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Process for extracting sweet potato protein by thermal deposition method

A technology of sweet potato protein and extraction process, which is applied to the preparation method of peptides, chemical instruments and methods, and plant peptides. The effect of mature technology

Active Publication Date: 2012-07-11
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] 1) Using membrane dialysis and ultrafiltration technology to separate and concentrate sweet potato protein, the equipment investment is large, the technical requirements are high, and the cost increases;

Method used

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  • Process for extracting sweet potato protein by thermal deposition method
  • Process for extracting sweet potato protein by thermal deposition method
  • Process for extracting sweet potato protein by thermal deposition method

Examples

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Embodiment Construction

[0043] The present invention is further described below in conjunction with accompanying drawing:

[0044] see Figure 1-5Shown: the cell liquid containing sweet potato protein is first pumped from the buffer tank (1) to the preprocessor (3) by the pump (2), and after most impurities are removed, it enters the disc separator (4) for separation. The function of the separator is to separate the light phase such as protein in the cell fluid from the heavy phase such as starch. Heavy phases such as starch are recovered, merged with refined starch milk and enter the downstream plate and frame filter press for dehydration, and then dried to become commercial starch. The cell fluid containing light phase such as protein separated by disc separator contains most of soluble protein and insoluble protein. The separated protein solution is sent to the steam jet type cell solution heater (7) through the pump (6) in the protein solution tank (5) for denaturation treatment. The principle...

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Abstract

The invention relates to a process for extracting sweet potato protein by a thermal deposition method. The process is characterized by comprising the following steps of: treating cell sap to extract the sweet potato protein from the cell sap while producing sweet potato starch, separating and purifying by using a disc separator according to the difference of specific gravity of the protein and other substances such as starch and the like, removing fine fibers according to the solubility of the protein and the size of particles, and further purifying; purifying, concentrating, and degeneratingthe sweet potato protein to generate floccules according to the characteristic that the protein is degenerated at high temperature by a physical heating method; and concentrating, squeezing for dehydrating, drying, sieving, and performing aftertreatment to obtain a sweet potato protein commodity. The invention has the advantages that: (1) the sweet potato protein is degenerated by a steam jet cell sap heater, a moving part is not provided, and continuous production is ensured; (2) chemicals such as a flocculating agent and the like are not added, so that pollution is avoided, and subsequent treatment difficulty is reduced; and (3) the process is technically mature, and the industrial production capacity can be achieved.

Description

[0001] technical field [0002] The invention belongs to the fields of agricultural product processing and food biotechnology, and specifically relates to a heat-sink extraction process for sweet potato protein, which is suitable for simultaneous extraction of sweet potato protein in potato starch processing or extraction of sweet potato protein from cell fluid. Background technique [0003] my country is the country that grows the most sweet potatoes in the world. In addition to being used for fresh food and processing some sweet potato snacks, some sweet potatoes are used to produce sweet potato starch, vermicelli and vermicelli. Currently, sweet potato protein is often discharged as wastewater during starch processing. This not only seriously pollutes the surrounding environment of the enterprise, but also causes a great waste of resources. Sweet potato protein is the second largest nutrient in sweet potato root except starch, and 80% of sweet potato protein is soluble, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K14/415C07K1/30C08B30/00
Inventor 王彦波
Owner HENAN UNIVERSITY OF TECHNOLOGY
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