{"id":9476,"date":"2024-06-20T08:50:23","date_gmt":"2024-06-20T00:50:23","guid":{"rendered":"https:\/\/theo.niranbio.com\/l-acide-tartrique\/"},"modified":"2024-08-19T11:25:44","modified_gmt":"2024-08-19T03:25:44","slug":"l-acide-tartrique","status":"publish","type":"product","link":"https:\/\/theo.niranbio.com\/fr\/l-acide-tartrique.html","title":{"rendered":"Acide L-Tartrique"},"content":{"rendered":"

<\/span>Qu’est-ce que l’acide L-tartrique ?<\/span><\/h2>\n

L’acide L-tartrique se pr\u00e9sente sous forme de cristaux translucides incolores ou de poudre cristalline blanche fine \u00e0 grossi\u00e8re, a un go\u00fbt aigre, est facilement soluble dans l’eau et l’\u00e9thanol, mais insoluble dans l’\u00e9ther et le chloroforme.<\/p>\n

L’acide L-tartrique peut \u00eatre utilis\u00e9 comme additif alimentaire et exhausteur de go\u00fbt dans l’industrie alimentaire ; dans le domaine biom\u00e9dical, il peut \u00eatre utilis\u00e9 pour fabriquer des m\u00e9dicaments en raison de ses diverses activit\u00e9s biologiques ; de plus, dans l’industrie cosm\u00e9tique, l’acide L-tartrique peut \u00eatre utilis\u00e9 pour fabriquer des cosm\u00e9tiques en raison de ses propri\u00e9t\u00e9s antioxydantes et hydratantes.<\/p>\n

Les principales sources d’acide L-tartrique sont le vin et le jus de raisin. De plus, certains fruits, l\u00e9gumes et aliments ferment\u00e9s contiennent \u00e9galement de l’acide L(+)-tartrique.<\/p>\n

<\/span>Param\u00e8tres associ\u00e9s :<\/span><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Articles<\/td>\nNormes<\/td>\nR\u00e9sultats<\/td>\n<\/tr>\n
Description du produit<\/td>\nCristaux incolores ou poudre cristalline blanche<\/td>\nConforme<\/td>\n<\/tr>\n
Contenu<\/td>\n99.7~100.5<\/td>\n99.8<\/td>\n<\/tr>\n
Pouvoir rotatoire sp\u00e9cifique [a]D[\uff08\u00b0]- dm2kg-1<\/td>\n+12.0~+13.0<\/td>\n+12.6<\/td>\n<\/tr>\n
Perte au s\u00e9chage<\/td>\n\u22640.5<\/td>\n0.05<\/td>\n<\/tr>\n
R\u00e9sidus d’allumage<\/td>\n\u22640.05<\/td>\n0.02<\/td>\n<\/tr>\n
Sulfate\uff08SO4\uff09<\/td>\nTest r\u00e9ussi<\/td>\nTest r\u00e9ussi<\/td>\n<\/tr>\n
Oxalate<\/td>\nTest r\u00e9ussi<\/td>\nTest r\u00e9ussi<\/td>\n<\/tr>\n
Plomb mg\/kg<\/td>\n\u22642<\/td>\n<2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/span>Dosage recommand\u00e9 :<\/span><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nom de l’aliment<\/td>\nUtilisation maximale (g\/kg)<\/td>\n<\/tr>\n
Menthes<\/td>\n0,8-1,2 g\/kg<\/td>\n<\/tr>\n
Boissons<\/td>\n0,6-1,0 g\/kg<\/td>\n<\/tr>\n
Caf\u00e9<\/td>\n0,5-0,8 g\/kg<\/td>\n<\/tr>\n
Desserts<\/td>\n0,5-1,0 g\/kg<\/td>\n<\/tr>\n
Sauces \u00e0 salade<\/td>\n0,6-1,0 g\/kg<\/td>\n<\/tr>\n
Aliments marin\u00e9s<\/td>\n0,6-1,0 g\/kg<\/td>\n<\/tr>\n
Aliments en conserve<\/td>\n0,6-1,0 g\/kg<\/td>\n<\/tr>\n
Assaisonnements<\/td>\n0,8-1,5 g\/kg<\/td>\n<\/tr>\n
Gel\u00e9e<\/td>\n0,8-1,5 g\/kg<\/td>\n<\/tr>\n
Produits amylac\u00e9s<\/td>\n0,5-1,0 g\/kg<\/td>\n<\/tr>\n
Cr\u00e8me glac\u00e9e<\/td>\n0,6-1,0 g\/kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/span>L’acide L-tartrique a un large \u00e9ventail d’utilisations<\/span><\/h2>\n

