Unlock instant, AI-driven research and patent intelligence for your innovation.

Extracting method of lentinan and application of lentinan in preventing and treating crop diseases

An extraction method and a technology for lentinan, applied in the field of lentinan extraction

Inactive Publication Date: 2012-06-27
HEILONGJIANG SUINONG PESTICIDES
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has not been used in the control of crop diseases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Take the culture medium of lentinan, which is composed of 79% sawdust, 20% wheat bran, and 1% gypsum, and the water content is 50-55%. Cultivate at 20-22°C for 60-85 days, the medium is elastic after inoculation and fermentation, the surface of the bacteria block is white, and bark-like tissue begins to form, with a small amount of brown secretions, then crush the material, put it into the reaction kettle, and add the material 5% glucose, 5% xylose, 5% glucoside, 5% galactose and water (the weight ratio of water and bacterial material is 1: 1) by weight; 80°C of reaction temperature, cultivated for 12 hours, separated by centrifuge To obtain the culture solution and residue, take the culture solution and concentrate it to 0.5% in a vacuum thin-film concentrator at 60° C. to obtain the lentinan of the present invention.

[0008] Take 0.5% lentinan concentrate, add its weight ratio of 1% plant growth regulator naphthalene acetic acid, 2% synergist Pingpingjia, and 1% pres...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an extracting method of lentinan from edible mushrooms and application of lentinan in preventing and treating crop diseases. A culture medium of lentinan comprises 79% of bits of wood, 20% of wheat bran and 1% of plaster, and the moisture content is 50-55% . The extracting method comprises the following steps: sterilizing the culture medium at 120 DEG C for 2 hours; inoculating Mushroom strains ST306 in the culture medium and culturing at 20-22 DEG C for 60-85 days; crushing fungus materials; placing the crushed fungus materials into a kettle; based on the weight of the crushed fungus materials, adding 5% of glucose, 5% of xylose, 5% of mannoside, 5% of galactose and a proper amount of water to react at a temperature of 80 DEG C for 12 hours; separating with a centrifugal machine to obtain a nutrient solution and residues; and condensing the culture solution to have the concentration of 0.5% in a vacuum film thickener to obtain the lentinan. The lentinan concentrated solution with the concentration of 0.5% is added with 1% of growing regulator, 2% of a synergistic agent and 1% of a preservative to spray on the crops to prevent and treat the diseases of the crops. The lentinan is a polysaccharide complex extracted from mycelium of edible mushrooms, and a biofungicide especially used for preventing and treating plant viruses and disturbing the synthesis of nucleic acid and enzymic protein of virus and has a unique prevention and treating effect for plant viruses, and is a pure biological non-polluted product.

Description

technical field [0001] The invention relates to a method for extracting lentinan from edible mushrooms and the application of the lentinan in preventing and controlling crop diseases. Background technique [0002] Lentinan, which is mainly used in medicine, is an anti-tumor auxiliary drug with immunoregulatory effects, which can promote the proliferation of T and B lymphocytes and increase the activity of NK cells. At present, it has not been used in the prevention and control of crop diseases. Contents of the invention [0003] The object of the present invention is to provide a method for extracting lentinan and its application in preventing and treating crop diseases. [0004] The technical solution of the present invention is: a method for extracting lentinan, the culture medium of lentinan is composed of 79% of sawdust, 20% of wheat bran, and 1% of gypsum, with a water content of 50-55%, and after sterilization at 120°C for 2 hours , insert the mushroom strain ST306...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C12P19/04A01N43/16A01P1/00C12R1/645
Inventor 李连志郑久德孙连芳
Owner HEILONGJIANG SUINONG PESTICIDES