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All Journal Jurnal Ilmu Dasar Jurnal Sains Materi Indonesia BERKALA SAINSTEK Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) Alchemy Jurnal Penelitian Kimia UNEJ e-Proceeding Jurnal Ilmiah Inovasi Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Indonesian Chimica Letters InSTEM al Kimiya : Jurnal Ilmu Kimia dan Terapan

Achmad Sjaifullah

Jurusan Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Jember

Author-ID : 383199

Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Energy Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Other

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Polysulfone Membrane with UV-Photografting Technique and it Application at Soya Milk Filtration Processing Bambang Piluharto; Achmad Sjaifullah; Istiqomah Rahmawati; Maryanto Maryanto
Jurnal ILMU DASAR Vol 14 No 1 (2013)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

In the separation process of solution containing protein, interaction between membrane surface and protein can cause fouling irreversibely. So, efficiency of filtration process will decline. In this research, to improve the effeciency of filtration was done by modification of membrane using UV-photografting technique. Acrylic acid had been introduced topolysulphone membrane via this technique. The hydrophylic membrane was obtained. The membrane performance was evaluated in soymilk fouling test. The first step of research had obtained PSF membrane optimation about PSF 18%. In second step, the research was focused on the modification and characterization of PSF membrane by UV-Fotografting tehchnique. In this technique, monomer concentration and radiation time was used as variable. As the result, PSF membrane had been modificated succesfully by UV- photografting tehchnique with optimum condition in 15 minutes time radiation and concentration of acrylic acid 5%. Performance of modified membranes (flux and permselectivity) were better than unmodified membranes. The fouling test showed that the modified membranes have reduced fouling degree significantly. Keywords : Ultrafiltration membrane, UV-photografting, flux and permselectivity, fouling

Synthesis and Characterization of Hydrogels based on Graft Copolymerization of Acrylamide on Chitin resulted from Enzymatic Isolation of Shrimp Waste Lestari, Tia; Sjaifullah, Achmad; Santoso, Agung Budi
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Shrimp waste containing chitin 15-20%. Chitin can be isolated enzymatically by using proteaseenzymes derived from the waste itself. Waste of shrimp marinated in 1M H2SO4 for 10 days at pH1-2 and do control the pH and concentration of N-total every 24 hours. So that, this process canreduce the use of chemicals and environmental pollution. Enzymatic chitin obtained ash content1.789% and 5.322% of N-total. Results of IR showed characteristic functional groups of chitin areOH 3390.5 cm-1, NH (secondary amide) 3348.71 cm-1, C = O 1648.20 cm-1, C-N at 1313.96 cm-1,C-O 1115, 28 cm-1. Chitin is dissolved in 8% NaOH / Urea 4% for 36 hours (-20oC). Hydrogelsmade with a ratio (1: 6); (1: 8); (1:16); (1:24) w / w. The results showed the increasing amount ofacrylamide monomer, the greater the value% graft and absorption of water. Enzymatic chitinhydrogel showed the maximum value % graft is 2492.073%; and water absorption 1.794 g / g. IRhydrogel results indicate primary amide N-H stretching of acrylamide at 3349.77 and 3202.88 cm-1, C = O 1662.03 cm-1Keywords: hydrogel, chitin, acrylamide, graft copolymerization

Onoceranoid Triterpene from Langsep Leaf (Lansium domesticum Corr.) and Its Insecticide Activity to Spodoptera littura Larvae Winata, I Nyoman Adi; Sjaifullah, Achmad; Cahyani, Dita J.; Ayu, Woro D.
Jurnal ILMU DASAR Vol 18 No 1 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Onoceranoide type of triterpene was isolated from leaf of langsep (Lansium domesticum Corr.) Isolation is conducted by vacuum and flash column chromatography technics with Silika Gel 60 F, Silika Gel 60 (70-230 mesh), and Sephadex LH-20 powder as stationery phase and mixture of dichloromethane, methanol, ethyl acetate as mobile phase. The structure was identified by Infrared and NMR spectroscopy. It has moderate insecticidal activity to Spodoptera littura larvae with LC50 13,6 ppm.

Co-Authors Adiwinata, I Nyoman Agung Budi Santoso Agung Budi Santoso Aulia, Eldiani Ayu, Woro D. Bambang Piluharto Busroni Busroni, Busroni Cahyani, Dita J. Fitriati, Diana Gailani, Jauhairiyah Heni Pujiastuti I Nyoman Adi Winata Ika Oktavianawati Istiqomah Rahmawati Jayus Jayus Lelono, Asmoro M Ardiyansyah Maryanto - Maryanto Maryanto Muhammad Reza Mulia Winirsya Apriliyanti Nanda Letitia Ivana Oktavianawati , Ika Pratiwi, Chanifah Dwi Happy Puspito Arum Ridho, Moh Zeinur Robaniyah, Septiana Kholifatur Saputra, Beny Akhmat Sugeng Winarso Suhardiman, Ahmad Susanti, Tria Tia Lestari, Tia Wuryanti Handayani Zuhro, Syarifa Aminatuz

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