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Application of dihydromyricetin laurate as feed additive

A technology of dihydromyricetin and feed additives, applied in application, animal feed, animal feed, etc., can solve the problems of high cost of enzymatic method, difficult separation and purification of microbial products, and difficulty in industrialization, and achieve good anti-oxidation effect

Active Publication Date: 2015-02-18
贾正印
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the commonly used structural modification methods of dihydromyricetin include: microbial method, enzymatic method and chemical method. The first two methods have mild reaction conditions and strong selectivity, but the enzymatic method is expensive and difficult to industrialize, and the product of microbial method is difficult to separate and purify. Therefore, there are few research reports, and the chemical method is mature, easy to control, and the most common.

Method used

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  • Application of dihydromyricetin laurate as feed additive
  • Application of dihydromyricetin laurate as feed additive

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1: the preparation of dihydromyricetin laurate:

[0025] Dissolve 320g of dihydromyricetin in 500ml of N,N-dimethylformamide, slowly add 720ml of lauroyl chloride dropwise under stirring, keep warm at 40°C for 20 hours after dropping, add 2000ml of ethyl acetate to dilute the reaction solution, and then use 3000ml of 2% sodium carbonate aqueous solution, washed with 3000ml of hot water at 40°C, and washed the residue twice with 3000ml of ice water after cooling. The organic phase was concentrated to dryness, and the product was vacuum-dried for 4 hours to obtain 700 g of yellow-green waxy dihydromyricetin laurate.

Embodiment 2

[0027] Determination of the solubility of dihydromyricetin laurate: add 50g of salad oil or 100g of water to a 250ml Erlenmeyer flask, quantitatively add dihydromyricetin and dihydromyricetin laurate, shake in a water bath shaker at 45-50°C After 1 hour, let stand for 10 hours to observe the dissolution. If it is completely dissolved, continue to add until insoluble matter appears, and centrifuge to remove the insoluble matter. The resulting insoluble matter was washed with hot water, dried in vacuum for 4 hours, and weighed. The added amount minus the amount of insoluble matter is the dissolved mass.

[0028] The measured dihydromyricetin solubility is 0.067g / 100g oil, 0.273g / 100g water; the dihydromyricetin laurate solubility is 5.76g / 100g oil, 0.087g / 100g water.

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Abstract

The invention relates to application of dihydromyricetin laurate as a feed additive and particularly relates to application of the dihydromyricetin laurate as a feed additive for improving the processing quality of meat. Preferably, in the application, the adding amount of the dihydromyricetin laurate is that the adding amount of the dihydromyricetin laurate in a chicken feed is 2mg / kg-10mg / kg and the adding amount of the dihydromyricetin laurate in a pig feed is 5mg / kg-15mg / kg. According to the application, a hydroxyl with low anti-oxidization activity of dihydromyricetin is subjected to esterification decoration by lauric acid and a hydroxyl with high activity and a special structure part of a flavone molecule are kept, so that the dihydromyricetin laurate has an anti-oxidization property, also has the lipotropism and can express the anti-oxidization effect in a living body. The dihydromyricetin laurate is used as the feed additive for improving the processing quality of the meat; the use amount is only 1 / 10 of that of the dihydromyricetin and the same effect can be reached.

Description

technical field [0001] The present invention relates to the field of feed additives, especially the field of feed additives for improving the quality of livestock products. Specifically, the present invention relates to the application of dihydromyricetin laurate as a feed additive. More specifically, the present invention relates to dihydromyricetin lauric acid Application of esters as feed additives to improve the quality of meat processing. Background technique [0002] Dihydromyricetin (DMY) is a kind of dihydroflavonol, which is the main active ingredient in vine tea, a medicinal and edible plant. Anti-inflammatory and other effects. Patent No. ZL2005100870335 discloses the application of dihydromyricetin as a feed additive to improve the quality of meat processing, and dihydromyricetin 20-75mg / kg, 50-135mg / kg is added to chicken and pig feed. [0003] However, because dihydromyricetin has strong water solubility and poor fat solubility, it is difficult to make dihydr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/16
Inventor 贾正印
Owner 贾正印