PRODUCTION OF VITAMIN B12 BY Propionibacterium Freudenreichii AND Bacillus megaterium | ||||
| Journal of Agricultural Chemistry and Biotechnology | ||||
| Article 1, Volume 30, Issue 7, July 2005, Page 4149-4162 PDF (1.52 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jacb.2005.235832 | ||||
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| Authors | ||||
| Khadiga A. Abou-Taleb; W. A. Mashhoor; Sohair A. Nasr; M. S. Sharaf | ||||
| Agrk. Microbial. Dept., Fac. of Agrlc., Ain Shams Unlv., P.O.Box 68, Hadayek Shoubra 11241, Cairo, Egypt. | ||||
| Abstract | ||||
| Effect of some nutritiona! Iactors on growth and vitamin 8'2 production by Prop < /em>ionibacterium freudenreichii subsp. freudenreichii GeM 1857, Propionibacterium treudenreicnii subsp. sriermenii P1NRC, Bacillus megaterium DSM 2894, and Bacillus meqeterium 1066 was investigated. Results indicated that sodium lactate was the best carbon source for Propionibacterium spp .. while glucose was the best carbon source (or B. mega/anum. Yeast extract plus ammonium sulphate was superior nitrogen source for Prop < /em>ionibacterium spp.. and yeast extract was the best nitrogen source (or 8. megaterium. Use of combination of some compounds (GoGb ~ CuSO. ~ MnSO, ~ lnSO. + MgSO. + FeSO.) enhanced growth of Prop < /em>ionibacterium spp. and B megaterium. Cobalt concentration of 10 mg r' was favor for Propionibacterium spp., however cobau concentration of 15 mg r' was favor for 8. megaterium. High test molasses and corn meal were found to be the best agriculture by-products for Propionibacterium freudenreichii subsp. treuoerue'cm! CCM 1857 & Bacillus megaterium DSM 2894 after being added to the basic medium. | ||||
| Keywords | ||||
| Vrtamin 8'2 production. Agricultural by-products; Microelements; Propionibacterium freudenreichii and Bacillus megaterium | ||||
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