Method for extracting multiple functional components from wheat starch processing wastewater

A technology for processing waste water and wheat starch, which is applied to peptide preparation methods, chemical instruments and methods, water/sewage multi-stage treatment, etc. It can solve the problems that economic, social and ecological benefits are not fully reflected

Active Publication Date: 2014-03-05
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overall, the economic, social and ecological benefits of this part of by-product resources have not been fully reflected

Method used

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  • Method for extracting multiple functional components from wheat starch processing wastewater
  • Method for extracting multiple functional components from wheat starch processing wastewater
  • Method for extracting multiple functional components from wheat starch processing wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1. Co-extracting various functional components from wheat starch processing wastewater

[0026] 1. Extraction process

[0027] 1) Starch recovery

[0028] Take 1000mL of wheat starch processing wastewater and centrifuge it in a desktop centrifuge with a centrifugal force of 3500g and a centrifugation time of 25min. Collect the centrifuged precipitate and supernatant respectively, and dry the precipitate by vacuum drying to obtain a starch product.

[0029] 2) Phytic acid extraction

[0030] Use 1.5M potassium hydroxide (KOH) to adjust and remove starch centrifugation supernatant to pH 7.5; let it settle for 1.5h; use a desktop centrifuge for centrifugation with a centrifugal force of 4000g and a centrifugation time of 35min; collect the centrifugal sediment and supernatant respectively, and precipitate Vacuum drying is adopted to obtain the phytic acid product.

[0031] 3) Protein extraction

[0032] In the centrifugation supernatant of phytic acid, add comp...

Embodiment 2

[0047] Example 2 Co-extraction of multiple functional components from wheat starch processing wastewater

[0048] 1. Extraction process

[0049] 1) Starch recovery

[0050] Take 10L of wheat starch processing wastewater and centrifuge with a three-legged centrifuge with a centrifugal force of 5000g and a centrifugation time of 20min to collect the centrifugal precipitate and supernatant respectively, and vacuum dry the precipitate to obtain a starch product.

[0051] 2) Phytic acid extraction

[0052] Use 1.0M Potassium Hydroxide (KOH) to adjust and remove the starch centrifugation supernatant to pH 7.0; let it settle for 1.0h; use a three-legged centrifuge for centrifugation with a centrifugal force of 6000g and a centrifugation time of 25min; collect the centrifugal sediment and supernatant respectively, The precipitate is dried by vacuum drying method to obtain phytic acid product.

[0053] 3) Protein extraction

[0054] In the centrifugation supernatant of phytic acid,...

Embodiment 3

[0069] Example 3 Co-extraction of multiple functional components from wheat starch processing wastewater

[0070] 1. Extraction process

[0071] 1) Starch recovery

[0072] Take 100L of wheat starch processing wastewater and centrifuge in a three-legged centrifuge with a centrifugal force of 4000g and a centrifugation time of 15min to collect the centrifuged precipitate and supernatant respectively, and vacuum dry the precipitate to obtain a starch product.

[0073] 2) Phytic acid extraction

[0074] Use 1.5M Potassium Hydroxide (KOH) to adjust and remove the starch centrifugation supernatant to pH 7.3; let it settle for 2.0h; use a three-legged centrifuge for centrifugation with a centrifugal force of 5000g and a centrifugation time of 30min; collect the centrifugal sediment and supernatant respectively, The precipitate is dried by vacuum drying method to obtain phytic acid product.

[0075] 3) Protein extraction

[0076] In the centrifugation supernatant of phytic acid, ...

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Abstract

The invention discloses a technical method for co-extracting multiple functional components such as protein, phytic acid, araboxylan and the like from wheat starch processing wastewater. The extraction method mainly comprises the following steps of firstly removing insoluble starch particles by a centrifugal process; adjusting the pH value and adding a flocculant to sequentially remove phytic acid and protein; centrifuging the supernate and performing concentration and alcohol precipitation to obtain araboxylan. In the invention, by use of a great quantity of byproduct resources, namely wheat starch wastewater, a method for step extraction to realize comprehensive utilization of the wheat starch wastewater is designed. By popularizing and applying the technology, the environmental protection pressure on an enterprise can be reduced, and higher economic benefits also can be obtained possibly through the extraction of high-value added functional components.

Description

technical field [0001] The invention relates to a green and environment-friendly extraction method for graded extraction of protein, phytic acid, arabinoxylan and other functional components from industrial waste water of processing wheat starch. Background technique [0002] Wheat is a staple food crop in my country. In addition to being converted into flour and flour products in large quantities, more and more wheat is currently used for deep processing and transformation. The most typical application is to produce wheat starch and gluten (wheat gluten). Wheat starch can be further used as intermediate raw material for food processing or biological fermentation raw material; gluten powder can be used as flour gluten enhancer, protein nutrition enhancer or high-grade animal feed, thus broadening the wheat processing industry chain and improving the economic benefits of enterprises. Therefore, in recent years, In my country's main wheat-producing provinces and regions, wheat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C07K1/32C07F9/117C08B30/04C08B37/14
Inventor 周素梅钟葵佟立涛刘丽娅周闲容赵梦丽
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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