Effects of ϵ-polylysine and milk serum protein on the attachment and decontamination of Salmonella Enteritidis on lettuce and radish sprouts

Md Tariqul Islam, Aya Ogura, Chikako Machida, Noriko Morinaga, Ken-ichi Honjoh, Takahisa Miyamoto

Research output: Contribution to journalArticle

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Abstract

To understand the effects of pretreatment of lettuce during cultivation with 0.001% '-polylysine (PL) in combination with 0.25% milk serum protein (MSP) on the attachment of Salmonella Enteritidis, lettuce leaves were contaminated with S. Enteritidis after a 1-day treatment with food additives, and harvested after cultivation for 1 day. Viable S. Enteritidis counts on lettuce leaves pretreated with the PL and MSP mixture were significantly reduced from 5.7 log CFU/g to 1 log CFU/g after decontamination by washing with water and a subsequent treatment with NaClO. The viable S. Enteritidis counts on radish sprouts grown for 7 d in the presence of 0.01% PL from seeds inoculated with S. Enteritidis were reduced to 3.1 log CFU/50 sprouts after NaClO decontamination. These counts were significantly lower (P < 0.05) than those of plants without additive(s). The treatment with additive(s) did not affect the ascorbic acid and chlorophyll contents of both plants.

Original languageEnglish
Pages (from-to)703-711
Number of pages9
JournalFood Science and Technology Research
Volume22
Issue number5
DOIs
Publication statusPublished - Jan 1 2016

Fingerprint

Raphanus
Lettuce
Salmonella enteritidis
sprouts (food)
Salmonella
Polylysine
Decontamination
Milk Proteins
decontamination
Salmonella Enteritidis
radishes
whey
lettuce
blood proteins
Blood Proteins
Food additives
Proteins
Ascorbic acid
Chlorophyll
leaf lettuce

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Food Science
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering
  • Marketing

Cite this

Effects of ϵ-polylysine and milk serum protein on the attachment and decontamination of Salmonella Enteritidis on lettuce and radish sprouts. / Islam, Md Tariqul; Ogura, Aya; Machida, Chikako; Morinaga, Noriko; Honjoh, Ken-ichi; Miyamoto, Takahisa.

In: Food Science and Technology Research, Vol. 22, No. 5, 01.01.2016, p. 703-711.

Research output: Contribution to journalArticle

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