16 articles in this issue
Hemant Panwar,Shishupal Singh,Nidhi Chaudhary
In the present study, a series of 2-(4´-Substitutedanilinosydnon-3´-yl)-1, 3, 4-thiadiazino (6, 5-b) indoles 7a-j have been synthesized. All the synthesized compounds have been characterized by elemental and spectral (I R, 1H- NMR and Mass) spectrometric ... see more
Emi Shaqiza Azizi,Mohd Noor Ahmad,A.K.M. Shafiqul Islam,Dahyar Arbain,Iqmal Tahir
Molecularly imprinted polymer (MIP) is gaining importance in separation technology. In this study, curcumin has been selected as template in MIP which can be applied as sorbent materials in solid-phase extraction (SPE). Effect of porogen on the quality of... see more
Feti Fatimah,Sanusi Gugule
It was conducted a research about the addition effect of sulphanilic acid to the synthesis 3,4-methylenedioxybenzaldehyde from the isosafrole using reagents of sodium dichromate, sulphuric acid, and sulphanilic acid. The separation and purification of pro... see more
Heny Ekowati,Eka Prasasti,Undri Rastuti
Breast cancer is one of the main causes of death in women. Cancer treatment with surgery, chemotherapy, and radiology often cause undesirable side effects. Therefore, alternative cancer treatment by using plants as traditional medicine was expected to red... see more
Zuhrina Masyithah,Seri Bima Sembiring,Zul Alfian,Tjahjono Herawan
The optimization of enzymatic synthesis for lauroyl-N-methyl glucamide surfactants is studied. The fraction of palm kernel oil namely lauric acid (AL) was amidificationed with N-methyl glucamine (MGL) to produce lauroyl-N-methyl glucamide. Study was carri... see more
Andi Hairil Alimuddin,Sabirin Matsjeh,Chairil Anwar,Mustofa Mustofa
Synthesis of 5,7-dihydroxy-3',4'-dimethoxyisoflavone from eugenol as isolated product of clove leaves oil had been done. Eugenol was firstly converted into 3,4-dimethoxybenzyl cyanide via several stages of reaction. Hoeben-Hoesch reaction of 3,4-dimethoxy... see more
Nanik Wijayati,Harno Dwi Pranowo,Jumina Jumina,Triyono Triyono
The hydration of a-pinene has been studied in the presence of TCA/Y-Zeolite catalyse. The catalyst was prepared by impregnating trichloroacetic acid (TCA) on support of Y-Zeolite. The TCA/Y-Zeolite catalyst converted a-pinene into hydrocarbons, while the ... see more
Euis Hermiati,Jun-ichi Azuma,Djumali Mangunwidjaja,Titi C. Sunarti,Ono Suparno,Bambang Prasetya
Cassava pulp and tapioca flour are potential sources of glucose. In this work, validity of microwave irradiation for hydrolysis of carbohydrates, especially starch, present in cassava pulp and tapioca flour was estimated as a non-enzymatic saccharificatio... see more
Tri Joko Raharjo,Rosyida Azis Rizki,Stalis Norma Ethica,Elly Rustanti,L. Hartanto Nugroho
Resveratrol is a potent anticancer agent resulted as the main product of enzymatic reaction between common precursor in plants and Stilbene Synthase enzyme, which is expressed by sts gene. Characterization of internal fragment of Stilbene Synthase (STS) e... see more
Winarti Andayani,Agustin N M Bagyo
Degradation of humic acid in aqueous solution containing TiO2 coated on ceramics beads under irradiation of 254 nm UV light has been conducted in batch reactor. The aim of this experiment was to study photocatalytic degradation of humic acid in peat water... see more
Herry Poernomo
Preliminary study of the utilization of the fly ash from coal-fired power plant for immobilizing simulated radioactive waste has been done. The objective of this research was to study characteristics of pozzolanic material of the fly ash from coal-fired p... see more
Sunarso Sunarso,Sutarno Sutarno,Kanji Tsuru,Ika Dewi Ana,Kunio Ishikawa
The clinical success of current generation of synthetic bone substitute relies on bio-inspired design which has a performance level close to that of natural one. In this context, biomedical approaches are considered very important to result bio-functional... see more
Siti Sulastri,Nuryono Nuryono,Indriana Kartini,Eko Sri Kunarti
In this research, adsorption of Ca(II), Pb(II) and Ag(I) in aqueous solution onto sulfonato-silica hybrid (SSH) prepared from rice hull ash (RHA) has been studied. The preparation of SSH adsorbent was carried out by oxidation of mercapto-silica hybrid (MS... see more
Suyanta Suyanta,Agus Kuncaka
The research about synthesis and characterization of MCM-41 from rice husk has been done. Silica (SiO2) was extracted from rice husk by refluxing with 3M hydrochloric solution at 80 °C for 3 h. The acid-leached rice husk was filtered, washed, dried and ca... see more
A. Sentosa Panggabean
Preparation of the chitosan membrane of ion-selective electrode for determination of cadmium ion has been conducted. Chitosan is a natural polymer containing nitrogen could coordinate with Cd2+ to increase the membrane conductivity value. Chitosan is a pr... see more
Maulidiyah Maulidiyah,A. Herry Cahyana,Wahyudi Priyono Suwarso
Natural product, 2'-hydroxy-1'-(4-hydroxyl-5-methoxy-2-methyl-phenyl)-ethanon, (1), was isolated from the thalli lichen Usnea flexuosa Tayl. together with the known (-) - usnic acid (2). The structure of compounds 1 and 2 were determined by the spectrosco... see more