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Pius Dore Ola
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science

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Journal : chemistry notes

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ANTIBACTERIAL AND BIODEGRADATION NATURE TEST OF EDTA-Ag IMMOBILIZED SILICA COMPOZITE PLASTICS AND CHITOSAN Wogo, Hermania Em; Ndoen, Martha C. W.; Ola, Pius Dore
Chemistry Notes Vol 1 No 2 (2019): Chem. Notes 2019, 1(2)
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/cn.v1i2.1687

Abstract

It has been conducted a research, which it aims to know the antibacterial and biodegradation nature of EDTA-Ag and chitosan immobilized silica composite plastics. Silica used was from rice hull processing products. Chitoson used was 0.3 and 0.7 g. Antibacterial assay was conducted over Staphylococcus aureusandEscherichia coli bacteria. the result obtained showed that the biggest inhibitory is at variation of chitosan 0.7 g, which over Staphylococcus aureusbacteria is 15.6 mm and Escherichia colibacteria is 16,7 mm. While, in biodegradation assay, the highest degradation percentage is at chitosan variation 0.3 g, namely 32.17%.
Mono Acyl Glycerol Compound Synthesis Through Partial Transesterification Of Castor Oil (Ricinus communis L.) using KOH as Catalyst Ratu, Marlin; Nitbani, Febri O.; Ola, Pius Dore
Chemistry Notes Vol 1 No 2 (2019): Chem. Notes 2019, 1(2)
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/cn.v1i2.1720

Abstract

It has been done a study of mono acyl glycerol compound synthesis through partial transesterification of castor oil (Ricinus communis L.) using KOH as catalyst. The product of mono acyl glycerol obtained is 45.4 % with the ratio between castor oil triglyceride and methanol 1:2 at 35 0C temperature with the amount of catalyst 0.5 % (b/b) from the reactant total weight and the reaction time 30 minutes. In this research, it was done a compound characterization using, TLC, FTIR and LC MS to prove the success of targeting compound has been synthesized.
REDUCTION OF ANIONIC SURFACTANT IN DETERJENT FROM DOMESTIC WASTE WATER USING PUMICE AND SAND AS A MEDIA IN CONSTRUCTED WETLAND SYSTEM Selan, Fianelda Th; de Rozari, Philiphi; Nitbani, Febri Odel; Ola, Pius Dore
Chemistry Notes Vol 2 No 1 (2020): Chem. Notes 2020, 2(1)
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/cn.v2i1.2339

Abstract

The use of pumice and sand as a media in Constructed wetland (CW) system to reduce anionic surfactant has been carried out. This research aimed to investigation the efficiency of pumice and sand in CW system with and without plant (cymbopogon citrates) for CW anionic surfactant removal. There were six variation of CW treatments based on percentage pumice amended in the sand media. The anionic surfactant were analysed using UV-VIS spectrophotometry with metilen blue methods. Results of the analysis on oneway anova showed that the efficiency removal of anionic surfactant in inflow and outflow is significant different, on the variation of media of pumice 10% and sand 90% (CW B) reduced anionic surfactant levels efficiently from an average of 0,481 ppm ppm to 0,188 ppm with a decrease in percentage value of 60,91%.
Co-Authors Afred, Merymistika Yufrani Bibiana D. Tawa Hermania Em Wogo Juliana Ofi Segu Ndoen, Martha C. W. Nitbani, Febri O. Philiphi de Rozari Ratu, Marlin Selan, Fianelda Th