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The Moringa Seed (Moringa oleifera, L.) Extracts Potentially Reduce the Effects of Clothes Washing Wastewater on Growth of Green Beans (Vigna radiata) Merymistika Y. Afred; Bibiana D. Tawa; Pius D. Ola
Journal of Applied Chemical Science Volume 1, No. 2 , 2012
Publisher : Journal of Applied Chemical Science

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Abstract

A study concerning the use of Moringa seed (Moringa oleifera, L.) extracts to reduce the influence of clothes washing wastewater on growth of green bean (Vigna Radiata) has been conducted. The study aimed to determine the effective dose of coagulants prepared from moringa seed extracts (400, 600, 800, 1000, and 2000 mg/L) on germination of green beans in wastewater. The results showed that the optimum dose of coagulant was 2000 mg/L. The treatments with various doses of coagulants indicated significantly different except for the dose of 1000 mg/L and 2000 mg/L (P < 0.05). The stem height and leaf watering with coagulant water were 25.9 cm and 14.1 cm2, respectively, while by the tap water were 24.3 cm and 10.99 cm2, respectively. Those results conclusively indicated that the water coagulant prepared from moringa seed extracts promotes growth of the vigna radiata.
Antioxidant Activities of Chloroform and Aqueous Fractions of Myrmecodia Pendenss Extract: A Preliminary Study Yohanes Buang; Ermelinda Noya; Pius D. Ola; Theo Da Cunha
Journal of Applied Chemical Science Volume 2, No. 1 , 2013
Publisher : Journal of Applied Chemical Science

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Abstract

There have been elucidated the antioxidant activities of chloroform and aqueous fractions of methanol extracts isolated from myrmecodia pendenss. The study was firstly started by maceration of myrmecodia pendenss powder in certain quantity of pure methanol solvent and followed by gradual partition of the methanol extract with chloroform and distillated water and then purified with column chromatography. The chemical contents migrated into both those later solvents were detected by GC-MS and their functional groups were detected by FT-IR instruments. Thereafter, the antioxidant activities of the migrated compounds in each those solvents were determined using hydrogen peroxide protocol and the absorbance was measured at 240 nm. The ascorbic acid solution was used as control. The results showed that FT-IR spectrum showed methylene and ethene groups are existed within the compounds contained by the extracts as well as the hydroxyl, carbonyl, aromatic, and keton groups. Furthermore, the GC-MS spectrum indicated the compounds that are existed within the chloroform and the aqueous fractions of the extract. The average absorbances of compounds contained within the chloroform and aqueous fractions were 0.161 and 0.112, respectively, whereas that of the control was 0.085. Those absorbance data conclusively indicated that higher absorbance higher residue of chromophore content existed within the fraction and higher failures of hydroxylation reactions. It was however, the antioxidant activities of the aqueous fractions were higher than those of the chloroform fractions.
ADSORPSI ISOTERMAL HERBISIDA PARAQUAT PADA TANAH DI DESA NONBAUN KECAMATAN FATULEU Merpiseldin Nitsae; Philiphi de Rozari; Pius Dore Ola
Prosiding Seminar Nasional MIPA 2012: PROSIDING SEMINAR NASIONAL MIPA UNDIKSHA 2012
Publisher : Prosiding Seminar Nasional MIPA

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Abstract

AbstrakPerilaku dan nasib herbisida di dalam tanah sangat dipengaruhi oleh sifat- sifat tanah. Proses adsorpsi paraquat dapat membantu mengurangi pencemaran pada lingkungan tanah namun kelebihan konsentrasi paraquat dapat menyebabkan kerusakan pada struktur tanah dan keracunan bagi organisme di dalam tanah. Penelitian ini bertujuan untuk mengetahui karakteristik tanah serta menentukan kapasitas dan energi adsorpsi paraquat di dalam tanah Desa Nonbaun- Fatuleu. Hasil penelitian menunjukan bahwa tanah desa Nonbaun mempunyai 3 jenis meneral yaitu mineral kuarsa, actinolite dan muscovite. Harga kapasitas pertukaran kation tanah Nonbaun berada pada kisaran mineral kaolinit yaitu 9,864 meq/100 gram adsorben dengan nilai pH 5,15-5,30 yang menunjukan tanah Desa Nonbaun-Fatuleu tergolong tanah asam. Hasil ini juga diperkuat dengan harga kadar air dan kadar bahan organik yang relatif kecil yaitu 2,77% dan 7,22%. Kapasitas dan energi adsorpsi mengikuti proses isoterm Langmuir baik sebelum maupun sesudah tanah dijenuhkan dengan paraquat. Dari percobaan ini diperoleh nilai kapasitas yang terikat kuat adalah 3,4693 mg/g tanah dan yang terikat lemah adalah 17,7374 mg/g tanah. Sedangkan Energi adsorpsi paraquat berkisar antara 22,92-23,09 KJ/mol.
ADSORPSI ISOTERMAL HERBISIDA PARAQUAT PADA TANAH DI DESA NONBAUN KECAMATAN FATULEU Nitsae, Merpiseldin; de Rozari, Philiphi; Dore Ola, Pius
Prosiding Seminar Nasional MIPA 2012: PROSIDING SEMINAR NASIONAL MIPA UNDIKSHA 2012
Publisher : Prosiding Seminar Nasional MIPA

