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Production of iturin A through glass column reactor (GCR) from soybean curd residue (okara) by Bacillus subtilis RB14-CS under solid state fermentation (SSF)

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DOI: 10.4236/abb.2012.32021    4,950 Downloads   8,901 Views   Citations

ABSTRACT

The present study was conducted with an aim to scale up the production of iturin A using soybean curd residue (okara). Iturin A was produced by indigenous bacterial strain Bacillus subtilis RB14-CS through glass column reactor (GCR) under solid state fermentation (SSF) was characterized. The enhanced iturin A production was observed with respect to enhanced substrate bed height when SSF was conducted in Erlenmeyer flask. To check the effect of substrate bed height on iturin A production under SSF of okara, GCR was introduced. Substrate bed height of 15 cm was suitable for iturin A production which was about 2700 mg/kg wet substrate. The observed iturin A production by the aerobic bacteria Bacillus subtilis in nearly anaerobic condition in such high substrate bed for SSF is a wonderful finding for development of SSF system in future.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Khan, A. , Zohora, U. , Rahman, M. , Okanami, M. and Ano, T. (2012) Production of iturin A through glass column reactor (GCR) from soybean curd residue (okara) by Bacillus subtilis RB14-CS under solid state fermentation (SSF). Advances in Bioscience and Biotechnology, 3, 143-148. doi: 10.4236/abb.2012.32021.

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