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

A maltodextrin and by-product technology, which is applied in the field of food finishing technology and sugar making, can solve the problems of only 10% utilization rate and waste, and achieve the effects of enhanced surface activity, improved extraction rate and good application prospects.

Active Publication Date: 2019-04-23
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 maltodextrin and rice protein by rice processing by-products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Get rice processing by-product mixture (broken rice 1000g, rice bran 1000g) as processing raw material, specifically comprise the following steps:

[0027] (1) Mechanical crushing: After removing impurities from the raw materials, use a grinder to crush 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 broken rice bran powder;

[0028] (2) Ultrasonic treatment: The broken rice bran powder obtained in step (1) is mixed with water at a ratio of 1:7 to liquid, and treated with ultrasonic waves for 15 minutes, ultrasonic intensity 2.4w / (g.cm2), and treatment temperature 38 ℃;

[0029] (3) Slight bioactivation: Sterilize the ultrasonic solution obtained in step (2) at 100°C, then add 1.5% of dry matter weight Bacillus subtilis ATCC 6633 and 0.2FPU / g of cellulose complex enzyme, and heat ...

Embodiment 2

[0036] Get rice processing by-product mixture (broken rice 1000g, rice bran 1000g) as processing raw material, specifically comprise the following steps:

[0037] (1) Mechanical crushing: After removing impurities from the raw materials, use a grinder to crush 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, and the ball mill speed is 80rpm, then pour it into a cyclone mill and grind for 25 minutes , to get broken rice bran powder;

[0038] (2) Ultrasonic treatment: the broken rice bran powder obtained in step (1) is mixed with water at a ratio of 1:7.5 to liquid, and treated with ultrasonic waves for 12 minutes, ultrasonic intensity 2.3w / (g.cm2), and treatment temperature 37 ℃;

[0039] (3) Slight bioactivation: Sterilize the ultrasonic solution obtained in step (2) at 100°C, then add 1.5% of dry matter weight Bacillus subtilis ATCC 6633 and 0.2FPU / g of cellulose complex enzyme, and hea...

Embodiment 3

[0046] Get rice processing by-product mixture (broken rice 1000g, rice bran 1000g) as processing raw material, specifically comprise the following steps:

[0047] (1) Mechanical crushing: After removing impurities from the raw materials, use a grinder to crush 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 90rpm, then pour it into a cyclone mill and grind for 20 minutes , to get broken rice bran powder;

[0048] (2) Ultrasonic treatment: the broken rice bran powder obtained in step (1) is mixed with water at a ratio of 1:8 to liquid, and treated with ultrasonic waves for 10 minutes, ultrasonic intensity 2.4w / (g.cm2), and treatment temperature 35 ℃;

[0049] (3) Slight bioactivation: Sterilize the ultrasonic solution obtained in step (2) at 100°C, then add 1.5% of dry matter weight Bacillus subtilis ATCC 6633 and 0.2FPU / g of cellulose complex enzyme, and heat ...

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Abstract

The invention discloses a method for efficiently co-producing maltodextrin and rice protein through rice processing byproducts. The method is characterized in that broken rice and rice bran are used as the raw materials. The method comprises the following processing steps: (1) mechanically crushing; (2) ultrasonically processing; (3) lightly biologically activating; (4) debranching and preprocessing; (5) hydrolyzing and liquidating with alpha-amylase; (6) separating; (7) preparing broken rice and rice bran protein; (8) preparing broken rice and rice bran maltodextrin. With the adoption of the method, high-quality broken rice and rice bran maltodextrin and rice protein byproducts can be prepared, so that the utilization value of the rice processing byproducts can be further increased.

Description

technical field [0001] The invention belongs to the fields of food fine processing technology and sugar production, and in particular relates to a method for efficiently co-producing maltodextrin 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 nutri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B30/18C08H1/00
CPCC08B30/18C08H1/00
Inventor 张法政
Owner 无锡甜丰食品有限公司
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