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Faculty of Environmental Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Production of food grade exopolysaccharide from Rhizobium meliloti. I: Cultural condition of polysaccharide
انتاج سكريدات عديده للاستخدام الغذائى بواسطه خلايا Rhizobium meliloti: 1- ظروف التنميه لانتاج السكريدات العديدة
Document Language
:
English
Abstract
:
ABSTRACT To produce polysaccharide from Rhizobium meliloti standard medium and can molasses medium were used. Maximal production was achieved in the standard madium, which contains the following compostion per liter: glucose 30 g, (NH4)2HPO4 1.5 g, KH2PO4 0.5 g, MgSO4.7H2O 0.5 g, yeast extract 1.0 g and molasses medium which contains 32 g/l total sugars achieved the maximum production of polysaccharide. The optimum pH, production time, agitation for both of the two media were 6.8, 120 h and 120strokes/min respectively. The incubation temperature was 30°C. The optimum carbon to nitrogen ratio of standard medium and molasses medium were 27.27 and 20.6. At these cultural conditions, Rhizobium meliloti produced 14.12 g/l of polysaccharide in standard medium and 22.04 g/l in molasses medium. The viscosity of these media were 2.37 m Pa.s and 5.78 m Pa.s at shear rate 729 sec-1.
ISSN
:
10
Journal Name
:
Annals Agric. Sci., Moshtohor
Volume
:
35
Issue Number
:
4
Publishing Year
:
1418 AH
1997 AD
Article Type
:
Article
Added Date
:
Friday, September 2, 2011
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
محمد حسين مدكور
Madkour, Mohamed Hussein
Investigator
Doctorate
madkour55@yahoo.com
Files
File Name
Type
Description
30341.DOC
DOC
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