食品科学

• 基础研究 • 上一篇    下一篇

苦荞酒液态发酵工艺条件的优化

陈佳昕,赵晓娟,吴 均,杜木英   

  1. 西南大学食品科学学院,重庆市特色食品工程技术研究中心,重庆市农产品加工及贮藏重点实验室,重庆 400715
  • 发布日期:2014-07-03

Optimization of Liquid-State Fermentation Conditions for Buckwheat Wine

CHEN Jia-xin, ZHAO Xiao-juan, WU Jun, DU Mu-ying   

  1. Chongqing Special Food Programme and Technology Research Center, Chongqing Key Laboratory of Produce Processing and Storage,College of Food Science, Southwest University, Chongqing 400715, China
  • Published:2014-07-03

摘要:

以重庆酉阳生产的苦荞为原料,应用液态发酵技术,通过单因素和正交试验对苦荞酒的酿造工艺条件进行优化,从而确定苦荞酒的最佳工艺参数。结果表明:苦荞酒最佳液化工艺条件为α-淀粉酶添加量0.15%、pH 6.5、温度60 ℃、液化时间2.5 h;最佳糖化工艺条件为糖化酶添加量1.5%、pH 5.0、温度60 ℃、糖化时间3 h;最佳发酵工艺条件为酵母菌添加量0.1%、发酵温度28 ℃、pH 4.5。在此条件下发酵72 h即可得到酒度为9°左右的苦荞酒。

关键词: 苦荞酒, 液态法, 液化, 糖化, 发酵

Abstract:

This study reports the production of tartary buckwheat wine from liquid-state fermentation of tartary buckwheat
from Youyang, Chongqing municipality. We optimized the process conditions using single-factor and orthogonal array
designs. The best liquefaction results were obtained by enzymatic treatment for 2.5 h using α-amylase at pH 6.5 and 60 ℃
with an enzyme dosage of 0.15%. The best saccharification conditions were achieved by allowing the hydrolysis process
catalyzed by 1.5% glucoamylase at pH 5.0 and 60 ℃ to proceed for 2.5 h. The best fermentation conditions were determined
as 0.1% yeast inoculum size, pH 4.5 and 28 ℃. After 72 h of fermentation under these optimized conditions, tartary
buckwheat wine with an alcohol content of approximately 9% by volume was obtained.

Key words: tartary buckwheat wine, liquid-state fermentation, liquefaction, saccharification, fermentation