Sticky rice (535 nuo) was obtained from local market. The rice contained protein 8.3% (db), fat 1.1% (db), and starch 90% (db). The thermostable a amylase from Bacillus licheniformis was used. The enzyme had an optimum pH of 6-8, a density of 1.2 g/ml, and an activity of 120 KNU/g (1 KNU¼ Kilo Novo alpha-amylase Unit,defined as the amount of enzyme which hydrolyzes 5.26 g of starch per h). Wheat Qu and yeast were presented by Zhejiang Nverhong
Shaoxing Wine Co, Ltd.