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Now showing items 31-40 of 385
Limbah Arang Sekam Padi Sebagai Adsorben Ion Cr(III) dan Cr(VI)
(2009)
The major sources of heavy metal contaminations are industrial effluents. Chromium metal and its compound have wide application in industrial sector. Its two most stable states are Cr(III) and Cr(VI). Trivalent chromium ...
Modification of Sugarcane Bagasse By AcetylationModifikasi Selulosa Ampas Tebu dengan Asetilasi
(2010)
Bagasse has high cellulose content (52.7%), that can be modified into cellulose acetate by acetylation. Cellulose was isolated from bagasse by treatment with water, delignification with NaOH and NaClO2, and activation with ...
Separation and Characterization Amylose-Amylopectin on Tapioka and Sagoo Using Variation Temperature of WaterPemisahan dan Pencirian Amilosa-Amilopektin pada Tepung Tapioka dan Sagu Menggunakan Ragam Suhu Air
(2010)
Amylose can be easily separated by using water with several temperature condition. Separation amylose and amylopectin process is done by using not only hot water with different temperature 55, 60,and 65 °C, but also with ...
Preparation and Characterization of Polylacticacid-Beeswax Polyblend.Pembuatan dan Pencirian Polipaduan Poliasamlaktat-Lilin Lebah
(2011)
Nondegradable plastic waste could cause an environment problem due to its difficulty in degradation. The development of biodegradable polylacticacid (PLA)-beeswax polyblend is necessary to give alternatives of nondegradable ...
Adsorpsi asam lemak bebas dan zat warna menggunakan campuran kaolin-limbah padat tapioka
(2009)
Adsorption of free fatty acids in used cooking oil and methylene blue dye is studied. The results showed that the mixture of kaolin and tapioca solid waste is a potential adsorbent for the adsorption free fatty acids and ...
Sidik Jari Bakau (Rhizophora sp.) sebagai Bahan Baku Antioksidan dan Inhibitor Tirosinase
(2013)
Rhizophora sp. is one species of mangrove which has many functions including cosmetic herbal, one of which is as inhibitor of tyrosinase enzyme to heal hyperpigmentation and melanosis in human skin. The aim of this study ...
Optimalization Synthesis of Chitosan-Based Glucosamine HydrochloridePengoptimalan Sintesis Glukosamina Hidroklorida Berbasis Kitosan
(2010)
In this study, glucosamine hydrochloride has been synthesized based on chitosan hydrolysis using HCl. The reaction time, temperature, and HCl concentration were varied and investigated. The Box Behnken method response ...
Purifikasi dan Pencirian Eritropoietin Rekombinan Hasil Ekspresi pada Sistem Khamir Pichia pastoris
(2009)
For the clinical purposes needed a purified protein and the carbohydrates contains of recombinant erythropoietin (EPO) should be known. Purification was done by histrap method and then applied to column chromatography gel ...
Adsorpsi dan desorpsi kromium (VI) pada zeolit alam asal Lampung termodifikasi Heksadesiltrimetilamonium bromida
(2009)
Zeolite is a mineral that is able to adsorp chromium. Chromium has three stable forms in nature,i.e. metal chromium, trivalent chromium, and hexavalent chromium. Among these forms, hexavalent chromium are the most toxic ...
Kitosan Tertaut Silang Urea-Formaldehida dan Asam Sulfat Sebagai Penjerap Cibacron Red
(2012)
Modified chitosan cross-linked with urea-formaldehyde and sulfuric acid has been prepare through an establishment of cross-linker material of urea, formaldehyde, and sulfuric acid with the ratio 1:2:1. The ratio of ...