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Method for producing mucus protein of sweet potato from wastewater of sweet potato f

A technology of mucus protein and sweet potato, which is applied to the preparation method of peptides, chemical instruments and methods, multi-stage water/sewage treatment, etc., can solve the problems of preparing sweet potato mucus protein, achieve strong heat sensitivity, high-efficiency transformation and utilization, and reduce environmental pollution Effect

Inactive Publication Date: 2007-02-21
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the preparation of sweet potato mucin from the wastewater of sweet potato starch processing at home and abroad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] From the drainage outlet of the starch sedimentation tank of the processing sweet potato starch workshop, respectively take by weighing 10kg of sweet potato wastewater that is being discharged in 5 levels such as upper, middle and lower, and use after the 50kg sweet potato wastewater that is obtained is mixed as an embodiment of the present invention. Get wherein 10kg sweet potato waste water, under normal temperature, carry out rough filtration with vacuum filtration device, filter material is 120 order nylon filter cloths, and vacuum degree is 65kPa. The filter cake was collected once, and the filtrate was microfiltered again. The microfiltration material was a 0.45um microporous fiber filter membrane, and the vacuum was 70kPa. The second filter cake was collected and combined to obtain 303.9g of sticky sweet potato mucin. Freeze-dry the filter cake in a freeze dryer, the freezing temperature is -40℃~-30℃, the drying temperature is -30℃~40℃, the vacuum degree is 10~100...

Embodiment 2

[0012] Get sweet potato waste water 10kg with embodiment 1, carry out coarse filtration and microfiltration according to embodiment 1, obtain sticky sweet potato mucin 299.4g. The filter cake was dried under reduced pressure in a vacuum drying oven, the vacuum degree was 88-91kPa, the drying temperature was 48°C, and the drying time was 5h to obtain 66.2g of flaked sweet potato mucin, which was crushed and sieved according to Example 1 to obtain Light gray sweet potato mucus protein powder 66.2g. After analysis, the protein content of the mucus protein powder is 42.2%.

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PUM

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Abstract

This invention discloses a method for preparing Ipomoea batatas mucilage proteins from Ipomoea batatas starch wastewater. The method comprises: filtering Ipomoea batatas starch wastewater coarsely at normal temperature, micro-filtering by membrane separation in vacuum, incorporating the above two filter cakes, freeze-drying or vacuum-drying, and pulverizing to obtain powdery Ipomoea batatas mucilage proteins. The method has such advantages as comprehensive utilization of Ipomoea batatas starch wastewater, reduced environmental pollution, high profit, advanced technique, high efficiency and retained activity of Ipomoea batatas mucilage proteins.

Description

technical field [0001] The invention relates to a method for preparing sweet potato mucus protein from sweet potato wastewater. Background technique [0002] Many domestic enterprises that produce sweet potato starch discharge a large amount of sweet potato wastewater when processing starch. According to investigations, an enterprise with an annual output of only 1,000 tons of sweet potato starch discharges more than 20,000 tons of sweet potato wastewater every year, of which more than 100 tons of sweet potato mucus protein is discarded. It not only wastes protein resources, but also pollutes the environment. Sweet potato mucus protein is a mixture of polysaccharides and proteins. It has high nutritional value and special functional activity. It can restore damaged immune mechanisms, improve human immunity, and has anti-tumor, anti-virus and anti-aging effects. Maintain the elasticity of human blood vessel walls, inhibit lipid deposition and atherosc...

Claims

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Application Information

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IPC IPC(8): C07K2/00C07K1/14C02F9/02
Inventor 曹凯光张宁潜学基刘文明刘洪石秋杰潜勤
Owner NANCHANG UNIV
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