{"id":5112,"date":"2024-08-04T17:21:51","date_gmt":"2024-08-04T17:21:51","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=5112"},"modified":"2024-08-04T17:21:51","modified_gmt":"2024-08-04T17:21:51","slug":"dispersiveliquid-liquid","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/fr\/dispersiveliquid-liquid\/","title":{"rendered":"Microextraction liquide-liquide assist\u00e9e par ultrasons, chromatographie en phase gazeuse et spectrom\u00e9trie de masse pour l'analyse des composants aromatiques de la ros\u00e9e"},"content":{"rendered":"<p>L'eau de rose est un sous-produit produit au cours du processus de distillation et d'extraction de l'huile essentielle de rose, et son rendement est beaucoup plus \u00e9lev\u00e9 que celui de l'huile essentielle de rose ; le liquide cellulaire de la fleur fra\u00eeche de rose est un liquide form\u00e9 par la condensation de substances volatiles dans les cellules de la fleur fra\u00eeche de rose dans des conditions de basse temp\u00e9rature, avec le parfum floral naturel des fleurs de rose. Dans le pr\u00e9sent article, l'eau de rose et le liquide cellulaire de rose sont d\u00e9sign\u00e9s collectivement par l'expression \"ros\u00e9e de rose\". La ros\u00e9e contient des ingr\u00e9dients naturels et purs, y compris des traces d'huile essentielle de rose et d'autres composants hydrosolubles. Elle a un parfum l\u00e9ger et agr\u00e9able et a des fonctions telles que la lutte contre les allergies, l'antibact\u00e9rien, l'anti-inflammatoire, le soulagement du vieillissement de la peau, la reconstitution de l'hydratation de la peau et l'am\u00e9lioration de la vitalit\u00e9 de la peau. Il peut \u00eatre utilis\u00e9 dans la recherche et le d\u00e9veloppement de boissons \u00e0 la rose, de liquides oraux \u00e0 la rose et d'autres produits. Il s'agit d'une mati\u00e8re premi\u00e8re importante pour l'alimentation, les cosm\u00e9tiques et les produits de rafra\u00eechissement, et sa valeur de d\u00e9veloppement et d'utilisation est \u00e9lev\u00e9e. Les composants aromatiques de la ros\u00e9e sont des indicateurs cl\u00e9s du d\u00e9veloppement et de l'utilisation des produits, qui peuvent refl\u00e9ter les changements de qualit\u00e9 au cours du traitement, de la production, du stockage et du transport, et constituent \u00e9galement la base principale pour d\u00e9terminer la qualit\u00e9 de la ros\u00e9e. Par cons\u00e9quent, la compr\u00e9hension et la ma\u00eetrise de la composition et de la teneur en composants aromatiques du jus de rose rev\u00eatent une grande importance pour le traitement et l'utilisation rationnels du jus de rose.<br \/>\nLa microextraction liquide-liquide par dispersion (DLLME) est une nouvelle technique de microextraction en phase liquide propos\u00e9e par Rezaee et al. qui est bas\u00e9e sur la formation de petites gouttelettes dispers\u00e9es dans la solution de l'\u00e9chantillon par l'agent d'extraction sous l'action du dispersant, formant un syst\u00e8me d'\u00e9mulsion triphasique de l'agent d'extraction, du dispersant et de la solution de l'\u00e9chantillon. Cela augmente la surface de contact entre l'extractant et l'analyte cible, ce qui permet \u00e0 l'analyte cible d'atteindre rapidement l'\u00e9quilibre de distribution entre la solution de l'\u00e9chantillon et l'extractant et d'achever l'extraction. Cette technologie int\u00e8gre l'extraction et la concentration et pr\u00e9sente les avantages suivants : simplicit\u00e9, rapidit\u00e9, faible co\u00fbt, faible pollution et facteur d'enrichissement \u00e9lev\u00e9. Elle a \u00e9t\u00e9 appliqu\u00e9e dans de nombreux domaines tels que la s\u00e9curit\u00e9 alimentaire, l'analyse des m\u00e9dicaments et la pollution de l'environnement. Cependant, il n'existe actuellement aucun rapport sur l'utilisation de la technologie de microextraction liquide-liquide dispers\u00e9e pour enrichir les composants aromatiques de la ros\u00e9e.<br \/>\nCette \u00e9tude a utilis\u00e9 la technique DLLME-GC-MS pour analyser les composants aromatiques des p\u00e9tales de rose et a optimis\u00e9 les param\u00e8tres exp\u00e9rimentaux pour la microextraction liquide-liquide en dispersion. L'objectif est de fournir un soutien technique pour l'\u00e9tude des composants aromatiques des p\u00e9tales de rose et une base th\u00e9orique pour leur d\u00e9veloppement, leur utilisation et le contr\u00f4le de la qualit\u00e9 des produits.