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杨梅果酒总糖测定方法的改进初探
引用本文:黄国清,肖仔君,钟瑞敏,曾庆孝.杨梅果酒总糖测定方法的改进初探[J].食品科技,2006,31(8):245-248.
作者姓名:黄国清  肖仔君  钟瑞敏  曾庆孝
作者单位:1. 华南理工大学轻工与食品学院,广州,510640;韶关学院食品工程系,韶关,512005
2. 韶关学院食品工程系,韶关,512005
3. 华南理工大学轻工与食品学院,广州,510640
基金项目:广东省教育厅自然科学基金
摘    要:探讨了改进GB/T15038-1994标准中直接滴定法测定杨梅果酒生产中总糖的方法。进行了在预处理时加入澄清剂、调小葡萄糖标准溶液浓度、调整斐林氏溶液成分含量并在斐林氏溶液中加入次甲基蓝指示剂、采用生化滴定管滴定、样品滴定时预加少量样液再用葡萄糖标准溶液滴定至终点等改进措施试验,结果表明,改进的直接滴定法方法更明确,可操作性更强,结果更精确,具有普遍的推广价值。

关 键 词:杨梅果酒  总糖  直接滴定法  测定
文章编号:1005-9989(2006)08-0245-04
修稿时间:2006年5月9日

Preliminary study on improved determination methods of the total sugar in red bayberry wine
HUANG Guo-qing,XIAO Zi-jun,ZHONG Rui-min,ZENG Qing-xiao.Preliminary study on improved determination methods of the total sugar in red bayberry wine[J].Food Science and Technology,2006,31(8):245-248.
Authors:HUANG Guo-qing  XIAO Zi-jun  ZHONG Rui-min  ZENG Qing-xiao
Abstract:The improved direct titrimetric method of the total sugar (Chinese standard method GB/T15038-1994) in red bayberry (Myrica rubra) dry wine was investigated. The experiments included that adding clarifier; reducing standard solution concentration of glucose; adjusting fehling reagent component and adding mehylene Blue in it; using biochemical burette for titration and previously adding a little sample solution before actual titration by glucose standard solution. The results showed that the improved method was more clear and operable, and the result is more accurate. It is worth popularization.
Keywords:red bayberry (Myrica rubra) wine  total sugar  direct titrimetric method  determination
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