Author: McCarthy A.A. Conroy H. Walsh P.K. Foley G.
Publisher: Springer Publishing Company
ISSN: 0951-208X
Source: Biotechnology Techniques, Vol.12, Iss.12, 1998-12, pp. : 909-912
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Abstract
Suspensions of Kluveromyces marxianus var. marxianus NRRLy2415 and active dry bakers' yeast were dead-end filtered in the range 30–500kPa. In all cases, the specific cake resistance, α, could be related to pressure, ▵P, through the expression α = α0 (1 kc▵P) where α0 and kc are empirical constants. For K. marxianus, the values of kc were 1.67 × 10-5 Pa-1 and 2.39 × 10×5 Pa-1 for suspensions with mean cell aspect ratios of 2.98 and 7.33 respectively. Values of kcfor active dry yeast were 10.56 × 10-5 Pa-1 in the case of unwashed cells with a mean aspect ratio of 1.21 and 7.94 × 10-5 Pa-1 for washed cells with a mean aspect ratio of 1.20. ©Rapid Science Ltd. 1998