Enrichment of Selenium in Germinated Brown Rice and Optimization of Microwave Drying and Extruding Process

Abstract: The effects of selenium-enriched germinated brown rice   and  microwave drying equipment  extrusion on the nutritional quality of selenium-enriched germinated brown rice were investigated by using common japonica rice as raw material.

 microwave drying equipment 

It was found that when the mass concentration of selenium was 10 mg/L, a higher quality selenium-enriched germinated brown rice could be obtained. Under this condition, the germination rate of brown rice was 97.9%, and the organic selenium content was 977.6 μg/kg (mass fraction 98.5%). The content of γ-aminobutyric acid is 445.9 mg/kg; the microwave drying at 40 °C is beneficial to maintain the content of selenium and γ-aminobutyric acid in germinated brown rice; the content of organic selenium and γ-aminobutyric acid in extruded products Compared with brown rice, it increased to 29 times and 5 times respectively.

Studies have shown that sodium selenite can be used as a selenium-enriched reagent to achieve effective selenium-enriched germinated brown rice, and selenium-enriched germinated brown rice can be used to develop related nutrient-expanded foods.

germinated brown rice microwave drying