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Rapeseed meal detoxifying treatment method

A processing method and technology of rapeseed meal, which is applied in the field of non-toxic treatment of rapeseed meal, can solve the problems affecting the direct feedability of rapeseed meal, affecting the palatability and nutritional value of animals, etc., to achieve rich amino acid composition and improve utilization value , The effect of low drying energy consumption

Inactive Publication Date: 2015-11-25
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, the use of rapeseed meal is mostly to add rapeseed meal to animal feed according to a certain ratio for animal consumption, but because rapeseed meal contains glucosinolates (glucosinolates) and its degradation products, and plant A large number of anti-nutritional factors such as acid, sinapine, phenolic acid and tannin seriously affect the direct feedability of rapeseed meal, and even affect the palatability and nutritional value of animals

Method used

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  • Rapeseed meal detoxifying treatment method
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  • Rapeseed meal detoxifying treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0015] (1) Take 600g rapeseed meal, add 1.5-3.0% ammonium sulfate and 0.25-0.45% glucose (as nitrogen source and carbon source), mix evenly, then add 825-975mL water and mix evenly to obtain fermented material, pack in 10 On each petri dish, each petri dish is filled with 150g fermented material; (2) inoculate by Aspergillus niger and Saccharomyces cerevisiae at 1:2, the bacterial classification suspension concentration of inoculation is 10 5 —10 8 / mL, the total inoculation amount is controlled within the range of 8%-12%; the pH value is 5.5-7.5, the temperature is controlled at 28-35°C, and the aerobic fermentation is carried out for 24-48 hours. After the fermentation is completed, it is dried and crushed through a 60-mesh sieve to obtain a step Fermented meal. (3) Use one-step fermentation dregs as raw material, add appropriate amount of distilled water according to the solid-liquid ratio of 55% to 65% and mix evenly to obtain the initial material embryo of two-step ferme...

Embodiment 2

[0018] (1) Take 900g of rapeseed meal and add 100g of wheat bran, mix evenly and then add 1500mL of water to mix evenly to obtain the fermented material, which is divided into 25 petri dishes, and each petri dish is filled with 150g of fermented material; (2) press Aspergillus niger Inoculate with brewer's yeast at a ratio of 1:1, and the concentration of the inoculated strain suspension is 10 5 —10 8 / mL, control the total inoculum volume to 10-12%; natural pH, aerobic fermentation at 33-35°C for 24-36h. After the fermentation is completed, it is dried and crushed through a 60-mesh sieve to obtain a one-step fermentation meal. (3) Use one-step fermentation dregs as raw material, add water according to the solid-to-liquid ratio of 60-75%, and mix evenly to obtain the initial material for two-step fermentation; (4) Mix Lactobacillus bulgaricus and Bacillus subtilis at a ratio of 1:1. Inoculation, the inoculated bacterial suspension concentration was 10 5 —10 8 / mL, control ...

Embodiment 3

[0021] (1) Take 600g rapeseed meal, add 1.5-3.0% ammonium sulfate and 0.25-0.45% glucose, mix evenly, then add 900mL water and mix evenly to obtain fermented material, and distribute it on 10 petri dishes, each petri dish contains 150g Fermentation material; (2) Inoculate according to the ratio of Aspergillus niger and Saccharomyces cerevisiae at a ratio of 1:2, and the concentration of the inoculated bacterial suspension is 10 5 —10 8 / mL, control the total inoculum volume to 10-12%; natural pH, aerobic fermentation at 33°C for 24-36h. After the fermentation is completed, it is dried and crushed through a 60-mesh sieve to obtain a one-step fermentation meal. (3) Use one-step fermentation dregs as raw material, add distilled water according to the solid-to-liquid ratio of 60-75%, and mix uniformly to obtain the initial material for two-step fermentation; (4) Use the mixed bacteria of Lactobacillus bulgaricus and Bacillus subtilis according to 1-3: 1 for inoculation, the inoc...

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Abstract

The present invention discloses a rapeseed meal detoxifying treatment method comprising the following steps: raw materials are crushed, the crushed raw materials are subjected to first-step fermentation with aspergillus niger and beer yeast and second-step fermentation with bacillus subtilis and lactobacillus bulgaricus, and the fermented rapeseed meal is subjected to alcohol washing and separation, and the obtained dry material is non-toxic rapeseed meal. The rapeseed meal detoxifying treatment method utilizes a step-by-step method to conduct detoxification, combines with ethanol elution, and finally obtains the non-toxic rapeseed meal which has a minimum content of anti-nutritional factors, is high in crude protein content and rich in prebiotics, and can be used in food and feed.

Description

technical field [0001] The invention relates to the field of detoxification of rapeseed meal, in particular to a non-toxic treatment method of rapeseed meal. Background technique [0002] Rapeseed meal is a by-product of extracting oil from rapeseed by leaching or pre-pressing. It is rich in protein and is one of the main plant protein resources. Among them, it is rich in amino acids, methionine, refined The content of amino acid, leucine and valine is higher (the content of lysine is slightly lower than that of soybean meal, and the rest of the essential amino acids are equivalent to that of soybean meal). In terms of nutritional value, it can be compared with the Food and Agriculture Organization of the United Nations (FRO) and the World Health Organization (WHO) Comparable to recommended model proteins. For a long time, the use of rapeseed meal is mostly to add rapeseed meal to animal feed according to a certain ratio for animal consumption, but because rapeseed meal con...

Claims

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Application Information

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IPC IPC(8): A23K1/14
Inventor 丁之恩方洁徐浩任琪李菁楠杨松周天驹
Owner ANHUI AGRICULTURAL UNIVERSITY
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