Linked Life Data

19397729

Source:http://linkedlifedata.com/resource/pubmed/id/19397729

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2009-4-28
pubmed:abstractText
This study investigated the antimicrobial efficiency of 3 essential oils (EOs), lemongrass, cinnamon leaf, and basil, and freeze-thaw treatment, alone or in combination, against Escherichia coli O157:H7 and Salmonella enterica Ser. Enteritidis inoculated in strawberry juice stored at 7 degrees C. EO of lemongrass or cinnamon leaf at 0.1 to 2 microL/mL and freezing at -23 degrees C for 24 or 48 h followed by thawing at 7 degrees C for 4 h all showed significant antimicrobial activities (P < 0.05) against E. coli O157:H7 and S. Enteritidis in strawberry juice. The antimicrobial activity increased with increasing EO concentration and storage time, but extending freezing time from 24 to 48 h did not enhance the antimicrobial activity of freeze-thaw treatment (P > 0.05). EO of lemongrass or cinnamon leaf at 0.1 microL/mL and freeze-thaw treatment alone obtained a 5 log(10) reduction in the population of S. Enteritidis, while EOs at 0.1 to 0.3 microL/mL or freeze-thaw alone could not achieve a satisfactory protection against E. coli O157:H7 in strawberry juice. Combined EO and freeze-thaw treatment enhanced the overall antimicrobial effect against E. coli O157:H7, with adding EO before the freeze-thaw treatment showed a faster decontamination rate than when added EO after the freeze-thaw. EOs of lemongrass and cinnamon leaf at 0.1 or 0.3 microL/mL followed by the freeze-thawing resulted in a 5 log(10) reduction in E. coli O157:H7 on the 5th and 2nd day of storage, respectively. This study suggested that combined EO and freeze-thaw treatment may be a suitable and inexpensive method to eliminate microorganisms that can be a hazard for the consumers of unpasteurized berry juices.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1750-3841
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
M131-7
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Antimicrobial efficiency of essential oil and freeze-thaw treatments against Escherichia coli O157:H7 and Salmonella enterica Ser. Enteritidis in strawberry juice.
pubmed:affiliation
Department of Food Science & Technology, Oregon State Univ., Corvallis, OR 97331-6602, USA.
pubmed:publicationType
Journal Article