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5113\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-119.png\" alt=\"\" width=\"357\" height=\"228\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5114\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-105.png\" alt=\"\" width=\"354\" height=\"237\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-105.png 354w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-105-325x217.png 325w\" sizes=\"(max-width: 354px) 100vw, 354px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5115\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-99.png\" alt=\"\" width=\"368\" height=\"190\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5116\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-88.png\" alt=\"\" width=\"357\" height=\"248\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5117\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-81.png\" alt=\"\" width=\"357\" height=\"256\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5118\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-73.png\" alt=\"\" width=\"756\" height=\"381\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5119\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-66.png\" alt=\"\" width=\"780\" height=\"228\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-66.png 780w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-66-768x224.png 768w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5120\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-61.png\" alt=\"\" width=\"781\" height=\"767\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-61.png 781w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-61-768x754.png 768w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-61-733x720.png 733w\" sizes=\"(max-width: 781px) 100vw, 781px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5121\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-55.png\" alt=\"\" width=\"779\" height=\"685\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-55.png 779w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-55-768x675.png 768w\" sizes=\"(max-width: 779px) 100vw, 779px\" \/><\/p>\n<p>Une m\u00e9thode a \u00e9t\u00e9 \u00e9tablie pour analyser les composants aromatiques de l'eau am\u00e8re de ros\u00e9e en utilisant la microextraction liquide-liquide assist\u00e9e par ultrasons combin\u00e9e \u00e0 la technologie de la chromatographie en phase gazeuse et de la spectrom\u00e9trie de masse. Les param\u00e8tres optimis\u00e9s pour la m\u00e9thode de microextraction liquide-liquide sont les suivants : volume d'\u00e9chantillon de 7,0 ml, dur\u00e9e d'extraction assist\u00e9e par ultrasons de 3 minutes, agent d'extraction et dosage de 200 \u03bc L de dichlorom\u00e9thane, dispersant d'ac\u00e9tonitrile, et rapport de volume entre l'agent d'extraction et le dispersant de 1:2. Sous des param\u00e8tres optimis\u00e9s, un total de 62 composants aromatiques a \u00e9t\u00e9 identifi\u00e9 dans la ros\u00e9e, dont 52 dans l'eau de cellule de rose, 42 dans l'eau de rose, 46 dans l'eau de fleur fra\u00eeche et 47 dans l'eau de fleur saumur\u00e9e. Les composants aromatiques dont la teneur est relativement \u00e9lev\u00e9e comprennent le citronellol, l'hydroxycitronellol, l'eug\u00e9nol, le linalol, l'\u03b1 - terpin\u00e9ol, le ph\u00e9nyl\u00e9thanol, le n\u00e9rol, le g\u00e9raniol, le m\u00e9thyl eug\u00e9nol, etc. Il existe des diff\u00e9rences dans la teneur relative et la composition des composants aromatiques du liquide cellulaire de rose, de l'eau de rose obtenue par diff\u00e9rentes techniques de traitement et de l'eau de rose provenant de diff\u00e9rents fabricants. Les r\u00e9sultats exp\u00e9rimentaux fournissent une base th\u00e9orique pour l'\u00e9tude et le d\u00e9veloppement de l'ar\u00f4me caract\u00e9ristique de la ros\u00e9e. La technologie de microextraction liquide-liquide dispers\u00e9e est utilis\u00e9e pour l'extraction des composants aromatiques de la ros\u00e9e, qui pr\u00e9sente les avantages d'une op\u00e9ration simple, d'un faible co\u00fbt, d'un facteur d'enrichissement \u00e9lev\u00e9 et d'une bonne reproductibilit\u00e9. Elle peut \u00eatre utilis\u00e9e pour la d\u00e9termination et l'analyse de grandes quantit\u00e9s d'\u00e9chantillons de ros\u00e9e.<\/p>","protected":false},"excerpt":{"rendered":"<p>Rose water is a byproduct produced during the distillation and extraction process of rose essential oil, and its yield is much higher than that of rose essential oil; Rose fresh flower cell fluid is a liquid formed by the condensation of volatile substances in rose fresh flower cells under low temperature conditions, with the natural [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ultrasonic assisted liquid-liquid microextraction gas chromatography\/mass spectrometry analysis of aroma components in rose dew - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/fr\/dispersiveliquid-liquid\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ultrasonic assisted liquid-liquid microextraction gas chromatography\/mass spectrometry analysis of aroma components in rose dew - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Rose water is a byproduct produced during the distillation and extraction process of rose essential oil, and its yield is much higher than that of rose essential oil; 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