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KMID : 1234420110390040350
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Korean Journal of Microbiololgy and Biotechnology
2011 Volume.39 No. 4 p.350 ~ p.356
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Analysis of Constituents in Sipjundaebo-tangs Fermented by Lactic Acid Bacteria
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Yang Min-Chul
Ma Jin-Yeul
Jung Sang-Won
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Abstract
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The purpose of this study was to investigate changes in the contents of constituents in Sipjundaebo-tang (SJ) and its fermentations (FSJ) with 8 species of lactic acid bacteria. Eight strains of lactic acid bacteria, Lactobacillus casei KFRI129, L. plantarum KFRI 144, L. curvatus KFRI 166, L. hilgardii KFRI 229, L. delbruekil subsp. lactis KFRI 442, L. casei KFRI 692, L. gasseri KCTC 3163, and Bifidobacterium breve KFRI 744, were utilized for the fermentation of Sipjundaebo-tang. As a result we identified three constituents which increased and two constituents which decreased. The increased constituents were isolated by chromatographic techniques and then their structure elucidated using NMR and MS. The decreased constituents were confirmed by comparing standard compounds. These compounds were quantitatively analyzed using the HPLC/DAD system. The increased constituents were identified to be cinnamyl alcohol (1), liquiritigenin (3), and nodakenetin (5), while the decreased constituents were liquiritin (2) and nodakenin (4). Generally, liquiritin (2) and nodakenin (4) were noted as having decreased in fermented Sipjundaebo-tangs (FSJs), while cinnamyl alcohol (1), liquiritigenin (3), and nodakenetin (5) were seen to have increased. Sipjundaebo-tang fermented by L. plantarum KFRI144 exhibited the most remarkable changes in all of fermentations. The eight lactic acid bacteria all demonstrated differing decomposable rates on the five maker compounds in fermented Sipjundaebo-tang (FSJ).
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KEYWORD
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Sipjundaebo-tang, fermentation, cinnamyl alcohol, liquiritigenin, nodakenin, HPLC/DAD
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