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Procyanidins oligomer and its preparing method and use

A proanthocyanidin, oligomer technology, applied in the application, animal feed, animal feed and other directions, can solve problems such as reducing enzyme activity, achieve the effect of disappearing taste astringency, reducing pollution, strong antioxidant function and antibacterial function

Inactive Publication Date: 2005-08-17
浙江德清利欣生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the combination of tannins and protein in the feed leads to the absorption and utilization of the protein in the feed by the animal body; on the other hand, the combination of tannins and intestinal digestive enzymes reduces the activity of enzymes in the animal intestines

Method used

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  • Procyanidins oligomer and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Extraction and decomposition of fresh Pinus massoniana pine needle tannins.

[0027]Chop 10kg of fresh pine needles into small pieces, add 50kg to 60kg of water, and heat at 90-100°C for 30 minutes. Remove the residue by filtration, continue heating and concentrating the supernatant to 5 kg of the original volume, add 20 kg of 27.3% hydrogen peroxide, adjust the pH to 7 with sodium hydroxide, and heat to 50° C. for 30 minutes to degrade. After the degradation is completed, continue heating and stirring to volatilize clean hydrogen peroxide, concentrate to 3 kg, and obtain golden or brown product oligomer proanthocyanidins.

Embodiment 2

[0028] Example 2: Decomposition of larch extract

[0029] Add 1 kg of larch extract to 1 kg of water, then add 2 kg of 50% hydrogen peroxide, adjust the pH to 7 with sodium hydroxide solution, and heat to 30°C for 30 minutes to degrade. After the degradation is completed, continue heating and stirring, and add 1 to 2 kg of water to supplement, volatilize clean hydrogen peroxide, concentrate to 2 kg, and obtain golden or brown product oligomer proanthocyanidins.

Embodiment 3

[0030] Example 3: Black Wattle Bark Tannin

[0031] Add 1 kg of black wattle bark tannin to 1 kg of water, then add 2 kg of 50% hydrogen peroxide, adjust the pH to 6 with sodium hydroxide, and heat to 40°C for 30 minutes to degrade. After the degradation is completed, continue heating and stirring, and add 1-2 kg of water to supplement, volatilize clean hydrogen peroxide, concentrate to 2 kg, and obtain golden or brown product oligomer proanthocyanidins.

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Abstract

The present invention relates to one kind of protocyanidin oligomer and its production process and application in food, health article, feed additive and animal medicine. The protocyanidin oligomer is dimer, trimer and tetramer, and is produced with condensated tannin as material and through oxidizing degradation with hydrogen peroxide or potassium chlorate as oxidant to obtain yellow or brown semi-transparent liquid and subsequent separation and purification. The protocyanidin oligomer of the present invention has powerful antioxidant function and antibiotic function, and my be used in food owing to no astringent taste and no negative effect on the activity of amylase in digestive tract, as feed additive to reduce coccidiosis infection of fowls and low cholesterol content in egg.

Description

(1) Technical field [0001] The invention relates to an oligomer proanthocyanidin, a production process of the oligomer proanthocyanidin, and an application of the oligomer proanthocyanidin in food, health products, feed additives and veterinary medicine. In particular, it refers to oligomer proanthocyanidins with a polymerization degree below 4, which is made by degrading high-polymer proanthocyanidins with a polymerization degree above 9-10. This feed additive can effectively reduce the infection rate and death of poultry animals to coccidiosis Rate. (2) Background technology [0002] In the field of phytochemistry, proanthocyanidins refer to all substances that can produce anthocyanidins under hot acid treatment, including monomeric proanthocyanidins and polymeric proanthocyanidins. Monomeric proanthocyanidins correspond to flavan-4-ols and flavan-3,4-ols, and polymeric proanthocyanidins correspond to condensed tannins, red powder and phenolic acids. [0003] Polymer pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/30A23K40/00C07D311/62
Inventor 王欣陈燕军汪曼丽王晖
Owner 浙江德清利欣生物科技有限公司
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