Article Per Year (5 Year)
p-Index From 2021 - 2026
1.037
P-Index
This Author published in this journals
All Journal Indonesia Chimica Acta ORBITA: Jurnal Pendidikan dan Ilmu Fisika Satera: Jurnal Sains dan Teknik Terapan Journal Of Chemical Process Engineering
Salawali, Rismul Trianto
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Physics

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
Identification of Anticancer and Antioxidant Potentials of Katang-Katang Flower Extract (Ipomea pes-caprae Linn) with Water Solvent Tamuddin, Yusriadi; Utami, Hermin Hardyanti; Husna, Saadatul; Lestari, Mega Fia; Salawali, Rismul Trianto; Towolioe, Sherly; Aras, Neny Rasnyanti M; Trifany, Andi Wahyu; Papriani, Nada Pertiwi
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 16, No 2: December 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/ica.v16i2.25353

Abstract

Cancer is a group of deadly diseases that attack human organs with an increasing number of cases and an increasing number of deaths from year to year. Free radicals as unstable molecules are one of the triggers for the emergence of cancer. Katang-katang or I. pes-caprae L. is a plant that could be found on almost all tropical coasts. So it has the potential to be developed as herbal medicine. This study used Flowers of I. pes-caprae L. as the research sample. This study aimed to identify the anticancer and antioxidant potential of the flower extract of I. pes-caprae L extracted with water as a solvent. This research included the phytochemical test of secondary metabolites, identification of anticancer potential based on the toxicity test using the Brine Shrimp Lethality Test (BSLT), and the antioxidant activity test using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. The results showed that the flower extract of I. pes-caprae L. from water solvent contained active compounds including alkaloids, flavonoids, tannins, saponins, and terpenoids. The extract also has the potential as an anticancer with an LC50 value of 170.8441 ppm and strong antioxidant activity with an IC50 value of 71.7895 ppm.
Kinetika Reaksi Pembakaran Biobriket Campuran Batubara Dengan Biomassa Salawali, Rismul Trianto; Zainuddin, Ibnu Munzir; Mandasini; Yani, Syamsuddin
Journal of Chemical Process Engineering Vol. 2 No. 2 (2017): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v2i2.892