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Abstract

AbstrakPerilaku dan nasib herbisida di dalam tanah sangat dipengaruhi oleh sifat- sifat tanah. Proses adsorpsi paraquat dapat membantu mengurangi pencemaran pada lingkungan tanah namun kelebihan konsentrasi paraquat dapat menyebabkan kerusakan pada struktur tanah dan keracunan bagi organisme di dalam tanah. Penelitian ini bertujuan untuk mengetahui karakteristik tanah serta menentukan kapasitas dan energi adsorpsi paraquat di dalam tanah Desa Nonbaun- Fatuleu. Hasil penelitian menunjukan bahwa tanah desa Nonbaun mempunyai 3 jenis meneral yaitu mineral kuarsa, actinolite dan muscovite. Harga kapasitas pertukaran kation tanah Nonbaun berada pada kisaran mineral kaolinit yaitu 9,864 meq/100 gram adsorben dengan nilai pH 5,15-5,30 yang menunjukan tanah Desa Nonbaun-Fatuleu tergolong tanah asam. Hasil ini juga diperkuat dengan harga kadar air dan kadar bahan organik yang relatif kecil yaitu 2,77% dan 7,22%. Kapasitas dan energi adsorpsi mengikuti proses isoterm Langmuir baik sebelum maupun sesudah tanah dijenuhkan dengan paraquat. Dari percobaan ini diperoleh nilai kapasitas yang terikat kuat adalah 3,4693 mg/g tanah dan yang terikat lemah adalah 17,7374 mg/g tanah. Sedangkan Energi adsorpsi paraquat berkisar antara 22,92-23,09 KJ/mol.
Sintesis Senyawa C-2,8,14,20-TETRA-(2,4,5-Trimetoksi)Fenil Kaliks[4] Resorsinarena dari Senyawa 2,4,5-Trimetoksi Benzaldehida Yoktan E Buraen; Pius D Ola; Reinner I Lerrick
Saintek Lahan Kering Vol 2 No 2 (2019): JSLK Desember 2019
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (728.552 KB) | DOI: 10.32938/slk.v2i2.867

Abstract

The synthesis of C-2,8,14,20-tetra-(2,4,5-trimethoxy)phenyl calix[4] resorcinarene from 2,4,5-trimethoxy benzaldehyde has been done. Through isolation of asaron from Timor Genoak (Acorus calamus) followed by its oxidation with K2Cr2O7, the C-2,8,14,20-tetra-(2,4,5-trimethoxy)phenyl calix[4] resorcinarene has, therefore, been accessed over reflux. The asaron has been isolated as 3.05% of yellow oil whilst, the oxidation produced 2,4,5-trimethoxy benzaldehyde with the yield of 49.49%. The C-2,8,14,20-tetra-(2,4,5-trimethoxy) phenyl calix[4]resorcinarene has been yielded as 89.29% of a brown solid.
SINTESIS SILIKA GEL TERIMOBILISASI DITHIZON MELALUI PROSES SOL-GEL Hermania Em Wogo; Juliana Ofi Segu; Pius Dore Ola
Jurnal Sains dan Terapan Kimia Vol 5, No 1 (2011)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (452.181 KB) | DOI: 10.20527/jstk.v5i1.2092

Abstract

Telah dilakukan penelitian tentang sintesis silika gel terimobilisasi dithizon dari abu sekam padi (yang digunakan sebagai bahan adsorben). Kajian yang dilakukan meliputi sintesis dan karakterisasi silika terimobilisasi dithizon. Metode yang digunakan ialah metode sol-gel. Karakterisasi silika gel dilakukan dengan spektrofotometer inframerah (FTIR), difraktometer sinar-X (XRD), dan penganalisis luas permukaan (SAA). Hasil penelitian menunjukkan bahwa silika terimobilisasi dithizon berhasil dibuat yang ditunjukkan oleh munculnya serapan inframerah dari gugus fungsional ­–NH, C=N, C-N, -SH, C=S. Data XRD menunjukkan bahwa struktur silika terimobilisasi dithizon bersifat amorf. Hasil SAA menunjukkan bahwa penambahan dithizon menurunkan luas permukaan spesifik silika kecuali untuk penambahan dithizon 2 gram.  Kata kunci : silika gel, imobilisasi, dithizon, sekam padi, sol-gel