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http://dx.doi.org/10.4014/jmb.1606.06008

Relationship between Chemical Structure and Antimicrobial Activities of Isothiocyanates from Cruciferous Vegetables against Oral Pathogens  

Ko, Mi-Ok (Department of Food Bioengineering, Jeju National University)
Kim, Mi-Bo (Jeju Wellbeing Vegetables RIS System, Jeju National University)
Lim, Sang-Bin (Department of Food Bioengineering, Jeju National University)
Publication Information
Journal of Microbiology and Biotechnology / v.26, no.12, 2016 , pp. 2036-2042 More about this Journal
Abstract
We evaluated the potentials of 10 isothiocyanates (ITCs) from cruciferous vegetables and radish root hydrolysate for inhibiting the growth of oral pathogens, with an emphasis on assessing any structure-function relationship. Structural differences in ITCs impacted their antimicrobial activities against oral pathogens differently. The indolyl ITC (indol-3-carbinol) was the most potent inhibitor of the growth of oral pathogens, followed by aromatic ITCs (benzyl ITC (BITC) and phenylethyl ITC (PEITC)) and aliphatic ITCs (erucin, iberin, and sulforaphene). Sulforaphene, which is similar in structure, but has one double bond, showed higher antimicrobial activity than sulforaphane. Erucin, which has a thiol group, showed higher antimicrobial activity than sulforaphane, which has a sulfinyl group. BITC and iberin with a short chain exhibited higher antimicrobial potential than PEITC and sulforaphane with a longer chain, respectively. ITCs have strong antimicrobial activities and may be useful in the prevention and management of dental caries.
Keywords
Cruciferous vegetables; isothiocyanates; radish root hydrolysate; antimicrobial activity; oral pathogens;
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