| Titre : |
Isolement de souches microbiennes à partir de biotopes algérien et mise en évidence de la production de pigments caroténoïdes |
| Type de document : |
texte imprimé |
| Auteurs : |
Wissem Boutana, Auteur ; Farida Bekhouche, Directeur de thèse |
| Editeur : |
جامعة الإخوة منتوري قسنطينة |
| Année de publication : |
2017 |
| Importance : |
91 f. |
| Format : |
30 cm. |
| Note générale : |
2 copies imprimées disponibles
|
| Langues : |
Français (fre) |
| Catégories : |
Français - Anglais
Nutrition, Alimentation et Technologies Agro-Alimentaires
|
| Tags : |
Biopigments caroténoïdes souches pigmentées isolement carotenoids pigmented strains isolation الاصباغ الحیویة الكاروتینات السلالات الصباغیة العزلة |
| Index. décimale : |
640 Industrie Alimentaire |
| Résumé : |
The use of microorganisms for the production of natural pigments is considered to be
one of the fastest growing pathways in biotechnology.The considerable interest in
biopigments, in particular carotenoids, is linked to their use as additives to coloring properties
in the food industry and also thanks to their provitaminic (vitamin A), antioxidant and
antiradical properties.The aim of our work is the isolation of pigmented strains from Algerian
biotopes (molasses, margines, whey and olives) and to test their carotenoid pigment synthesis
capacities. The creamy white, yellow, orange and pink colors served for the first selection of
120 pigmented strains of which 89 are bacteria and 21 are yeasts. The second selection
resulted in 40 strains which were used to demonstrate the production of pigments in liquid
media (TSB, YMB, OGB and SDB) the bacterial group consisting of 27 isolates and the yeast
group represented by 13 isolates. Measurements of pH, amount of biomass and carotenoid
pigment content revealed no significant variability between the last two parameters. The
pigment production test revealed that the BMY108 strain is potentially producing carotenoids
(1.79 ± 0.33 mg of equivalent β-carotène/g MS) and this on synthetic medium. These findings
open the possibilities of alternatives such as the use of low-cost substrates as agro-industrial
waste for the improvement of production.
|
| Note de contenu : |
|
| Diplôme : |
Magistère |
| En ligne : |
../theses/agronomie/BOU7040.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=10560 |
Isolement de souches microbiennes à partir de biotopes algérien et mise en évidence de la production de pigments caroténoïdes [texte imprimé] / Wissem Boutana, Auteur ; Farida Bekhouche, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2017 . - 91 f. ; 30 cm. 2 copies imprimées disponibles
Langues : Français ( fre)
| Catégories : |
Français - Anglais
Nutrition, Alimentation et Technologies Agro-Alimentaires
|
| Tags : |
Biopigments caroténoïdes souches pigmentées isolement carotenoids pigmented strains isolation الاصباغ الحیویة الكاروتینات السلالات الصباغیة العزلة |
| Index. décimale : |
640 Industrie Alimentaire |
| Résumé : |
The use of microorganisms for the production of natural pigments is considered to be
one of the fastest growing pathways in biotechnology.The considerable interest in
biopigments, in particular carotenoids, is linked to their use as additives to coloring properties
in the food industry and also thanks to their provitaminic (vitamin A), antioxidant and
antiradical properties.The aim of our work is the isolation of pigmented strains from Algerian
biotopes (molasses, margines, whey and olives) and to test their carotenoid pigment synthesis
capacities. The creamy white, yellow, orange and pink colors served for the first selection of
120 pigmented strains of which 89 are bacteria and 21 are yeasts. The second selection
resulted in 40 strains which were used to demonstrate the production of pigments in liquid
media (TSB, YMB, OGB and SDB) the bacterial group consisting of 27 isolates and the yeast
group represented by 13 isolates. Measurements of pH, amount of biomass and carotenoid
pigment content revealed no significant variability between the last two parameters. The
pigment production test revealed that the BMY108 strain is potentially producing carotenoids
(1.79 ± 0.33 mg of equivalent β-carotène/g MS) and this on synthetic medium. These findings
open the possibilities of alternatives such as the use of low-cost substrates as agro-industrial
waste for the improvement of production.
|
| Note de contenu : |
|
| Diplôme : |
Magistère |
| En ligne : |
../theses/agronomie/BOU7040.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=10560 |
|
Isolement de souches microbiennes à partir de biotopes algérien et mise en évidence de la production de pigments caroténoïdes
