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Method for prolonging storage period of lightly-milled nutrition rice

A technology for nutritious rice and storage period, applied in the field of fresh-keeping of agricultural products, can solve the problems of high burst rate and poor storage performance of lightly milled nutritional rice, and achieve the effects of small burst rate, maintaining appearance and cooking characteristics, and ensuring the quality of rice.

Inactive Publication Date: 2013-03-06
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor storability of lightly milled nutritious rice in the prior art, or high waist burst rate, the present invention provides a method capable of prolonging the storage period of lightly milled nutritious rice

Method used

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  • Method for prolonging storage period of lightly-milled nutrition rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Put the lightly milled nutrient rice (the reduction rate is 5%) on the conveyor belt, the conveying speed is 1 kg / s, and the air and superheated steam are alternately treated, and placed at room temperature (25±3°C, 65±3% RH) storage. Alternate processing is as follows:

[0015] (1) Preheat the lightly milled nutritious rice with hot air, the air temperature is 50°C, the humidity is 30%, the flow rate is 2 m / s, and the action time is 5 seconds; (2) The hot air is used for lightly milled nutritious rice For processing, the air temperature is 90°C, the humidity is 30%, the flow velocity is 2 m / s, and the action time is 10 seconds; (3) Cool the lightly milled nutritious rice with air, the air temperature is 50°C, and the humidity is 40% , the flow rate is 2 m / s, and the action time is 10 seconds; (4) Treat lightly milled nutrient rice with hot steam, the superheated steam temperature is 150°C, the flow rate is 2 m / s, and the action time is 20 seconds; (5 ) through the ai...

Embodiment 2

[0017] Put the lightly milled nutritious rice (the reduction rate is 5%) on the conveyor belt, the conveying speed is 1.5 kg / s, and the air and superheated steam are alternately treated, and placed at room temperature (25±3°C, 65±3% RH) storage. Alternate processing is as follows:

[0018] (1) Preheat the lightly milled nutritious rice with hot air, the air temperature is 60°C, the humidity is 40%, the flow rate is 3 m / s, and the action time is 10 seconds; (2) The hot air is used for lightly milled nutritious rice For processing, the air temperature is 100°C, the humidity is 40%, the flow velocity is 3 m / s, and the action time is 15 seconds; (3) Cool the lightly milled nutritious rice with air, the air temperature is 60°C, and the humidity is 50% , the flow rate is 3 m / s, and the action time is 20 seconds; (4) Treat lightly milled nutrient rice with hot steam, the superheated steam temperature is 180°C, the flow rate is 3 m / s, and the action time is 15 seconds; (5 ) through ...

Embodiment 3

[0020] Put the lightly milled nutrient rice (the reduction rate is 5%) on the conveyor belt, the conveying speed is 2 kg / s, and the air and superheated steam are alternately treated, and placed at room temperature (25±3°C, 65±3% RH) storage. Alternate processing is as follows:

[0021] (1) Preheat the lightly milled nutritious rice with hot air, the air temperature is 70°C, the humidity is 50%, the flow rate is 5 m / s, and the action time is 20 seconds; (2) The hot air is used for lightly milled nutritious rice For processing, the air temperature is 110°C, the humidity is 50%, the flow velocity is 5 m / s, and the action time is 20 seconds; (3) Cool the lightly milled nutritious rice with air, the air temperature is 55°C, and the humidity is 60% , the flow rate is 5 m / s, and the action time is 30 seconds; (4) Treat lightly milled nutrient rice with hot steam, the superheated steam temperature is 200°C, the flow rate is 5 m / s, and the action time is 10 seconds; (5 ) through the ...

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Abstract

The invention relates to a method for prolonging the storage period of lightly-milled nutrition rice of which the milling reduction rate is 2-8 percent. The method is characterized in that the aim of prolonging the storage period of lightly-milled nutrition rice is fulfilled by adopting a method for alternatively treating through air and overheated steam. According to the method, gradual heating and alternate treatment are adopted, so that the percent cracked rice of lightly-milled nutrition rice can be lowered specifically, loss of nutritional ingredients is reduced, eggs hidden in rice grains can be killed by hot air and overheated steam in a synthetic way, the activity of lipoxidase and lipase in brown rice is passivated, and lipid oxidation is suppressed. Due to the adoption of the method, the storage period of lightly-milled nutrition rice can be prolonged remarkably.

Description

technical field [0001] The invention relates to a method capable of prolonging the storage period of lightly milled nutritious rice, which belongs to the field of fresh-keeping agricultural products. Background technique [0002] With the improvement of living standards, people pay more and more attention to healthy, nutritious and balanced diet. In Europe, America, Japan and other countries, brown rice with better nutritional value is advocated. However, brown rice has not been widely accepted because it contains more crude fibers and bran layers, has poor expansibility and water absorption, and has a bad taste. However, after multi-stage light milling of brown rice with a grinding wheel, the lightly milled nutritious rice (reduction rate of 2%-8%) can be obtained with the brown rice cortex removed and the aleurone layer and germ retained. Because lightly milled nutritious rice removes part of the bran layer, it tastes better than brown rice and contains more nutrients th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B9/00A23B9/02
Inventor 刘成梅钟业俊付桂明刘伟罗舜菁李俶万婕钟俊桢吴建永
Owner NANCHANG UNIV
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