Table 2 - Citric acid production from glucose by yeast Candida oleophila ATCC 20177 under batch, continuous and repeated batch cultivation

Table 2. Comparison between previous and present results with literature values regarding citric acid production by fungi and yeasts.

Reference	Microorganism	RT or time (h)	Rj (g/l x hr)	Y_P/S (%) (g/g )	Citrate (g/l)
Briffaud and Engasser, 1979	Saccharomycopsis lipolytica	200 hrs (batch)	0.48 0.7	75	95
Enzminger and Asenjo, 1986	S. lipolytica	66 hrs (batch)	1.16	86	75
Tisnadjaja et al. 1996	Candida guilliermondii	Free cells 110 hrs Immobilized	0.10	29	11.2
Kristiansen and Charley, 1981	A. foetidus	13 hrs RT	0.43	-	6.5
Kristiansen and Sinclair, 1979	A. niger	13 hrs RT	1.99		~26
Roukas and Harvey, 1988	A. niger	83 hrs RT	0.058	-	4.8
Previous and present work Continuous Batch Repeated batch	Candida oleophila ATCC 20177 (var.)	63 hrs RT 54-56 hrs 80-110 hrs 7.4 days 4.85 days	1.98 1.77-2.23 1.8-1.43 1.5	>70 75 <70	127 98-125 142-150 131.8 167

Rj (g/l x hr)