A non-intrusive method for the measurement of water vapour sorption by bacterial spores

被引：6
|
作者：
Rubel, GO
机构：
[1] Edgewood Res., Devmt. and Eng. Ctr., Edgewood, MD
[2] Edgewood Research, Development and Engineering Centre, SCBRD-RTE, Edgewood
来源：
JOURNAL OF APPLIED MICROBIOLOGY | 1997年 / 83卷 / 02期
关键词：
D O I：
10.1046/j.1365-2672.1997.00222.x
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Single particle levitation (SPL) is used to measure the sorption and desorption of water vapour from microparticles comprising of Bacillus spores, Water gain is determined from increases in the weight-balancing levitation voltages. Spore water isotherms are compared to values previously reported using bulk gravimetric methods. Two salient differences are found between the SPL and bulk data: (1) greater osmotic swelling is observed in the SPL data; and (2) the SPL data exhibit open loop hysteresis while bulk data exhibit closed loop hysteresis.
引用
收藏
页码：243 / 247
页数：5
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