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HPLC法测定番茄红素胶束中番茄红素Z/E异构体含量
引用本文:马雪红,刘婷,李传天,朱金芳.HPLC法测定番茄红素胶束中番茄红素Z/E异构体含量[J].新疆农业科学,2022,59(9):2209-2216.
作者姓名:马雪红  刘婷  李传天  朱金芳
作者单位:新疆农业大学食品科学与药学学院,乌鲁木齐 830052
基金项目:国家自然科学基金(31960476)
摘    要:【目的】 测定番茄红素胶束中番茄红素Z/E异构体含量。【方法】 采用HPLC法,色谱柱为YMC Carotenoid S-5(4.6 mm×250 mm);流动相 A:乙腈B:甲基叔丁基醚;线性梯度洗脱;流速:1 mL/min;检测波长:472 nm;柱温:30 ℃,在45 min内完成异构体的分离检测,通过紫外-可见吸收光谱图上的特征峰及吸收强度,分析和鉴定番茄红素胶束中存在的异构体。【结果】 番茄红素在0.22~6.57 μg/mL 线性关系良好(r=0.999);加样回收率为100.06%(RSD=1.99%),该方法专属性强,线性关系良好,快速、准确、简便,适用于番茄红素胶束中异构体的含量测定。【结论】 番茄红素胶束中存在全反式:All-E,以及三个顺式异构体:13 Z,9 Z,5 Z,其平均相对百分含量分别为76.06%、10.83%、4.55%、8.56%。

关 键 词:番茄红素  胶束  异构体  含量测定  
收稿时间:2021-12-15

Determination of Z/E Isomer Content in Lycopene Micelle by HPLC
MA Xuehong,LIU Ting,LI Chuantian,ZHU Jinfang.Determination of Z/E Isomer Content in Lycopene Micelle by HPLC[J].Xinjiang Agricultural Sciences,2022,59(9):2209-2216.
Authors:MA Xuehong  LIU Ting  LI Chuantian  ZHU Jinfang
Institution:College of Food Science and Pharmaceutical Science, Xinjiang Agricultural University, Urumqi 830052, China
Abstract:【Objective】 To determine the content of Z/E isomers in lycopene micelles. 【Method】 HPLC method, The column was YMC Carotenoid S-5(4.6 mm×250 mm); Mobile phase A:acetonitrile B:methyl tert-butyl ether; Linear gradient elution; Flow rate:1 mL/min; Detection wavelength:472 nm; Column temperature:30℃, Complete the separation and detection of isomers within 45 minutes, the isomers in the lycopene micelles are analyzed and identified through the characteristic peaks and absorption intensity on the ultraviolet-visible absorption spectrum.【Result】 The linear ranges of Lycopene was 0.22~6.57 μg/mL (r=0.999), Whose average recoveries were 100.06%(RSD=1.99%). It shows that the method has strong specificity, good linear relationship, fast, accurate and simple, and is suitable for the determination of isomers in lycopene micelles.【Conclusion】 Determined that there are all-trans forms in the lycopene micelles:All-E, and three cis isomers:13Z, 9Z, 5Z.with an average relative percentage of 76.06%,10.83%,4.55%,8.56%, respectively.
Keywords:lycopene  micelles  isomers  content determination  
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