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한국식품과학회지
→ 한국식품과학회지2017 ; 49(06): 605-609
Characteristics of gaeryangmerou wine deacidified by a malic acid-degrading yeast
사과산 분해 효모에 의한 개량머루주의 감산 특성
Chan-Woo Kim, Ji-Eun Kang, Seok-Tae Jeong, Soo-Hwan Yeo, Young-Hoi Kim1, Myung-Kon Kim1, Heui-Dong Park2, and Han-Seok Choi*
Fermented Food Science Division, National Institute of Agricultural Sciences 1Department of Food Science and Technology, Chonbuk National University 2School of Food Science and Biotechnology, Kyungpook National University
김찬우·강지은·정석태·여수환·김영회1·김명곤1·박희동2·최한석*
국립농업과학원 발효식품과, 1전북대학교 식품공학과, 2경북대학교 식품공학부
ABSTRACT
The effect of malic acid-degrading yeast on the quality of Gaeryangmerou (Vitis spp.) wine obtained from grapes commonly used for making wine in Korea was investigated. Alcoholic fermentation was carried out at 25oC, for 14 days. A malic acid-degrading yeast was used as the experimental sample and a commercial yeast, Fermivin, was used as a control. The fermentation process for the experimental yeast lasted 2-3 days longer than that of Fermivin. The pH and the volatile acid content of the wine were 3.94 and 244.20 mg/L, respectively. The total acid content was 0.86% for the experimental group and 0.94% for the control group. The contents of malic acid and succinic acid in the experimental group were significantly lower than that of the control group (245.61, 50.18 mg% for experimental group versus 302.44, 68.39 mg% for control group, respectively). In contrast, lactic acid content was slightly higher in the experimental group. As expected, the main volatile flavor compounds of Gaeryangmerou wine varied with the yeast used for fermentation and were determined to be isoamyl alcohol, β-phenethyl alcohol, 2-methyl-1-propanol, and diacetyl for the experimental wine.
KEYWORD
gaeryangmerou; wine, deacidification, yeast, fermentation
한국식품과학회지 2017 Dec; 49(06): 605 - 609
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