Premium
Evaluation of a system for chemical sterilization of packages
Author(s) -
Abreu L. F.,
Faria J. A. F.
Publication year - 2004
Publication title -
packaging technology and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 50
eISSN - 1099-1522
pISSN - 0894-3214
DOI - 10.1002/pts.638
Subject(s) - peracetic acid , sterilization (economics) , bacillus subtilis , polyethylene terephthalate , spore , factorial experiment , pulp and paper industry , polyethylene , materials science , chemistry , food science , mathematics , composite material , microbiology and biotechnology , organic chemistry , biology , engineering , bacteria , hydrogen peroxide , statistics , monetary economics , economics , foreign exchange market , genetics , foreign exchange
A system was evaluated for the chemical sterilization of packages, based on its sporicidal efficiency using inoculated Bacillus subtilis inside polyethylene terephthalate (PET) bottles. Different combinations of contact time, temperature and peracetic acid concentrations were tested, delineated according to a factorial planning of 2 3 . The results, expressed as decimal reduction counts, proved that peracetic acid showed good sporicidal efficiency at 1.2% concentration in the temperature range 30–50°C. With this performance, the tested system can be used to sterilize plastic bottles and other similar packages, achieving a count reduction of spores by up to 10 −7 . Copyright © 2004 John Wiley & Sons, Ltd.