Microwave drying germinated brown rice quality protecting method based on tempering and variable power

Abstract

The invention discloses a microwave drying germinated brown rice quality protecting method based on tempering and variable power, and relates to a drying method of germinated brown rice. The microwave drying germinated brown rice quality protecting method based on the tempering and the variable power solves the problems that an existing microwave drying method of the germinated brown rice destroys nutritional ingredients in the germinated brown rice, and microwave energy is low in utilization efficiency. The microwave drying germinated brown rice quality protecting method based on the tempering and the variable power includes: evenly and flatly spreading the germinated brown rice on a continuous microwave drying device conveying belt, introducing a tempering and variable power technology under certain microwave drying power and certain air speed, and drying the germinated brown rice until moisture content of the germinated brown rice ranges from 14% to 15%. The microwave drying germinated brown rice quality protecting method based on the tempering and the variable power retains the nutritional ingredients in the germinated brown rice to the utmost. The germinated brown rice after being dried through the microwave drying germinated brown rice quality protecting method based on the tempering and the variable power contains 13.1-18.5mg/100g of gamma-aminobutyric acid, and starch content in the germinated brown rice after being dried through the microwave drying germinated brown rice quality protecting method based on the tempering and the variable power is 69.0%-89.3%. Breakdown rate of the germinated brown rice after being dried through the microwave drying germinated brown rice quality protecting method based on the tempering and the variable power is 30.0%-40.0%. Color L* value of the germinated brown rice after being dried through the microwave drying germinated brown rice quality protecting method based on the tempering and the variable power is 60.6-70.4. Microwave energy utilization efficiency of the microwave drying germinated brown rice quality protecting method based on the tempering and the variable power is 50.7%-60.5%. The microwave drying germinated brown rice quality protecting method based on the tempering and the variable power obtains good quality products, retains the intrinsic nutritional ingredients and intrinsic colors of the germinated brown rice to the utmost, and achieves good quality.

Description

technical field [0001] The present invention relates to a drying method of germinated brown rice. Background technique [0002] Germinated brown rice is rich in γ - Active substances such as aminobutyric acid have very good health benefits. At the same time, the coarse fibers of the brown rice bran layer are softened after germination, thereby improving the cooking performance of the brown rice. Germinated brown rice has a high initial moisture content and is not easy to store. If it is not dried in time, it will cause loss of nutrients and reduce its edible quality. Therefore, an appropriate drying method is selected to maximize the retention of nutrients and sensory quality of germinated brown rice while removing water, and to minimize the impact of drying process on the nutritional content and sensory quality of germinated brown rice. At present, the drying methods of germinated brown rice mainly include vacuum freeze drying, hot air drying and microwave drying. Howeve...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the traditional microwave drying method of germinated brown rice destroys the nutrient content of germinated brown rice, and the high bursting rate causes poor quality of germinated brown rice, and provides a method for protecting the quality of germinated brown rice based on microwave drying and variable power

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