{"id":49977,"date":"2005-08-01T00:00:00","date_gmt":"2018-12-04T04:07:24","guid":{"rendered":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/effects-of-food-processing-on-blueberry-antiproliferation\/"},"modified":"2018-12-04T05:07:24","modified_gmt":"2018-12-04T04:07:24","slug":"effects-of-food-processing-on-blueberry-antiproliferation","status":"publish","type":"resume","link":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/effects-of-food-processing-on-blueberry-antiproliferation\/","title":{"rendered":"Effects of food processing on blueberry antiproliferation and antioxidant activity"},"content":{"rendered":"

Cultivated highbush (Vaccinium corymbosum L.) and wild lowbush (Vaccinium angustifolium Ait.) blueberries are excellent sources of phytochemicals that are believed to have significant biological activity. The objective of this study was to determine whether incorporation of blueberries into food products affects their phenolic content or antioxidant and antiproliferation activity. Several blueberry fruit-containing products including fresh, individually quick frozen (IQF), freeze-dried, spray-dried, heat-dried, cooked, juice concentrate, pie filling, and jam were fractionated to remove sugars and isolate groups of phytochemicals based on solubility. The fractions were analyzed for total phenolics and assayed for ferric reducing antioxidant power (FRAP) antioxidant activity, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, and hepa-1c1c7 antiproliferative activities. For both cultivated and wild berries, fresh and IQF berries had the highest total phenols, antioxidant activity, and and proliferation activity. Whole freeze-dried wild blueberries also retained significant antiproliferative activity in 2 fractions eluted with acetone (fraction 4, 4% of control cell growth at 20 mu g\/mL) and 50% aqueous acetone (fraction 5, 69% of control cell growth at 20 mu g\/mL) and ranked close to the activities recorded for fresh (30% of control cell growth at 20 mu g\/mL for fraction 5) and IQF whole fruit (27% of control cell growth at 20 mu g\/mL for fraction 5). Products that were heat-processed retained most of the antioxidant activity and total phenolics found in unprocessed whole fruit. However, the heat-treated products lacked or had diminished antiproliferation activity, suggesting that although products may be high in phenolic compounds and antioxidant activity, some forms of bioactivity may be compromised by harsh processing methods.<\/p>\n","protected":false},"template":"","mots_cles":[],"class_list":["post-49977","resume","type-resume","status-publish","hentry"],"acf":{"adresse":"Addresses: Lila MA (reprint author), Univ Illinois, Dept Nat Resources & Environm Sci, 1201 S Dorner Dr, Urbana, IL 61801 USA\r\nUniv Illinois, Dept Nat Resources & Environm Sci, Urbana, IL 61801 USA\r\nUniv Illinois, Dept Food Sci & Human Nutr, Urbana, IL 61801 USA \r\nE-mail Addresses: imagemal@uiuc.edu \r\n\r\nPublisher: INST FOOD TECHNOLOGISTS, 525 WEST VAN BUREN, STE 1000, CHICAGO, IL 60607-3814 USA, http:\/\/www.ift.org \r\nDiscipline: FOOD SCIENCE\/NUTRITION\r\n\r\n","annee":"2005","mois":"8","numero":"70:6","page":"S389-S394","auteurs":[{"ID":15350,"post_author":"0","post_date":"2018-12-03 19:24:12","post_date_gmt":"2018-12-03 18:24:12","post_content":"","post_title":"John W Erdman","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"john-w-erdman","to_ping":"","pinged":"","post_modified":"2018-12-03 19:24:12","post_modified_gmt":"2018-12-03 18:24:12","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/john-w-erdman\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":49976,"post_author":"0","post_date":"2018-12-04 05:07:22","post_date_gmt":"2018-12-04 04:07:22","post_content":"","post_title":"Schmidt","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"schmidt-2","to_ping":"","pinged":"","post_modified":"2018-12-04 05:07:22","post_modified_gmt":"2018-12-04 04:07:22","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/schmidt-2\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":18680,"post_author":"0","post_date":"2018-12-03 20:11:19","post_date_gmt":"2018-12-03 19:11:19","post_content":"","post_title":"Mary Ann Lila","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"mary-ann-lila","to_ping":"","pinged":"","post_modified":"2018-12-03 20:11:19","post_modified_gmt":"2018-12-03 19:11:19","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/mary-ann-lila\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"}],"sources":[{"ID":8286,"post_author":"0","post_date":"2018-12-03 17:58:25","post_date_gmt":"2018-12-03 16:58:25","post_content":"","post_title":"Journal of food science","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"journal-of-food-science","to_ping":"","pinged":"","post_modified":"2018-12-03 17:58:25","post_modified_gmt":"2018-12-03 16:58:25","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/source\/journal-of-food-science\/","menu_order":0,"post_type":"source","post_mime_type":"","comment_count":"0","filter":"raw"}]},"yoast_head":"\nEffects of food processing on blueberry antiproliferation and antioxidant activity - 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