{"id":55072,"date":"1999-06-01T00:00:00","date_gmt":"2018-12-04T05:54:53","guid":{"rendered":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/phenolic-composition-of-kiwifruit-juice\/"},"modified":"2018-12-04T06:54:53","modified_gmt":"2018-12-04T05:54:53","slug":"phenolic-composition-of-kiwifruit-juice","status":"publish","type":"resume","link":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/phenolic-composition-of-kiwifruit-juice\/","title":{"rendered":"Phenolic composition of kiwifruit juice"},"content":{"rendered":"

Phenolic compounds in kiwifruit pulp were separated and characterized by reversed-phase HPLC, and the effect of juice processing on the phenolic composition was studied. Fractionation of phenolic compounds was achieved through selective elution from C-18 cartridges prior to preconcentration and subsequent separation by HPLC. Strongly acidic compounds were identified as derivatives of coumaric and caffeic acids, including chlorogenic acid, protocatechuic acid, and a derivative of 3,4-dihydroxybenzoic acid. The weakly acidic fraction contained epicatechin, catechin, and procyanidins (B3, B2, or B4 and oligomers). Flavonols were present as the glycosides of quercetin (glucoside, rhamnoside, and rutinoside) and kaempferol (rhamnoside and rutinoside). Phenolic compounds were present, at levels of <1-7 mg\/L, in clarified juice. The concentration of phenolics was highest after high-temperature short-time treatment (HTST) of juice. Hydrolysis of hydroxycinnamic acids occurred after enzyme addition and HTST treatment. The flavonol glycoside composition is the best identifier of kiwifruit juice.<\/p>\n","protected":false},"template":"","mots_cles":[],"class_list":["post-55072","resume","type-resume","status-publish","hentry"],"acf":{"adresse":"DAWES HM,HORT & FOOD RES INST NEW ZEALAND LTD;PRIVATE BAG 92 169; NEW ZEALAND. hdawes@hort.cri.nz","annee":"1999","mois":"6","numero":"47:6","page":"2398-2403","auteurs":[{"ID":55070,"post_author":"0","post_date":"2018-12-04 06:54:51","post_date_gmt":"2018-12-04 05:54:51","post_content":"","post_title":"Dawes","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"dawes","to_ping":"","pinged":"","post_modified":"2018-12-04 06:54:51","post_modified_gmt":"2018-12-04 05:54:51","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/dawes\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":55071,"post_author":"0","post_date":"2018-12-04 06:54:52","post_date_gmt":"2018-12-04 05:54:52","post_content":"","post_title":"Keene","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"keene","to_ping":"","pinged":"","post_modified":"2018-12-04 06:54:52","post_modified_gmt":"2018-12-04 05:54:52","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/keene\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"}],"sources":[{"ID":1648,"post_author":"0","post_date":"2018-12-03 16:01:16","post_date_gmt":"2018-12-03 15:01:16","post_content":"","post_title":"Journal of agricultural and food chemistry","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"journal-of-agricultural-and-food-chemistry","to_ping":"","pinged":"","post_modified":"2018-12-03 16:01:16","post_modified_gmt":"2018-12-03 15:01:16","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/source\/journal-of-agricultural-and-food-chemistry\/","menu_order":0,"post_type":"source","post_mime_type":"","comment_count":"0","filter":"raw"}]},"yoast_head":"\nPhenolic composition of kiwifruit juice - 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