Breadfruit starch is a unique resource which benefits for raw material of adhesive making. This study investigates hydrolysis method of breadfruit starch into dextrin with Sulphate Acid (H2SO4) catalysator. Dextrin hydrolysis is carry out in order to…
Preparation of cellulose film from nata de pina, a product of pinapple fermentation, using acetobacter xylinum was done at room temperature for 15 days. The aim of the research is to investigate the effect of sugar concentration and pH on film…
Ethanol as one of renewable energy was being considered an excellent alternative clean-burning fuel to replace gasoline. Continuous ethanol fermentation systems had offered important economic advantages compared to traditional systems. Fermentation…
Kajian terhadap aspek termodinamika suatu sistem campuran polimer-polimer diperlukan untuk mendapatkan informasi mengenai kemampuan pencampuran maksimal dan pemisahan fasa dari sistem campuran tersebut. Penelitian ini bertujuan untuk memperkirakan…
The world now is facing two energy related threats which are lack of sustainable, secure and affordable energy supplies and the environmental damage acquired in producing and consuming ever-increasing amount of energy. In the first decade of the…
Kajian ini bertujuan untuk menentukan kinerja penukar panas tipe shell and tube dengan pengaturan suhu outlet. Penukar panas yang digunakan dalam kajian ini adalah penukar panas tipe shell and tube dengan bahan bakar kerosen. Parameter kinerja…
Membran poliuretan (PU) dibuat dengan cara mereaksikan asam lemak bebas dan asam lemak yang telah teroksidasi yang berasal dari minyak jarak dengan 2,4-tolulen diisosianat (TDI). Komposisi monomer, temperatur dan waktu polimerisasi divariasikan.…
Chemical components of liquid smoke which is produced via pyrolisis of palm oil solid waste have been analyzed by using gas chromatography mass spectroscopy (GC-MS). Solid waste consists of shell, empty fruit bunch, and palm fiber. Solid waste was…
Water quality assessment in the tsunami-affected areas conducted in Meuraxa and Kutaradja sub-districts in the area of Banda Aceh City. Water samples were collected in October 2006 from dug wells of tsunami-affected areas. These were characterized…
Asymmetric ultrafiltration (UF) membranes were prepared from three kinds of polymer namely polyacrilonitryle (PAN), polysufone (PS), and cellulose acetate (CA) by phase inversion method. Water was used as non-solvent. These membranes were…