Biological concentrated feed beneficial to removal of fishy smell of chickens, ducks and pigs and improvement of meat quality and meat fragrance
By scientifically formulating bio-concentrated feed containing small molecule peptides, perilla leaf extract, and clove extract, the problems of fishy smell and meat quality have been solved, achieving the removal of fishy smell and the enhancement of meat aroma, thus improving the quality of livestock and poultry meat.
Patent Information
- Application Number
- CN202511243682.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2025-11-28
AI Technical Summary
Existing technologies are insufficient to effectively remove the fishy smell of chicken, duck, and pork and improve meat quality and aroma. Chemical deodorizing agents may cause flavor distortion, and the addition of single plant extracts in high doses may cause palatability problems. Furthermore, high-energy, low-fiber feeds lead to fat deposition and coarse muscle fibers.
Bioconcentrated feed is prepared by scientifically combining small molecule peptides with ingredients such as perilla leaf extract, clove extract, sodium selenite, and zinc sulfate. Small molecule peptides promote the absorption of flavor substances, perilla leaf extract neutralizes off-flavors, clove extract enhances meat aroma, and selenium optimizes muscle fiber structure.
It significantly reduces fishy smell, improves meat tenderness and aroma, increases the removal rate of fishy smell and the content of meat aroma substances, and improves the quality of livestock and poultry meat.
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Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of feed, and particularly relates to a biological concentrated feed which is helpful to remove the fishy smell of chickens, ducks and pigs and improve the meat quality and meat flavor. BACKGROUND
[0002] In the livestock and poultry breeding industry, the flavor quality of meat products such as chickens, ducks and pigs directly determines their market value and consumer acceptance. The accumulation of fishy smell substances and the lack of meat flavor are key factors restricting the upgrading of the industry, and the mechanism of fishy smell production is relatively complex. The quality and flavor of meat depend on muscle tissue structure and nutritional ingredients. In current breeding, intensive feed with high energy and low fiber is easy to cause excessive deposition of fat in livestock and poultry, coarse muscle fibers, and insufficient content of fiber amino acids and flavoring substances.
[0003] At present, consumers' demand for meat products has shifted from "quantity" to "quality", and products that are organic, odorless, fresh and tender are more likely to be favored by consumers. Chemical deodorants (such as citric acid and tea polyphenols) are easy to cause flavor distortion and may be left over, and single plant extracts such as ginger extract need to be added in high doses, which is easy to cause palatability problems.
[0004] As a new type of green feed additive, small molecule peptides have the characteristics of small molecular weight and easy absorption, which can reduce metabolic burden and reduce the generation of fishy smell precursors by regulating fat metabolism pathways. However, in the prior art, small molecule peptides are rarely used alone in the field of growth promotion, and there is no related report on the use of small molecule peptides in combination with natural plant active ingredients to improve the fishy smell and meat quality of livestock and poultry. SUMMARY
[0005] The purpose of the present application is to provide a biological concentrated feed which is helpful to remove the fishy smell of chickens, ducks and pigs and improve the meat quality and meat flavor, so as to solve the problems existing in the prior art in the background art.
[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A biological concentrated feed which is helpful to remove the fishy smell of chickens, ducks and pigs and improve the meat quality and meat flavor, prepared from the following ingredients in mass parts: 10-20 parts of small molecule peptides, 5-8 parts of perilla leaf extract, 3-5 parts of clove extract, 0.01-0.03 parts of sodium selenite, 0.02-0.05 parts of zinc sulfate and 50-70 parts of carrier; wherein the small molecule peptides are small molecule peptides produced by fish protein hydrolysis.
[0007] Further, the preparation method of the small molecule peptide is as follows: taking fresh fish protein, crushing, adding 5 times of deionized water in mass, stirring and mixing uniformly; adding 0.5-1% of complex protease in mass of fish protein, adjusting pH value to 2.0, hydrolyzing at 37℃ for 6h; heating to 90℃, keeping for 15min to deactivate the enzyme; centrifuging at 25℃, 5000rpm for 15min, taking the supernatant, passing through an ultrafiltration membrane, collecting the filtrate, and spray drying to obtain the small molecule peptide.
[0008] Further, the ultrafiltration membrane has a molecular weight cut-off of 1000Da.
[0009] Further, the carrier is wheat bran passing through an 80-100 mesh sieve.
[0010] The application further provides a method for preparing the biological concentrated feed, specifically: stirring and mixing small molecule peptide, perilla leaf extract, clove extract, sodium selenite, zinc sulfate and a carrier uniformly in a container, granulating into particles with a diameter of 2-3mm, and then drying at 60℃ until the water content is less than 10% to obtain the biological concentrated feed.
[0011] The application further provides a use method of the biological concentrated feed, specifically: adding the biological concentrated feed into the basic feed of livestock and poultry at a proportion of 10-15% 30-45d before the livestock and poultry are put on the market, mixing uniformly, and feeding until the livestock and poultry are put on the market.
[0012] Compared with the prior art, the application has the following beneficial effects: The application innovatively scientifically proportionally mixes small molecule peptide from fish protein and perilla leaf extract, clove extract, selenium element and new elements. The small molecule peptide as a core nutrient carrier can promote the absorption and conversion of flavor substances by the animal body; the perilla leaf extract is rich in natural ingredients such as perillaldehyde and limonene, can effectively neutralize odor molecules, and reduce the generation of fishy substances; the clove extract contains eugenol which not only has antibacterial characteristics, but also can react with free amino acids in meat to improve the level of meat aroma; selenium and zinc elements as key trace elements participate in the synthesis of various enzymes in the animal body, optimize the muscle fiber structure, and improve the tenderness of meat. The components jointly act to improve the fishy removal rate, improve the tenderness of meat, and increase the content of meat aroma substances. DETAILED DESCRIPTION
[0013] The technical solutions of the application will be described below in a clear and complete manner. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments.
