Compound enzyme preparation for manioc waste industry

Abstract

The invention discloses a compound enzyme preparation for use in cassava residues industry, which is characterized in that: the components in percentage by weight are prepared as follows: 20 to 35 percent of composite cellulase, 12 to 25 percent of pectinase, 5 to 15 percent of prolease, 10 to 15 percent of dextranase, 2 to 4 percent of phytase, 3 to 6 percent of laccase. The compound enzyme preparation for use in cassava residues industry of the invention has the advantages of reducing the water content in cassava residues and the material viscosity, recovering starch in the cassava residuesfor the second time to increase the yield of starch; using the rest dry cassava residues for perfect compound feed; reducing pollution to the ground surface and air caused by the discharged cassava residues, as well as increasing the yield of starch and saving energy and reducing discharge.

Description

technical field [0001] The invention relates to a compound enzyme preparation for cassava dregs (potato dregs) industry technical background [0002] Cassava is the main economic crop in southern my country, distributed in Guangxi, Yunnan, Fujian, Guangdong and other provinces, with an annual output of about 6.15 million tons. Among them, Guangxi is 3.8 million tons, accounting for 61.8% of the total. The annual output of starch in the country is about 330,000 tons, and about 990,000 tons of cassava residues are produced at the same time. 35%-45% of the starch remains in the dry cassava residues. Generally, 0.4-0.6 tons of dry residues can be obtained for every 1 ton of finished starch produced. Potato residues are rich in cellulose, hemicellulose, pectin, starch, protein, amino acid, fat, sugar, various vitamins, inorganic salts and other substances. of excellent raw materials. The moisture content of cassava residues is 85%-95%. Due to the intercellular permeability blo...

AI Technical Summary

Problems solved by technology

The water content of cassava residues is 85%-95%. Due to the blockage of intercellular permeability, the interaction of surface tension and charge, the viscosity of the material increases, and the problem of difficult dehydration of cassava residues has always plagued its comprehensive development and utilization.

In order to seek to improve the drying process of cassava residues, my country's starch production industry has made great efforts in the past ten years, and has tried many methods, such as thermal drying (such as air drying), centrifugal dehydrator, screw press, board Frame filter press, vacuum suction filter and other physical methods, or use mechanical methods to remove part of the water from cassava residues, and then use thermal drying (such as air drying, etc.) to combine mechanical and thermal energy, because the cost is too high Or the harsh application conditions cannot fundamentally solve the problem of cassava residue dehydration

At present, most cassava residues have not been effectively utilized, which not only causes waste but also pollutes the environment, thus becoming the main bottleneck that plagues cassava starch production enterprises

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