The effect of pressure on the specific resistance of yeast filter cakes during dead-end filtration in the range 30-500kPa

被引：13

作者：

McCarthy, A ^{[1
]}

Conroy, H ^{[1
]}

Walsh, PK ^{[1
]}

Foley, G ^{[1
]}

机构：

[1] Dublin City Univ, Sch Biotechnol, Dublin 9, Ireland

来源：

BIOTECHNOLOGY TECHNIQUES | 1998年 / 12卷 / 12期

关键词：

D O I：

10.1023/A:1008869613181

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

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, alpha, could be related to pressure, Delta P, through the expression alpha = alpha(o)(1 + k(c)Delta P) where alpha(o) and k(c) are empirical constants. For K. marxianus, the values of k(c) were 1.67 x 10(-5) Pa-1 and 2.39 x 10(-5) Pa-1 for suspensions with mean cell aspect ratios of 2.98 and 7.33 respectively. Values of k(c) for active dry yeast were 10.56 x 10(-5) Pa-1 in the case of unwashed cells with a mean aspect ratio of 1.21 and 7.94 x 10(-5) Pa-1 for washed cells with a mean aspect ratio of 1.20.

引用

页码：909 / 912

页数：4

共 8 条

[1]

GRACE HP, 1963, CHEM ENG PROG, V6, P303

[2] LOSS OF CELL CONSTITUENTS ON RECONSTITUTION OF ACTIVE DRY YEAST [J].