阅读说明：本技术 一种延长鲜蛋贮藏期的饲料添加剂 (Feed additive for prolonging storage period of fresh eggs ) 是由 张旭 戴求仲 蒋桂韬 李闯 黄璇 胡艳 李昊帮 于 2020-06-10 设计创作，主要内容包括：本发明提供了一种延长鲜蛋贮藏期的饲料添加剂,用于添加在基础饲粮中使用,所述饲料添加剂包括以下重量份数的组分：茶多酚10份-30份、姜黄素10份-30份、亚硒酸二葡萄糖酯20份-70份以及载体20份-70份。所述载体包括膨润土和统糠,所述膨润土和统糠的重量比例为1:1～3:1。每一吨基础饲粮中,所述饲料添加剂的用量为400克-600克。本发明所述的饲料添加剂,添加在基础饲粮中使用后,使得鲜蛋的抗氧化和抑菌能力大幅提高,抑制微生物生长繁殖,降低鲜蛋霉腐数量,延长鲜蛋的贮藏期。本发明所述的饲料添加剂对人体无毒无害,且具有清除体内自由基、抗氧化、抗衰老的作用,有益于人体健康。(The invention provides a feed additive for prolonging the storage period of fresh eggs, which is used by being added into basic feed, and comprises the following components in parts by weight: 10-30 parts of tea polyphenol, 10-30 parts of curcumin, 20-70 parts of selenious acid diglucoside ester and 20-70 parts of carrier. The carrier comprises bentonite and unite bran, and the weight ratio of the bentonite to the unite bran is 1: 1-3: 1. The feed additive is used in an amount of 400-600 g per ton of basal diet. After the feed additive is added into basic feed for use, the oxidation resistance and the bacteriostatic ability of fresh eggs are greatly improved, the growth and the propagation of microorganisms are inhibited, the mildew and rot quantity of the fresh eggs is reduced, and the storage period of the fresh eggs is prolonged. The feed additive is non-toxic and harmless to human bodies, has the functions of removing free radicals in the bodies, resisting oxidation and resisting aging, and is beneficial to the health of human bodies.)

1. A feed additive for prolonging the storage period of fresh eggs is used in basic diet, and is characterized by comprising the following components in parts by weight: 10-30 parts of tea polyphenol, 10-30 parts of curcumin, 20-70 parts of selenious acid diglucoside ester and 20-70 parts of carrier.

2. The feed additive according to claim 1, wherein the feed additive comprises the following components in parts by weight: 20 parts of tea polyphenol, 10 parts of curcumin, 20 parts of diglucose selenite and 50 parts of carrier.

3. The feed additive according to claim 1, wherein the carrier comprises bentonite and unite bran, and the weight ratio of the bentonite to the unite bran is 1: 1-3: 1.

4. The feed additive according to claim 3, wherein the weight ratio of bentonite to bran is 2: 1.

5. The feed additive of any one of claims 1 to 4 wherein the feed additive is present in an amount of from 400 to 600 grams per ton of basal diet.

6. The feed additive of claim 5 wherein the feed additive is present in an amount of 500 grams per ton of basal diet.

Technical Field

The invention relates to the technical field of feed production, in particular to a feed additive for prolonging the storage period of fresh eggs.

Background

Hough units, also known as Ha's units, are known in England as Haugh units and are abbreviated as HUs. HU is based on egg weight W (unit: g) and concentrated protein height H (unit: mm), and is calculated according to the formula HU-100 log (H-1.7W)^0.37+7.6) to measure the freshness of the egg. According to the specification of NY/T1758-2009 fresh egg grades, dividing the fresh eggs into 4 grades according to the number value of HU, wherein the HU greater than 72 is a special grade, the HU between 60 and 72 is a first grade, the HU between 31 and 59 is a second grade, and the HU less than 31 is a third grade. According to the classification of SB/T10638-2011 fresh eggs and fresh duck eggs, the quality of the fresh eggs and the fresh duck eggs is classified into 3 grades, the grade with HU being more than or equal to 72 is AA grade, the grade with HU being more than or equal to 60 is A grade, and the grade with HU being more than or equal to 55 is B grade.

During the storage process of fresh eggs, substances such as protein, fatty acid, enzymes, carbohydrate and the like in the eggs are subjected to a series of changes, so that the concentrated protein is gradually reduced, the thin protein is gradually increased, the concentrated protein is reduced, and then HU is reduced. The elasticity of the yolk membrane of the fresh egg is reduced and even the yolk membrane is broken in the storage process, so that the loose yolk egg is produced. The fat in the yolk is decomposed into free fatty acid, and the acid value of the yolk oil is increased. Lysozyme in egg white is reduced, microorganisms invade the egg through pores on the egg shell, protein and lecithin are decomposed, hydrogen sulfide and amines are generated, and the egg is rotten and deteriorated.

At present, the preservation method of fresh eggs is mainly refrigeration, wherein the fresh eggs are stored in a refrigeration house with the temperature of 0-4 ℃, the growth and the reproduction of microorganisms are inhibited at low temperature, the physiological change, the chemical change and the enzyme activity of the eggs are reduced, the speed of water sampling of the thick protein is delayed, the dry consumption rate is reduced, and the eggs are kept fresh for a long time. After being refrigerated for 1 month, the egg quality of the fresh eggs is not greatly different from that before being refrigerated, after being refrigerated for 3 months, the egg quality is greatly reduced, the Ha's unit of the eggs is reduced to below 30, the eggs are easy to have the phenomenon of mildew and rot, and the acid value of yolk oil is increased. The refrigeration method for storing fresh eggs has higher requirements on the design of a refrigeration house, the energy consumption is large, and the phenomenon of mildew and rot is easy to generate in the refrigeration process.

