Etude De La Bioprospection De Levures : Criblage Des Activités Enzymatiques D’intérêt Biotechnologique.
Résumé: In this study, we focused on the isolation and selection of yeast strains that produce enzymes of iotechnological interest. Isolation was performed from four samples: cow's milk, whey curd, and potato peel. These microbial niches allowed the isolation of 7 strains on YPG. The identification of the 7 selected strains was carried out through the study of morphological and physiological characteristics.A macroscopic study was conducted to determine the cultural characteristics of the isolated yeast strains, and a microscopic study was performed to determine their shape and size. Different carbon sources such as lactose, maltose, sucrose, and galactose were used for physiological identification through fermentation. For nitrogen assimilation, nitrogenous ubstrates including glutamic acid, alanine, tryptophan, and potassium nitrate (KNO3) were used. The enzymatic potential of the studied isolates was evaluated for the production of 4 different enzymes by culturing microorganisms on different substrates. The enzymes studied were alpha-amylase, pectinase, maltase, and protease. The results showed that all selected strains produce the mentioned enzymes, except for strain S5, which does not produce maltase and pectinase
Mots-clès:
Nos services universitaires et académiques
Thèses-Algérie vous propose ses divers services d’édition: mise en page, révision, correction, traduction, analyse du plagiat, ainsi que la réalisation des supports graphiques et de présentation (Slideshows).
Obtenez dès à présent et en toute facilité votre devis gratuit et une estimation de la durée de réalisation et bénéficiez d'une qualité de travail irréprochable et d'un temps de livraison imbattable!
Aucun fichier associé
Si le fichier est volumineux, l'affichage peut échouer. Vous pouvez obtenir le fichier directement en cliquant sur le bouton "Télécharger".
