二次发酵降低葡萄酒中双乙酰的含量

被引:6
作者
李凭
石婷婷
肖冬光
机构
[1] 天津科技大学生物工程学院工业微生物教育部重点实验室天津市工业微生物重点实验室
基金
天津市科技支撑计划;
关键词
葡萄酒; 二次发酵; 双乙酰;
D O I
暂无
中图分类号
TS262.6 [葡萄酒、香槟酒];
学科分类号
100403 [营养与食品卫生学];
摘要
该文通过在葡萄酒发酵后期添加蔗糖,促使酵母进行二次发酵降低双乙酰的含量。结果表明,二次发酵的最适加糖量为28 g/L,与常规发酵相比,二次发酵后双乙酰含量降低了29.87%;在此基础上,对酵母菌株WY1、WY1-1、WY1-2和WY1-12进行加糖二次发酵试验,测定出4株菌均可降低发酵液中双乙酰的含量,其中菌种WYI-12的发酵液中双乙酰的含量最低,为4.05 mg/L,比常规发酵降低了37.21%,改善了葡萄酒的感官质量。
引用
收藏
页码:115 / 119
页数:5
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