食品科学 ›› 2013, Vol. 34 ›› Issue (21): 292-296.doi: 10.7506/spkx1002-6630-201321058

• 生物工程 • 上一篇    下一篇

薏苡仁醋的醋酸发酵工艺条件响应面法优化

王 颖,阚建全,余义筠,郭克娜   

  1. 1.西南大学食品科学学院,重庆市农产品加工及贮藏重点实验室,农业部农产品贮藏保鲜质量安全风险评估实验室(重庆),
    重庆 400715;2.重庆君亲食品有限公司,重庆 400700
  • 收稿日期:2012-11-21 修回日期:2013-09-25 出版日期:2013-11-15 发布日期:2013-10-28
  • 通讯作者: 王颖 E-mail:w-ying1230@163.com

Optimization of Acetic Fermentation Process for Semen Coicis Vinegar by Response Surface Methodology

WANG Ying,KAN Jian-quan,YU Yi-jun,GUO Ke-na   

  1. 1. Key Laboratory of Products Processing and Storage of Chongqing, Laboratory of Quality and Safety Risk Assessment for Agro-products Preservation(Chongqing), Ministry of Agriculture, College of Food Science, Southwest University,Chongqing 400715, China;2. Junqin Food Co. Ltd. of Chongqing, Chongqing 400700, China
  • Received:2012-11-21 Revised:2013-09-25 Online:2013-11-15 Published:2013-10-28

摘要:

以薏苡仁发酵酒为原料,筛选醋酸菌菌种,并在单因素试验基础上,运用响应面法对薏苡仁醋的醋酸发酵工艺条件进行优化研究。结果表明:选择醋酸杆菌AS1.41作为发酵菌种;响应面优化的最佳工艺条件为装液量20%、发酵温度30℃、发酵时间5.5d、初始pH4.2、初始酒精度7.5%、醋酸菌接种量12.60%;在此条件下发酵得到的薏苡仁醋的醋酸产量为6.76g/100mL,醋香浓郁,有薏苡仁的典型香气,口感柔和纯正。

关键词: 薏苡仁醋, 响应面法, 醋酸发酵, 工艺参数

Abstract:

This study reports on the optimization of acetic acid fermentation for semen coicis vinegar using response surface
methodology. Results indicated that Acetobacter AS1.41 was selected as fermentation bacteria. The optimal fermentation
conditions were 20% medium volume in a 250-mL conical flask, fermentation temperature of 30 ℃, fermentation time
of 5.5 d, initial pH 4.2, initial alcohol degree of 7.5% and inoculum (acetic acid bacteria) amount of 12.60%. Under these
conditions, acetic acid content was 6.76 g/100 mL in the pearl barley vinegar obtained. It had a typical aroma of coix seed
and a soft and pure taste.

Key words: pearl barley vinegar, response surface methodology, acetic acid fermentation, process parameters

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