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Published on: September 30, 2018
Importance of medium pH in solid state fermentation for growth of Schwanniomyces castellii
G Saucedo-Castañeda1, B K Lonsane1, J M Navarro1
1Department of Biotechnology, Autonomous Metropolitan University, Iztapalapa Campus, AP 55-535, C.P. 9340, Mexico City, Mexico†Fermentation Technology and Bioengineering Discipline, Central Food Technological Research Institute, Mysore 570 013, India‡Laboratoire de Génie Microbiologique, Université des Sciences et Techniques du Languedoc, Place E. Bataillon, 34060 Montpellier, France§ORSTOM, Centre de Montpellier, Biotechnology Unit, 911 Avenue Agropolis, BP 5045, 34032 Montpellier Cedex 1, France.
Abstract:
Utilization of soluble starch by Schwanniomyces castellii in a solid state fermentation system was highest in unbuffered medium when initial and final pH of the medium were 6.5-7.0 and 4.0-4.6, respectively. An economic strategy involving the use of urea as a sole nitrogen source in medium with initial pH of 6.5 allowed maximum substrate utilization in the absence of buffer and without any contamination in column fermenter.
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