Plum coatings of lemongrass oil-incorporating carnauba wax-based nanoemulsion

In Hah Kim, Hanna Lee, Jung Eun Kim, Kyung Bin Song, Youn Suk Lee, Dae Sung Chung, Sea C. Min

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Nanoemulsions containing lemongrass oil (LO) were developed for coating plums and the effects of the nanoemulsion coatings on the microbial safety and physicochemical storage qualities of plums during storage at 4 and 25 °C were investigated. The emulsions used for coating were produced by mixing a carnauba wax-based solution (18%, w/w) with LO at various concentrations (0.5% to 4.0%, w/w) using dynamic high pressure processing at 172 MPa. The coatings were evaluated for their ability to inhibit the growth of Salmonella Typhimurium and Escherichia coli O157:H7 and their ability to preserve various physicochemical qualities of plums. Uniform and continuous coatings on plums, formed with stable emulsions, initially inhibited S. Typhimurium and E. coli O157:H7 by 0.2 to 2.8 and 0.8 to 2.7 log CFU/g, respectively, depending on the concentration of LO and the sequence of coating. The coatings did not significantly alter the flavor, fracturability, or glossiness of the plums. The antimicrobial effects of the coatings against S. Typhimurium and E. coli O157:H7 were demonstrated during storage at 4 and 25 °C. The coatings reduced weight loss and ethylene production by approximately 2 to 3 and 1.4 to 4.0 fold, respectively, and also retarded the changes in lightness and the concentration of phenolic compounds in plums during storage. The firmness of coated plums was generally higher than uncoated plums when stored at 4 °C and plum respiration rates were reduced during storage. Coatings containing nanoemulsions of LO have the potential to inhibit Salmonella and E. coli O157:H7 contamination of plums and may extend plum shelf life.

Original languageEnglish
JournalJournal of Food Science
Volume78
Issue number10
DOIs
Publication statusPublished - 2013 Oct 1

Fingerprint

carnauba wax
nanoemulsions
Cymbopogon
plums
coatings
oils
Escherichia coli O157
Salmonella typhimurium
Salmonella Typhimurium
Emulsions
emulsions
Prunus domestica
lemongrass oil
high pressure treatment
anti-infective properties
Respiratory Rate
storage quality
Salmonella
ethylene production
preserves

All Science Journal Classification (ASJC) codes

  • Food Science

Cite this

Kim, In Hah ; Lee, Hanna ; Kim, Jung Eun ; Song, Kyung Bin ; Lee, Youn Suk ; Chung, Dae Sung ; Min, Sea C. / Plum coatings of lemongrass oil-incorporating carnauba wax-based nanoemulsion. In: Journal of Food Science. 2013 ; Vol. 78, No. 10.
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abstract = "Nanoemulsions containing lemongrass oil (LO) were developed for coating plums and the effects of the nanoemulsion coatings on the microbial safety and physicochemical storage qualities of plums during storage at 4 and 25 °C were investigated. The emulsions used for coating were produced by mixing a carnauba wax-based solution (18{\%}, w/w) with LO at various concentrations (0.5{\%} to 4.0{\%}, w/w) using dynamic high pressure processing at 172 MPa. The coatings were evaluated for their ability to inhibit the growth of Salmonella Typhimurium and Escherichia coli O157:H7 and their ability to preserve various physicochemical qualities of plums. Uniform and continuous coatings on plums, formed with stable emulsions, initially inhibited S. Typhimurium and E. coli O157:H7 by 0.2 to 2.8 and 0.8 to 2.7 log CFU/g, respectively, depending on the concentration of LO and the sequence of coating. The coatings did not significantly alter the flavor, fracturability, or glossiness of the plums. The antimicrobial effects of the coatings against S. Typhimurium and E. coli O157:H7 were demonstrated during storage at 4 and 25 °C. The coatings reduced weight loss and ethylene production by approximately 2 to 3 and 1.4 to 4.0 fold, respectively, and also retarded the changes in lightness and the concentration of phenolic compounds in plums during storage. The firmness of coated plums was generally higher than uncoated plums when stored at 4 °C and plum respiration rates were reduced during storage. Coatings containing nanoemulsions of LO have the potential to inhibit Salmonella and E. coli O157:H7 contamination of plums and may extend plum shelf life.",
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Plum coatings of lemongrass oil-incorporating carnauba wax-based nanoemulsion. / Kim, In Hah; Lee, Hanna; Kim, Jung Eun; Song, Kyung Bin; Lee, Youn Suk; Chung, Dae Sung; Min, Sea C.

In: Journal of Food Science, Vol. 78, No. 10, 01.10.2013.

Research output: Contribution to journalArticle

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