Antioxidant Activity of Endophytic Fungi Isolated from Cashew (Anacardium occidentale) Leaves http://www.doi.org/10.26538/tjnpr/v7i12.18

Main Article Content

Fenny P. Permatasari
Elfita
Hary Widjajanti
Ferlinahayati
Poedji L Hariani
Rian Oktiansyah

Abstract

Cashew (Anacardium occidentale) is a plant used by Indonesian people a traditional medicine. The leaves are consumed as fresh vegetables and to treat various diseases. Endophytic fungi can live symbiotically in plant tissue and have the ability to produce substances called secondary metabolites. The research aims to isolate endophytic fungi from cashew leaves and identify them morphologically and molecularly as well as identify the secondary metabolite from the most active antioxidant extract. The identification of endophytic fungal species was done using morphological and molecular techniques. Both the culture and extraction processes used Potato Dextrose Broth (PDB) media and ethyl acetate as a solvent. The ethyl acetate extract, which is included in the strong antioxidant category, was continued to the stage of isolating the pure compound and then its chemical structure was analyzed using spectroscopic methods. A total of eight endophytic fungus (RDM1-RDM8) were found on cashew leaves. Ethyl acetate extract from the endophytic fungi RDM4 has the strongest antioxidant activity with an IC50= 13.80 µg/mL. Morphological and molecular identification through phylogenetic analysis shows that RDM4 is Neopestalotiopsis clavispora. This endophytic fungus produces 5-isopropyl-4-methylfuran-2-one as a secondary metabolite. Ethyl acetate extract of the Neopestalotiopsis clavispora has more potential to be developed as a new source of antioxidants than the pure compound because it is thought that there is a synergistic effect between the compound components contained in the extract.

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How to Cite
Permatasari, F. P., Elfita, Widjajanti, H., Ferlinahayati, Hariani, P. L., & Oktiansyah, R. (2023). Antioxidant Activity of Endophytic Fungi Isolated from Cashew (Anacardium occidentale) Leaves: http://www.doi.org/10.26538/tjnpr/v7i12.18. Tropical Journal of Natural Product Research (TJNPR), 7(12), 5486-5494. https://tjnpr.org/index.php/home/article/view/3182
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Articles
Author Biography

Rian Oktiansyah, Graduate School of Sciences, Faculty of Mathematics and Natural Sciences, University of Sriwijaya, Jl. Padang Selasa No. 524, Palembang 30129, South Sumatra, Indonesia

Universitas Islam Negeri Raden Fatah. Jl. Pangeran Ratu, 5 Ulu, Kecamatan Seberang Ulu I, Palembang 30267, South Sumatra, Indonesia.

How to Cite

Permatasari, F. P., Elfita, Widjajanti, H., Ferlinahayati, Hariani, P. L., & Oktiansyah, R. (2023). Antioxidant Activity of Endophytic Fungi Isolated from Cashew (Anacardium occidentale) Leaves: http://www.doi.org/10.26538/tjnpr/v7i12.18. Tropical Journal of Natural Product Research (TJNPR), 7(12), 5486-5494. https://tjnpr.org/index.php/home/article/view/3182

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