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자료유형
학술저널
저자정보
Yu Jinhui (Institute of Crop Germplasm Resources Shandong Academy of Agricultural Sciences Jinan 250100 P.R. C) Geng Yun (Institute of Crop Germplasm Resources Shandong Academy of Agricultural Sciences Jinan 250100 P.R. C) Xia Han (Institute of Crop Germplasm Resources Shandong Academy of Agricultural Sciences Jinan 250100 P.R. C) Ma Deyuan (Institute of Crop Germplasm Resources Shandong Academy of Agricultural Sciences Jinan 250100 P.R. C) Liu Chao (College of Life Science Shandong Normal University Jinan 250100 P.R. China) Wu Rina (College of Food Science Shenyang Agricultural University Shenyang 110866 P.R. China) Wu Junrui (College of Food Science Shenyang Agricultural University Shenyang 110866 P.R. China) You Shengbo (Institute of Crop Germplasm Resources Shandong Academy of Agricultural Sciences Jinan 250100 P.R. C) Bi Yuping (Institute of Crop Germplasm Resources Shandong Academy of Agricultural Sciences Jinan 250100 P.R. C)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제32권 제4호
발행연도
2022.4
수록면
473 - 483 (11page)
DOI
10.4014/jmb.2111.11018

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In this study we investigated the effect of lactic acid bacteria (LAB) fermentation on the ingredients and anti-oxidant activity of Withania somnifera extract. Four strains of LAB could proliferate normally in medium containing W. somnifera extract after the pH reached 3.1~3.5. LAB fermentation increased the content of alcohols and ketones, endowing the extract with the characteristic aroma of fermentation. Compared to the control, the DPPH and ABTS free radical scavenging rates in the fermented samples were significantly improved, ranging from 48.5% to 59.6% and 1.2% to 6.4%. The content of total phenols was significantly increased by 36.1% during the fermentation of mixed bacteria. Moreover, the original composition spectrum of the extract was significantly changed while the differentially accumulated metabolites (DAMs) were closely related to bile secretion, tryptophan metabolism and purine metabolism. Therefore, LAB fermentation can be used as a promising way to improve the flavor and bioactivity of the extracts of W. somnifera, making the ferments more attractive for use as functional food.

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