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Paper Information

Journal:   IRANIAN BIOMEDICAL JOURNAL   July 2003 , Volume 7 , Number 3; Page(s) 91 To 98.
 
Paper: 

MUTAGENESIS OF XANTHOMONAS CAMPESTRIS AND SELECTION OF STRAINS WITH ENHANCED XANTHAN PRODUCTION

 
 
Author(s):  , MEHRGAN H.*, MAZAHERI ASADI MAHNAZ, MORTAZAVI SEYED ALI REZA
 
* 
 
Abstract: 
Xanthan gum is a microbial polysaccharide of great commercial importance as it has ‎unusual rheological properties in solution and consequent range of applications. In ‎this study, a series of mutants were isolated from Xanthomonas campestris PTCC ‎‎1473 by ethyl methanesulfonate mutagenesis. The polysaccharide yield of one mutant, ‎XC1473E2, was 30% better than that of the parent strain. It also showed higher ‎Xanthan formation and glucose consumption rates compared to the parent strain. ‎Xanthan produced by the mutant had enhanced viscosity, higher pseudoplasticity and ‎larger molecular weight. Since mutant XC1473E2 appeared white on agar plates, it ‎underwent pigment extraction with methanol. Contrary to the Parent strain, the mutant showed no absorption at 443nm, i.e. the wavelength related ‎to yellow pigment. This finding suggested that yellow pigmentation and normal ‎Xanthan biosynthesis are not necessarily concurrent. In general, mutant XC1473E2 ‎seems to be a strain with interesting characteristics for use in commercial production ‎of Xanthan‏.‏
 
Keyword(s): XANTHAN, XANTHOMONAS CAMPESTRIS, MUTATION, XANTHOMONADIN
 
 
References: 
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APA: Copy

MEHRGAN, H., & MAZAHERI ASADI, M., & MORTAZAVI, S. (2003). MUTAGENESIS OF XANTHOMONAS CAMPESTRIS AND SELECTION OF STRAINS WITH ENHANCED XANTHAN PRODUCTION. IRANIAN BIOMEDICAL JOURNAL, 7(3), 91-98. https://www.sid.ir/en/journal/ViewPaper.aspx?id=3010



Vancouver: Copy

MEHRGAN H., MAZAHERI ASADI MAHNAZ, MORTAZAVI SEYED ALI REZA. MUTAGENESIS OF XANTHOMONAS CAMPESTRIS AND SELECTION OF STRAINS WITH ENHANCED XANTHAN PRODUCTION. IRANIAN BIOMEDICAL JOURNAL. 2003 [cited 2021May15];7(3):91-98. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=3010



IEEE: Copy

MEHRGAN, H., MAZAHERI ASADI, M., MORTAZAVI, S., 2003. MUTAGENESIS OF XANTHOMONAS CAMPESTRIS AND SELECTION OF STRAINS WITH ENHANCED XANTHAN PRODUCTION. IRANIAN BIOMEDICAL JOURNAL, [online] 7(3), pp.91-98. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=3010.



 
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