基于GC—MS的浒苔代谢产物提取方法研究
2017-07-13何艳丽王延辉陈方园孙平飞徐年军
何艳丽 王延辉 陈方园 孙平飞 徐年军



摘要 [目的]研究浒苔代谢产物的提取方法。[方法]以浒苔为研究对象,用不同的细胞破碎方式、溶剂提取体系、料液比等对均一样本的代谢产物进行提取,气相色谱-质谱法(GC-MS)鉴定代谢产物成分,利用主成分分析等方法,对不同的代谢提取体系进行评价。[结果]溶剂体系甲醇-三氯甲烷-水(7∶3∶3)和液氮处理-球磨破碎-超声波的破壁方法提取并鉴定出81种代谢产物,该方法具有高提取产率、高重现性、易操作和速度快等优点。[结论]溶剂体系甲醇-三氯甲烷-水(7∶3∶3)和液氮处理-球磨破碎-超声波破壁是适合浒苔代谢物提取的方法,该方法可为浒苔及大型绿藻的代谢组学研究提供参考。
关键词 浒苔;提取方法;气相色谱-质谱;代谢产物
中图分类号 S986.2 文献标识码 A 文章编号 0517-6611(2017)13-0072-04
Metabolite Profiling of Seaweed Enteromorpha Using Gas Chromatography-Mass Spectrometry
HE Yan-li1,2, WANG Yan-hui1, CHEN Fang-yuan1, XU Nian-jun2* et al
(1. School of Pharmaceutical Engineering, Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100; 2. School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211)
Abstract [Objective] To study the extraction method of Enteromorpha metabolites. [Method] Enteromorpha as the research object, using different cell crushing methods, solvent extraction system, solid-liquid ratio, the homogeneous sample metabolites were extracted; the metabolites were identificated by GC-MS; using principal component analysis method, different metabolic extraction systems were evaluated. [Result] A total of 81 metabolites were extracted and identified by the solvent system of methanol∶chloroform∶water (7∶3∶3) and liquid nitrogen treatment-milling-ultrasonic breaking method, showing high extraction yield, high reproducibility, easy operation and fast and other characteristics. [Conclusion] It is a suitable method for extracting metabolites of Enteromorpha which can provide reference for metabonomics study of Enteromorpha and large green algae.
Key words Enteromorpha;Extraction method;GC-MS;Metabolite
滸苔(Enteromorpha)亦称苔条、苔菜,属绿藻纲石莼科,为大型海洋绿藻,广温、广盐、耐干旱,在我国近海广泛分布。在适合条件下容易出现爆发型增殖,给水产养殖造成严重困扰,其生态危害受到广泛关注。同时浒苔又有较高的营养价值,浒苔“烧末吹鼻止衄血,汤浸捣敷手背肿痛”,具有软坚散结、化痰消积、解毒消肿等作用;浒苔富含蛋白质、纤维素、碳水化合物和维生素等营养成分,在日韩等国家作为中高档的佐料消费[1],且价格昂贵。
浒苔在近海中的绿潮爆发极具规律:每年4、5月份在山东、江苏、浙江等局部海域爆发,爆发期间对当地水产养殖造成极大损失[2],对近海环境也产生不良影响,而其他时间附近海域则较少出现。……
