Cited by 16Microbial Inactivation MethodsAntimicrobial agents and applicationsListeria monocytogenes in Food Safety

Some Factors Affecting the Activity of Diethylpyrocarbonate as a Sterilant

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Splittstoesser, D. F., Wilkison, Martha·1973·Applied Microbiology

Abstract

Quantitative data indicated logarithmic death in 5 degrees Brix Concord grape juice when concentrations of cells under 10(7)/ml were exposed to diethylpyrocarbonate (DEPC). Species differed considerably in their resistance; e.g., 50 ppm reduced the viable count of Saccharomyces cerevisiae over nine log(10) cycles, whereas 200 ppm reduced the count of Byssochlamys fulva ascospores by only about 1 log. DEPC lethality was enhanced by higher temperatures; destruction at 40 C was 10- to 100-fold greater than at 20 C. Studies on death rates showed that most yeasts and fungal spores were killed during the first hour of exposure, whereas 24 h or longer was needed for maximal destruction of several lactic acid bacteria. Repair of DEPC-induced damage was believed responsible for the slower death rates of the lactics.

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Crossref · 10.1128/am.25.6.853-857.1973

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Authors
Splittstoesser, D. F., & Wilkison, M.
Affiliations
Cornell University (US)
Venue
Applied Microbiology
Published
1973-06
Volume
25
Issue
6
Pages
853-857
ISSN
0003-6919 (ISSN-L)
OpenAlex
W1555601619
Cited by
16
References
7
Citations by year
2022: 1 · 2021: 1 · 2016: 1 · 2013: 1
FWCI
1.65
Type
journal article
Language
en
Open access
Locations
  • Applied Microbiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Microbial Inactivation Methods
  • Physical Sciences › Chemistry › Organic Chemistry › Antimicrobial agents and applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Listeria monocytogenes in Food Safety
Keywords
diethylpyrocarbonate, sterilants, microbial inactivation, grape juice, Saccharomyces cerevisiae, Byssochlamys fulva, ascospores, lactic acid bacteria, temperature effects, food sterilization
MeSH terms
Ascomycota, Aspergillus, Cell Survival, Culture Media, Drug Resistance, Microbial, Food Contamination, Food Microbiology, Food Preservation, Formates, Fruit, Hydrogen-Ion Concentration, Lactobacillus, Leuconostoc, Saccharomyces cerevisiae, Species Specificity, Spores, Fungal, Sterilization, Temperature, Time Factors

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