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KMID : 0545120030130030360
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Journal of Microbiology and Biotechnology
2003 Volume.13 No. 3 p.360 ~ p.365
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Conversion of Unsaturated Food Fatty Acids into Hydroxy Fatty Acids by Lactic Acid Bacteria
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Kim MH
Park MS/Chung CH/Kim CT/Kim YS/Kyung KH
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Abstract
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The ability of 19 lactic acid bacteria to produce hydroxy fatty acids (HFAs) from unsaturated food fatty acids (USFAs) was tested. HFAs are related to human ailments including steatorrhea. All the cultures produced HFAs from USFAs unless their growth was inhibited by free USFAs. Lactococcus lactis subsp. lactis KFRI 131 converted oleic linoleic and linolenic acid into 10-hydroxyoctadecanoic acid (10-HODA) 10-hydroxyoctadecaenoic acid (10-HODEA) and 10-hydroxyoctadecadienoic acid (10-HODDEA) respectively. Both a USFA and a surfactant were needed for the bacterium to convert the fatty acid into the corresponding HFA. It was apparent that the production of 10-HODA was growthrelated while that of 10-HODDEA was not. It was unclear whether the production of 10-HODEA was growth-related.
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