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Discrimination of Chuanminshen violaceum Sheh et Shen from different regions based on fatty acid profiles of roots and leaves

查看全文 作　　者：Qing [1]Zhang;Junrui [1]Tian;Chong [1]Wan;Hongmin [2]Dong;Dingtao [1]Wu;Shuxiang [1]Liu;Wen [2]Qin 高影响力作者 机构地区：[1]College of Food Science,Sichuan Agricultural University,No.46,Xinkang Road,Ya’an 625014,Sichuan,China;[2]Department of Agricultural,Food and Nutritional Science,University of Alberta,Edmonton,Alberta T6G 2P5,Canada高影响力机构 出　　处：《Food Quality and Safety》索引2020年第4卷第2期,共10页高影响力期刊 基　　金：This work was supported financially by the Education Department of Sichuan Province under Grant 17ZA0304. 摘　　要：Objectives:The purpose of this paper was to construct a reliable methodology to discriminate the geographical origins of Chuanminshen violaceum Sheh et Shan planted in different regions in Sichuan,China.Materials and methods:Fatty acid profiles of roots and leaves of C.violaceum planted in various regions of Sichuan Province in China,namely Guangyuan(GY),Langzhong(LZ),Jintang(JT),Bazhong(BZ),and Shuangling(SL),were determined using GC-MS followed by multivariate statistical analyses,including orthogonal partial least-squares discriminant analysis and hierarchical clustering analysis.Results:Leaves of C.violaceum showed the highest contents of hexadecatrienoic acid(3.21 g/kg),linoleic acid(6.62 g/kg),andα-linolenic acid(7.24 g/kg),which were all higher than those contained in roots.Chuanminshen violaceum samples collected from LZ,JT,and GY could be clearly distinguished based on fatty acid profiles of leaves and those collected from LZ,GY,and BZ could be clearly distinguished based on fatty acid profiles of roots.Conclusions:Chemometric method is used as a potential approach for analyses of fatty acid profiles of roots and leaves to control the quality of C.violaceum and their powered products. 关 键 词：Chuanminshen violaceum Sheh et Shan fatty acid profiles geographical discrimination orthogonal partial least-squares discriminant analysis hierarchical clustering analysis
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