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KMID : 0613820160260040446
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Journal of Life Science
2016 Volume.26 No. 4 p.446 ~ p.452
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Biological Activities of Solid-fermentation Garlic with Lactic Acid Bacteria
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Lee Jung-Bok
Joo Woo-Hong
Kwon Gi-Seok
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Abstract
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Garlic (Allium sativum L.) and its extracts have been used in a wide range of applications, including as folk medicines in many Asian countries. This traditional herb has several functional properties and strong biological activities, making it useful as a functional food material. This study investigated the biological activities of solid-garlic after fermentation by lactic acid bacteria. Several solid-garlic fermentation strains of lactic acid bacteria were isolated from Korean traditional fermented food or obtained from the Korean Collection for Type Cultures. Lactic acid bacteria showed selective growth in garlic extracts on MRS media. Fermentation of solid garlic (heated 121℃, 15 min or not heated) by lactic acid bacteria gave total polyphenol and flavonoid contents of 731.0-845.2 g/g and 92.68-413.58 g/g, respectively. The DPPH scavenging activities and SOD like activities were measured as 7,584% and 9499%, respectively. These activities were relatively higher than a positive control, vitamin C. Measurement of antidiabetic activity using α-glucosidase inhibition assay showed that solid garlic fermented with lactic acid bacteria gave a higher activity than the control, acarbose. Fermentation of solid garlic with lactic acid bacteria may therefore help to alleviate adverse biological activities, as well as provide functional food materials.
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KEYWORD
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Antioxidant activity, fermentation, functional food, garlic, probiotics
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