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Year : 2011  |  Volume : 7  |  Issue : 27  |  Page : 207-212

The alteration of components in the fermented Hwangryunhaedok-tang and its neuroprotective activity

Department of Biomaterials Engineering, Division of Bioscience and Biotechnology, Kangwon National University, Chuncheon 200-701, Republic of Korea

Correspondence Address:
Choong Je Ma
Department of Biomaterials Engineering, Division of Bioscience and Biotechnology, Kangwon National University, Hyoja-2 Dong, Chuncheon 200-701
Republic of Korea
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Source of Support: Grant [K09040] from the Korea Institute of Oriental Medicine, Conflict of Interest: None

DOI: 10.4103/0973-1296.84234

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Background: Hwangryunhaedok-tang is a traditional herbal prescription that has sedative activity, hypotensive and anti-bacterial effects. Objective: In this study, we investigated the alteration of contents of components in Hwangryunhaedok-tang, antioxidant activity and neuroprotective activity by fermentation with Lactobacillus acidophilus KFRI 128. Materials and Methods: Contents of three marker compounds (geniposide, berberine and palmatine) and unknown compounds in the Hwangryunhaedok-tang (HR) and the fermented Hwangryunhaedok-tang (FHR) were measured and compared using the established high-performance liqued chromatograph coupled with a photodiode (HPLC-DAD) method. The antioxidant activity of HR and FHR were determined by DPPH free radical and hydrogen peroxide (H2 O2 ) scavenging assay. Also, the neuroprotective activities of HR and FHR against glutamate-induced oxidative stress in a mouse hippocampal cell line (HT22) were evaluated by MTT assay. Results: The contents of geniposide and palmatine were decreased but the content of berberine was increased in the FHR. And the contents of unknown compounds (1), (2), (3), (4) and (5) in the HR were altered by fermentation. Electron donating activity (EDA, %) value of FHR was higher than HR for DPPH radical scavenging activity and H2O2 scavenging activity, respectively. In the MTT assay, FHR showed more potent neuroprotective activity than HR by 513.90%. Conclusion: The FHR using microorganism could convert compounds in HR and enhance the antioxidant and neuroprotective activity.

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