[0014] 1. Materials and methods 1.1 Biological concentrated feed See Table 1.
[0015] Table 1. Biological concentrated feed
[0016] In Table 1, the small molecule peptide is prepared as follows: fresh fish protein is pulverized and then 5 times the mass of deionized water is added, and the mixture is stirred and mixed uniformly; 0.5-1% of the mass of the fish protein of a compound protease (which is compounded by 1:1 mass ratio of pepsin with an enzyme activity of 320 U / mg and trypsin with an enzyme activity of 250 U / mg) is added, and the pH value is adjusted to 2.0, and hydrolysis is performed at 37°C for 6 hours; heating to 90°C for 15 minutes to inactivate the enzyme; centrifugation at 5000 rpm for 15 minutes at 25°C, and the supernatant is passed through an ultrafiltration membrane, and the filtrate is collected and spray dried to obtain the small molecule peptide.
[0017] Perilla leaf extract is purchased from Shaanxi Shengqi Biological Technology Co., Ltd.; clove extract is purchased from Hebei Rencan Biological Technology Co., Ltd.; wheat bran is crushed and passed through a 100-mesh sieve.
[0018] 1.2 Preparation of biological concentrated feed The small molecule peptide, perilla leaf extract, clove extract, sodium selenite, zinc sulfate, and carrier are stirred and mixed uniformly in a container, granulated into particles with a diameter of 2-3 mm, and then dried at 60°C until the water content is 8%, thereby obtaining the biological concentrated feed.
[0019] 1.3 Test method Chickens (40 days old) and ducks (45 days old) of the same breed, same age, and same health status are selected and randomly divided into the following 5 groups (30 in each group, half male and half female): Control group: basal feed (60% corn, 24% soybean meal, 11% bran, and the balance of fish meal) Research group 1: basal feed + 12.5% of the concentrated feed 1 of the basal feed; Research group 2: basal feed + 12.5% of the concentrated feed 2 of the basal feed; Research group 3: basal feed + 12.5% of the concentrated feed 3 of the basal feed; Research group 4: basal feed + 12.5% of the concentrated feed 4 of the basal feed.
[0020] The animals in each group are raised in the same standardized breeding house, and are fed three times a day at a fixed time and quantity, and are allowed to drink water freely, and the feeding is stopped 1 day before being sent to market. During the feeding period, the feces are cleaned in time to keep the breeding environment clean.
[0021] After the end of feeding, 10 animals were randomly selected from each group for slaughter, and the left pectoral muscle was taken as a detection sample, the fishy smell was described by blind evaluation, the protein content was determined by Kjeldahl nitrogen fixation method, the muscle shear force value was determined by a texture meter, the fiber number was determined (paraffin section was prepared, the muscle fiber diameter was measured under a microscope, and the fiber number / mm was counted 2 ), and the meat was boiled to describe the meat aroma by blind evaluation. The results are shown in Table 2.
[0022] Table 2 Experimental results
[0023] As shown in Table 2, the small molecule peptides from fish protein sources, perilla leaf extract, clove extract, selenium element and new elements are scientifically matched in the application, and the components jointly act to improve the fishy smell removal rate, improve the meat tenderness, and increase the meat aroma content.
[0024] The foregoing description of specific exemplary embodiments of the application is intended to be illustrative only and is not intended to limit the application to the precise forms described. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the application. The exemplary embodiments are chosen and described in order to explain the principles of the application and its practical application and to allow others skilled in the art to understand the application for various exemplary embodiments with various modifications as are suited to the particular use contemplated. It is intended that the scope of the application be defined by the claims and their equivalents.
Claims
1. A bio-concentrated feed that helps remove the fishy smell of chicken, duck, and pork and improves the meat quality and aroma, characterized in that, The bioconcentrated feed is prepared from the following components by weight: 10-20 parts of small molecule peptides, 5-8 parts of perilla leaf extract, 3-5 parts of clove extract, 0.01-0.03 parts of sodium selenite, 0.02-0.05 parts of zinc sulfate, and 50-70 parts of carrier; wherein the small molecule peptides are small molecule peptides produced by hydrolysis of fish protein.
2. The bio-concentrated feed according to claim 1, characterized in that, The preparation method of the small molecule peptide is as follows: Take fresh fish protein, crush it, add 5 times its weight of deionized water, and stir to mix evenly; add 0.5-1% of fish protein mass of complex protease, adjust the pH value to 2.0, and hydrolyze at 37℃ for 6 hours; heat to 90℃ and keep warm for 15 minutes to inactivate the enzyme; centrifuge at 25℃ and 5000 rpm for 15 minutes, take the supernatant and pass it through an ultrafiltration membrane, collect the filtrate and spray dry to obtain the small molecule peptide.
3. The bio-concentrated feed according to claim 2, characterized in that, The ultrafiltration membrane has a molecular weight cutoff of 1000 Da.
4. The bio-concentrated feed according to claim 1, characterized in that, The carrier is wheat bran that has passed through an 80-100 mesh sieve.
5. A method for preparing the bio-concentrated feed of claim 1, characterized in that, Specifically, the small molecule peptides, perilla leaf extract, clove extract, sodium selenite, zinc sulfate and carrier are stirred and mixed evenly in a container, granulated into particles with a diameter of 2-3 mm, and then dried at 60°C until the moisture content is less than 10%, thus obtaining the bio-concentrated feed.
6. A method of using the bio-concentrated feed according to claim 1, characterized in that, 30-45 days before slaughter, add the bioconcentrated feed to the basic feed of livestock and poultry at a ratio of 10-15%, mix evenly, and feed until slaughter.