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Article: Sonodynamic action of curcumin on foodborne bacteria Bacillus cereus and Escherichia coli

TitleSonodynamic action of curcumin on foodborne bacteria Bacillus cereus and Escherichia coli
Authors
KeywordsCurcumin
Foodborne bacteria
Sonodynamic antibacterial chemotherapy
Sonodynamic inactivation
Issue Date2015
Citation
Ultrasonics, 2015, v. 62, p. 75-79 How to Cite?
AbstractBacterial contamination is an important cause of foodborne diseases. The present study aimed to investigate sonodynamic action of curcumin on foodborne bacteria Bacillus cereus (B. cereus) and Escherichia coli (E. coli). The uptake of curcumin was measured for optimizing the concentration incubation time before ultrasound sonication, and colony forming units (CFU) were counted after ultrasound treatment. The chromosomal DNA fragmentation of bacteria was analyzed and the effect of hypoxic condition on the antibacterial efficacy of sonodynamic action of curcumin was also assessed in this study. The results showed that the maximum uptake of curcumin in B. cereus and E. coli occurred in 50 min after curcumin incubation. Curcumin had sonodynamic bactericidal activity in a curcumin dose-dependent manner, and 5.6-log reduction in CFU of B. cereus was observed after curcumin treatment (2.0 μM), however, only 2-log reduction in CFU of E. coli after 40 μM curcumin treatment. No significant change in chromosomal DNA was found after the combined treatment of curcumin and ultrasound. The survival of B. cereus and E. coli after sonodynamic treatment in hypoxic group was significantly higher than that in normal oxygen group. These findings indicated that sonodynamic action of curcumin had significant inactivation effect on foodborne bacteria, and B. cereus was more sensitive to sonodynamic treatment of curcumin than E. coli. Sonodynamic antibacterial activity of curcumin might be dependent on the oxygen environment.
Persistent Identifierhttp://hdl.handle.net/10722/335779
ISSN
2023 Impact Factor: 3.8
2023 SCImago Journal Rankings: 1.093
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Xinna-
dc.contributor.authorIp, Margaret-
dc.contributor.authorLeung, Albert Wingnang-
dc.contributor.authorYang, Zhengrong-
dc.contributor.authorWang, Pan-
dc.contributor.authorZhang, Baoting-
dc.contributor.authorIp, Siupo-
dc.contributor.authorXu, Chuanshan-
dc.date.accessioned2023-12-28T08:48:41Z-
dc.date.available2023-12-28T08:48:41Z-
dc.date.issued2015-
dc.identifier.citationUltrasonics, 2015, v. 62, p. 75-79-
dc.identifier.issn0041-624X-
dc.identifier.urihttp://hdl.handle.net/10722/335779-
dc.description.abstractBacterial contamination is an important cause of foodborne diseases. The present study aimed to investigate sonodynamic action of curcumin on foodborne bacteria Bacillus cereus (B. cereus) and Escherichia coli (E. coli). The uptake of curcumin was measured for optimizing the concentration incubation time before ultrasound sonication, and colony forming units (CFU) were counted after ultrasound treatment. The chromosomal DNA fragmentation of bacteria was analyzed and the effect of hypoxic condition on the antibacterial efficacy of sonodynamic action of curcumin was also assessed in this study. The results showed that the maximum uptake of curcumin in B. cereus and E. coli occurred in 50 min after curcumin incubation. Curcumin had sonodynamic bactericidal activity in a curcumin dose-dependent manner, and 5.6-log reduction in CFU of B. cereus was observed after curcumin treatment (2.0 μM), however, only 2-log reduction in CFU of E. coli after 40 μM curcumin treatment. No significant change in chromosomal DNA was found after the combined treatment of curcumin and ultrasound. The survival of B. cereus and E. coli after sonodynamic treatment in hypoxic group was significantly higher than that in normal oxygen group. These findings indicated that sonodynamic action of curcumin had significant inactivation effect on foodborne bacteria, and B. cereus was more sensitive to sonodynamic treatment of curcumin than E. coli. Sonodynamic antibacterial activity of curcumin might be dependent on the oxygen environment.-
dc.languageeng-
dc.relation.ispartofUltrasonics-
dc.subjectCurcumin-
dc.subjectFoodborne bacteria-
dc.subjectSonodynamic antibacterial chemotherapy-
dc.subjectSonodynamic inactivation-
dc.titleSonodynamic action of curcumin on foodborne bacteria Bacillus cereus and Escherichia coli-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ultras.2015.05.003-
dc.identifier.pmid26026869-
dc.identifier.scopuseid_2-s2.0-84937524140-
dc.identifier.volume62-
dc.identifier.spage75-
dc.identifier.epage79-
dc.identifier.isiWOS:000358969100010-

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