Search
Now showing items 331-340 of 385
Slow Release of Dissolved N-Urea as NH4+ and NO3- Following Activated Carbon Application in Andisols SoilSlow Release N-Urea dalam Bentuk NH4+ dan NO3- setelah Aplikasi Arang Aktif pada Tanah Andisol
(2010)
Urea is fertilizer that has low efficiency absorption in soil-plant system, which is about 30-50%. This is due to highly hygroscopic nature of urea that made urea dissolve easily into groundwater as nitrate when it applied ...
Optimasi Zeolit Alam TermodifikasiFe(OH)3 sebagai Penukar Anion
(2012)
Activation and modification with Fe(OH)3 can increase the ability of zeolite as anion exchanger. Activation were carried out with HCl concentration of 2, 4, 6, and 8 M with variation of agitation time of 60, 90, and 120 ...
Perilaku Difusi Ketoprofen Melalui Membran Gel Kitosan-CMC
(2009)
Chitosan-carboxymethyl cellulose (CMC) gel is potential as a coating agent for ketoprofen sustained-drug-release. In the previous research, this gel has been reported to have good rheological properties as a drug delivery ...
Composite Membrane of Cellulose Acetate- Polystyrene Affected by Sodium Dodecyl Sulphate (SDS) and TemperatureMembran Komposit Selulosa Asetat-Polistirena Akibat Pengaruh SDS Dan Suhu
(2010)
Nanopore membrane cellulose acetate-polystyrene with SDS as porogen, can be utilized as a filter in seawater desalination process. Nanopore membrane CA-PS was prepared under reverse phase method. The process was started ...
Antioxidant Activity of The Most Active Fraction of Tamarind Fruits and LeavesAktivitas Antioksidan Fraksi Teraktif Buah dan Daun Asam
(2010)
Tamarind plant (Tamarindus indica) contain tannins, flavonoids, and saponins which are usually have antioxidant activity. The purpose of this study was to determine antioxidant activity and total phenolic content of the ...
Profil Kelarutan Limbah Minyak Berat Akibat Penambahan Bahan Pencampur
(2009)
Heavy oil waste (HOW) is one petroleum waste in a form of black viscous liquid. Bioremediation is an alternative technology which is friendly, effective, efficient, and economic. However, HOW's solubility in water is in ...
Sitotoksisitas Fraksi Aktif Biji Mahoni (Swietenia mahagoni) pada Sel Kanker Payudara T47D
(2009)
Ethyl asetate fraction was reported to be toxic to Artemia salina and has a potency as medicine. The purpose of this study was to examine cytotoxicity of active fraction from Swietenia mahagoni seed toward breast cancer ...
Pembuatan Ester Etil Asam Lemak dari Minyak Kelapa dan Etanol dengan Katalis Abu Sabut Kelapa
(2009)
Biodiesel is produced through the reaction between oil and alcohol with the help of catalyst which is called transesterification. In this research is used ethanol from alcoholic beverage distilation result with coconut ...
Stability and Effectiveness of Glucose Biosensor Based on Escherichia coli Using Immobilized GlutaraldehydeStabilitas dan efektivitas biosensor glukosa berbasis Escherichia coli menggunakan imobilisasi glutaraldehida
(2011)
The immobilization glucose dehydrogenase (GDH) cells from Escherichia coli cross-linking glutaraldehyde on a carbon paste electrode were studied. Cyclic voltammetry are employed to investigate the catalytic behavior of the ...
Regeneration of Spent Bleaching Earth and Reuse in Crude Palm Oil Purification.Regenerasi Spent Bleaching Earth dan Penggunaan Kembali Dalam Pemurnian Minyak Nabati.
(2011)
Bleaching earth (BE) is commonly used term in trading for a clay with montmorilonite structure. The increasing of BE consumption in crude palm oil (CPO) purification will increase the spent bleaching earth (SBE) amount. ...