10 articles in this issue
Ahmad Md. Noor,Pedy Artsanti,P.E. Lim,S. Suryani,H.P.S Abdul Khalil
The thermal Charcoal for domestic used was crushed into powder and mixed with gravel. Four reactors of different proportion and size of charcoal and gravel were set up without vegetation. Sample of landfill leachates obtained from site of Pulau Burung Lan... see more
Warsito Warsito,Edi Priyo Utomo,Achmad Ashadi,Satriyo Santosa
In an integrated controlling system of palm weevil, using of synthetic feromoid is strickly needed. The research is aimed to synthesize pheromone which secreted by the weevil, e.g. 4-methyl-5-nonanol (R. ferrugineus) and 3-methyl-4-octanol (R. schach) thr... see more
Suyatno Suyatno,Rukmaningsih Rukmaningsih,Noor Cholies Zaini,Motoo Tori
It has been separated a flavonol 3,5,7,4'-tetrahydroxy flavone (kaemferol) from the methanol extract partitioned by ethyl acetate of the leaves of the fern Chingia sakayensis (Zeiller) Holtt. This was obtained as yellow crystals with m.p. 271-273oC. Chara... see more
Rymond J Rumampuk,Emma J Pongoh,Ponis Tarigan,Anthony J Herlt,Lewis N Mander
A triterpene ester saponin has been isolated from the seed of Barringtonia asiatica and its structure has been established by extensive application of high-resolution FABMS and two dimensional NMR techniques to be 3-O-{[ß-D-galactopyranosyl(1?3)-ß-D-gluco... see more
Wilson AR Rombang,Rymond J Rumampuk,Ponis Tarigan,Anthony J Herlt,Lewis N Mander
Bisdemethylaaptamine, an alkaloid naphtyridine with molecular weight 200 and formulae molecule C11H8N2O2 has been isolated from Bunaken Marine Park sponge Aaptos sp. Isolation was done by using several stages of column chromatography and high performance ... see more
Zainal Fanani,Miksusanti Miksusanti,Desnelli Desnelli
It had been done a biodegradation polyblend from blending polypropilene-palm oil-amylum with three composition of polyblend i.e polyblend A 80% polypropilene- 19.5% palm oil- 0.5% amylum, poliblend B 80% polypropilene- 19% palm oil- 1% amylum and polyblen... see more
Pipik Taufik,Dayat Bastiawan
The susceptibility of Aeromonas hydrophila isolated from ikan baung (Mystus nemurus) to antimicrobial agents was carried out. The objective of study is to know the kind of antimicrobial agents for the control aeromonasis of Mystus nemurus. Tryptic s... see more
Rasti Januarita,Herdiansyah Herdiansyah
The effect of initial concentration of Cr(VI) on adsorption to black water of Gambut, District of Banjar, South Borneo has been investigated, as well as interaction between Cr(VI) species and functional black water organic fraction.The initial work was op... see more
Hanoch J Sohilait,Hardjono Sastrohamidjojo,Sabirin Matsjeh
Synthesis of secondary alcohols compound from safrole and methyleugenol has been achieved through conversion of allyl group to alcohol.The reaction of safrole and methyleugenol with mercuric acetate in aqueous tetrahydrofuran, followed by in situ reductio... see more
Enade Perdana Istyastono,Sudibyo Martono,Harno Dwi Pranowo,Iqmal Tahir
The Quantitative Structure-Activity Relationship (QSAR) study was established on curcumin and its derivatives as glutathione S-transferase(s) (GSTs) inhibitors using atomic net charges as the descriptors. The charges were resulted by semiempirical AM1 and... see more