Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1998-9-10
pubmed:abstractText
To determine the safety of fresh-cut vegetables packaged in modified atmosphere, challenge studies using both nonproteolytic and proteolytic strains of Clostridium botulinum were performed with a variety of fresh-cut packaged salads and vegetables stored at different temperatures. When vegetables were inoculated with spores of C. botulinum and incubated in low-O2 atmospheres, spore germination and growth and toxin production were observed. Botulinum toxin was produced by proteolytic types A and B on onion, butternut squash, rutabaga, salad, and stir-fry vegetables. Nonproteolytic C. botulinum produced toxin on butternut squash and salad. Nonproteolytic C. botulinum was capable of producing neurotoxin at temperatures as low as 5 degree C whereas proteolytic strains produced neurotoxin at 15 degrees C and higher. Although most samples were visibly spoiled before detection of botulinum toxin, samples of butternut squash and onion remained acceptable after detection of toxin. The strict maintenance of low temperatures (< 5 degrees C) is recommended in order to control the potential growth of C. botulinum on fresh-cut vegetables packaged in a modified atmosphere.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0362-028X
pubmed:author
pubmed:issnType
Print
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
324-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Growth and toxin production by Clostridium botulinum on inoculated fresh-cut packaged vegetables.
pubmed:affiliation
Bureau of Microbial Hazards, Health Canada, Sir Frederick Banting Research Centre, Onatrio, Canada. john_austin@inet.hwe.ca
pubmed:publicationType
Journal Article