Assessment of β-glucosidase activity in selected wild strains of Oenococcus oeni for malolactic fermentation

被引:49
作者
Barbagallo, RN [1 ]
Spagna, G
Palmeri, R
Torriani, S
机构
[1] Univ Catania, DOFATA, I-95123 Catania, Italy
[2] Univ Verona, Sci & Technol Dept, I-37134 Verona, Italy
关键词
beta-glucosidase; Oenococcus oeni; wine; malolactic fermentation;
D O I
10.1016/j.enzmictec.2003.11.013
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
A remarkable variability in the beta-glucosidase activity was observed between 10 wild strains of Oenococcus oeni isolated from wines of the Valpolicella area. The activity occurred in both whole and sonicated cells (intercellular and parietal activities) but not in the supernatants of the cultures. The properties of beta-glucosidase produced by DSTVR 7 and 10 strains include its activation in the presence of ethanol. These strains retained the enzyme activity at oenological conditions (pH value, temperature and ethanol) and showed good malolactic performance when inoculated in wine. None of the tested strains possessed anthocyanase activity. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码:292 / 296
页数:5
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