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All Journal Indonesian Journal of Pharmaceutical and Clinical Research Dinamika Bahari: Journal of Maritime Dynamic
Nasri
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Biochemistry, Genetics & Molecular Biology Education Engineering Environmental Science Health Professions Immunology & microbiology Mechanical Engineering Medicine & Pharmacology Public Health Transportation

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Optimalisasi Kinerja MGPS Pada Sistem Pendinginan di Kapal MT. Ketaling Edgar Pratama; Nasri; Ali Imran Ritonga
Dinamika Bahari Vol 1 No 1 (2020): Edisi Mei 2020
Publisher : Politeknik Ilmu Pelayaran Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (584.76 KB) | DOI: 10.46484/db.v1i1.172

Abstract

Marine Growth Prevention System (MGPS) is an anti-fouling machine used to prevent excessive growth of marine biota and rust in the sea water cooling system. The purpose of this study was to determine the decline in MGPS performance factors, the impact of these factors, and the efforts made to optimize the performance of MGPS. The method used in this study is qualitative, using Fishbone and SHEL data analysis techniques. Fishbone is used to analyze possible problem factors and then analyze and categorize problem priorities using the SHEL technique. The results of the study concluded that the decline in MGPS performance was caused by inaccurate voltage regulation, the use of anodes that exceeded the age limit, sea water conditions or elements, and lack of knowledge of an engineer. This has an impact on the MGPS performance on the cooling system on the ship. To overcome these factors, operation and maintenance of MGPS machining must be based on a manual book, replace anodes that are over the age limit, and provide training to engineers about MGPS machining
Anti-Acne Activity From Biocellulose Mask Formula Containing (Aloe Vera (L.) Burm.F) Essence Combined With Vitamin E Fitri, Raissa; Reveny, Julia; Harahap, Urip; Dharmawan, Hariyadi; Nasri
Indonesian Journal of Pharmaceutical and Clinical Research Vol. 4 No. 1 (2021): Indonesian Journal of Pharmaceutical and Clinical Research
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/idjpcr.v4i1.5382

Abstract

Abstract. Biocellulose mask sheet is a new found pharmaceutical cosmetic design that widely commercial. Mostly due to it’s biodegradable properties, provide an eco-friendly waste. Combination of Aloe vera essence (AE) and Vit E to provide and determine it’s respective anti-acne properties in biocellulose mask form. Formulation of biocellulose mask with the help of Acetobacter xylinum bacteria varied with different formulae: F1 (Vitamin E 1%), F2 (E 2.5 %), F3 (AE 5%), F4 (AE 2.5%+Vit E 1%) and F5 (AE 5%+Vit E 1%) followed antimicrobials test with common acne bacteria by diffusion disk against Propionibacterium acne (PAC) ATCC 6919 and Pseudomonas aeruginosa (PAA) ATCC 27853. Study revealed that each formulae design F1; F2; F3; F4; F5 tested against PAC diffusion disk resulted 7.86; 11.67; 10.13; 112.10; 10.33 mm respectively. As for PAA diffusion disk resulted 7.76; 11.63; 10.33; 11.67; 11.00 mm respectively. Biocellulose mask containing combination of AE 2.5% and Vit E (F4) would provide the best anti-acne activity amongst other formulae.
Co-Authors Ali Imran Ritonga Dharmawan, Hariyadi Edgar Pratama Fitri, Raissa Julia Reveny Urip Harahap