Claim Missing Document
Check
Articles

Found 3 Documents
Search

Analisis Robust Counterpart Open Capacitated Vehicle Routing Problem dalam Meningkatkan Penguasaan Topik Riset Optimasi dalam Masalah Pengangkutan Sampah bagi Mahasiswa di Palembang Fitri Maya Puspita; Aprilia Nur Sabana; Sisca Octarina; Evi Yuliza; Diyaz Rachmaningtiyaz; Adik Ahmadi
Jurnal Pengabdian Masyarakat Sains Indonesia Vol. 3 No. 2 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (609.623 KB) | DOI: 10.29303/jpmsi.v3i2.145

Abstract

Optimasi merupakan salah satu kajian dalam terapan Matematika yang bertujuan untuk mengoptimalkan suatu keadaan. Salah satu masalah yang dapat diaplikasikan dalam optimasi adalah masalah rute. Masalah nyata yang dapat diterapkan dalam kehidupan sehari-hari adalah permasalahan rute pengangkutan sampah. Pada permasalahan rute pengangkutan sampah dapat digunakan konsep Vehicle Routing Problem (VRP). Konsep optimasi pengangkutan sampah menggunakan konsep VRP merupakan salah satu konsep yang cukup populer di kalangan mahasiswa, namun konsep VRP sendiri tidak terlalu dibahas secara mendalam dalam perkuliahan. Oleh karena itu kegiatan ini bertujuan untuk memberikan pemahaman mahasiswa dalam menggunakan konsep VRP dalam masalah pengangkutan sampah.
Antibacterial Activity of Jackfruit Leaf (Artocarpus Heterophyllus LMK.) Ethanol Extract Gel on Propionibacterium acnes Fitrya Fitrya; Elsa Fitria Apriani; Adik Ahmadi; Dina Permata Wijaya; Khazanah Nurain
Ad-Dawaa: Journal of Pharmaceutical Sciences Vol. 6 No. 1 (2023)
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/djps.v6i1.37608

Abstract

Introduction: Artocarpus heterophyllus LMK. leaves contain flavonoids, tannins, and saponins, which have the potential to be antibacterial. Aims: This study aims to test the antibacterial activity of A. heterophyllus leaves ethanol extract, which is formulated in a gel preparation. Methods: Antibacterial testing was done on the acne-causing bacteria Propionibacterium acnes. The gel formula is designed with an extract concentration of 5, 10, or 15% with Carbopol 940 and HPMC as the bases. The antibacterial activity test was carried out using the well diffusion method. Result: The results of the study showed that the concentration of the extract affected pH, adhesive power, removability, and viscosity. Antibacterial activity tests showed that the gel of A. heterophyllus extract could inhibit Propionibacterium acnes bacteria. The higher the concentration of the extract, the greater the antibacterial activity. Conclusion: It can be concluded that the gel with an extract concentration of 15% gave the strongest antibacterial activity with an inhibition zone of 10.9 ± 1.18 mm.
SANCACO COFFEE SYINBIOTIC (PROBIOTIC AND PREBIOTIC) AND ANTIBACTERIAL ASSAY AGAINST Escherichia coli Miksusanti, Miksusanti; Adik Ahmadi; Syndi N.K; Dasril Basir; Heni Yohandini K
JURNAL RISET RUMPUN ILMU KESEHATAN Vol. 2 No. 1 (2023): April : Jurnal Riset Rumpun Ilmu Kesehatan
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrikes.v2i1.632

Abstract

Robusta coffee is one of the plants used as a drink and has an efficacious content that can be modified to be used as a cure for diarrhea. This research was conducted To determine the effect of synbiotic coffee with a combination of coffee, prebiotic inulin chicory, probiotic B. bifidum, and glucose on the growth and antibacterial activity of the probiotic Bifidobacterium bifidum BRL-130. Organoleptic testing of synbiotic coffee was performed on 30 panelists, then the growth test used the total plate count method, and the antibacterial test used the paper diffusion method. The organoleptic test showed that the selected formula 1 had the highest average taste of 3.76. In the symbiotic coffee growth test, the best results were obtained in week 1 of plain water with a temperature of 40°C with the number of colonies 5.95 x108 CFU/mL. Antibacterial activity test using paper disc diffusion method with a variation of the selected formula 1 treatment control, 2 treatment control pure robusta coffee powder, positive control of ciprofloxacin antibiotic, and negative control of aquadest solvent. The antibacterial activity of synbiotic coffee against E. coli showed that there was an inhibitory response in formula 1 against Escherichia coli bacteria in the first week of storage, 12.3±1.1 mm with strong criteria.