{"id":53446,"date":"2003-11-01T00:00:00","date_gmt":"2018-12-04T05:19:18","guid":{"rendered":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/optimization-of-a-new-mobile-phase-to-know-the-complex-and-real\/"},"modified":"2018-12-04T06:19:18","modified_gmt":"2018-12-04T05:19:18","slug":"optimization-of-a-new-mobile-phase-to-know-the-complex-and-real","status":"publish","type":"resume","link":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/optimization-of-a-new-mobile-phase-to-know-the-complex-and-real\/","title":{"rendered":"Optimization of a new mobile phase to know the complex and real polyphenolic composition: towards a total phenolic index using high-performance liquid chromatography"},"content":{"rendered":"

An HPLC method is reported for the separation and quantification of five major polyphenolic groups found in fruits and related products: single ring phenolic acids (hydroxybenzoic acid and hydroxycinnamic acid derivatives), flavan-3-ols, flavonols, anthocyanins, and dihydrochalcones. A binary mobile phase consisting of 6% acetic acid in 2 mM sodium acetate aqueous solution (v\/v, final pH 2.55) (solvent A) and acetonitrile (solvent B) was used. The use of sodium acetate was new and key to the near baseline separation of 25 phenolics commonly found in fruits. A photodiode array detector was used and data were collected at four wavelengths (280, 320, 360, and 520 nm). This method was sensitive and gave good separation of polyphenolics in apple, cherry, strawberry, blackberry, grape, apple juice, and a processing by-product. The improved separation has led to better understanding of the polyphenolic profiles of these fruits. Individual as well as total phenolic content was obtained, and the latter was close to and correlated well with that obtained by the Folin-Ciocalteu method (FC). The HPLC data can be used as a total phenolic index (TPI) for quantification of fruit phenolics, which is advantageous over the FC because it has more information on individual compounds.<\/p>\n","protected":false},"template":"","mots_cles":[],"class_list":["post-53446","resume","type-resume","status-publish","hentry"],"acf":{"adresse":"Food Research Program, Agriculture & Agri-Food Canada, 93 Stone Road West, Guelph, Ont., N1G 5C9 Canada. caor@agr.gc.ca","annee":"2003","mois":"11","numero":"1018:1","page":"29-40","auteurs":[{"ID":50521,"post_author":"0","post_date":"2018-12-04 05:17:56","post_date_gmt":"2018-12-04 04:17:56","post_content":"","post_title":"Tsao","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"tsao","to_ping":"","pinged":"","post_modified":"2018-12-04 05:17:56","post_modified_gmt":"2018-12-04 04:17:56","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/tsao\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":21414,"post_author":"0","post_date":"2018-12-03 20:49:27","post_date_gmt":"2018-12-03 19:49:27","post_content":"","post_title":"Ray-Yu Yang","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"ray-yu-yang","to_ping":"","pinged":"","post_modified":"2018-12-03 20:49:27","post_modified_gmt":"2018-12-03 19:49:27","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/ray-yu-yang\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"}],"sources":[{"ID":53445,"post_author":"0","post_date":"2018-12-04 06:19:18","post_date_gmt":"2018-12-04 05:19:18","post_content":"","post_title":"JOURNAL OF CHROMATOGRAPHY A","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"journal-of-chromatography-a-2","to_ping":"","pinged":"","post_modified":"2018-12-04 06:19:18","post_modified_gmt":"2018-12-04 05:19:18","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/source\/journal-of-chromatography-a-2\/","menu_order":0,"post_type":"source","post_mime_type":"","comment_count":"0","filter":"raw"}]},"yoast_head":"\nOptimization of a new mobile phase to know the complex and real polyphenolic composition: towards a total phenolic index using high-performance liquid chromatography - 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