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Study on appropriate conditions to obtain germinated brown rice with high biological activities

Germinated brown rice strains contain more bioactive substances than germinated regular rice ones, however germination conditions play an important role in the activity and the content of those substances. The proper germination process provides the optimized active ingredients from rice that can be used for the production of nutritious beverages. In this study, we investigated the effects of pH, temperature and incubation time in microaerobic culture condition on the change of bioactive substances in Anh Dao brown rice. The optimal germination conditions with pH 3, temperature of 35 oC and duration of 36 hours release 109.11 U/g of the α-amylase activity, 17.22 (U/g) of the enzyme glutamate decacboxylase (GAD), 1.38 (U/g) of protease, 231.76 (mg/100 g dried weight) of GABA content and 21.9 (mg GAE/100 g dried weight) of polyphenol from germinated Anh Dao brown rice. In nutrient evaluation, germinated Anh Dao brown rice contains 65.53 % of starch, 2.49 % of lipid, 9.13 % of protein, 2.04 % of reducing sugar, and 1.26 % of ash. | Study on appropriate conditions to obtain germinated brown rice with high biological activities