In addition to the cold storage method, the preservation method of fresh eggs includes the following steps: (1) the limewater storage method is to dissolve the quicklime, the hydrated lime and the alum in cold boiled water according to a certain proportion to prepare a fresh-keeping liquid, immerse the fresh eggs in the limewater, seal the air holes on the egg shells, reduce the respiration in the eggs and slow down the change of the physicochemical properties of the eggs. Although the method has a long preservation period which can reach 10-12 months, more containers are required for storage, and a large amount of manpower and material resources are increased. (2) A coating method for preserving fresh egg features that the chemical products (liquid paraffin, etc), animal and vegetable oil, water-soluble high-molecular substance (pullulan, arabic gum, pectin, etc) or composite material is used as the coating agent to coat the fresh egg to prevent the water and carbon dioxide in egg from evaporating via the pores on egg shell and prevent the microbes from entering egg via pores. The method is complex to operate and high in labor cost. (3) The air-regulating fresh-keeping method is a method for storing fresh eggs by using nitrogen gas, carbon dioxide gas and other gases to partially or completely replace air. The method has good fresh-keeping effect, but is difficult to maintain a certain gas concentration, and is difficult to realize and popularize.

In view of the above, there is an urgent need for a feed additive for prolonging the storage period of fresh eggs to solve the problems in the prior art.

Disclosure of Invention

The invention aims to provide a feed additive for prolonging the storage period of fresh eggs, and the specific technical scheme is as follows:

a feed additive for prolonging the storage period of fresh eggs is used by being added into basic diet, and comprises the following components in parts by weight: 10-30 parts of tea polyphenol, 10-30 parts of curcumin, 20-70 parts of selenious acid diglucoside ester and 20-70 parts of carrier.

Preferably, the feed additive comprises the following components in parts by weight: 20 parts of tea polyphenol, 10 parts of curcumin, 20 parts of diglucose selenite and 50 parts of carrier.

Preferably, the carrier comprises bentonite and unite bran, and the weight ratio of the bentonite to the unite bran is 1: 1-3: 1.

Preferably, the weight ratio of the bentonite to the bran is 2: 1.

Preferably, the feed additive is present in an amount of 400 g to 600 g per ton of basal diet.

Preferably, the feed additive is used in an amount of 500 grams per ton of basal diet.

The technical scheme of the invention has the following beneficial effects:

(1) the feed additive comprises 3 main components of tea polyphenol, curcumin and diglucose selenite. The tea polyphenol has strong antioxidation, and has multiple functions of bacteriostasis, reducing blood fat, reducing cholesterol, regulating immunity and the like, the tea polyphenol has the capability of removing free radicals, the free radicals can damage proteins to cause protein denaturation and function loss, the tea polyphenol can reduce the content of malondialdehyde in egg yolk, reduce the formation of lipid peroxide in the egg yolk and increase the stability of lipid in the egg yolk. Curcumin has wide antioxidant activity, can eliminate free radicals in vivo, has liver protecting and anticancer effects, can reduce the content of cholesterol and triglyceride, has protective effect on cardiovascular and cerebrovascular systems, and has strong anti-inflammatory and antibacterial effects. Selenium exists in various functional proteins, enzymes and muscle cells of an animal body, influences and maintains normal metabolism and immunity of the body, is a component of glutathione peroxidase (GSH-Px), and has a physiological function of playing an anti-oxidation role mainly through the GSH-Px, so that generated hydroperoxide or hydrogen peroxide can be rapidly decomposed or reduced into harmless alcohol or water, accumulation of the hydroperoxide or hydrogen peroxide in cells is prevented, and cell membranes are protected. The selenious acid diglucose ester is commonly called organic sugar selenium, is high-purity organic selenium, and is prepared by converting zymosan and sodium selenite into zymosan selenium through biological and chemical reactions under the action of a catalyst, hydrolyzing the zymosan selenium into glucose and selenious acid diglucose ester through biodegradation, and obtaining the pure selenious acid diglucose ester by adopting a membrane separation method. The selenious acid diglucoside ester has the advantages of high purity, high absorptivity, high safety and stable quality.

(2) After the feed additive is added into basic feed for use, the eggs contain catechin compounds, flavonoids and polyphenols, and the selenium content reaches 0.35-0.45 mg/kg, so that the oxidation resistance and the bacteriostatic ability of the fresh eggs are greatly improved, cell membranes can be protected, the integrity of the cell membranes is kept, and the dissociation of ovomucin and ovomucin lysozyme compounds in thick egg white is reduced, thereby keeping the egg white height, delaying the decrease of HU (bovine intestinal epithelial) in the storage process of the fresh eggs, reducing the malondialdehyde content in the egg yolks, reducing the formation of lipid peroxides in the egg yolks, delaying the increase of the fatty acid value of the egg yolks, inhibiting the growth and reproduction of microorganisms, reducing the mildew and rot quantity of the fresh eggs, and prolonging the storage period of the fresh eggs.

(3) The feed additive is non-toxic and harmless to human bodies, has the functions of removing free radicals in the bodies, resisting oxidation and resisting aging, and is beneficial to the health of human bodies.

(4) The carrier comprises bentonite and unite bran, wherein the bentonite is a porous material and can effectively adsorb tea polyphenol, curcumin and diglucose selenite, and the unite bran has a good dispersing effect and can ensure that the tea polyphenol, the curcumin and the diglucose selenite are uniformly mixed.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail with reference to examples.

Detailed Description

The invention is described in detail below with reference to examples, but can be implemented in many different ways as defined and covered by the claims.