Abstract

Briket adalah bahan bakar padat, maka didalam penyalaannya memerlukan waktu sedikit lebih lama dibandingkan dengan bahan bakar cair dan gas. Reaksi pembakaran dari bahan bakar padat berupa arang karbon dengan oksigen pada permukaan partikel akan menghasilkan karbon monoksida dan karbon dioksida. Sebelumnya ditimbang massa biobriket, biobriket yang telah jadi dimasukkan kedalam Reaktor, temperatur diset masing-masing campuran briket pada suhu 300°C sampai 350°C dan regulator dinyalakan, setelah temperature tercapai maka laju alir dialirkan dari tabung oksigen menuju Reaktor sebanyak 1 liter/menit. Kemudian dari hasil pembakaran yang terjadi didalam reaktor terjadi reaksi dimana C + O2 → CO2 + H2O yang kemudian akan diteruskan menuju Kondensor, pada proses kondensasi dihasilkan berupa kondensat yang dianggap H2O yang keluar dan gas yang akan menekan pada tangki penampung yang beisi air sehingga akan keluar air menuju penampungan gelas ukur, air yang keluar dianggap sebagai CO2, dicatat ketinggian volume kondensat dan gas selang waktu 10 menit sampai 60 menit, setelah itu ditimbang massa briket setelah pembakaran, prosedur ini diulangi untuk campuran biobriket lainnya. Berdasarkan hasil penelitian dapat disimpulkan bahwa temperatur optimum dalam proses pembakaran yaitu 300°C dengan nilai konstanta reaksi pada campuran batubara dengan biomassa kulit durian 14647.13/menit, tempurung kelapa 14400.24/menit, serbuk gergaji 15244.90/menit.
Physical-Chemical Characterization of Activated Charcoal from Coconut Shells as an Adsorbent in Reducing Ammonia (NH₃) Content in Nickel Industry Liquid Waste NIngrum, Resti Ayu; Salawali, Rismul Trianto; Arief, Maipha Deapati; A’Ban, Jamaluddin Gesrianto; Saparullah, Saparullah; Putri, Alfridha Dwi
Jurnal Sains dan Teknik Terapan Vol. 3 No. 1 (2025): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to evaluate the effectiveness of activated charcoal produced from coconut shells in reducing ammonia (NH3) levels in domestic wastewater. Liquid waste containing ammonia can cause environmental pollution and negatively impact ecosystems. Therefore, an efficient method is needed to reduce ammonia levels. In this study, activated charcoal was made through the carbonization process of coconut shells and tested for its ability as an adsorbent. The research was conducted experimentally with variations in the mass of activated charcoal of 600 mg, 800 mg, and 1 g. The research results show that coconut shell activated charcoal meets the specifications of Indonesian Industrial Standard (SNI No. 06-3730-1995) with a moisture content of 3%, ash content of 6%, volatile matter content of 14%, and pure activated carbon content of 77%. The reduction in ammonia content obtained was 59.76% for a mass of 600 mg, 61.1% for a mass of 800 mg, and 67.59% for a mass of 1 g. These results indicate that activated coconut shell charcoal has good potential as an adsorbent for the treatment of liquid waste containing ammonia. This research is expected to contribute to the development of more environmentally friendly waste treatment technologies and the sustainable use of local resources.
Utilization of Biomass Waste from Banana (Musa Paradisiaca) and Breadfruit (Artocarpus Communis) Peel for Development of Bio-Batteries Salawali, Rismul Trianto; Lestari, Sri Ayu; Nurhajawarsi; Yusriadi
Jurnal Sains dan Teknik Terapan Vol. 2 No. 1 (2024): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bio-batteries are one alternative as well as a solution to the limited use of electrical energy. Batteries that are widely used today are sourced from chemicals in the form of heavy metals such as mercury, lead, cadmium, and nickel, which can pollute the environment if not disposed of properly. Efforts to reduce the use of chemicals that pollute the environment need innovation to overcome the problem. This study aims to determine the formula for bio-batteries that have a long life. The method used is to mix banana peel and breadfruit peel that has been fermented with variations of b/vv (g/mmL) with a composition of 0, 25, 50, 75, and 100% at each concentration. The parameters observed in this study were pH and voltage measurements during the fermentation process for 7 days, and the bio-batteries that had been made were tested for potential differences in electric current, power, resistance, and durability. As a result, the optimum condition of the bio-battery was obtained in a mixture of 75% banana peel compared to 25% breadfruit peel by producing a potential difference of 1.37 V, an electric current of 1.5 mA, and a power of 0.68 mW. A bio-battery with a composition of 75% banana peel compared to 25% breadfruit peel can last a maximum of 31 hours and 28 minutes when used on a wall clock.  
Physical-Chemical Characterization of Activated Charcoal from Coconut Shells as an Adsorbent in Reducing Ammonia (NH₃) Levels in Industrial Liquid Waste Ningrum, Resti Ayu; Salawali, Rismul Trianto; Arief, Maipha Deapati; A'ban, Jamaluddin Gesrianto; Mahdiah, Mahdiah
Jurnal Sains dan Teknik Terapan Vol. 4 No. 1 (2026): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mengevaluasi efektivitas arang aktif yang dihasilkan dari tempurung kelapa dalam menurunkan kadar amonia (NH3) pada limbah cair domestik. Limbah cair yang mengandung amonia dapat menyebabkan pencemaran lingkungan dan berdampak negatif terhadap ekosistem. Oleh karena itu, diperlukan metode yang efisien untuk mengurangi kadar amonia. Dalam penelitian ini, arang aktif dibuat melalui proses karbonisasi tempurung kelapa dan diuji kemampuannya sebagai adsorben. Penelitian dilakukan secara eksperimental dengan variasi massa arang aktif sebesar 600 mg, 800 mg, dan 1 g. Hasil penelitian menunjukkan bahwa arang aktif tempurung kelapa memenuhi spesifikasi karbon aktif Standar Industri Indonesia (SNI No. 06-3730-1995) dengan kadar air 3%, kadar abu 6%, kadar zat terbang 14%, dan kadar karbon aktif murni 77%. Penurunan kadar amonia yang diperoleh adalah 59,76% untuk massa 600 mg, 61,1% untuk massa 800 mg, dan 67,59% untuk massa 1 g. Hasil ini menunjukkan bahwa arang aktif tempurung kelapa memiliki potensi yang baik sebagai adsorben untuk pengolahan limbah cair yang mengandung amonia. Penelitian ini diharapkan dapat memberikan kontribusi terhadap pengembangan teknologi pengolahan limbah yang lebih ramah lingkungan dan memanfaatkan sumber daya lokal secara berkelanjutan.
Analisis perubahan densitas dan viskositas minyak goreng bekas sebelum dan sesudah proses transesterifikasi secara termodinamika Ningrum, Resti Ayu; Salawali, Rismul Trianto; Silvany, Rika; Rizky, Putri
ORBITA: Jurnal Pendidikan dan Ilmu Fisika Vol 12, No 1 (2026): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/orbita.v12i1.39194

