• Journal of Life Science
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• v.20 no.5
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• pp.768-774
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• 2010

In this study, we investigated the antioxidant activities, alcohol metabolizing activities, nitrite scavenging ability, angiotensin converting enzyme (ACE), and elastase inhibitory effects of hot water extract from Makgeoly (HWM). Antioxidant activities were measured by using 2,2.diphenyl.1.picryl.hydrazyl (DPPH) free radical scavenging activity and SOD (superoxide dismutase).like activity. The DPPH radical scavenging activity and SOD.like activity of HWM were remarkably increased in a dose.dependent manner and were 48.0% and 98.7% at 10 mg/ml, respectively. To determine the influence of HWM on alcohol metabolizing activity, the generating activities of reduced.nicotinamide adenine dinucleotide (NADH) by alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) were measured. The facilitating rates of ADH and ALDH activity by HWM were remarkably increased in a dose.dependent manner and were 70.2% and 64.1% at 10 mg/ml, respectively. The inhibitory activity against angiotensin converting enzyme (ACE) of HWM was increased in a dose.dependent manner and was 74.2% at 10 mg/ml. The nitrite scavenging ability of HWM showed the most remarkable effect at pH 1.2 and 2 mg/ml. These results indicated that HWM may have valuable biological properties owing to their antioxidant activities, ADH and ALDH activity, nitrite scavenging ability, and ACE inhibitory activity.

• Journal of the Korean Society of Food Science and Nutrition
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• v.37 no.3
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• pp.288-293
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• 2008

In this study, we investigated the anticancer activity of Makgeoly (MG). MG was fractionated into four fractions by using solvent partition method, affording hexane (MGH), methanol (MGM), butanol (MGB) and aquous (MGA) soluble fractions. We determined the cytotoxicity of these four fractions in four kinds of cancer cell lines, such as HepG2, MCF-7, B16-F10 and HT29 by MTT assay. Among the various fractions, the MGM showed the strongest cytotoxic effects on all cancer cell lines. The morphological changes such as membrane shrinking and blebbing of cells were also observed by MGM treatment in HepG2 cell. In addition, we observed quinone reductase (QR) activity stimulating effects in all fraction layers of MG on HepG2 cells. QR activity increased approximately 2.6 and 2.1 times in MGM and MGH treated HepG2 cell at $100{\mu}g/mL$, respectively, compared to that in control value. Although further studies are needed, the present work could suggest that the fin of MG has a potential to be used as a chemopreventive agent against cancer.