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All Journal Biology, Medicine, & Natural Product Chemistry
Aldina, Devana Rahma
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Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology Public Health

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Phytochemical Screening and Determination of Total Flavonoid Content of Keji Beling Leaves Ethanol Extract (Strobilanthes crispa Bl.) Mahyantika, Seftya Putri; Husain, Muhammad Hafizh; Nirwana, Linggar; Aldina, Devana Rahma; Gemilang, Satria; Nafisa, Nafisa; Ramadhan, Majida; Sjakoer, Nour Athiroh Abdoes; Faisal, Faisal
Biology, Medicine, & Natural Product Chemistry Vol 14, No 1 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.141.219-224

Abstract

This study aims to determine the total flavonoid content in the ethanol extract of keji beling (Strobilanthes crispa) leaves using the UV-Vis spectrophotometric method with AlCl3 reagent. The research process includes maximum wavelength testing, preparation of quercetin standard solution, and analysis of total flavonoid levels. The results showed that the total flavonoid content in the extract was 144.347 ± 134.854 mg QE/g extract, with an extract yield of 0.4% and extract moisture content of 5.256%, which showed good potential in preventing the growth of microorganisms. Phytochemical screening revealed the presence of alkaloids, flavonoids, and tannins, while saponins, triterpenoids, and steroids were not detected. These findings confirm the importance of secondary metabolite compounds in plants and the potential of keji beling leaf extract as a source of active compounds with health benefits, including antioxidant and antibacterial activities. This study provides a basis for further research into the medical applications of this plant extract.
Antioxidant Activity Test of Bride's Tears (Antigonon leptopus) Leaves Using the DPPH Method Azizah, Nailil Wafiq; Ramadan, Majidah; Faisal, Faisal; Aldina, Devana Rahma; Putri, Ramadina Novia; Anggraini, Nur Laila; Mufarrohah, Sabilatul; Gemilang, Satria; Fitriansyah, Firadika; Hosiyah, Hosiyah; Suci, Nuvia Harini Wulan; Sofiya, Nihlatus; Januarista, Terra; Rafsanjani, Ramizard
Biology, Medicine, & Natural Product Chemistry Vol 14, No 2 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.142.777-781

Abstract

Bridal tear leaves can be used to treat various health and beauty problems because they contain various active compounds, such as flavonoids, saponins, and tannins. These compounds have antioxidant, anti-inflammatory, and antibacterial properties. This flower contains antioxidants that can help protect the skin from damage caused by free radicals. This research aims to see the effectiveness of antioxidants from bridal tear leaves. The research method involves leaf extraction using 96% ethanol and testing antioxidant activity using the DPPH method. The research results showed that the extract sample from bride's tear leaves was (IC50 – 69.7146 ug/mL). This shows that the bride's tear leaf extract is quite strong in inhibiting free radical reactions.
Co-Authors Anggraini, Nur Laila Azizah, Nailil Wafiq Faisal Faisal Fitriansyah, Firadika Gemilang, Satria Hosiyah, Hosiyah Husain, Muhammad Hafizh Januarista, Terra Mahyantika, Seftya Putri Mufarrohah, Sabilatul Nafisa, Nafisa Nirwana, Linggar Nour Athiroh Abdoes Sjakoer Putri, Ramadina Novia Rafsanjani, Ramizard Ramadan, Majidah Ramadhan, Majida Sofiya, Nihlatus Suci, Nuvia Harini Wulan