Survival and colonization of Escherichia coli O157:H7 on spinach leaves as affected by inoculum level and carrier, temperature and relative humidity
DC Field | Value | Language |
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dc.contributor.author | Choi, S. | - |
dc.contributor.author | Bang, J. | - |
dc.contributor.author | Kim, H. | - |
dc.contributor.author | Beuchat, L. R. | - |
dc.contributor.author | Ryu, J. -H | - |
dc.date.accessioned | 2021-09-07T05:39:37Z | - |
dc.date.available | 2021-09-07T05:39:37Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2011-12 | - |
dc.identifier.issn | 1364-5072 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/111040 | - |
dc.description.abstract | Aims: To determine survival and colonization of Escherichia coli O157:H7 on spinach leaves as affected by inoculum level and carrier, temperature and relative humidity (r.h.). Methods and Results: Spinach leaves were inoculated with suspensions of E. coli O157:H7 in distilled water (DW) and 0.1% peptone water (PW) and incubated at 4, 12 and 25 degrees C and 43, 85 and 100% r.h. The number of E. coli O157:H7 on leaves (5.6 or 1 9 log CFU per leaf) inoculated using DW as a carrier medium increased significantly at 25 degrees C and 100% r.h. within 120 h but remained constant or decreased significantly under other test conditions. E. coli O157:H7 on leaves (5.4 log CFU per leaf) inoculated using PW as a carrier increased significantly within 72 and 24 h, respectively, at 12 or 25 degrees C and 100% r.h.; counts using a low inoculum (2.2 log CFU per leaf) increased significantly within 24 h at 25 degrees C. Conclusions: Escherichia coli O157: H7 can colonize on spinach leaves at 12 or 25 degrees C in a 100% r.h. environment. Organic matter in the inoculum carrier may provide protection and nutrients which enhance survival and colonization. Significance and Impact of the Study: Colonization of E. coli O157:H7 on spinach leaves as affected by organic matter in the inoculum, temperature and r.h. was determined. These observations will be useful when developing strategies to prevent growth of E. coli O157:H7 on pre- and postharvest spinach. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-BLACKWELL | - |
dc.subject | BIOFILM FORMATION | - |
dc.subject | SALMONELLA-TYPHIMURIUM | - |
dc.subject | LISTERIA-MONOCYTOGENES | - |
dc.subject | MICROBIAL BIOFILMS | - |
dc.subject | STAINLESS-STEEL | - |
dc.subject | HUMAN PATHOGENS | - |
dc.subject | LETTUCE | - |
dc.subject | O157-H7 | - |
dc.subject | O157H7 | - |
dc.subject | GROWTH | - |
dc.title | Survival and colonization of Escherichia coli O157:H7 on spinach leaves as affected by inoculum level and carrier, temperature and relative humidity | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ryu, J. -H | - |
dc.identifier.doi | 10.1111/j.1365-2672.2011.05175.x | - |
dc.identifier.scopusid | 2-s2.0-81255153655 | - |
dc.identifier.wosid | 000297848900017 | - |
dc.identifier.bibliographicCitation | JOURNAL OF APPLIED MICROBIOLOGY, v.111, no.6, pp.1465 - 1472 | - |
dc.relation.isPartOf | JOURNAL OF APPLIED MICROBIOLOGY | - |
dc.citation.title | JOURNAL OF APPLIED MICROBIOLOGY | - |
dc.citation.volume | 111 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 1465 | - |
dc.citation.endPage | 1472 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Biotechnology & Applied Microbiology | - |
dc.relation.journalResearchArea | Microbiology | - |
dc.relation.journalWebOfScienceCategory | Biotechnology & Applied Microbiology | - |
dc.relation.journalWebOfScienceCategory | Microbiology | - |
dc.subject.keywordPlus | BIOFILM FORMATION | - |
dc.subject.keywordPlus | SALMONELLA-TYPHIMURIUM | - |
dc.subject.keywordPlus | LISTERIA-MONOCYTOGENES | - |
dc.subject.keywordPlus | MICROBIAL BIOFILMS | - |
dc.subject.keywordPlus | STAINLESS-STEEL | - |
dc.subject.keywordPlus | HUMAN PATHOGENS | - |
dc.subject.keywordPlus | LETTUCE | - |
dc.subject.keywordPlus | O157-H7 | - |
dc.subject.keywordPlus | O157H7 | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordAuthor | biofilm | - |
dc.subject.keywordAuthor | Escherichia coli O157:H7 | - |
dc.subject.keywordAuthor | mesophilic aerobic bacteria | - |
dc.subject.keywordAuthor | moulds and yeasts | - |
dc.subject.keywordAuthor | spinach | - |
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