{"id":134,"date":"2010-09-23T14:04:33","date_gmt":"2010-09-23T14:04:33","guid":{"rendered":"http:\/\/infos.orchidali.com\/?p=134"},"modified":"2023-02-09T11:23:09","modified_gmt":"2023-02-09T10:23:09","slug":"nouvelle-methode-dencapsulation-des-omega-3","status":"publish","type":"post","link":"https:\/\/science-nutrition.com\/en\/2010\/09\/23\/nouvelle-methode-dencapsulation-des-omega-3\/","title":{"rendered":"Nouvelle m\u00e9thode d\u2019encapsulation des om\u00e9ga-3"},"content":{"rendered":"<div class=\"l-subsection\"><div class=\"l-subsection-h\"><div class=\"l-subsection-hh g-html i-cf\"><p>Des chercheurs espagnols (Spanish Council for Scientific Research) ont d\u00e9velopp\u00e9 une nouvelle voie pour stabiliser les nutraceutiques \u00e0 base d\u2019om\u00e9ga-3 via une technique d\u2019encapsulation par de la z\u00e9ine \u00ab \u00e9lectropulv\u00e9ris\u00e9e \u00bb. La z\u00e9ine est une prot\u00e9ine, de type prolamine, du grain de ma\u00efs. Cette technique appel\u00e9e \u00ab electrospinning \u00bb permet de former des capsules de z\u00e9ine ultra-minces contenant du DHA (acide docosahexa\u00e9noique) et pr\u00e9sentant un taux d\u2019oxydation des acides gras om\u00e9ga-3 r\u00e9duit de 2,5 fois.<\/p>\n<p>La concentration la plus efficace de z\u00e9ine est celle pr\u00e9sentant un ratio 3 : 1 (z\u00e9ine : DHA). Les r\u00e9actions oxydatives de d\u00e9t\u00e9rioration sont r\u00e9duites et la stabilit\u00e9 chimique est ainsi augment\u00e9e (par exemple : lib\u00e9ration r\u00e9duite d\u2019off-flavours). Cette technique permet le remplacement de la traditionnelle capsule de g\u00e9latine.<\/p>\n<p>Les capsules ultra-minces de z\u00e9ine ont un potentiel dans la conception de nouveaux aliments fonctionnels ou de strat\u00e9gies d\u2019emballages bioactifs pour augmenter la stabilit\u00e9 des ingr\u00e9dients fonctionnels. Les techniques de stabilisation des om\u00e9ga-3 se sont multipli\u00e9es r\u00e9cemment : encapsulation par la z\u00e9ine, microencapsulation par le pollen, stabilisation par des antioxydants\u2026 Il reste \u00e0 d\u00e9montrer laquelle est potentiellement la plus efficace.<\/p>\n<p>Source principale: \u00ab Stabilization of a nutraceutical omega-3 fatty acid by encapsulation in advance ultrathin electrosprayed zein prolamine \u00bb\/ Torres-Giner S. et al. in Journal of Food Science (2010) \u2013 Nanoscale Food Science<\/p>\n<\/div><\/div><\/div><!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Des chercheurs espagnols (Spanish Council for Scientific Research) ont d\u00e9velopp\u00e9 une nouvelle voie pour stabiliser les nutraceutiques \u00e0 base d\u2019om\u00e9ga-3 via une<!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39,27],"tags":[90],"class_list":["post-134","post","type-post","status-publish","format-standard","hentry","category-qualite-nutritionnelle","category-recherche","tag-omega-3"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - 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