tunisieRepublique Tunisienne
Ministère de l'Industrie, des Mines et de l’Energie
  • arabe
  • francais
  • anglais
Flux RSS ONM
  1.  Rapport d'activités 2023
    Rapport d'activités 2023
  2. Programmes Techniques 2024
    Programmes Techniques 2024
Outil de recherche métadonnées
  1. Acquisition des tickets restaurant pour le personnel de l’ONM
    ACQUISITION DES TICKETS RESTAURANT POUR LE PERSONNEL DE L’ONM
  2. Choix d’une compagnie d’assurance au profit de l’ONM
    CHOIX D’UNE COMPAGNIE D’ASSURANCE
  3. ACQUISITION ET MISE EN ŒUVRE D’UN PROGICIEL DE GESTION INTEGRE
    ACQUISITION ET MISE EN ŒUVRE D’UN PROGICIEL DE GESTION INTEGRE
Investir en Tunisie


Liens Utiles
Ressources en lignes
Sondages en ligne
Que pensez-vous de notre site ?
Excellent
Très bien
Bien
Moyen


Voir résultats des sondages
Search Biblio.
:: Documentation and Editions >> Research library
 

[ Search by author ] [ Search keyword ] [ Search by index ] [ Search by category ]



title of the reference :  Glucosamine as a biochemical marker for dynoflagellates in phosphatised sediments.
Publication Date: 1980
Author : Belayouni Habib, Trichet Jean
Catalogue type : Livre
Catalogue reference : (GBR) Phys. Chem. Earth Glucosamine as a biochemical marker for dynoflagellates in phosphatised sediments. Glucosamine comme marqueur biologique pour les dinoflagéllés dans les roches phosphatées. Microscopic studies have shown that Dinoflagellate cysts are well preserved in the phosphatised sediments in the Tunisian Basin of Gafsa. The composition of these cysts has been studied and it has been shown that N-acetyl glucosamine is an essential component. This has been done by content of glucosamine colorimetrically, chromatographically and optically by specific marking of the N-acetyl glucosamine with a fluorescent lectin. More than 80 of the glucosamine contained in the rock appears to be concentrated in Dinoflagellate cysts. This amino-sugar can be considered as a geochemical fossil from these organisms. bibliogr. roche phosphatée ; dinoflagellata ; colorimètrie ; chromatographie ; glucosamine ; composé azoté ; Tunisie ; Tunisie Sud Occidentale ; Gafsa Trichet Jean Belayouni Habib Géochimie
Indexation decimale : Géochimie
Keywords : roche phosphatée ; dinoflagellata ; colorimètrie ; chromatographie ; glucosamine ; composé azoté ; Tunisie ; Tunisie Sud Occidentale ; Gafsa
Summary : Microscopic studies have shown that Dinoflagellate cysts are well preserved in the phosphatised sediments in the Tunisian Basin of Gafsa. The composition of these cysts has been studied and it has been shown that N-acetyl glucosamine is an essential component. This has been done by content of glucosamine colorimetrically, chromatographically and optically by specific marking of the N-acetyl glucosamine with a fluorescent lectin. More than 80 of the glucosamine contained in the rock appears to be concentrated in Dinoflagellate cysts. This amino-sugar can be considered as a geochemical fossil from these organisms.
Exemplaries : TU635


 

Siège social de l'ONM 24,rue de L'Energie, 2035 La Charguia - Tunis | BP: 215 - 1080 Tunis Cedex - Tunisie | Tél:(216) 71 808 013 / 71 808 266 - Fax (216) 71 808 098
Tous droits réservés ©2024 Office National des Mines
Dernière mise à jour :06-05-2024