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All Journal HAYATI Journal of Biosciences JIKSI (Jurnal Ilmu Komputer dan Sistem Informasi) CHEMPUBLISH JOURNAL JOURNAL ONLINE OF PHYSICS Pendas : Jurnah Ilmiah Pendidikan Dasar Journal of International Multidisciplinary Research Journal of The Indonesian Society of Integrated Chemistry Holistik Analisis Nexus
Nelson
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Mathematics Physics Other

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Journal : CHEMPUBLISH JOURNAL

 1 
Sintesis dan karakterisasi fotokatalis ZnO/karbon aktif dan aplikasinya pada degradasi rhodamin B Restina Bemis; Nelson; Ngatijo; Siti Nurjanah; Nur'aini Maghviroh
CHEMPUBLISH JOURNAL Vol. 4 No. 2 (2019): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v4i2.7936

Abstract

Telah dilakukan sintesis dan karakterisasi ZnO/karbon aktif sebagai fotokatalis untuk mendegradasi rhodamin B. Fotokatalis ZnO/karbon aktif disintesis menggunakan motode solid state menggunakan prekursor Zn(NO3)2.4H2O dan karbon aktif dari tempurung kelapa. Pola difraksi XRD menunjukkan bahwa fotokatalis ZnO/karbon aktif memiliki struktur heksagonal wurzite yang sesuai dengan standar COD- Inorg No. 96-900-4180 dengan kristal berukuran 0,12 µm. Hasil UV-Vis menunjukkan ZnO memiliki nilai energi celah pita (band gap energy, Eg) sebesar 3,12 eV dan hasil SEM menunjukkan morfologi permukaan berbentuk tidak beraturan dan mangalami mengalami aglomerasi. Analisis EDS pada ZnO dan ZnO/karbon aktif memberikan persentase massa elemen Zn= 59,4%; O= 38,6% dan Zn= 66,9%; O=23,6%; C=7,8%. Hasil uji aktivitas fotokatalitik menunjukkan bahwa kondisi optimum degradasi rhodamin B 10 ppm memerlukan 200 mg fotokatalis ZnO/karbon aktif dan waktu radiasi sinar UV selama 90 menit. Fotokatalis ZnO/karbon aktif efektif dalam mendegradasi zat warna rhodamin B pada kondisi optimumnya dengan persentase degradasi sebesar 86,84%. Dari data analisis LC-MS menunjukkan terjadi degradasi molekul rhodamin B (m/z= 442,88) membentuk senyawa intermediet dengan perbandingan rasio massa dan muatan sebesar 387,30; 359,01; 331,12; 132,79 dan 117,03 m/z.
Flavonoid Compounds from Ethanol Extract of Sungkai Leaves (Peronema canescens. Jack) and Antibacterial Activity Test Against Staphylococcus epidermidis and Escherchia coli Susanto, Nindita Clourisa Amaris; Ardhica, Jammes; Nelson; Latief, Madyawati
Chempublish Journal Vol. 6 No. 4 (2022): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v6i4.41653

Abstract

The rise of antibiotic-resistant bacteria has intensified the global search for alternative antimicrobial agents, particularly from natural sources. Traditional medicinal plants have been widely recognized for their therapeutic potential, and Peronema canescens Jack is well-known to contain bioactive compounds. Among its pharmacological properties, its antibacterial potential has drawn scientific interest. Secondary metabolites such as flavonoids, tannins, and phenolics are believed to contribute to its antimicrobial activity. However, the specific antibacterial compounds in P. canescens remain largely unidentified. This study seeks to isolate and characterize antibacterial compounds from the ethanol extract of Sungkai leaves, aiming to discover new natural antibacterial agents. The research objectives include isolating antibacterial compounds using maceration extraction and fractionation, conducting phytochemical screening to identify metabolite classes, assessing antibacterial activity using the paper disc diffusion method, and characterizing bioactive isolates through UV-Vis spectrophotometry and FTIR analysis. The results indicate that the ethyl acetate fraction of the ethanol extract of P. canescens leaves exhibits significant antibacterial activity, particularly at concentrations of 500 and 1000 ppm. UV-Vis spectrophotometric analysis identified flavonoid compounds, including apigenin, flavones, and flavonols, based on characteristic absorption peaks. FTIR analysis confirmed the presence of functional groups associated with flavonoids, supporting their antibacterial potential. These findings highlight P. canescens as a promising source of natural antibacterial agents. Further studies focusing on compound purification and in vivo antibacterial testing are recommended to explore its pharmaceutical applications.
Antioxidant Activity of Bioactive Compounds in the Ethyl Acetate Extract of Putat Leaves (Planchonia valida) Nelson; Silaban, Desy Vania; Farid, Faizar; Puspitasari, Ratih Dyah; Tarigan, Indra Lasmana; Ramadhan, Ilham Ifandi; Latief, Madyawati
Chempublish Journal Vol. 6 No. 4 (2022): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v6i4.41632

Abstract

The Putat leaf (Planchonia valida) is a plant traditionally used by the community in the Tanjung Lanjut area, Jambi, both as a salad ingredient and as a traditional medicine to treat skin diseases and promote health. This identifies that the putat plant contains chemical compounds that potentially have antioxidant activity. In this study, putat leaf samples (Planchonia valida) that potentially have antioxidant activity. In this study, Planchonia valida (P. valida) leaf samples using n-hexane and ethyl acetate solvents through a multistep maceration process. Subsequently, phytochemical screening and antioxidant activity tests were conducted to obtain information about fractions that have the potential to be further isolated. The extraction percentage with a yield value of 1,28% was obtained in the maceration process. Further isolation was carried out using isolate liquid chromatography and FT-IR instruments. The obtained isolate was in the form of a wet solid, and through characterization, it was classified as a steroid compound suspected to be ergosterol. Free radicals or oxidants have reactive effects on the human body and can trigger various types of diseases. Antioxidants are known to have the ability to inhibit or neutralize free radicals in the human body. This study tested antioxidant activity using the DPPH (1,1-diphenyl-1,1-picrylhydrazyl) method on isolating F1. Isolate F1 was found to have antioxidant activity with a value of 714.637 ppm, falling into the range of weak antioxidant activity
Co-Authors Afrianto, Muhammad Ficky Alfi Khatib, Alfi Ananda, Hertanti Dwi Ardhica, Jammes Bela, Anisa Dewi, Tribuana Tungga Dina Hajja Ristianti Faizar Farid Finnia Li Frastica Deswardani Helga Dwi helga dwi fahyuan Indra Lasmana Tarigan Jessen Chayadi Madyawati Latief Mardian Peslinof Mega Fitri Muhammad Idris Ngadri Ngatijo Nofita Sari Nur'aini Maghviroh Nuralang Nurhidayah Nurhidayah Prabawa, Satria Puspitasari, Ratih Dyah Ramadhan, Ilham Ifandi Reni Dianti Rukmini Restina Bemis Richard Christian Silaban, Desy Vania SITI NURJANAH Sukma Eka Wijaya Susanto, Nindita Clourisa Amaris Syamsul Arifin Valentino Almendo Radjawane Wiwik Damayanti Yusnaidar, Yusnaidar