Identification of Antioxidants Produced by Lactobacillus plantarum

Yoko SUZUKI; Misa KOSAKA; Kazutoshi SHINDO; Toshiyuki KAWASUMI; Hiromi KIMOTO-NIRA; Chise SUZUKI

doi:10.1271/bbb.121006

Organic Chemistry Notes

Identification of Antioxidants Produced by Lactobacillus plantarum

Yoko SUZUKI, Misa KOSAKA, Kazutoshi SHINDO, Toshiyuki KAWASUMI, Hiromi KIMOTO-NIRA, Chise SUZUKI

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Keywords: 3-(4-hydroxyphenyl)lactic acid, indole-3-lactic acid, radical scavenger, antioxidant, Lactobacillus plantarum

JOURNAL FREE ACCESS

2013 Volume 77 Issue 6 Pages 1299-1302

DOI https://doi.org/10.1271/bbb.121006

View "Advance Publication" version (June 7, 2013).

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Abstract

We identified two compounds that demonstrated 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity from cultures of Lactobacillus plantarum. Spectroscopic analyses proved these compounds to be L-3-(4-hydroxyphenyl) lactic acid (HPLA) and L-indole-3-lactic acid (ILA). The respective EC₅₀ values for HPLA and ILA were 36.6 ± 4.3 mM and 13.4 ± 1.0 mM.

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