View : 12 Download: 0

Inactivation of Bacillus cereus spores by high hydrostatic pressure at different temperatures

Title
Inactivation of Bacillus cereus spores by high hydrostatic pressure at different temperatures
Authors
Oh S.Moon M.-J.
Ewha Authors
오상석
SCOPUS Author ID
오상석scopus
Issue Date
2003
Journal Title
Journal of Food Protection
ISSN
0362-028XJCR Link
Citation
vol. 66, no. 4, pp. 599 - 603
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
The effect of pH on the initiation of germination and on the inactivation of Bacillus cereus (KCTC 1012) spores during high hydrostatic pressure processing (HPP) with pressures of 0.1 to 600 MPa at different temperatures was investigated. Two different high-pressure treatments were adopted to evaluate the effect of pH on the inactivation of B. cereus on sporulation medium and in suspension medium. Inactivation of B. cereus spores with HPP treatment was affected more by sporulation medium pH than by suspension medium pH. B. cereus spores obtained through sporulation at pH 6.0 showed more resistance to inactivation by HPP at 20, 40, and 60°C than did those obtained through sporulation at pHs of 7.0 and 8.0. Constituents of B. cereus spores obtained through sporulation at pH 6.0 may undergo electrochemical charge changes comparable to those for spores obtained through sporulation at pH 7.0. The initiation of B. cereus spore germination was more sensitive to pressure around 300 MPa at 20°C. Increasing processing temperatures during HPP enhanced the effect of sporulation medium pH (i.e., environmental pH) on the inactivation of B. cereus spores.
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE