The effect of composition of parenteral solution on the thermal resistance of Bacillus stearothermophilus and Bacillus subtilis spores.

Abstract:

:Large-volume parenteral solutions were submitted to heat treatments after being inoculated with Bacillus stearothermophilus ATCC 7953 (Tr = 121 degrees C) and Bacillus subtilis ATCC 9372 (Tr = 104.5 degrees C) spores. The average decimal reduction time for B. stearothermophilus ranged from a D121 degrees C value of 1.31 to 3.14 min, in glucophysiologic and Ringer's solutions respectively. For B. subtilis, D104.5 degrees C value increased from 0.69 to 1.37 min, in Ringer's (pH=5.91) and 50% glucose (pH 3.05) solutions respectively. The z value ranged from 7.95 degrees C (20% mannitol solution) to 13.14 degrees C (50% glucose solution), corresponding to an activation energy (Ea) of 81.48 and 49.30 kcal/mol, respectively.

authors

Penna TC,Marques M,Machoshvili IA,Ishii M

doi

10.1385/abab:98-100:1-9:539

subject

Has Abstract

pub_date

2002-04-01 00:00:00

pages

539-51

eissn

0273-2289

issn

1559-0291

journal_volume

98-100

pub_type

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