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Process for preparing low phytic acid rapeseed protein concentrate by using water and ethanol

A technology of rapeseed protein concentrate and phytic acid, which is applied to the protein composition, protein food composition, and application of vegetable seeds, can solve the problems of waste water discharge, high protein loss rate, and difficulty in industrialized production, so as to avoid pollution and recover. handy effect

Inactive Publication Date: 2006-09-27
WUHAN POLYTECHNIC UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent has the disadvantages of high protein loss rate, large amount of waste water discharge, easy to cause environmental pollution, etc., and it is difficult to further industrialize production

Method used

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  • Process for preparing low phytic acid rapeseed protein concentrate by using water and ethanol

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Effect test

Embodiment 1

[0013] see figure 1 , a method for preparing low-phytic acid rapeseed protein concentrate by using water and ethanol, the specific process is: after cleaning the "double-low" rapeseed or common rapeseed, drying to 10% moisture, controlling the drying temperature of the material temperature at 40°C to prevent protein denaturation, and then use a rapeseed peeling and kernel skin separator for peeling, the peeling rate is 90%, and the seed coat can be used as cattle feed or comprehensive utilization; the peeled rapeseed kernels are steamed and fried after rolling embryos Mature embryos (pressed at low temperature or pre-pressed by steaming and frying), pre-pressed oil with a screw press, (tissue reforming treatment, hexane leaching, leaching crude oil) pre-pressed cakes are leached and desolvated to make rapeseed dehulled and defatted meal , crushed to 50 mesh, first washed with dilute acid water with a pH value of 5.0 to remove phytic acid, stirred and washed at 25°C, controlled...

Embodiment 2

[0017] A method for preparing concentrated low-phytic acid rapeseed protein by using water and ethanol. After cleaning the "double-low" rapeseed or ordinary rapeseed raw materials, dry them until the moisture content is 6%, and control the drying temperature of the materials at 60°C to prevent The protein is denatured, and then peeled with a rapeseed peeling and kernel skin separator. The peeling rate is 96%. After the peeled rapeseed kernels are rolled, the raw embryos are pressed with a low-temperature screw oil press to extract oil, and the cake is reorganized Treatment (including particle size adjustment, texturization, or granulation), followed by leaching to oil production, and after low-temperature precipitation at 60°C, rapeseed dehulled and degreased meal was obtained, crushed to 100 mesh, and firstly measured with a pH value of Wash with 5.0 dilute acid water to remove phytic acid, stir and wash at 55°C, control the liquid-solid ratio to 5:1, wash for 0.5 hours each t...

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Abstract

The invention discloses a water and alcohol preparing low phytic acid vegetable seed compression protein method, which is characterized by the following: using vegetable seed for raw material; treating by decortication preparing oil of decortication low-temperature preparing oil; getting vegetable seed derosination plup powder; putting vegetable seed derosination plup powder in washer; washing by diluted acid water with pH=5 to dislodge phytic acid; stiring at 25-55deg.c; washing vegetable seed derosination plup powder mang times( every time is for 0.5-2 hours); controlling the ratio of liquid and solid from 5:1 to 10:1; getting cleaning mixture A and solid B after centrifugal separation; collecting solid B; scouring the liquid with 50%-95% alcohol; stiring and scrubing at 40-70 deg.c; washing the solid B for many times; controlling the ratio of liquid and solid from 5:1 to 10:1; getting cleaning mixture C and solid D after centrifugal separation; getting low phytic acid vegetable seed compression protein after vacuum drying by dried.

Description

technical field [0001] The invention relates to a method for preparing concentrated protein from rapeseed with low phytic acid. The method utilizes the characteristics that harmful substances phytic acid and glucosinolate in rapeseed can be dissolved in water, and other impurities can be dissolved in alcohol substances to prepare low-phytic acid protein Canola protein concentrate. technical background [0002] Rapeseed is an important oil resource in my country, which contains 25-27% protein, and the protein content in the dehulled and degreased meal can reach 40-48%. The dehulled and degreased meal is used as raw material to prepare low-phytic acid rapeseed protein concentrate, which can be used as Concentrated feed high protein source and edible rapeseed protein products. The preparation method of rapeseed protein concentrate has been reported domestically at present. Chinese patent 02103807.1 discloses a method for producing edible rapeseed protein and oil by means of aqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K14/415A23J1/14
Inventor 刘大川叶平张寒俊张安清刘金波柳学文
Owner WUHAN POLYTECHNIC UNIVERSITY
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