ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Citric acid production from raw glycerol by acetate mutants of Yarrowia lipolytica
W. Rymowicz, A. Rywińska, B. Żarowska, and P. Juszczyk
Department of Biotechnology and Food Microbiology, Faculty of Food Science, Agricultural University of Wroclaw, PL-50-375 Wroclaw, Poland
Received: 16 March 2006 Revised: 11 May 2006 Accepted: 4 June 2006
Abstract: Three acetate mutants of the yeast species Yarrowia lipolytica were screened using batch cultivation. The strain Y. lipolytica 1.31 was found to be the most suitable for citric acid production from raw glycerol, a by-product of biodiesel production from rapeseed oil. At the initial concentration of glycerol of 200 g dm−3, the citric acid production of 124.5 g dm−3, yield of 0.62 g g−1, and productivity of 0.88 g dm−3 h−1 were achieved.
Keywords: citric acid - cultivation - glycerol - Yarrowia lipolytica
Full paper is available at www.springerlink.com.
Chemical Papers 60 (5) 391–394 (2006)