阅读说明：本技术 杜仲提取物在制备改善鸡肉鲜味的饲料中的应用 (Application of eucommia ulmoides extract in preparation of feed for improving delicate flavor of chicken ) 是由 冯杰 丁浩轩 黄林 于 2020-06-08 设计创作，主要内容包括：本发明公开了一种杜仲提取物在制备改善鸡肉鲜味的饲料中的应用,该杜仲提取物主要活性成分为多糖、黄酮类和绿原酸。提高鸡肉鲜味的机理是杜仲提取物促进了鸡肉中蛋白质、鲜味氨基酸和肌苷酸的合成。本发明为杜仲提取物在提高鸡肉鲜味的应用中提供了理论依据。(The invention discloses an application of an eucommia ulmoides extract in preparing a feed for improving the delicate flavor of chicken. The mechanism for improving the delicate flavor of chicken is that the eucommia ulmoides extract promotes the synthesis of protein, delicate flavor amino acid and inosinic acid in the chicken. The invention provides a theoretical basis for the application of the eucommia ulmoides extract in improving the delicate flavor of chicken.)

1. Application of eucommia ulmoides extract in preparing feed for improving chicken delicate flavor.

2. The use of claim 1, wherein the amount of the eucommia ulmoides extract added to the feed is greater than 300 mg/kg.

3. The use of claim 1, wherein the eucommia ulmoides extract comprises more than or equal to 20% of polysaccharide, more than or equal to 8% of flavonoid and more than or equal to 5% of chlorogenic acid by mass.

4. The use according to claim 1, characterized in that the feed for improving the umami taste of chicken is a feed for increasing the content of glutamic acid and proline in chicken.

5. The use according to claim 1 or 4, characterized in that the feed for improving the umami taste of chicken is a feed for increasing the inosinic acid content in chicken.

6. The use according to claim 1 or 4, characterized in that the feed for improving the umami taste of chicken is a feed for increasing the protein content in chicken.

7. The use according to claim 1, wherein the feed is free of antibiotics and antibiotic additives.

Technical Field

The invention belongs to the field of agriculture, and particularly relates to application of an eucommia ulmoides extract in preparation of a feed for improving the delicate flavor of chicken.

Background

With the popularization of nutrition consciousness and body building sports, more and more consumers put higher demands on food materials. The chicken breast contains abundant animal protein and low fat content, and has the advantages of low price, easy acquisition and convenient cooking. Therefore, the nutrition is widely advocated by consumers with nutrition concept. However, conventional chicken breast cooking means often result in a hard mouthfeel which is difficult for consumers to accept. The food material is the key for determining the meat quality and the taste, so that the selection of a proper feed additive for improving the chicken breast quality is one of measures for effectively improving the flavor and the taste.

The eucommia ulmoides extract is a bioactive component extracted from eucommia ulmoides leaves, and is rich in polysaccharide, flavone, chlorogenic acid and other antioxidant active components. The eucommia ulmoides extract not only has obvious improvement on the growth performance of the broiler chicken, but also can promote the intestinal digestion function of the broiler chicken. However, no report related to the efficient improvement of the inosinic acid content and the umami amino acid composition in chicken by the eucommia ulmoides extract exists so far.

Compared with the influence of the eucommia ulmoides extract on the content of inosinic acid and the composition of amino acid in the chicken breast, the invention discusses the way of improving the taste of the chicken breast from the perspective of the natural plant feed additive, and provides reference for producing delicious and healthy chicken products.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a scheme for improving the chicken delicate flavor and to provide an application of an eucommia ulmoides extract in improving the chicken delicate flavor. The invention provides a foundation for improving the mouthfeel of chicken.

The technical scheme of the invention is as follows:

the invention discloses application of an eucommia ulmoides extract in preparing a feed for improving the delicate flavor of chicken.

Furthermore, the addition amount of the eucommia ulmoides extract in the feed is more than 300 mg/kg.

Furthermore, in the eucommia ulmoides extract, the mass percentage content of polysaccharide is more than or equal to 20%, the mass percentage content of flavonoid compound is more than or equal to 8%, and the mass percentage content of chlorogenic acid is more than or equal to 5%.

Further, the preparation method of the eucommia ulmoides extract comprises the following steps: 1) soaking folium Eucommiae in 55-65 deg.C water for 4 hr; 2) mixing the soaking extractive solutions; 3) filtering the extractive solution, and concentrating under reduced pressure at 60 deg.C; 4) spray drying the concentrated solution; 5) to obtain folium Eucommiae extract.

Furthermore, the feed for improving the delicate flavor of chicken is a feed for increasing the content of glutamic acid and proline in chicken.

Furthermore, the feed for improving the delicate flavor of chicken is a feed for increasing the content of inosinic acid in the chicken.

Furthermore, the feed for improving the delicate flavor of chicken is a feed for increasing the protein content in chicken.

Furthermore, the feed does not contain antibiotics and antibiotic additives.

The research idea of the invention is as follows:

1) the eucommia ulmoides extracts are added in a gradient manner in the daily ration of the broiler, and growth performance of the eucommia ulmoides extracts is compared with that of a control group, an antibiotic group and a low-dose eucommia ulmoides extract and antibiotic group, so that the optimal eucommia ulmoides extract additive amount in the daily ration of the broiler is sought; the reason for adding antibiotics and the combination of low-dose eucommia ulmoides extract and antibiotics is to discuss the possibility of replacing and using antibiotics by eucommia ulmoides extract.

2) On the basis of determining the most suitable eucommia ulmoides extract additive amount in the daily ration of the broiler, the intestinal digestion function of the broiler is evaluated through the intestinal morphology, the digestive enzyme activity and the nutrient digestibility.

3) After the eucommia ulmoides extracts with proper dosage are determined to promote the growth performance and the digestion function of the broiler chickens, the influence of the eucommia ulmoides extracts on the chicken delicate flavor is further discussed.

4) The delicate flavor of the chicken is measured by adopting the mixture ratio of inosinic acid, approximate nutrient content and amino acid content in the chicken, and an optimal eucommia ulmoides extract adding scheme is provided.

The invention has the beneficial effects that:

provides a new mode for improving the delicate flavor of chicken, namely, the eucommia ulmoides extract is used for promoting the growth and digestion functions of broiler chickens, so that the contents of inosinic acid, protein and delicate flavor amino acid in the chicken are improved. The invention improves a new scheme for developing healthy green food and provides reference for the development of replacing antibiotic additives.

Drawings

FIG. 1 shows the effect of eucommia ulmoides extract on the villus morphology of duodenum of broiler chicken (400, scale 80 μm).

Detailed Description

The invention will be further described with reference to specific examples, to which, however, the scope of the invention is not limited.

The broilers used in the following examples were fast-growing south yellow-feathered broilers.