正相高效液相色谱测定万寿菊中玉米黄质和叶黄素方法研究
2021-06-17王红梅张琳
王红梅 张琳



摘要 [目的]建立正相高效液相色谱(NP-HPLC)同时测定万寿菊中玉米黄质和叶黄素含量的方法。[方法]色谱柱Inertsil SIL-100A(4.6 mm×250 mm,3 μm),流动相为正己烷∶乙酸乙酯=70∶30(V∶V),检测波长446 nm,柱温30 ℃。[结果]玉米黄质在5~50 μg/mL呈线性关系(r=0.997),加标回收率为97.5%(n=5),检出限为0.055 μg/mL;叶黄素在10~100 μg/mL呈线性关系(r=0.999),加标回收率为97.3%(n=5),检出限为0.085 μg/mL。[结论]建立的正相HPLC方法快速、稳定,能够为检测万寿菊中叶黄素和玉米黄质含量提供有效方法。
关键词 正相高效液相色谱;叶黄素;玉米黄质;万寿菊
中图分类号 R284.2文献标识码 A文章编号 0517-6611(2021)02-0186-03
doi:10.3969/j.issn.0517-6611.2021.02.050
开放科学(资源服务)标识码(OSID):
Determination of Zeaxanthin and Lutein in Marigold by Normal Phase HPLC
WANG Hongmei1,ZHANG Lin2
(1.Tianjin Rianlon Corporation,Tianjin 300384;2.School of Chinese Materia Medica,Tianjing Univerisity of Traditional Chinese Medicine,Tianjin 301617)
Abstract [Objective] To establish a method for the simultaneous determination of lutein and zeaxanthin in marigold by normal phase high performance liquid chromatography (NPHPLC). [Method]The column, Inertsil SIL100A (4.6 mm × 250 mm, 3 μm), mobile phase, nHexane∶ethyl acetate = 70∶30 (V∶V), detection wavelength 446 nm, column oven temperature 30 ℃. [Result]Zeaxanthin showed a linear relationship between 5-50 μg/mL (r = 0.997), the recovery rate was 97.5% (n=5), the detection limit was 0.055 μg/mL, lutein showed a linear relationship between 10-100 μg/mL (r = 0.999), the recovery rate was 97.3% (n= 5), the detection limit was 0.085 μg/mL. [Conclusion] The established HPLC method is rapid and stable, and can provide an effective method for the determination of lutein and zeaxanthin in marigold.
Key words NPHPLC;Lutein;Zeaxanthin;Marigold
葉黄素(lutein)和玉米黄质(zeaxanthin)为天然的植物色素,多存在于植物果实、蔬菜、花卉及藻类植物中,属于较为基本的天然色素,具有提高人和动物免疫力以及抗氧化的作用。叶黄素能够预防眼睛的视网膜黄斑,延缓失明症和视力退化等眼部的疾病。近年来研究表明,叶黄素具有调节动物免疫力、加强巨噬细胞活性、遏制肿瘤等功能[1-4]。玉米黄质也具有抗氧化性,分子中含多个共轭双键,可阻断自由基的链式传递。在生物体中,虽然玉米黄质不能转化成为维生素A,不具其活性,但也是人体可直接利用的强抗氧化剂。同时玉米黄质的化学结构中带有羟基,增强了其抗氧化能力。人体中,叶黄素和玉米黄质主要分布在肝脏、肾脏、胰脏、卵巢、眼、脾脏等组织器官中,并且人体和动物均不能自身合成2种物质,只能通过摄取食物或相关制剂获得。叶黄素和玉米黄质的食物来源主要有黄玉米、橙汁、桃子和鸡蛋黄等[5-8]。……
