HIGH-VOLTAGE PULSED ELECTRIC-FIELD INACTIVATION OF BACILLUS-SUBTILIS AND LACTOBACILLUS-DELBRUECKII

Authors
POTHAKAMURY UR MONSALVEGONZALEZ A BARBOSACANOVAS GV SWANSON BG
Citation
Ur. Pothakamury et al., HIGH-VOLTAGE PULSED ELECTRIC-FIELD INACTIVATION OF BACILLUS-SUBTILIS AND LACTOBACILLUS-DELBRUECKII, Revista espanola de ciencia y tecnologia de alimentos, 35(1), 1995, pp. 101-107
Citations number
NO
Categorie Soggetti
Food Science & Tenology",Agriculture,"Chemistry Applied
Journal title
Revista espanola de ciencia y tecnologia de alimentos → ACNP
ISSN journal
1131799X
Volume
35
Issue
1
Year of publication
1995
Pages
101 - 107
Database
ISI
SICI code
1131-799X(1995)35:1<101:HPEIOB>2.0.ZU;2-C
Abstract
High voltage pulsed field inactivation of Bacillus subtilis and Lactob acillus delbrueckii is demonstrated. A four to five log cycle reductio n is achieved in a model food, simulated milk ultrafiltrate (SMUF), wi th a peak electric field strength of 16 kV/cm and 50 pulses for Bacill us subtilis and with 40 pulses for Lactobacillus delbrueckii; pulse wi dth ranging between 200 and 300 mu s. The temperature of the cell susp ension was kept below the lethal temperature, demonstrating that inact ivation is not due to thermal effects induced by the pulses of high vo ltage electricity.