文献类型：期刊文献

中文题名：芦荟苷在水中稳定性的研究

英文题名：Study on the Stability of Aloin Aqueous Solution

作者：晏正[1];陈双喜[1];寇正福[2];刘坐镇[2]

机构：[1]河南大学生命科学学院生物工程研究所,河南开封475004;[2]华东理工大学生物反应器工程国家重点实验室,上海200237

年份：2010

卷号：40

期号：3

起止页码：287

中文期刊名：河南大学学报（自然科学版）

外文期刊名：Journal of Henan University:Natural Science

收录：CSTPCD;;北大核心:【北大核心2008】；

语种：中文

中文关键词：芦荟苷;高效液相色谱;稳定性;降解率

外文关键词：aloin; HPLC; stability; degradation ratio

摘要：采用高效液相色谱法,研究了时间、温度、pH、金属离子等因素对水溶液中芦荟苷稳定性的影响.结果表明,芦荟苷在水中不稳定,室温放置6d后其含量下降90.5%.温度和pH对芦荟苷水溶液稳定性有显著影响.80℃时,芦荟苷8h降解率高达98%;而在5℃时,4d降解率低于5%.当pH≥7时,芦荟苷在12h内降解率超过95%;而pH=2.0时,4d降解率只有21.1%.Mn2+,Cu2+,Fe3+等对芦荟苷降解具有促进作用,而Mg2+则对芦荟苷降解有抑制作用.
The effects of time,temperature,pH and metallic ions on the stability of alion aqueous solution were investigated by HPLC method. The results indicated that aloin dissolved in water was unstable,the degradation ratio reached 90.5% at room temperature in 6 days. Temperature and pH had remarkable influences on the stability of aloin. At 80 ℃,the degradation ratio could reach 98% in 8 hours,but less than 5% at 5 ℃ in 4 days. At pH≥7.0,the degradation ratio was higher than 95% in 12 hours,while the ratio was only 21.1% at pH=2.0 in 4 days. Mn^2＋,Cu^2＋and Fe^3＋ could increase the aloin degradation,while Mg^2＋ showed weak behaviour of degradation.