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[1]占文婷,胡思卓,黄倞文,等.辣椒粉中还原型维生素C含量的测定[J].中国调味品,2016,(10):1-7,11.
 ZHAN Wenting,HU Sizhuo,HUANG Jingwen,et al.Determination of the Reduction-type Vitamin C Content in Paprika Powder[J].CHINA CONDIMENT,2016,(10):1-7,11.
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辣椒粉中还原型维生素C含量的测定
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《中国调味品》[ISSN:1000-9973/CN:23-1299/TS]

卷:
期数:
2016年10期
页码:
1-7,11
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Determination of the Reduction-type Vitamin C Content in Paprika Powder
作者:
占文婷胡思卓黄倞文焦顺山*
(上海交通大学农业与生物学院食品科学与工程系,200240,上海)
Author(s):
ZHAN Wenting HU Sizhuo HUANG Jingwen JIAO Shunshan*
(Department of Food Science and Engineering, Shanghai Jiao Tong University, 200240, Shanghai)
关键词:
钼蓝比色法辣椒粉还原型维生素C吸收峰EDTA-2Na
Keywords:
Molybdenum blue spectrometry methodPaprika powder Reduction-type vitamin C Absorption spectrum EDTA-2Na
摘要:
采用钼蓝比色法测定辣椒粉中还原型维生素C含量,重点探究钼蓝化合物的最佳吸收波长、草酸-EDTA溶液中的EDTA-2Na最佳加入量以及水浴处理后的静置时间对检测结果的影响。结果表明,采用钼蓝比色法测量辣椒粉中还原型维生素C的含量,钼蓝化合物的最佳吸收波长为760nm,EDTA-2Na推荐加入量为0.075g/L,且水浴处理后无需静置。优化后的测定方法得到的维生素C标准曲线R2为0.97,还原型维生素C在0-0.04mg/mL内呈现良好的线性关系。该方法简便、快速、准确,适合批量和少量样品的测定。用此法测得的辣椒粉中还原型维生素C含量为4.12mg/g。
Abstract:
Molybdenum blue spectrometry method was applied to determine the content of reduced-type vitamin C in paprika powder,the influence of absorption spectrum of molybdenum blue complex, addition of EDTA-2Na in oxalic acid solution andwaiting time after water bathing werestudied.Results showed that the optimal absorption spectrum of molybdenum blue complexwas760 nm,the suggestedaddition of EDTA-2Na was 0.075g/L and waitingwas not neededafter water bathing.By applying those optimal conditions, the method had a good linear relationship in the range of 0-0.04 mg/ mLvitamin C with R2at0.97. The method was simple, rapid, accurate as well as suitable for determining batched and smallamount samples. The content of reduction-type vitamin C in paprika powder was 4.12mg/g

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更新日期/Last Update: 1900-01-01
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