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KMID : 0545119910010020130
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Journal of Microbiology and Biotechnology
1991 Volume.1 No. 2 p.130 ~ p.135
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Stabile Fermentation of Citric Acid Using Immobilized Saccharomycopsis lipolytica
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Kim Eun-Ki
RONNIE S. ROBERTS
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Abstract
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The effects of media composition on citric acid fermentation using surface immobilized Saccharomycopsis lipolytica were studied. The use of the standard medium for these organisms resulted in rapid decrease of citric acid production and a transformation of immobilized cell morphologies from a yeast-type to a mycelium-type. When the standard medium was enriched with vitamins, trace minerals, a growth factor and ammonium to form a Vigorous Stationary Phase (VSP) fermentation type medium, relatively stable citric acid production (10㎎/ℓ·h) was obtained. Using the VSP type medium, the surface immobilized cells also retained their yeast-type form.
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