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Phytase Production by Aspergillus oryzae in Solid-State Fermentation and its Applicability in Dephytinization of Wheat Ban

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An Erratum to this article was published on 25 June 2014

Abstract

Aspergillus oryzae SBS50 secreted a high titre of phytase in solid-state fermentation (SSF) using wheat bran at 30 °C after 96 h at the initial substrate to moisture ratio of 1:2 and a water activity of 0.95. The production of phytase increased when wheat bran was supplemented with sucrose and beef extract. Further enhancement in enzyme production was recorded when the substrate was supplemented with the surfactant Triton X-100 (145 U/g of DMB). An overall 29-fold improvement in phytase production was achieved owing to optimization. Under optimized conditions, the mould secreted 9.3-fold higher phytase in SSF as compared to submerged fermentation (SmF). The mesophilic mould also secreted amylase, cellulase (CMCase), pectinase and xylanase along with phytase in SSF. Scanning electron microscopy revealed luxuriant growth of A. oryzae on wheat bran with abundant spores. The enzyme dephytinized wheat bran with concomitant liberation of inorganic phosphate.

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Acknowledgment

The authors acknowledge the financial assistance from University Grants Commission (UGC) [F. No. 39-203/2010 (SR)], New Delhi during the course of this investigation.

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Authors and Affiliations

  1. Laboratory of Bioprocess Technology, Department of Microbiology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India

    Sapna & Bijender Singh

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  1. Sapna
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  2. Bijender Singh
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Correspondence to Bijender Singh.

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Sapna, Singh, B. Phytase Production by Aspergillus oryzae in Solid-State Fermentation and its Applicability in Dephytinization of Wheat Ban. Appl Biochem Biotechnol 173, 1885–1895 (2014). https://doi.org/10.1007/s12010-014-0974-3

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  • DOI: https://doi.org/10.1007/s12010-014-0974-3

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