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Sweet potato starch processing process

A processing technology and technology of sweet potato starch, applied in the field of processing technology of sweet potato starch, can solve the problems of difficult sieving and white separation, lowering the pH value of the suspension, lowering the quality of starch, etc. Subtle effect

Inactive Publication Date: 2013-04-10
赵鲲鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phenol oxidase reacts with phenolic substances to form melanin after fresh potatoes are broken; Starch is sugar, which affects the yield of starch, and the sugar will be fermented when the conditions are suitable, reducing the pH value of the suspension. When the pH value reaches the isoelectric point of the water-soluble protein, the water-soluble protein will be precipitated and become a dark green insoluble slurry. on the surface of starch, reducing the quality of starch

Method used

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Experimental program
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Embodiment Construction

[0017] Processing step of the present invention is:

[0018] 1. Selection of fresh sweet potatoes

[0019] Sweet potatoes with white and light yellow flesh should be selected, the starch is powdery starch with high content, and the content of soluble sugar, protein, fiber and polyphenols is low; soil clods, low impurity content, smooth surface, and no insects should be selected. 1. Fresh sweet potatoes with no disease spots, no waterlogging and freezing damage; choose sweet potatoes with less water on the cross-section, more milk and sweat, and firm flesh;

[0020] 2. Washing, crushing, and cell separation;

[0021] 3. Fiber washing and separation

[0022] The crushed slurry contains starch, protein, fiber, etc., and the fiber must be removed first to remove the slurry of the cell fluid; it is pumped to a three-stage pressure curved sieve, vertical centrifugal cone sieve washing system, and the fiber is separated by countercurrent washing out; the material flows on the siev...

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PUM

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Abstract

The invention discloses a sweet potato starch processing process, and relates to the starch processing process, more specifically relates to the sweet potato starch processing process. The invention provides a sweet potato starch processing process which is excellent in quality and high in yield. The technical scheme of the invention is as follows: the process comprises the following steps of selecting fresh sweet potatoes, cleaning, crushing, cell separation, fiber washing, separation, starch refining, starch drying and cooling.

Description

Technical field: [0001] The present invention relates to the processing technology of starch, more specifically, relates to the processing technology of sweet potato starch. Background technique: [0002] Sweet potatoes belong to the Convolvulaceae family and contain a large amount of starch in their roots. Sweet potato, also known as sweet potato (taro), white potato (taro), sweet potato, sweet potato, sweet potato, etc., is a high-yield and stable crop. Except for the Qinghai-Tibet Plateau, it is planted all over the country, especially in the Huangzhun Plain, Sichuan and the hilly areas of the southeastern coastal provinces. The total output of sweet potatoes in my country is about 150 million tons, accounting for 80% of the world's total, ranking first, and has an important position in my country's traditional agricultural production. [0003] Sweet potatoes contain 60% to 80% water, 10% to 30% starch, about 5% sugar, and a small amount of protein, oil, cellulose, hemi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/04
Inventor 赵鲲鹏
Owner 赵鲲鹏
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