| 不同种类木瓜样品的总有机酸含量测定 |
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| 引用本文： | 刘晓棠,张卫明,姜洪芳,单承莺. 不同种类木瓜样品的总有机酸含量测定[J]. 食品研究与开发, 2010, 31(1) |
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| 作者姓名： | 刘晓棠 张卫明 姜洪芳 单承莺 |
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| 作者单位： | 1. 南京师范大学生命科学学院,江苏,南京,210097;南京野生植物综合利用研究院,江苏,南京,210042
2. 南京野生植物综合利用研究院,江苏,南京,210042 |
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| 基金项目： | 国家"十一五"支撑计划课题 |
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| 摘 要： | 建立木瓜中总有机酸含量的测定方法,并测定和比较皱皮木瓜和光皮木瓜共5个不同样品中的总有机酸含量.结果显示:24h内同一样品的测定结果稳定,RSD为1.28%,平均回收率为99.59%(n=6),RSD为1.548%;5个不同木瓜样品的总有机酸含量(以苹果酸酸计)在2.09%～3.47%之间.其中以皱皮木瓜1号的总有机酸含量最高(3.47%),皱皮木瓜4号最低(2.09%).
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| 关 键 词： | 木瓜 总有机酸 电位滴定 |
Determination of Tolal Organic Acids in Different Samples of Fructus Chaenomaelis |
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| LIU Xiao-tang,ZHANG Wei-ming,JIANG Hong-fang,SHAN Cheng-ying. Determination of Tolal Organic Acids in Different Samples of Fructus Chaenomaelis[J]. Food Research and Developent, 2010, 31(1) |
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| Authors: | LIU Xiao-tang ZHANG Wei-ming JIANG Hong-fang SHAN Cheng-ying |
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| Affiliation: | LIU Xiao-tang1,2,ZHANG Wei-ming1,JIANG Hong-fang2,SHAN Cheng-ying2 (1.College of Life Science,Nanjing Normal University,Nanjing 210097,Jiangsu,China,2.Nanjing Institute for the Comprehensive Utilization of Wild Plant,Nanjing 210042,China) |
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| Abstract: | To establish a method for determination the content of total organic acids in fructus chaenomelis,and then to determine the content of total organic acids in 5 different samples of fructus chaenomelis belonging to two species.Using the method of direct potentiometric titration.The content of the same sample was stable within 24 h,RSD was 1.28 %.Moreover,the average recovery was 99.59 %,RSD was 1.548 %(n=6).The values of total organic acids content in 5 different samples of fructus chaenomelis were in the ra... |
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| Keywords: | fructus chaenomelis total organic acids potentiometric titration |
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