Phytophthora capsici L. is a fungus that causes stem rot in pepper plants. The provision of synthetic pesticides to control plants leaves residues that are harmful to the environment and human health. The plant-based fungicides are environmentally friendly and can be used as an alternative. The purpose of this study was to extract red galangal rhizome (Alpinia purpurata K.Schum) and determine its inhibitory activity against Phytophthora capsici L. In addition, identification of the active compounds contained in red galangal extract was carried out. The extraction method used is maceration and fractionation using vacuum liquid chromatography obtaining n-hexane fraction, ethyl acetate fraction , and ethanol fraction. The extract and fractions were determined their inhibitory activity against Phytopthora capsici L. The results showed that ethanol extract, ethyl acetate fraction, and ethanol fraction of red galangal were proven to inhibit the growth of the fungus Phytophthora capsici L. at any concentration. The best inhibitory activity of the fungus Phytophthora capsici L. was achieved by the ethyl acetate fraction at a concentration of 1.5% with an inhibition percentage value of 92.41% and classified as a very high activity level. Compounds that have the potential as antifungals in red galangal rhizome are flavonoids, saponins, phenolics, and terpenoids.
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12 December 2022
THE 4TH INTERNATIONAL SEMINAR ON CHEMICAL EDUCATION (ISCE) 2021
15 September 2021
Yogyakarta, Indonesia
Research Article|
December 12 2022
Natural fungicide of red galangal (Alpinia purpurata K. Schum) extracts against Phytophthora capsici L. on pepper plant (Piper nigrum L.)
Tatang Shabur Julianto;
Tatang Shabur Julianto
a)
1
Department of Chemistry, Faculty of Mathematics and Natural Science Universitas Islam Indonesia
, Sleman, Special Region of Yogyakarta, Indonesia
55584a)Corresponding author: [email protected]
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Rizky Ulfa Permata;
Rizky Ulfa Permata
1
Department of Chemistry, Faculty of Mathematics and Natural Science Universitas Islam Indonesia
, Sleman, Special Region of Yogyakarta, Indonesia
55584
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Amri Setyawati
Amri Setyawati
1
Department of Chemistry, Faculty of Mathematics and Natural Science Universitas Islam Indonesia
, Sleman, Special Region of Yogyakarta, Indonesia
55584
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a)Corresponding author: [email protected]
AIP Conf. Proc. 2645, 030024 (2022)
Citation
Tatang Shabur Julianto, Rizky Ulfa Permata, Amri Setyawati; Natural fungicide of red galangal (Alpinia purpurata K. Schum) extracts against Phytophthora capsici L. on pepper plant (Piper nigrum L.). AIP Conf. Proc. 12 December 2022; 2645 (1): 030024. https://doi.org/10.1063/5.0112875
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