, and uniformly mixing and stirring to obtain a mixture II;
s3, freeze-drying the mixture II prepared in the step S2, and collecting dried powder to obtain the compound II.
9. The method for preparing a nutritional composition containing rice protein peptides as claimed in claim 8, wherein the mixing and stirring in steps S1 and S2 are performed at a rotation speed of 120-180 rpm/min for a stirring time of 10-20 min.
10. Use of a nutritional composition comprising rice protein peptides as claimed in any one of claims 1 to 9 in the preparation of a feed additive.
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