Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Technics of distilling rice protein

An extraction process and rice protein technology, applied in the field of rice protein extraction process, can solve the problems of high processing cost, influence on the quality of rice protein, complicated process, etc., and achieve the effects of reducing production cost, being suitable for large-scale industrial production, and improving flavor.

Inactive Publication Date: 2008-01-02
ZHEJIANG UNIV OF TECH
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alkaline extraction with enzymatic hydrolysis pretreatment has a higher extraction rate, and the purity of the obtained rice protein is also higher, but the process is more complicated, the processing cost is high, and the quality of the rice protein is also affected by the alkali extraction.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take the leftovers of early indica rice processed as monosodium glutamate (produced from Hangzhou monosodium glutamate factory in Zhejiang Province, the same below), with a dry weight of 1.0 kg, add 6.0 kg of pure water adjusted to pH 1.0 with sulfuric acid, stir evenly, and then add 10% Adjust the pH to 1.0 with mass concentration of sulfuric acid, heat and stir in a 90°C water bath for 3 hours, cool to 50°C, filter with a 100-mesh filter cloth to remove residue, cool the filtrate to room temperature, and adjust the pH of the filtrate with 10% mass concentration of sodium hydroxide to 4.0, let stand for 1.5 hours, pour off the clear liquid, and spray dry the solid to obtain 0.51kg of rice protein product with a purity of 86.7%.

Embodiment 2

[0019] Weigh the leftovers of early indica rice and process it as monosodium glutamate, the dry weight is 1.0kg, add 6.0kg of pure water that has been adjusted to pH 1.0 with sulfuric acid, stir evenly, and then adjust the pH to 1.0 with 10% mass concentration of sulfuric acid. Heat to 110°C with water vapor in a pressure vessel, keep it warm for 1 hour, stop heating, stir while cooling, reach 40°C, filter with 100-mesh filter cloth to remove residue, cool the filtrate to room temperature, and use 10% mass concentration of hydrogen Sodium oxide was used to adjust the pH of the filtrate to 4.0. Stand still for 1.5 hours, pour off the clear liquid, and spray-dry the solid to obtain 0.50 kg of rice protein product with a purity of 87.5%.

Embodiment 3

[0021] Weigh the leftovers of early indica rice and process it as monosodium glutamate, with a dry weight of 1.0kg, add 6.0kg of pure water that has been adjusted to pH 0.5 with sulfuric acid, stir evenly, and then adjust the pH to 0.5 with 10% mass concentration of sulfuric acid. Insulate and stir in a 90°C water bath for 3 hours, cool to 50°C, filter through a 100-mesh filter cloth to remove residue, cool the filtrate to room temperature, and adjust the pH of the filtrate to 4.0 with 10% mass concentration of sodium hydroxide. Stand still for 1.5 hours, pour off the clear liquid, and spray dry the solid to obtain 0.52 kg of rice protein product with a purity of 85.6%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a process of extracting rice protein, which takes rice processing leftovers as raw material and comprises following steps: mixing acidic solution with pH being 0.5-3.5 with rice processing leftovers, the weight of acidic solution is 4-10 adjusted by sulfate times of that of rice processing leftovers, stirring evenly, adjusting pH with sulfate to 0.5-3.5, thermal insulating for 0.5-6 hours at 70-110 Deg. C, filtering to remove slag at 30-50 Deg. C, cooling filtering liquid to room temperature, adjusting pH to 3.5-4.5, stewing for 0.5-2 hours, pouring out clear liquid, spray drying, and getting said rice protein. The invention is characterize by dramatically improved rice protein taste compared with alkali extraction; increased safety because the acidic extraction has no influence for amino acid damage; greatly reduced production cost compared with enzyme extraction, high purity of protein of more than 85wt%, and suitability for large scale production.

Description

(1) Technical field [0001] The invention relates to a rice protein extraction process, which belongs to the field of food processing. (2) Background technology [0002] At present, the methods for extracting rice protein from rice processing leftovers include alkaline extraction, enzymatic extraction, and enzymatic pretreatment alkaline extraction. The alkaline extraction process is relatively simple, but under high alkaline conditions, it can damage amino acids, affect the quality of rice protein, and even form toxic substances. The enzymatic extraction method can maintain the good quality of rice protein, but the processing cost is high, the extraction rate is average, and the purity of the obtained rice protein is not high. Alkaline extraction with enzymatic hydrolysis pretreatment has a higher extraction rate and higher purity of rice protein, but the process is more complicated, the processing cost is high, and the quality of rice protein is also affected by alkali ext...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/12
Inventor 钱俊青杨胜利卢时勇
Owner ZHEJIANG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com