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Method for preparing hemicellulose, humate and feed additive by utilizing straws

A feed additive and humate technology, applied in animal feed, animal feed, applications, etc., to achieve the effect of solving the problem of straw utilization, strong practicability, and significant benefits

Active Publication Date: 2014-12-24
JIAHE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant report on the industrialization of hemicellulose extracted from straw. Therefore, the development of the production process of straw hemicellulose can promote the utilization of straw resources in my country and the source of raw materials for hemicellulose production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for preparing hemicellulose, humate and feed additives from stalks, using corn stalks as raw materials, comprising the following steps:

[0017] (1) Raw material pretreatment: corn stalks are processed by kneading machine until the length is 3cm, and water is added to moisten the straw filaments according to the ratio of 0.8:10;

[0018] (2) Biological fermentation: keep the humidity of the straw at 85%, add 0.5% of Aspergillus niger, Penicillium, white rot fungi or yeast, stack and ferment for 10 days, press filter the straw, and collect the fermented black liquor;

[0019] (3) Hemifiber extraction: add KOH solution or NaOH solution to the solid matter obtained in step (2), so that the alkali concentration is 6% of the absolute dry matter, stir for 7 hours at 60°C, and let stand until solid-liquid separation, Collect the supernatant containing hemicellulose, adjust its pH to 7, and concentrate to 1 / 10 of the original volume;

[0020] (4) Feed addi...

Embodiment 2

[0025] A method for preparing hemicellulose, humate and feed additives from stalks, using corn stalks as raw materials, comprising the following steps:

[0026] (1) Raw material pretreatment: the crop stalks are processed by a kneading machine until the length is 4cm, and water is added to moisten the stalk filaments at a ratio of 0.5:8;

[0027] (2) Biological fermentation: keep the humidity of the straw at 70%, add 2% of Aspergillus niger, Penicillium, white rot fungi or yeast, stack and ferment for 5 days, press filter the straw, and collect the fermented black liquor;

[0028] (3) Semi-fiber extraction: add KOH solution or NaOH solution to the solid obtained in step (2), so that the alkali concentration is 10% of the absolute dry matter, stir for 2 hours at 50°C, and let stand until solid-liquid separation, Collect the supernatant containing hemicellulose, adjust its pH to 7, and concentrate to 1 / 10 of the original volume;

[0029] (4) Feed additive extraction: ad...

Embodiment 3

[0034] A method for preparing hemicellulose, humate and feed additives from stalks, using corn stalks as raw materials, comprising the following steps:

[0035] (1) Raw material pretreatment: the crop stalks are processed by a kneading machine until the length is 5cm, and water is added to moisten the stalk filaments at a ratio of 0.9:10;

[0036] (2) Biological fermentation: keep the humidity of the straw at 95%, add 5% of Aspergillus niger, Penicillium, white rot fungi or yeast, stack and ferment for 2 days, press filter the straw, and collect the fermented black liquor;

[0037] (3) Semi-fiber extraction: add KOH solution or NaOH solution to the solid obtained in step (2), so that the alkali concentration is 5% of the absolute dry matter, stir for 7 hours at 80°C, and leave it to stand until solid-liquid separation, Collect the supernatant containing hemicellulose, adjust its pH to 7, and concentrate to 1 / 10 of the original volume;

[0038] (4) Feed additive ex...

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Abstract

The invention provides a method for preparing hemicellulose, humate and a feed additive by utilizing straws, and belongs to the technical field of integrated utilization of subsidiary agricultural products. The method provided by the invention is a method by which a hemicellulose stock solution, the humate and the feed additive are obtained through microbial fermentation treatment and alkaline hydrolysis by taking the straws as a raw material and mainly comprises the following steps of crushing the straws, and degrading a wax positioned on the surface of the straws through a microbial fermentation treatment method; carrying out pressure filtration, adding alkali liquor to a solid, treating by adopting a heating extraction method to obtain a hemicellulose supernatant; adding the alkali liquor to the rest solid, digesting, and then carrying out pressure filtration to obtain the solid which is the feed additive; concentrating and filtering filter liquor which is rich in humate to obtain a humate solid. According to the invention, the consumption of the total weight of process chemicals is reduced by combining a biological fermentation method and a chemical treatment method. The production process is simple and high in applicability, enhances the economic added value of the crop straw and preferably solves the problem of straw utilization.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of agricultural and sideline products, and relates to a method for preparing hemicellulose, humate and feed additives from straw. Background technique [0002] China is a large agricultural country. In recent years, the annual output of crop straw has exceeded 800 million tons. The crop straw contains cellulose, hemicellulose, lignin and other components, all of which have good economic value. [0003] Lignin undergoes complex chemical changes in lye cooking to produce biochemical humate, which has great applications in various fields such as: it can be used as fertilizer and plant growth stimulant in agriculture, which can stimulate the growth and development of crops and help Absorption of nutrient elements, improvement of soil structure, improvement of crop drought resistance, and activation of nitrogen-fixing bacteria; industrially used to increase yeast capacity, increase et...

Claims

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Application Information

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IPC IPC(8): C08B37/14A23K1/14C08H99/00C07G99/00
Inventor 董桂秀梁爱新周述慧范自龙杨海征
Owner JIAHE BIOTECH
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