Abstract

Used cooking oil is a household waste that poses a significant environmental hazard if not properly managed. One promising approach to its utilization is transesterification, which converts the oil into biodiesel with physical properties that are more suitable for fuel applications. This study aimed to investigate the thermodynamic changes in the density and viscosity of used cooking oil before and after the transesterification process under different pH conditions and to determine the most efficient reaction condition based on the Gibbs free energy of activation (ΔG‡). A laboratory experimental design was employed using used cooking oil as the raw material. The oil was subjected to transesterification at five different pH levels (6, 7, 8, 9, and 10). The research samples consisted of untreated used cooking oil and the methyl ester products obtained after transesterification under each pH condition. A convenience sampling technique was applied. Density was measured using a pycnometer, whereas viscosity was determined using a viscometer. Thermodynamic parameters were subsequently calculated from the experimental data. Quantitative data analysis was performed by comparing the density and viscosity values before and after transesterification and by calculating the Gibbs free energy of activation (ΔG‡) for each pH condition. The results demonstrated that the density of used cooking oil decreased from 0.908 g/cm³ to 0.870–0.872 g/cm³, corresponding to a reduction of 0.028–0.042 g/cm³. Similarly, viscosity decreased markedly from 27 cP to 4.1–6.2 cP, representing a reduction of 20.8–22.9 cP. Thermodynamic analysis revealed that the Gibbs free energy of activation (ΔG‡) ranged from 99.84 to 102.17 kJ mol-1. The reductions in density and viscosity indicate that the transesterification process successfully converted used cooking oil into methyl esters (biodiesel) with physicochemical properties that more closely comply with fuel quality standards. Furthermore, pH significantly influenced the reaction rate and system stability during transesterification. Among the investigated conditions, pH 9 yielded the lowest Gibbs free energy of activation (99.84 kJ mol-1), indicating the most thermodynamically favorable and efficient reaction condition.
Co-Authors A'ban, Jamaluddin Gesrianto Aras, Neny Rasnyanti M Arief, Maipha Deapati A’Ban, Jamaluddin Gesrianto Husna, Saadatul Lestari, Sri Ayu Mahdiah Mahdiah Mandasini Mega Fia Lestari Ningrum, Resti Ayu Nurhajawarsi Papriani, Nada Pertiwi Putri, Alfridha Dwi Rizky, Putri Saparullah Saparullah Silvany, Rika Tamuddin, Yusriadi Towolioe, Sherly Trifany, Andi Wahyu Utami, Hermin Hardyanti Yani, Syamsuddin Yusriadi Yusriadi Zainuddin, Ibnu Munzir