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All Journal BIOMA : Jurnal Biologi Makassar Jurnal Biologi Tropis
Nastiti Wijayanti
Fakultas Biologi, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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PENGHAMBATAN CYTHOPHATIC EFFECT (CPE) PADA SEL BHK-21 YANG TERINFEKSI VIRUS DENGUE SEROTIPE 4 (DENV-4) DENGAN PEMBERIAN EKSTRAK N-HEKSAN STREPTOMYCES SP. GMR22 Diani Mentari; Jaka Widada; Tri Wibawa; Nastiti Wijayanti
BIOMA : JURNAL BIOLOGI MAKASSAR Vol. 5 No. 2 (2020)
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/bioma.v5i2.10292

Abstract

Negara tropis seperti Indonesia sangat berpotensi sebagai tempat berkembangnya berbagai penyakit menular berbahaya salah satunya Demam Berdarah Dengue (DBD) yang disebabkan oleh infeksi virus dengue. Variasi genetik pada serotipe virus dengue menyebabkan penyakit ini menjadi perhatian dunia medis karena menyebabkan kompleksitas respon imun yang berbeda. Vaksin Dengue (Denvaxia) diperkenalkan oleh WHO pada akhir tahun 2015, namun penggunaannya belum sepenuhnya efektif. Hal ini menyebabkan banyak peneliti berupaya untuk mencari senyawa bioaktif yang memiliki potensi untuk dikembangkan sebagai agen antiviral. Streptomyces sp. GMR22 diketahui menghasilkan senyawa bioaktif dengan spektrum yang luas. Ekstrak n-heksane Streptomyces sp. GMR22 memiliki nilai CC50 yang tidak terlalu tinggi dibandingkan dengan ekstrak Etil Asetat. Hal ini menyebabkan metabolit sekunder yang dihasilkan dapat digunakan untuk analisis lanjut seperti uji antivirus karena aman terhadap sel BHK-21 yang merupakan host virus dengue. Virus DENV-4 merupakan serotipe endemik di Asia Tenggara. Penelitian ini bertujuan untuk mengetahui aktivitas antivirus DENV-4 menggunakan ekstrak n-heksan Streptomyces sp. GMR22. Aktivitas antivirus dilakukan melalui pengamatan sel BHK-21. Hasil pengamatan morfologi sel BHK-21 terinfeksi virus DENV-4 menunjukkan bahwa pemberian ekstrak n-heksan Streptomyces sp. GMR22 mengurangi terbentuknya Cythophatic Effect (CPE). Namun penggunaan konsentrasi 40 µg/mL menyebabkan kematian pada sel BHK-21. Kata kunci:  antiviral, DENV-4, metabolit sekunder,  Streptomyces sp. GMR22, CPE
Metabolite profiling of agarwood (Gyrinops versteegii (Gilg.) Domke) leaves from difference growth locations using Thin Layer Chromatography Dwi Indriani Manurung; Lisna Hidayati; Nastiti Wijayanti; Tri Rini Nuringtyas
Jurnal Biologi Tropis Vol. 21 No. 2 (2021): Mei - Agustus
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v21i2.2710

Abstract

Gyrinops versteegii (Gilg) Domke is an agarwood-producing plant originating from Eastern Indonesia. Leaves have antioxidant and anticancer activity due to their secondary metabolites. However, secondary metabolites are strongly influenced by the environment. This study aims to compare the terpenoid, phenolic, and flavonoid profiles of agarwood leaves grown in three locations, namely Bogor, Mataram, and Sambas using Thin Layer Chromatography (TLC), in order to obtain the most potential agarwood G. versteegii for further development as herbal medicine. Agarwood leaf powder was extracted using Soxhlet with 80% methanol as solvent, followed by liquid-liquid fractionation using chloroform and aquadest. The crude extract and the obtained fraction were subjected to metabolite profiling using TLC. Racing data factors from TLC were analyzed using hierarchical cluster analysis (HCA). The results showed that the Mataram sample produced higher yields for both extracts and fractions. TLC detected that the chloroform fraction contained more terpenoids, followed by phenolics and flavonoids, while the aqueous fraction contained the same number of positive bands for terpenoids and phenolics. In terms of origin, the Bogor sample showed six terpenoid positive bands higher than the other samples. A similar pattern was observed in the phenolics, while the flavonoids were the same for all samples. HCA resulted in Mataram being clustered separately from the Bogor and Sambas samples. Agarwood leaves from Mataram cannot be used to replace agarwood leaves from Bogor and Sambas as herbal ingredients.
Co-Authors Diani Mentari Dwi Indriani Manurung Jaka Widada Lisna Hidayati Tri Rini Nuringtyas Tri Wibawa