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ID 111085
著者
Watanabe, Takashi Tokushima University
キーワード
ferulic acid
photoantimicrobial activity
UV-A
food spoilers
foodborne pathogens
Disinfection
Biocontrol
Food preservation
Non-thermal processes
Post harvest
資料タイプ
学術雑誌論文
抄録
The low energy of UV-A (315–400 nm) is insufficient for disinfection. To improve UV-A disinfection technology, the effect of ferulic acid (FA) addition on inactivation by UV-A light-emitting diode (LED) light (350–385 nm) was evaluated in the eliminating of suspensions of various food spoilers and pathogens (seven bacteria and four fungi). Photoantimicrobial assays were performed at FA concentrations below the MIC. The MIC of the isomerized FA, consisting of 93% cis-form and 7% trans-form, was very similar to that of the commercially available FA (trans-form). Irradiation with UV-A (1.0 J cm-236 ) in the presence of 100 mg l-1 37 FA resulted in enhanced reducing of all of the tested bacterial strains. A combination of UV-A (10 J cm-2) and 1000 mg l-1 38 FA resulted in enhanced reducing of Saccharomyces cerevisiae and one of the tested filamentous fungi. These results demonstrated that the combination of a short-term application of UV-A and FA at a low concentration yielded synergistic enhancement of antimicrobial activity, especially against bacteria.
掲載誌名
Letters in Applied Microbiology
ISSN
02668254
1472765X
cat書誌ID
AA10462245
AA11629696
出版者
Wiley
64
2
開始ページ
96
終了ページ
102
発行日
2017-01-12
権利情報
© 2016 The Society for Applied Microbiology
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
著者版
部局
生物資源系