NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Biotechnology (IJBT) >
IJBT Vol.08 [2009] >
IJBT Vol.08(4) [October 2009] >


Title: A comparative study on citric acid production kinetics of two Yarrowia lipolytica strains in two different media
Authors: Yalcin, S Karasu
Bozdemir, M T
Ozbas, Z Y
Keywords: Batch fermentation
citric acid
growth kinetics
production kinetics
Yarrowia lipolytica
yeast
Issue Date: Oct-2009
Publisher: CSIR
Abstract: Microbial production of citric acid was performed by Yarrowia lipolytica NBRC 1658 and a domestic strain in the media containing glucose or fructose as substrates. The study was carried out in a batch system. The non-competitive substrate inhibition model was proposed for growth of the yeasts in both substrate media. Higher dry mass and lower Ks values were obtained in glucose media when compared to fructose media. The highest citric acid concentration (65.1 g/L) was obtained with the domestic strain in the medium containing 200 g/L fructose. In the media containing fructose, maximum citric acid concentration and productivity values determined with the domestic strain were aproximately two-fold greater than those obtained with NBRC 1658 strain. The required initial concentration of glucose or fructose at which best citric acid production properties were observed changed between 100-200 g/L for both of the strains. The ratio of citric acid to isocitric acid was found to change between 11.70-16.62
Page(s): 408-417
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Source:IJBT Vol.08(4) [October 2009]

Files in This Item:

File Description SizeFormat
IJBT 8(4) 408-417.pdf647.96 kBAdobe PDFView/Open
 Current Page Visits: 1050 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 593696 since 06-Feb-2009  Last updated on 18-Sep-2014Webmaster: nopr@niscair.res.in