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All Journal JUSTER: Jurnal Sains dan Terapan Pharmaceutical Reports
Najla, Nabilah
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Biochemistry, Genetics & Molecular Biology Chemistry Energy Health Professions Immunology & microbiology Medicine & Pharmacology Physics

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Analisis Dampak Efek Rumah Kaca Terhadap Perubahan Suhu Udara Harian Di Lingkungan UIN Syarif Hidayatullah Jakarta Zhafira, Nasywa; Lestari, Anggun; Najla, Nabilah; Mahbubah, Lu’lu’ul
JUSTER : Jurnal Sains dan Terapan Vol. 5 No. 1 (2026): JUSTER: Jurnal Sains dan Terapan
Publisher : Jompa Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57218/juster.v5i1.2372

Abstract

Tujuan penelitian ini adalah untuk mempelajari bagaimana efek rumah kaca memengaruhi variasi suhu udara di kampus UIN Syarif Hidayatullah Jakarta setiap hari. Suhu udara di empat lokasi pengamatan yang berbeda diukur secara langsung. Ini adalah metode deskriptif kuantitatif yang digunakan dalam penelitian ini. Data dikumpulkan setiap pagi, siang, sore, dan malam selama tujuh hari berturut-turut. Hasil penelitian menunjukkan bahwa ada pola suhu harian yang konsisten; suhu pagi rata-rata berkisar antara 28 dan 29 derajat Celcius, meningkat hingga 32 hingga 37 derajat Celcius pada siang hari, menurun hingga sekitar 30°C pada sore hari, dan relatif stabil pada malam hari antara 27 dan 28°C. Suhu tertinggi terjadi pada siang hari di daerah yang didominasi oleh kepadatan bangunan. Daerah dengan ruang terbuka hijau dan lahan alami memiliki suhu yang lebih rendah. Variasi suhu secara spasial dan temporal ini menunjukkan faktor-faktor yang memengaruhi akumulasi panas, termasuk jenis tutupan lahan, intensitas aktivitas manusia, dan jumlah ruang terbuka hijau yang terbatas. Secara keseluruhan, temuan penelitian ini menunjukkan bahwa suhu udara di kampus dipengaruhi oleh efek rumah kaca dan lingkungan perkotaan.
Green Extraction of Cherry Flowers (Muntingia calabura L.) and Antioxidant Activity by Ferric Reducing Antioxidant Power Method Maryam, St; Baits, Muzakkir; Najla, Nabilah
Pharmaceutical Reports Vol 5, No 1 (2026): (March) Pharmaceutical Reports
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/pharmrep.v5i1.394

Abstract

The cherry plant (Muntingia calabura L.) is known as a versatile medicinal plant, with its leaves, fruits, and flowerstraditionally used for various therapeutic purposes. This plant contains several bioactive compounds, including flavonoids, tannins, triterpenes, saponins, and polyphenols, which play a crucial role in its antioxidant activity. The present study aimed to determine the antioxidant activity level of Muntingia calabura L. using the Ferric Reducing Antioxidant Power (FRAP) method. The ethanol extract of cherry plant material was obtained using the Microwave-Assisted Extraction (MAE) technique, which had been previously optimized to achieve the highest flavonoid yield through variations in temperature and extraction time, employing a green solvent system. The antioxidant activity was measured by the FRAP method, and the absorbance was recorded using a UV– Visible spectrophotometer at a wavelength of 715 nm. The results were expressed as milligrams of quercetin equivalent per gram of extract (mg QE/g) based on the absorbance data. The antioxidant activity values of the ethanol extract from three replications were 908.56 mg QE/g, 910.6 mg QE/g, and 955.5 mg QE/g, respectively, with an average value of 924.88 mg QE/g extract. These findings indicate that Muntingia calabura L. exhibits strong antioxidant potential, likely attributed to its high flavonoid and polyphenol content, and therefore has promising applications as a natural antioxidant source in traditional and modern medicine.
Co-Authors Lestari, Anggun Mahbubah, Lu’lu’ul Muzakkir Baits, Muzakkir St Maryam, St Zhafira, Nasywa