A comparative study on citric acid production kinetics of two Yarrowia lipolytica strains in two different media
Küçük Resim Yok
Tarih
2009
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
National Institute of Science Communication-Niscair
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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 K, 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.
Açıklama
Anahtar Kelimeler
Batch Fermentation, Citric Acid, Growth Kinetics, Production Kinetics, Yarrowia Lipolytica, Yeast
Kaynak
Indian Journal Of Biotechnology
WoS Q Değeri
N/A
Scopus Q Değeri
Q4
Cilt
8
Sayı
4
