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Green and clean production method for separating protein from starch in peas

A clean production, protein technology, applied in the preparation methods of peptides, chemical instruments and methods, organic chemistry, etc., can solve problems such as loss, environmental pollution, reduction of protein nutritional value, etc., to achieve the effect of improving product quality

Pending Publication Date: 2021-06-08
钱刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] ①Using strong alkali to dissolve will produce toxin lysine complex (lysylalanine), which has been proved by animal experiments to damage kidney organs and reduce the nutritional value of protein, so it is not suitable as a food-grade product
[0007] ② Physalis or acid-base neutralization produces a large amount of industrial wastewater and pollutes the environment
[0008] ③ Alkali can produce side reactions, so that non-protein components (some carbohydrates) and protein dissolve together, and co-precipitate, reducing product quality and yield
[0009] ④ The isoelectric point of pea protein is PH4.4-4.6, but it cannot be completely precipitated, with a loss of 15-20%

Method used

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Examples

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Embodiment Construction

[0015] Take 100kg of peas, remove impurities, winnow, crush with a pin mill, sieve through a 60-mesh filter to remove coarse fibers, soak in clean water for 6 hours, pour into a high-pressure homogenizer, adjust the pressure to refine the particle size to less than 5 μm, and separate with a cyclone separator , the light phase is sent to the storage tank for washing with hot water, and the oil layer is separated. The aqueous solution is passed through a membrane separator to remove soluble carbohydrates and small molecular peptides, dehydrated, and spray-dried to obtain the finished product of pea protein powder. The heavy phase is finely filtered through 120 meshes to remove dietary cellulose, and the filtered suspension is dried to obtain pea starch.

[0016] The above-mentioned physical method is used to simultaneously obtain two products of protein powder and starch, without acid-base neutralization of waste water, and is an environmentally friendly, green and clean producti...

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Abstract

The invention relates to a method for separating pea protein and starch, and the method comprises the following steps: adopting a pure physical method, performing crushing, performing homogenizing and refining, performing collapsing a net structure, free protein and starch, and then carrying out centrifugal separation according to different specific gravities to obtain protein and starch. The method is a clean process without acid-base neutralization of three wastes.

Description

[0001] 1. Technical field [0002] The invention discloses a production method for separating protein and starch in pea by a physical method, is a green and clean technology without pollution to the environment, and belongs to the technical field of deep processing of agricultural products. [0003] 2. Background technology [0004] Pea is a large-scale bean agricultural product with an annual global output of more than 10 million tons. Compound feed is mainly produced in Europe and North America, and processed and eaten in Asian and South American countries. my country is the main production area and is rich in resources. [0005] Pea contains about 25% protein and 55% starch, which is an important raw material for the production of vermicelli. However, because it contains more than 10% dietary cellulose, it forms a network structure with insoluble protein, and contains starch. It is difficult to separate it by ordinary water grinding. There are the following problems in separ...

Claims

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Application Information

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IPC IPC(8): C08B30/04C08B30/02C07K1/14
CPCC07K1/145C08B30/02C08B30/04
Inventor 钱刚
Owner 钱刚
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