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Method for preparing fish fertilizer from straw

A technology of straw and fish fertilizer, which is applied in the field of plant straw treatment and application, can solve the problems of destroying cellulose structure, easily causing safety problems, and high irritation, so as to achieve safe and reliable operation, enhance fish body immunity, and promote growth Effect

Inactive Publication Date: 2017-11-24
ANHUI HUANGHUAI VETERINARY MEDICINE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN 101503865A discloses a method for preparing microcrystalline cellulose from crop stalks, using "nitric acid-enzymatic degumming-dilute alkali-hydrochloric acid secondary acid hydrolysis method" to process crop stalks to prepare microcrystalline cellulose. It can be implemented by pressing down, but the secondary acid hydrolysis destroys the structure of cellulose to a large extent, and the yield is only about 20%.
Chinese patent CN103397554B discloses a new process for preparing lignocellulosic biomass microcrystalline cellulose, using SO 3 Synergy NH 3 For pretreatment of lignocellulosic biomass, the reaction conditions are mild, but the gas SO 3 Strong irritation, improper operation may cause safety problems

Method used

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  • Method for preparing fish fertilizer from straw

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Embodiment 1

[0024] A method for preparing fish fertilizer from stalks, comprising the following steps:

[0025] (1) Preparation of microcrystalline cellulose: submerge pulverized 100g rice straw in 300ml 0.5mol L -1 100ml of 0.05mol·L -1 ammonium chloride solution, transferred to a microwave reactor to react for 10min, filtered to take the filter cake, passed ammonia gas into the wet filter cake under airtight conditions while it was hot, reacted at 60°C for 1.5h, and then added 300ml of 0.5mol L -1 NaOH solution, continue to react for 6h, filter, wash the filter cake with water until the pH value is 7, add the crude enzyme obtained by the solid-state mixed fermentation of Aspergillus nigerA3 and Trichoderma sp.T6, that is, cellulose and xylan mixed enzyme, After treatment at 60°C for 16 hours, add activated carbon, filter, wash the filter cake with water until the pH value is 7, and dry to obtain 20.0 g of microcrystalline cellulose, a white powder;

[0026] (2) Preparation of reducing...

Embodiment 2

[0031] A method for preparing fish fertilizer from stalks, comprising the following steps:

[0032] (1) Preparation of microcrystalline cellulose: immerse the mixed straw of 50g corn stalks and 50g rice straw in 300ml0.5mol L -1 100ml of 0.05mol·L -1 ammonium chloride solution, transferred to a microwave reactor to react for 10min, filtered to take the filter cake, passed ammonia gas into the wet filter cake under airtight conditions while it was hot, reacted at 60°C for 1.0h, and then added 300ml of 0.5mol·L -1 NaOH solution, continue to react for 6h, filter, wash the filter cake with water until the pH value is 7, add the crude enzyme that is the mixed enzyme of cellulose and xylan produced by solid-state mixed fermentation of Aspergillus niger A3 and Trichoderma sp.T6 , after treatment at 60°C for 16 hours, add activated carbon, filter, wash the filter cake with water until the pH value is 7, and dry to obtain 21.2 g of microcrystalline cellulose, a white powder;

[0033]...

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Abstract

The invention relates to the fields of processing and application of plant straws, in particular to a method for preparing a fish fertilizer from the straw. The method for preparing the fish fertilizer from the straw mainly comprises five main steps of preparing microcrystalline cellulose, preparing a reducing sugar, preparing an inner coating particle, preparing a coating solution, and preparing the fish fertilizer. Different methods are used to process the straw, the reducing sugar obtained by processing the straw is used to form a formula of the fish fertilizer, the microcrystalline cellulose obtained by processing the straw forms a coating to prolong the effect of the fish fertilizer, the utilization ratio of the straw is greatly increased, the reaction condition is mild, and the operation is safe and reliable. In the provided formula of the fish fertilizer, the reducing sugar and cordate houttuynia and astragalus membranaceus improve the nonspecific immunological competence of a crucian, the immunity of the fish is strengthened, the growth of the fish is promoted, and the problems that the feed relies on the imported fish meal and the fish suffers from the disease easily in the traditional fish culture are solved.

Description

technical field [0001] The invention relates to the field of plant straw treatment and application, in particular to a method for preparing fish fertilizer from straw. Background technique [0002] Straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, and is a multi-purpose renewable biological resource. Since lignocellulose (cellulose, hemicellulose, and lignin) in straw has a complex cross-linked structure, which largely limits the application of straw resources in microcrystalline cellulose as a pharmaceutical excipient, it must first be processed effectively High-performance microcrystalline cellulose can be prepared by destroying the cross-linked structure between cellulose, hemicellulose and lignin through advanced pretreatment technology. Chinese patent CN 101503865A discloses a method for preparing microcrystalline cellulose from crop stalks, using "nitric acid-enzymatic degumming-dilute alkali-hydrochloric acid secondary acid hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/30A23K10/37A23K20/142A23K20/163A23K20/174A23K20/189A23K20/22A23K20/24A23K20/26A23K50/80
CPCA23K10/30A23K10/37A23K20/142A23K20/163A23K20/174A23K20/189A23K20/22A23K20/24A23K20/26A23K50/80Y02A40/818Y02P60/87
Inventor 朱伟朱蓓张琛
Owner ANHUI HUANGHUAI VETERINARY MEDICINE
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