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Compound enzyme for potato starch processing and application of compound enzyme

A potato starch and compound enzyme technology, applied in the direction of enzymes, lyases, hydrolytic enzymes, etc., can solve the problems of low separation efficiency, high content of starch impurities, and low quality, and achieve improved separation efficiency, simple operation, and reduced water ratio. Effect

Pending Publication Date: 2021-02-02
湖南夏盛酶技术有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to 20% to 25% of starch, potatoes also contain about 3% of protein, especially the existence of tuber cortex and fiber substances, resulting in low separation efficiency and easy to make potato starch with more impurities and lower quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Compound enzyme preparation

[0025] Weigh 50 kg of cellulase, 10 kg of xylanase, 5 kg of pectin lyase, 10 kg of cellobiase and 1 kg of mannanase, mix well and set aside.

[0026] (2) Preparation of potato starch

[0027] (1) adjust the pH value of the potato paste to be 5 to obtain pretreated potato paste;

[0028] (2) Adding a compound enzyme with a mass concentration of 0.02% to the pretreated potato paste, mixing and homogenizing;

[0029] (3) Enzymolysis at 50°C for 60 minutes;

[0030] (4) Separation by plate and frame, stirring, mixing and washing according to the solid-to-liquid ratio of 1:10, repeated washing for 3 times, and then filtering through the plate and frame, drying the solid powder in an air dryer to obtain potato starch.

Embodiment 2

[0032] (1) Compound enzyme preparation

[0033] Weigh 55 kg of cellulase, 15 kg of xylanase, 10 kg of pectin lyase, 15 kg of cellobiase and 5 kg of mannanase, mix well and set aside.

[0034] (2) Preparation of potato starch

[0035] (1) adjusting the pH value of the potato paste to 4.5 to obtain pretreated potato paste;

[0036] (2) Adding a compound enzyme with a mass concentration of 0.03% to the pretreated potato paste, mixing and homogenizing;

[0037] (3) Enzymolysis at 40°C for 60 minutes;

[0038] (4) Separation by plate and frame, stirring, mixing and washing according to the solid-to-liquid ratio of 1:10, repeated washing for 3 times, and then filtering through the plate and frame, drying the solid powder in an air dryer to obtain potato starch.

Embodiment 3

[0040] (1) Compound enzyme preparation

[0041] Weigh 52kg of cellulase, 15kg of xylanase, 8kg of pectin lyase, 12kg of cellobiase and 3kg of mannanase, mix well and set aside.

[0042] (2) Preparation of potato starch

[0043] (1) adjusting the pH value of the potato paste to 5.5 to obtain pretreated potato paste;

[0044] (2) Adding a compound enzyme with a mass concentration of 0.02% to the pretreated potato paste, mixing and homogenizing;

[0045] (3) Enzymolysis at 60°C for 60 minutes;

[0046] (4) Separation by plate and frame, stirring, mixing and washing according to the solid-to-liquid ratio of 1:10, repeated washing for 3 times, and then filtering through the plate and frame, drying the solid powder in an air dryer to obtain potato starch.

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Abstract

The invention discloses a compound enzyme for potato starch processing and application of the compound enzyme. The invention belongs to the technical field of bio-enzyme preparations. The compound enzyme is prepared from the following components in parts by mass of 50 to 55 parts of cellulase, 10 to 15 parts of xylanase, 5 to 10 parts of pectinase, 10 to 15 parts of cellobiase and 1 to 5 parts ofmannase. Compared with the prior art, the compound enzyme has the beneficial effects that the operation is simple, special equipment is not used, and other pollutants are not introduced. Due to the use of the compound enzyme, the viscosity of paste is quickly and effectively reduced, and the separation efficiency of the potato paste starch milk and the potato residues is improved, so that the yield of the potato starch can be improved. In addition, the equipment utilization rate is improved by shortening the production and processing period. As the viscosity of the potato paste is effectivelyreduced, the water distribution ratio can be reduced, the water consumption of the system is greatly reduced, the environmental pollution is reduced, and the energy consumption of water, electricity,natural gas and the like is saved.

Description

technical field [0001] The invention relates to the technical field of biological enzyme preparations, in particular to a composite enzyme for potato starch processing and its application. Background technique [0002] Potato is an important economic crop. The starch per unit area can be obtained 2-4 times higher than that of gramineous crops, so it is an important raw material for the production of starch and other products. my country is the world's largest potato producer, with abundant potato resources and a wide and relatively concentrated planting area, which is very suitable for industrialized starch production. Potato starch has excellent performance, wide application, and great development value. The development of potato starch processing industry has positive significance for adjusting the agricultural industrial structure, developing regional economy and driving the development of planting industry. [0003] The chemical components of potatoes mainly include wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N9/42C12N9/18C12N9/24C12N9/80C08B30/04
CPCC12N9/2437C12N9/248C12N9/2488C12N9/18C12N9/2402C12N9/80C08B30/048C12Y302/01091C12Y301/01011C12Y302/01015C12Y402/02002
Inventor 赵迎春沈涛程伟杜新园
Owner 湖南夏盛酶技术有限公司
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