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中国农学通报 ›› 2015, Vol. 31 ›› Issue (21): 264-267.doi: 10.11924/j.issn.1000-6850.2014-1195

所属专题: 生物技术 园艺

• 食品 营养 检测 安全 • 上一篇    下一篇

酶联免疫法测定辣椒中辣椒素含量

杨东顺   

  1. 云南省农科院质标所
  • 收稿日期:2014-04-23 修回日期:2015-04-14 接受日期:2015-04-24 出版日期:2015-07-28 发布日期:2015-07-28
  • 通讯作者: 杨东顺
  • 基金资助:
    国家蔬菜产品质量安全风险评估重大专项(GJFP 2014001)。

Determination of Capsaicin Contents in Capsicum annuum L. Samples by Enzyme Immunoassay

  • Received:2014-04-23 Revised:2015-04-14 Accepted:2015-04-24 Online:2015-07-28 Published:2015-07-28

摘要: 旨在建立一种简便快速低成本的辣椒素测定方法。辣椒样品中辣椒素经69.15%乙醇,振摇10min,离心5min,取上清液100μL,置于2.0mL样品瓶中,加0.9mL去离子水,旋涡混匀后用于酶标仪分析。结果表明:标准曲线满足线性方程Y=-42.9X+30.3,相关系数R2=0.9999;在100mg/100g添加水平下,平均回收率测为92.6%,重复性相对标准偏差小于3.5%;方法检出限为0.25mg/100g。300余份新鲜辣椒样品中辣椒素含量测定结果在1.50~323.8mg/100g之间。采用酶联免疫法测定辣椒中的辣椒素含量,有操作简单、测定速度快等优点,尤其适合批量样品的测定。

关键词: 产量, 产量

Abstract: The aim was to establish a simple, quick and cheap method for detecting capsaicin. The capsaicin was extracted by 69.15% ethanol, shaken for 10 min, centrifuged for 5 min, then the upper solution of 100 μL was collected to 2.0 mL sample bottle with mixture of 0.9 mL deionized water. The mixture was analyzed by Enzyme- labelled meter. The results showed that the standard curve meet the linear regression equation Y=-42.9X+30.3, and the correlation coefficient R2 was 0.9999. At the 100 mg/100 g adding level, the average recovery of capsaicin was 92.6%, and the repeatability with relative standard deviation (RSD) was lower than 3.5% . The minimum detection limit was 0.25 mg/100 g. Concentration of capsaicin in more than 300 fresh Capsicum annuum L. samples ranged from 1.50 mg/100 g to 323.8 mg/100 g. The method is simple, rapid and especially suitable for analyzing large number of samples.