摘要
利用酒精度快速蒸馏仪和酒精度快速测定仪测定分析了饮料酒的酒精度。验证了蒸馏过程中不同酒类的最佳馏出液质量,系统分析了该方法对饮料酒酒精度的测定准确性、精密度、适用性与不确定度。方法对不同酒精度的酒精度标准参比溶液以及15～25℃之间不同温度的酒精度标准参比溶液的测定结果均与参考值一致,无差异(P> 0. 05)。利用该方法与密度瓶法同时对不同酒精度的蒸馏酒、发酵酒的酒精度进行测定,二者测定结果一致,无差异(P> 0. 05),且酒精度快速测定仪的测定精密度(SD≤0. 01%vol)优于密度瓶法。酒精度快速测定仪可在20 s内完成酒精度的精确测定,操作简单、时效性强、重复性好,可广泛用于饮料酒企业生产指导,品控检测以及相关检测机构的日常检验。
In this paper,rapid distiller and alcohol tester were used to determine alcohol contents of alcoholic beverages.In addition,the optimal distillate volumes of different samples were validated,and the accuracy,precision,and applicability of the method were analyzed systematically.The results showed that there were no significant differences (P>0.05) in alcoholic strengths between reference samples as well as the alcoholic strengths measured at 15-25℃.The alcoholic strengths of distilled liquor and fermented wine with different alcohol contents were measured by the rapid method and the pycnometer method.The results of these two measurements were consistent and had no significant differences (P>0.05).Moreover,the precision of super alcomat (SD≤0.01% vol) was better than that of pycnometer method.Super alcomat could determine the alcoholic strength in 20 s.It is simple,effective,and with excellent repeatability,and thus can be widely used for production guidance and quality control for alcoholic beverages enterprises,as well as for testing organizations for daily inspection.
作者
李国辉
高红波
吕志远
常迪
王道兵
钟其顶
LI Guohui;GAO Hongbo;L Zhiyuan;CHANG Di;WANG Daobing;ZHONG Qiding(China National Research Institute of Food & Fermentation Industries Co.,Ltd,Beijing 100015,China;National Standardization Center of Food & Fermentation,Beijing 100015,China;Jinan Baotu Spring Brewery Co.,Ltd.,Jinan 250115,China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2019年第1期197-201,共5页
Food and Fermentation Industries
基金
国家自然基金青年项目(31601580
31601553)
北京市科技新星计划(xx2016B079)
科技部"十三五"重大科技计划(2016YEE0113200
2016YFF0203903)
科技部国际合作项目(2015DFA31720)
欧盟地平线2020(635690-OLEUM-2020-SFS-2014-2015)
关键词
酒精度快速测定仪
密度瓶法
酒精度
蒸馏酒
发酵酒
super alcomat
pycnometer method
alcoholic strength
distilled liquor
fermented wine
