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Aspergillus niger pellets

A fermentation technology of Aspergillus niger and Aspergillus niger, which is applied in the direction of fungicides, biocides, botanical equipment and methods, etc. It can solve the problems of bacteria pollution, biocontrol effect and unknown plant growth, liquid properties that are not suitable for mass storage and Transportation and other issues, to achieve the effect of simplifying the production process, convenient control and management, and reducing the production process

Active Publication Date: 2016-02-24
毕节市家乡美农业综合开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although Aspergillus niger fermentation broth has good antibacterial activity, it is not suitable for large-scale storage and transportation due to the nature of the liquid. If it is not properly preserved during long-term storage, it will be contaminated by miscellaneous bacteria, which will cause unknown harm to the biocontrol effect and plant growth. Therefore, we Further processing and optimization of Aspergillus niger fermentation broth products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Preparation of slow-release pellets

[0028] Preparation of Aspergillus niger fermentation concentrate crude extract powder:

[0029] A. Take the sterilized fermentation broth, filter it, concentrate it to a relative density of 1.12 (25°C), and spray dry it under the following drying conditions: air inlet temperature 150°C; exhaust temperature 95°C; flow rate 20mL / s.

[0030] The Aspergillus niger fermentation broth is concentrated and dried by spray drying at an inlet air temperature of 150°C, an exhaust temperature of 95°C, and a flow rate of 20mL / s. The air is filtered and heated, and enters the air distributor at the top of the dryer. Spiral evenly into the drying chamber. The feed liquid passes through the high-speed centrifugal atomizer on the top of the tower, (rotating) and sprays into very fine mist droplets, which can be dried into finished products in a very short time in contact with hot air. The product has good uniformity, fluidity and solu...

Embodiment 2

[0039] Embodiment 2: Preparation of slow-release pellets

[0040] Prepare according to the same method as in Example 1, except that the following components by weight are used:

[0041]

[0042] Sieve and mix well, use an appropriate amount of 30% ethanol aqueous solution as a binder to granulate to obtain a wet material with moderate humidity, and dry it.

Embodiment 3

[0043] Embodiment 3: Preparation of slow-release pellets

[0044] Prepare according to the same method as in Example 1, except that the following components by weight are used:

[0045]

[0046] Sieve and mix well, use an appropriate amount of 30% ethanol aqueous solution as a binder to granulate to obtain a wet material with moderate humidity, and dry it.

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Abstract

The invention relates to Aspergillus niger pellets which are used for preventing and treating konjac southern blight and soft rot. Aspergillus niger xj is separated by fungal resource institute of Guizhou university, is collected in CCTCC (China Center for Type Culture Collection) (address: Wuhan University, Wuhan, China) at present and has the collection number CCTCCNO of M206021. The Aspergillus niger pellets contain Aspergillus niger fermented concentrate crude extract powder, microcrystalline cellulose (MCC), lactose and hydroxypropyl methylcellulose and can be used for preventing and treating konjac southern blight and soft rot.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to Aspergillus nigerxj pellets and a preparation method thereof. Background technique [0002] Aspergillus niger, Deuteromycotina, Hyphomycetes, Hyphospora, Polygonaceae, a common species in the genus Aspergillus. Widely distributed in food, plant products and soils all over the world. It is an important fermentation industry strain, which can produce amylase, acid protease, cellulase, pectinase, glucose oxidase, citric acid, gluconic acid and gallic acid, etc. The present application utilizes the secondary metabolites produced by Aspergillus niger during the growth process to inhibit the mildew and soft rot bacteria. Sclerotinia, also known as sclerotinia root rot and sclerotinia seedling blight, harms the rhizomes of seedlings and young trees. The disease can harm a variety of plants, mainly damaging various tree species such as camellia oleifera, tung tree, catalpa, citrus, apple,...

Claims

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Application Information

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IPC IPC(8): A01N25/28A01N63/04A01P3/00
CPCA01N25/28A01N63/30
Inventor 李祝肖洋李玉环丛铭郭博恺万科
Owner 毕节市家乡美农业综合开发有限公司
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