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Selection of microorganisms producing vitamin B12 from local (Saudi) isolates
Other Title(s)
انتقاء الكائنات الحية الدقيقة المنتجة لفيتامين ب 12 من عزلات محلية (السعودية)
Source
Journal of King Abdulaziz University : Sciences
Issue
Vol. 3, Issue 1 (30 Jun. 1991), pp.43-53, 11 p.
Publisher
King Abdulaziz University Scientific Publishing Center
Publication Date
1991-06-30
Country of Publication
Saudi Arabia
No. of Pages
11
Main Subjects
Abstract EN
Forty-six bacterial strains were highly varied in their efficiency to produce cell biomass and vitamin BI2.
Propionibacterium freudenreichii ATCC 6207 and two local bacterial isolates (Streptomyces S184 and Methylomonas methanica 14B-16 were the most efficient strains.
Productivity of vitamin B12 was affected by culturing methods (shake and static), and growth phases.
The highest Vitamin B ^productivity was observed in shake culture of P.
freudenreichii (170.2 u.g/100 ml culture and 68.1 |xgl/100 mg biomass dry wt.).
This strain also showed a positive correlation between the amount of vitamin and elapsing of time.
Other bacterial strains gave amounts of Vit.
B12 ranging from 9.12 to 35.6 u.g/100 ml culture and from 1.19 to 43.6 u.g/100 ml dry wt.
biomass.
The most efficient strains also showed a high productivity at early stage of growth in shake culture.
American Psychological Association (APA)
Sajini, Mansur Jamil& Ramadan, al-Shahhat Muhammad& al-Qurashi, Abd al-Rahman Muhammad. 1991. Selection of microorganisms producing vitamin B12 from local (Saudi) isolates. Journal of King Abdulaziz University : Sciences،Vol. 3, no. 1, pp.43-53.
https://search.emarefa.net/detail/BIM-400047
Modern Language Association (MLA)
Sajini, Mansur Jamil…[et al.]. Selection of microorganisms producing vitamin B12 from local (Saudi) isolates. Journal of King Abdulaziz University : Sciences Vol. 3, no. 1 ( 1991), pp.43-53.
https://search.emarefa.net/detail/BIM-400047
American Medical Association (AMA)
Sajini, Mansur Jamil& Ramadan, al-Shahhat Muhammad& al-Qurashi, Abd al-Rahman Muhammad. Selection of microorganisms producing vitamin B12 from local (Saudi) isolates. Journal of King Abdulaziz University : Sciences. 1991. Vol. 3, no. 1, pp.43-53.
https://search.emarefa.net/detail/BIM-400047
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 52
Record ID
BIM-400047