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Technology for processing starch by using fresh sweet potatoes

A technology of starch milking and grinding, which is applied in the field of food processing, can solve the problems of general quality and low starch output, and achieve the effect of quality improvement and starch output increase

Inactive Publication Date: 2012-02-15
刘瀚昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Fresh sweet potato processed starch is mostly used in rural manual production, but the traditional processing method does not pay attention to the grasp of each link, resulting in low starch yield and average quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Good results have been achieved through the following work in Jingyuan Food Factory:

[0015] 1. Put the sweet potatoes in the tank in order for cleaning. After cleaning, use a crusher to break them into pieces, the size of which is less than 2 cm.

[0016] 2. Feed the fresh potato pieces into a stone mill or add water to grind into a potato paste. The ratio of the weight of the fresh potato to the amount of water added is 1:3-3.5.

[0017] 3. Put the filtered starch milk into a large tank, and then add physalis and water in proportion to adjust the acidity and concentration of the starch milk.

[0018] 4. After mixing the pulp, let it stand for about 20-30 minutes, and take out the mixture of clear swill water, protein, fiber and a small amount of starch in the upper layer, and the starch left in the bottom layer.

[0019] 5. The starch after skimming the upper layer of physalis is sieved with a fine sieve with a mesh size of 120, and then transferred to a small tank after sieve...

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Abstract

The invention relates to the field of food processing and in particular relates to specific measures for all links from selection of sweet potato raw materials to water-washing, blending to form pulp and raising flour. The processed starch from fresh sweet potatoes is mostly applied to manual production in rural areas, but the traditional processing method does not pay attention to the grasp of all the links, so that the yield of the starch is low and the quality is common. The technology comprises the following steps: firstly selecting the sweet potatoes with high starch content, cleaning, smashing and then grinding into potato paste, wherein, during the process of blending for forming the pulp, the best pH value of acid pulp is 3.6-4.0, and the concentration of starch milk in a large cylinder is 3.5-4.0 Baume degrees; and adding the acid pulp in the amount which is 2% of the starch milk, standing for 20-30 minutes, skimming the upper layer of clear swill, proteins, fiber and a small amount of the starch, adding water into the bottom layer of the starch for mixing, blending to form the starch milk for enabling the starch to precipitate again, further skimming the upper layer of the acid pump, transferring the starch which is screened out into a small cylinder, adding the water for rinsing the starch, raising the flour and air-drying to get the starch.

Description

Technical field [0001] The invention relates to the field of food processing, in particular to specific measures from the selection of sweet potato raw materials to water washing, pulping and flouring. Background technique [0002] Fresh sweet potato processed starch is mostly used in rural manual production, but the traditional processing method does not pay attention to the grasp of each link, resulting in low starch yield and average quality. Summary of the invention [0003] 1. Selection of raw materials: Choose a variety of processed starch, which requires high starch content. Generally, the skin is red and the inside is white sweet potatoes. Diseased sweet potatoes are not suitable for starch processing materials and are prone to rot and cause losses. Reject clean. [0004] 2. Washing with water: Pour the fresh potatoes into the jar with clean water, manually wash them, take them out after washing, and drain the remaining water. [0005] 3. Crushing: The drained fresh potatoes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/04
Inventor 刘瀚昌
Owner 刘瀚昌
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