Complex enzyme for biodegrading mycotoxin in feed

A mycotoxin and biodegradation technology, applied in the field of compound enzymes, which can solve the problems of a variety of mycotoxins contamination

Inactive Publication Date: 2010-06-09
FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a compound enzyme that biodegrades mycotoxins in feed to solve t...

Method used

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Embodiment Construction

[0009] A mycotoxin degrading complex enzyme, comprising the following enzymes: aflatoxin degrading enzyme, zearalenone degrading enzyme and vomitoxin degrading enzyme.

[0010] The manufacture method of compound enzyme, comprises the following steps:

[0011] 1. Strain preparation, expand the enzyme-producing bacteria to obtain three liquid strains;

[0012] 2. The above-mentioned three kinds of liquid strains are subjected to batching, moistening, sterilization, cooling, inoculation, fermentation, solid-liquid separation, ultrafiltration concentration, and compounding to obtain a compound enzyme preparation.

[0013] Compound enzyme preparation can achieve the following indicators:

[0014] 1. Sensory indicators: brown fine powder, no agglomeration.

[0015] 2. Hygienic indicators (included in every kilogram of finished product)

[0016] E. coli: Negative.

[0017] Salmonella: Negative.

[0018] Lead≤30mg.

[0019] Inorganic arsenic ≤ 10mg.

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Abstract

The invention discloses a method for biodegrading mycotoxin in feed by using a mycotoxin degrading enzyme, and belongs to the field of feed resources. The method comprises the following steps: directly mixing degrading complex enzyme of aflatoxin, zearalenone and deoxynivalenol with moldy feed raw materials, concentrated feed or complete feed; and detoxifying the feed polluted by the mycotoxin to ensure that the degradation rate of the mycotoxin reaches over 80 percent. The method can effectively remove the mycotoxin from the feed, improves animal health and animal production performance, and can effectively solve the problem of feed resource shortage in China.

Description

technical field [0001] The invention belongs to the field of feed resources, and is a composite enzyme for improving feed utilization ratio and animal health through reasonable collocation of three kinds of mycotoxin degrading enzymes that are most frequently polluted in feed. Background technique [0002] Mycotoxins are metabolites produced by fungi during the process of metabolizing nutrients in feed and feed ingredients. Mycotoxins are mainly produced by Aspergillus, Fusarium, Penicillium and Ergot. No matter in the field or storage period, as long as the conditions are suitable, these fungi can produce mycotoxins. The negative impact of mycotoxins on animal performance and human health is enormous. According to the statistics of the Food and Agriculture Organization of the United Nations, about 25% of the world's grains are contaminated by mycotoxins to varying degrees, and the economic losses caused by mycotoxins amount to millions of dollars every year. According to...

Claims

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Application Information

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IPC IPC(8): A23K1/00A23K3/00
Inventor 陈志敏丁宏标乔宇王金全丁玮
Owner FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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