• Applied Biological Chemistry
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• v.38 no.4
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• pp.297-301
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• 1995

The saccharification ratio and efficiency of alcohol fermentation from hot air puffed and steamed flour of husked rice and barley varieties were compared. Enzymatic hydrolysis of husked rice flour was improved by puffing, and that of glutinous rice was higher than that of nonglutinous one. By puffing of husked rice and barley, alcohol production was slightly increased, but fermentation period was reduced comparing with steam cooked husked rice and barley. Fermentation efficiencies of husked rice by puffing and rice by steam cooking were 90.72% and 87.77%, respectively. Residual reducing sugar of barley mash was higher than that of rice mash. The pH of mash was gradually increased during fermentation and was high in case of puffing treatment.