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Year : 2019  |  Volume : 12  |  Issue : 3  |  Page : 123-129

Isolation and structural elucidation of antifungal compounds from Curcuma amada

1 The United Graduate School of Agricultural Sciences, Kagoshima University, Japan
2 Faculty of Agriculture, University of the Ryukyus, Japan
3 The United Graduate School of Agricultural Sciences, Kagoshima University; Faculty of Agriculture, University of the Ryukyus, Japan

Correspondence Address:
Md. Amzad Hossain
Professor, Subtropical Field Science Center, Faculty of Agriculture, University of the Ryukyus, Senbaru-1, Nishihara City, Okinawa 903-0213
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1995-7645.254938

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Objective: To isolate and identify the antifungal compounds from Curcuma amada. Methods: The antifungal activity was measured by the diameter of colonies grown on Petri dish, microscopic observation, and CLSI microdilution methods. The antifungal compounds were isolated through bioactivity guided purification by using silica gel and high-performance liquid chromatography. Structural identification of the antifungal compounds was conducted using 1H NMR, 13C NMR, and liquid chromatography-tandem mass spectrometry. Results: The purified antifungal compounds were zederone and furanodienone. These two compounds showed dose-dependent antifungal activity against Fusarium solani sensu lato. The concentration required for 50% growth inhibition (IC50) of FSSL ranged from 115 to 129 μM and 82 to 91 μM for zederone and furanodienone, respectively. Conclusion: This study suggested that the isolated compounds from Curcuma amada could be promising natural antifungal agents to control the diseases caused by Fusarium solani sensu lato.

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