荔枝酒陈酿期间的电化学参数和感官品质研究  

The Electrochemical Parameters and Sensory Quality of Litchi Wine during Aging Process

作　　者：王天将[1] 蹇华丽[1] 卫高利 武春联 杨幼慧[1] 

机构地区：[1]华南农业大学食品学院,广州510642 [2]广州市顺昌源酒业有限公司,广州510900

出　　处：《食品工业》2016年第2期149-152,共4页The Food Industry

基　　金：科技部农业科技成果转化资金项目(2012E0002005);广东省农产品加工共性技术创新平台(2013B090700008)

摘　　要：为了解荔枝酒陈酿期间电化学参数即溶解氧（DO）、氧化还原电位（ORP）、电导率、p H等与感官品质的变化规律,通过对新酿大罐荔枝酒和不同年份瓶储荔枝酒的电化学参数、褐变度（A420）及总酚含量等进行测定,结合感官评定分析,结果表明,新酿大罐荔枝酒的初始DO,ORP值均较高,经5~6个月的罐储趋于稳定,p H和电导率基本稳定,感官评定表明新酿荔枝酒罐储6个月已达成熟;瓶储荔枝酒随甁储时间延长DO值和ORP值呈下降趋势直至稳定,p H和电导率浮动范围较小,当电导率发生较大波动时,一定程度上表征感官品质劣变;随时间延长,瓶储荔枝酒褐变逐渐加深,感官品质随着褐变加重而明显下降,呈极显著的负相关（p〈0.01）,表明荔枝酒不适宜长期甁储,2年内饮用最佳;电化学参数对荔枝酒陈酿过程的控制具有一定的指导意义。To investigate the change rules of the electrochemical parameters （such as dissolved oxygen, DO, oxidation and reduction potential, ORP, conductivity and pH） and sensory quality of litchi wine during aging process, the electrochemical parameters, degree of browning （A420） and total phenols of litchi wine included different vintage and new brewing aged on stainless steel tank were measured, as well as the sensory quality. The results showed that the DO and ORP of litchi wine aged on stainless steel tank were relatively high in the earlier aging period, and then kept stable after 5-6 months, pH and conductivity had little change, sensory evaluation showed that litchi wine aged on tank was ripe after 6 months; When litchi wine aged in bottle, the DO and ORP gradually decreased until to stable with aging time, pH and conductivity waved in a little range, when the conductivity changed, which to the certain degree representthe sensory quality deteriorated; With the aging time of litchi wine aged in bottle, the browning smoothly increased while the sensory quality significantly decreased, had a significant negative correlation （p〈 0.01）, these indicated that litchi wine was not suitable to long aging in bottle and it would be better drink within 2 years. The electrochemical parameters are instructive and meaningful to control the aging of litchi wine.

关 键 词：荔枝酒 陈酿 电化学参数 年份 感官品质 

分 类 号：O657.1[理学—分析化学] TS262.7[理学—化学]