14 articles in this issue
Dhina Fitriastuti,Muhammad Idham Darussalam Mardjan,Jumina Jumina,Mustofa Mustofa
The synthesis of (1)-N-(3,4-dimethoxy-benzyl)-1,10-phenanthrolinium bromide had been conducted from vanillin. Heme polymerization inhibitory activity assay of the synthesized antiplasmodium has also been carried out. The first step of reaction was methyla... see more
Puspa Dewi Narrij Lotulung,Tjandrawati Mozef,Chandra Risdian,Akhmad Darmawan
The antidiabetic activity test through a mechanism of inhibition of a-glucosidase enzyme was studied against ethanol, n-hexane, ethyl acetate and n-butanol fractions of ethanol extract of Artocarpus altilis (Parkinson) Fosberg (Moraceae) leaves and four f... see more
Dyah Styarini,Andreas Andreas,Y. Susanto Ridwan,Retno Yusiasih
The development of analytical method for the determination of a-endosulfan and bifenthrin residues in tea has been done. The complex matrices and also the pigment were the challenge in doing quantification of the pesticide residues in tea matrices. In ord... see more
Samuel Budi Wardhana,Marit Kolb,Müfit Bahadir,Bambang Purwono,Tutik Dwi Wahyuningsih
An SPE followed by HPLC-DAD method with ion pair chromatography technique to analyze pharmaceuticals with acethylcholinesterase activity including pyridostigmine (PYR), galathamine (GAL), neostigmine (NEO), eserine (ESE), and donepezil (DON) in water samp... see more
Hartiwi Diastuti,Yana Maolana Syah,Lia Dewi Juliawaty,Marlia Singgih
The isolation of terpenoids from C. heyneana rhizomes and their antibacterial activity have been conducted. The terpenoids were isolated by using vacuum liquid chromatography and radial chromatography. The structures of the compounds were determined based... see more
Gatot Trimulyadi Rekso
Starch is a renewable natural polymer that can be decomposed easily in the environment and can be modified to various applications such as biomedical, agricultural and pharmaceutical applications. Copolymerization of gelatinized starch–CM-chitosan and acr... see more
Asep Kadarohman,Ratnaningsih Eko S.,Gebi Dwiyanti,Lela Lailatul K.,Ede Kadarusman,Ahmad Nur F.
Vetiver oil (Vetiveria zizanoides) has been used as perfume materials, cosmetics, fragrance soaps, anti-inflammation, repellent, and insecticidal agents. Organic vetiver oil has higher economical value than non-organic vetiver oil and it has been regarded... see more
Aman Sentosa Panggabean,Subur P Pasaribu,Bohari Bohari,Nurhasanah Nurhasanah
Trace analysis of Chromium(VI) ions using acid alumina resin as a filler material column in preconcentration system by off-line method has been carried out. Alumina resin was activated with H2SO4 at pH 1 before being filled to the column. This research sh... see more
Erna Astuti,Supranto Supranto,Rochmadi Rochmadi,Agus Prasetya,Krister Ström,Bengt Andersson
Determinations of the temperature effect on glycerol nitration processes have been done with two methods: the HYSYS predictions and the laboratory experiment. The aim of this study was to compare prediction method and laboratory experiment method. The hig... see more
Abu Masykur,Sri Juari Santosa,Dwi Siswanta,Jumina Jumina
The aims of this research is to synthesize a chitosan derivative insoluble in acidic aqueous medium and that has high adsorption capacity for Pb(II) ions by cross-linking and grafting. Cross-linking and grafting were done using ethylene glycol diglycidyl ... see more
Dyah Iswantini,Muammar Yulian,Sri Mulijani,Trivadila Trivadila
Sida rhombifolia L. is a traditional medicinal plant that has been known with potential as antigout. The previous research suggested that flavonoids crude extract of S. rhombifolia had an inhibitory activity toward xanthine oxidase by 71% and a spectropho... see more
Komar Sutriah,Zainal Alim Mas’ud,Tun Tedja Irawadi,Mohammad Khotib
Dithyocarbamate is an organosulphur compound that has long been known and widely applied in various fields, including in agriculture and industry. Several variants of synthesized vegetable oil-based Zinc-difattyalkyldithyocarbamate were tested its anti-fr... see more
Iqmal Tahir,Karna Wijaya,Shafiqul Islam,Mohd Noor Ahmad
Searching capsaicin-like molecule as an alternative dummy template has been conducted for the synthesis of Molecularly Imprinted Polymer (MIP) of capsaicin. Dummy template should be applied because synthesis of capsaicin practically has a problem due to i... see more
Adi Syahputra,Mudasir Mudasir,Nuryono Nuryono,Anifuddin Aziz,Iqmal Tahir
Quantitative structure activity relationship (QSAR) for 21 insecticides of phthalamides containing hydrazone (PCH) was studied using multiple linear regression (MLR), principle component regression (PCR) and artificial neural network (ANN). Five descripto... see more