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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Biotropika
Kamila, Fairuz Sarah
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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Journal : Biotropika

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Antioxidant Properties and Quantification of Phenolic and Flavonoid Compounds in Alpinia purpurata (Viell.) K. Schum Ethanol Extract Djati, Muhammad Sasmito; Azerlyn, Defiona Rensia Naomi; Kusuma, Kavana Hafil; Rosyadah, Nuraini; Kamila, Fairuz Sarah; Annisa, Yuslinda; Christina, Yuyun Ika; Dwijayanti, Dinia Rizqi; Widodo, Nashi
Biotropika: Journal of Tropical Biology Vol. 13 No. 1 (2025)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2025.013.01.02

Abstract

Phenolic and flavonoid compounds have been found to have positive benefits due to their antioxidant activity. Alpinia purpurata (Viell.) K. Schum, or lengkuas merah, is known to have aromatic rhizomes and is rich in active compounds such as flavonoids and phenolics. This research aimed to investigate the total phenolic and flavonoid content of A. purpurata ethanol extract and its antioxidant activity. A. purpurata was extracted using Microwave-Assisted Extraction (MAE) with 97% ethanol solvent. The ethanol extract of A. purpurata was then analyzed for the total phenolic and flavonoid content. The antioxidant activity and nitric oxide (NO) levels were determined by DPPH and NO scavenging assay, respectively. The results showed that A. purpurata ethanol extract had a high phenolic content (148.76 ± 1.03 mg GAE.g-1extract) but weak DPPH scavenging activity (IC50 of 219.06 ± 8.15 µg.mL-1), indicating that high phenolic content does not necessarily correlate with strong antioxidant properties. In contrast, the extract exhibited strong NO scavenging activity with an IC50 of 22.73 ± 7.57 µg.mL-1. Despite its high phenolic content, the weak DPPH activity indicates that total phenolic concentration alone is not always a reliable indicator of antioxidant strength. Further studies should include additional antioxidant assays to comprehensively evaluate the extract’s antioxidant potential.
Virtual Based Screening of Rosmaniric Acid and Its Derivatives as Potential Anticancer Approach Targeting HIF-1a Naufal, Achmad Hanif; Wachid, Nisa Nabila Aufa; Kamila, Fairuz Sarah; Wahyuningsih, Nadia; Ilmiyah, Silvi Zakiyatul; Nafisah, Wirdatun; Fatchiyah, Fatchiyah
Biotropika: Journal of Tropical Biology Vol. 13 No. 1 (2025)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2025.013.01.03

Abstract

Cancer is one of the leading causes of death in the world. Rosmarinic acid becomes one of the important polyphenolic compounds. It includes derivatives of two amino acids, caffeic acid from phenylalanine and 3,4-dihydroxyphenyl-lactic acid from tyrosine, secondary metabolites found in many herbal plants from the subfamily Lamiaceae and Boraginaceae. Rosmarinic acid works in inhibiting the occurrence of metastases and tumor formation. In this study, we evaluated rosmarinic acid and its derivatives through study literature. The compounds were downloaded from the PubChem database, while the three-dimensional structure of HIF-1a was retrieved from RCSB PDB. The biological activity was analyzed using the PASS server, and the cytotoxic effect was predicted using CLC-Pred., The pharmacological properties of bioactive compounds were analyzed using SwissADME. The compounds and HIF-1a were prepared using PyRx 0.8 version and Discovery Studio software, docked specifically using Autodock Vina, visualized using Discovery Studio software, and molecular dynamic simulation using CABS-flex 2.0. Rosmarinic acid and its derivative showed an inhibition with the highest affinity value of compound against HIF-1a are control (-6.9 kcal/mol), Rosmarinic acid (-6.4 kcal /mol), and Methyl rosmarinate (-6.3 kcal/mol). Rosmarinic acid could be expected to have activity as an inhibitor modulated at the post-translational level. Comprehensive and further analysis is required in future research based in vivo and in vitro for the development of cancer treatments.
Co-Authors Annisa, Yuslinda Azerlyn, Defiona Rensia Naomi Dinia Rizqi Dwijayanti fatchiyah . Grahadi, Rahmat Hermanto, Feri Eko Ilmiyah, Silvi Zakiyatul Kusuma, Kavana Hafil Moch Sasmito Djati Nafisah, Wirdatun Nashi Widodo Naufal, Achmad Hanif Rosyadah, Nuraini Siti Mariyah Ulfa Wachid, Nisa Nabila Aufa Wahyuningsih, Nadia Widyananda, Muhammad Hermawan Yuyun Ika Christina