GENETIC MANIPULATION OF CEPHALOSPORIN C PRODUCING ACREMONIUM STRAIN FOR INCREASING ANTIBIOTIC TITER

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SAROUKHANI M.; MOAZAMI N.; AZARNOUSH MORTEZA

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Journal: Razi Journal of Medical Sciences Year:2003 | Volume:10 | Issue:34 Page(s): 229-234

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Information Journal Paper

Title

GENETIC MANIPULATION OF CEPHALOSPORIN C PRODUCING ACREMONIUM STRAIN FOR INCREASING ANTIBIOTIC TITER

Author(s)

SAROUKHANI M. | MOAZAMI N. | AZARNOUSH MORTEZA | Issue Writer Certificate

Keywords

STRAIN IMPROVEMENTQ4

ACREMONIUMQ4

MUTAGENESISQ4

Abstract

The extent of Cephalosporin C (CPC) production in producing strains is elated with the expression or inhibition of the relevent genes. The goal of this study was manipulate of the producing strain in order to increase its CPC production. ACREMONIUM chrysogenum DSM 2399 is used as parent strain. MUTAGENESIS is performed on solid form of optimized production media. UV ray and NTG (with their optimum doses) were used as mutagens. Random and directed (in presence of Hg ++ or nystatin elections were applied. Biological (Bioassay) and HPLC assay were performed for CPC measurement. The identity of CPC is confirmed by mass spectrometery in final resulting best strain. The optimum mutagenic doses of UV and NTG were 200 sec. And 5-7 min respectively. Also the inhibioty does of Hg++ and Nystatin were 0.006 g/dl and 0.3 g/dl respectively. Raised titer mutants wee obtained with both mutagens and both selection methods, although UV mutagen and the presence of Hg++ were more effective. CPC titer was rised 2.3 old in final resulting mutant. CPC identity in its production media were shown by observing, the unique 415 ion in mass spectrometery. By MUTAGENESIS protocols, it is available to change the CPC- biosynthetic genes in producing strains and increase CPC titer.

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References

غربال گری و جدا سازی سویه های مولد سفالو سپورین C – تولید و استخراج این آنتی بیوتیک

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APA: Copy

MOAZAMI, N., AZARNOUSH, MORTEZA, & SAROUKHANI, M.. (2003). GENETIC MANIPULATION OF CEPHALOSPORIN C PRODUCING ACREMONIUM STRAIN FOR INCREASING ANTIBIOTIC TITER. RAZI JOURNAL OF MEDICAL SCIENCES (JOURNAL OF IRAN UNIVERSITY OF MEDICAL SCIENCES), 10(34), 229-234. SID. https://sid.ir/paper/9827/en

Vancouver: Copy

MOAZAMI N., AZARNOUSH MORTEZA, SAROUKHANI M.. GENETIC MANIPULATION OF CEPHALOSPORIN C PRODUCING ACREMONIUM STRAIN FOR INCREASING ANTIBIOTIC TITER. RAZI JOURNAL OF MEDICAL SCIENCES (JOURNAL OF IRAN UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2003;10(34):229-234. Available from: https://sid.ir/paper/9827/en

IEEE: Copy

N. MOAZAMI, MORTEZA AZARNOUSH, and M. SAROUKHANI, “GENETIC MANIPULATION OF CEPHALOSPORIN C PRODUCING ACREMONIUM STRAIN FOR INCREASING ANTIBIOTIC TITER,” RAZI JOURNAL OF MEDICAL SCIENCES (JOURNAL OF IRAN UNIVERSITY OF MEDICAL SCIENCES), vol. 10, no. 34, pp. 229–234, 2003, [Online]. Available: https://sid.ir/paper/9827/en

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