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Method for efficiently co-producing maltose syrup and rice protein by rice processing by-products

A maltose syrup and by-product technology is applied in the field of high-efficiency co-production of maltose syrup and rice protein.

Active Publication Date: 2020-10-02
无锡甜丰食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the annual output of rice bran in my country has reached 18 million tons, but the utilization rate is only 10%, and most of them are used as low-value feed, causing great waste

Method used

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  • Method for efficiently co-producing maltose syrup and rice protein by rice processing by-products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Get rice processing by-product mixture (broken rice 1000g, rice bran 1000g) as processing raw material, specifically comprise the following steps:

[0028] (1) Mechanical pretreatment: After the raw materials are removed, use a pulverizer to crush the broken rice and rice bran into powder, pass through a 70-mesh sieve, first pour it into a ball mill for low-speed grinding for 15 minutes, and the ball mill speed is 70rpm, then pour it into a cyclone mill and grind for 30 minutes , to get the broken rice rice bran powder mixture;

[0029] (2) Ultrasonic treatment: The broken rice bran powder mixture obtained in step (1) is mixed with water at a ratio of 1:6 to liquid, and treated with ultrasonic waves for 15 minutes, and the ultrasonic intensity is 2.3w / (g.cm 2 ), the treatment temperature is 36°C;

[0030] (3) Slight bioactivation: sterilize the ultrasonic liquid obtained in step (2) at 100° C., then add 2.5% of Aspergillus niger NCPF 2275ATCC 16404 and 0.5 FPU / g dry ma...

Embodiment 2

[0038] Get rice processing by-product mixture (broken rice 1000g, rice bran 1000g) as processing raw material, specifically comprise the following steps:

[0039] (1) Mechanical pretreatment: After removing impurities from the raw materials, use a pulverizer to crush the broken rice and rice bran into powder, pass through a 70-mesh sieve, first pour it into a ball mill for low-speed grinding for 20 minutes at a ball mill speed of 80 rpm, and then pour it into a cyclone mill for 25 minutes. , to get the broken rice rice bran powder mixture;

[0040] (2) Ultrasonic treatment: Mix the broken rice bran powder mixture obtained in step (1) with water at a material-to-liquid ratio of 1:6.5, and process it with ultrasonic waves. The processing time is 13 minutes, and the ultrasonic intensity is 2.2w / (g.cm 2 ), the treatment temperature is 38°C;

[0041] (3) Slight bioactivation: sterilize the ultrasonic liquid obtained in step (2) at 100° C., then add 2.5% of Aspergillus niger NCPF 2...

Embodiment 3

[0049] Get rice processing by-product mixture (broken rice 1000g, rice bran 1000g) as processing raw material, specifically comprise the following steps:

[0050] (1) Mechanical pretreatment: After removing impurities from the raw materials, use a pulverizer to crush the broken rice and rice bran into powder, pass through a 70-mesh sieve, first pour it into a ball mill for low-speed grinding for 25 minutes, and the ball mill speed is 70rpm, then pour it into a cyclone mill and grind for 20 minutes , to get the broken rice rice bran powder mixture;

[0051] (2) Ultrasonic treatment: Mix the broken rice bran powder mixture obtained in step (1) with water at a material-to-liquid ratio of 1:7, and process it with ultrasonic waves for 12 minutes with an ultrasonic intensity of 2.0w / (g.cm 2 ), the treatment temperature is 40°C;

[0052] (3) Slight bioactivation: sterilize the ultrasonic liquid obtained in step (2) at 100° C., then add 2.5% of Aspergillus niger NCPF 2275ATCC 16404 a...

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Abstract

The invention discloses a method for realizing efficient co-production of malt syrup and rice protein by adopting rice processing by-products. Broken rice and rice bran are adopted as the raw materials. The method comprises the following processing steps: (1) carrying out mechanical pretreatment; (2) carrying out ultrasonic treatment; (3) carrying out mild biological activating; (4) carrying out degreasing pretreatment; (5) carrying out hydrolysis and liquefying by adopting alpha-amylase; (6) carrying out separating, namely, carrying out centrifugalizing on the liquefied liquid obtained in the step (3) at 3200r / min, thus obtaining the supernate and sediment; (7) preparing broken rice and rice brain protein; (8) carrying out modified treatment on saccharifying enzyme; and (9) preparing the broken rice and rice bran malt syrup. With the adoption of the method provided by the invention, the malt syrup and rice protein by-products with good quality can be prepared, and the utilization value of the rice processing by-products is favorably improved.

Description

technical field [0001] The invention belongs to the technical field of food fine processing and sugar production, and in particular relates to a method for efficiently co-producing maltose syrup and rice protein by utilizing rice processing by-products (broken rice and rice bran). Background technique [0002] Rice is the main food crop in my country, and 10-15% of broken rice will be produced in the milling process. At present, the broken rice produced by rice processing in my country is about 17 million tons every year. Due to the low hardness of broken rice and the easily soluble starch of broken rice , high degree of gelatinization, poor cooking characteristics, eating quality is far lower than the same variety of whole rice and other factors, it is rarely used directly for cooking rice. The main component of broken rice is starch, with a content as high as 70%-80%. The protein content and other nutrients are similar to those of rice, about 8%. Broken rice has good nutrit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P19/22C12P19/16C12P19/14C12P19/12C12P21/06C12R1/685
CPCC12P19/12C12P19/14C12P19/16C12P19/22C12P21/06C13K7/00
Inventor 何强飞
Owner 无锡甜丰食品有限公司
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