<\/span>1. L’industrie alimentaire<\/span><\/h3>\n

Additifs alimentaires : L’acide L-tartrique est souvent utilis\u00e9 dans la transformation des aliments, notamment comme acidifiant et stabilisant dans les boissons, les jus, les bonbons, etc. Pr\u00e9cipitation des prot\u00e9ines : Dans la transformation des aliments, ses propri\u00e9t\u00e9s de pr\u00e9cipitation des prot\u00e9ines peuvent \u00eatre utilis\u00e9es pour aider \u00e0 traiter et am\u00e9liorer la qualit\u00e9 du produit.<\/p>\n

<\/span>2. L’industrie pharmaceutique :<\/span><\/h3>\n

Interm\u00e9diaires pharmaceutiques : utilis\u00e9s comme interm\u00e9diaires dans les processus pharmaceutiques pour aider \u00e0 synth\u00e9tiser et \u00e0 traiter les m\u00e9dicaments, en particulier les ingr\u00e9dients pharmaceutiques qui n\u00e9cessitent une activit\u00e9 optique sp\u00e9cifique.<\/p>\n

<\/span>3. L’industrie du vin :<\/span><\/h3>\n

Cristallisation de l’acide tartrique : Dans la production de vin, l’acide L-tartrique peut cristalliser pour former du tartre, ce qui a un impact important sur la stabilit\u00e9 et la qualit\u00e9 du vin. R\u00e9gulation de l’acidit\u00e9 : R\u00e9gule l’acidit\u00e9 et le go\u00fbt du vin, et joue un r\u00f4le cl\u00e9 dans l’\u00e9quilibre et la persistance de sa saveur.<\/p>\n

<\/span>4. Synth\u00e8se chimique :<\/span><\/h3>\n

Synth\u00e8se organique : Utilis\u00e9 comme catalyseur ou ligand en synth\u00e8se organique, il a un effet catalytique important sur certaines r\u00e9actions chimiques.<\/p>\n

<\/span>5. Industrie de la construction :<\/span><\/h3>\n

Additifs pour ciment : En tant qu’additif pour ciment, il permet de contr\u00f4ler le temps de prise du ciment et d’am\u00e9liorer sa durabilit\u00e9. Mat\u00e9riaux de construction : utilis\u00e9s pour ajuster la vitesse de durcissement et la r\u00e9sistance du b\u00e9ton et am\u00e9liorer les performances et la stabilit\u00e9 des mat\u00e9riaux de construction.<\/p>\n

<\/span>Question pos\u00e9e par l’utilisateur<\/span><\/h2>\n

Question : Quelle est la diff\u00e9rence entre l\u2019acide L-tartrique et l\u2019acide DL-tartrique ?<\/strong><\/p>\n

R\u00e9ponse : L’acide DL-tartrique et l’acide L-tartrique sont deux compos\u00e9s ayant des structures chimiques similaires mais des activit\u00e9s optiques diff\u00e9rentes. Le m\u00e9lange d’acide D-tartrique et d’acide L-tartrique est l’acide DL-tartrique. Les structures chimiques de ces deux isom\u00e8res sont les m\u00eames, mais leurs st\u00e9r\u00e9ostructures sont sym\u00e9triques en miroir. Le rapport entre l’acide D-tartrique et l’acide L-tartrique est \u00e9gal, donc l’acide DL-tartrique a une rotation optique, mais sa rotation optique est nulle.<\/p>\n

En revanche, l’acide L-tartrique ne contient qu’un seul \u00e9nantiom\u00e8re, l’isom\u00e8re gauche. Ce compos\u00e9 a une rotation optique et sa rotation optique est n\u00e9gative. L’activit\u00e9 m\u00e9tabolique de l’acide L-tartrique dans le corps est \u00e9galement diff\u00e9rente de celle de l’acide D-tartrique. Par exemple, l’acide L-tartrique peut participer au m\u00e9tabolisme \u00e9nerg\u00e9tique, tandis que l’acide D-tartrique est utilis\u00e9 pour fabriquer des m\u00e9dicaments et des additifs alimentaires.<\/p>\n","protected":false},"excerpt":{"rendered":"

    \n
  • CAS : 87-69-4<\/li>\n
  • Formule chimique: C4<\/sub>H6<\/sub>O6<\/sub><\/li>\n
  • Certifications : KOSHER, ISO, HALAL, FSSC 22000, BRC, etc.<\/li>\n
  • Quantit\u00e9 minimum de commande : 1000 kg<\/li>\n
  • Dur\u00e9e de conservation : 2 ans<\/li>\n<\/ul>\n","protected":false},"featured_media":9477,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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