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Title 

Enhanced biomass and γ-linolenic acid production of mutant strain Arthrospira platensis

Authors 

Gang Guk ChoiM S BaeChi-Yong AhnHee-Mock Oh

Publisher 

The Korean Society for Applied Microbiology

Issue Date 

2008

Citation 

Journal of Microbiology and Biotechnology, vol. 18, no. 3, pp. 539-544

Keywords 

γ-linolenic acidarthrospira platensisbiomassGLAmixotrophic cultivationUVfatty acidgamma linolenic acidbacterium mutantbiomass production

Abstract 

A mutant of Arthrospira platensis PCC 9108, strain M9108, obtained by mutagenesis with UV treatment, was able to mixotrophically grow in an SOT medium containing 40 g of glucose/I. The biomass and specific growth rate of strain M9108 (4.10 g/I and 0.70/d) were 1.9-fold and 1.4-fold higher, respectively, than those of the wild type (2.21 g/I and 0.58/d) under mixotrophic culture condition. In addition, when compared with the wild type, the content of γ-linolenic acid (GLA) in the mutant was increased when glucose concentration was increased. Compared with the wild type, the GLA content of the mutant was 2-fold higher in autotrophic culture and about 3-fold higher in mixotrophic culture. Thus, the mutant appears to possess more efficient facility to assimilate and metabolize glucose and to produce more GLA than its wild-type strain.

ISSN 

1017-7825

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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