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All Journal Communications in Science and Technology Ekonomica Sharia: Jurnal Pemikiran dan Pengembangan Ekonomi Syariah
Khoiriyah, Lu'luatul
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Economics, Econometrics & Finance Education Engineering Social Sciences Other

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Microwave-assisted extraction of eco-friendly surfactant from Jatropha curcas for sustainable solubilization of reactive dyes Aryanti, Nita; Khoiriyah, Lu'luatul; Nafiunisa, Aininu; Ratnawati; Widiasa, I Nyoman; Zakki, Abdurrahman; Adina, Alifia Rizki
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1636

Abstract

Natural surfactants derived from plant-based sources, such as saponins, remain underexplored. This study developed the extraction of saponins from Jatropha curcas leaves using microwave-assisted extraction (MAE) finding that the optimized condition of 3 min, 363.15 K, 30 mL/g ratio of extraction yielded the highest saponin content of 35.04 mg/g. The FTIR and HPLC analyses confirmed the structural similarity between the extract and commercial saponin. Additionally, the extracted saponins effectively solubilized Remazol Red RB and Blue TQ with solubilization efficiency increasing proportionally to the surfactant concentration. The surfactant properties of the extracted saponin were also confirmed by its ability to form foam and high critical micellar concentration, which revealed the potential for material valorization. This work demonstrated that the development of plant-based surfactants provides a sustainable alternative to synthetic surfactants. Moreover, valorizing natural materials contributes to the advancement of eco-friendly technologies, particularly in waste treatment and water purification applications.
THE IMPACT OF FINANCIAL RATIO INDICATORS ON PROFITABILITY IN SHARIA BANKS IN INDONESIA PERIOD 2019-2023 Mulyawisdawati, Richa Angkita; Khoiriyah, Lu'luatul; Inayati, Anindya Aryu; Imtihanah, Ani Nurul
Ekonomica Sharia: Jurnal Pemikiran dan Pengembangan Ekonomi Syariah Vol 11 No 1 (2025): Jurnal Ekonomica Sharia : Jurnal Pemikiran dan Pengembangan Ekonomi Syariah - Ag
Publisher : Sekolah Tinggi Ekonomi dan Bisnis Syariah (STEBIS) Indo Global Mandiri Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36908/esha.v11i1.1572

Abstract

This study aims to analyze the impact of financial ratios on the profitability of Sharia banks in Indonesia during the period 2019–2023. The financial ratios used in this research include Non-Performing Financing (NPF), Capital Adequacy Ratio (CAR), Financing to Deposit Ratio (FDR), Operational Efficiency Ratio (BOPO), and Net Operating Margin (NOM). Profitability is measured by Return on Assets (ROA). The research method employed is a quantitative approach with panel data analysis using secondary data obtained from the annual financial reports of Sharia Commercial Banks published by the Financial Services Authority (OJK). The results of the partial research (t-test) indicate that the CAR, FDR and NOM variables have positive and significant effect on profitability (ROA). Meanwhile, the NPF and BOPO variables do not have a significant effect on ROA.
Co-Authors Adina, Alifia Rizki Anindya Aryu Inayati I Nyoman Widiasa Imtihanah, Ani Nurul Nafiunisa, Aininu Nita Aryanti RATNAWATI Richa Angkita Mulyawisdawati, Richa Angkita Zakki, Abdurrahman