Master Theses
Master Theses
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Now showing items 301-320 of 374
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Transformasi Mikropori ke Mesopori Cangkang Kelapa Sawit terhadap Nilai Kalor Bakar Briket Arang Cangkang Kelapa Sawit
(Universitas Sumatera Utara, 2008)Solid waste of palm oil mill as shell, can be used as alternative fuel substituting the kerosene. This research tried to assess the preparation of charcoal bricket form palm oil shell by modifying the size of pore from ... -
Studi Pemanfaatan Silika Gel Tersalut Kitosan untuk Menurunkan Kadar Logam Besi dan Seng dalam Larutan Kopi
(Universitas Sumatera Utara, 2009)The use of chitosan as a coating agent for silica gel in order to decrease iron (Fe) and zinc (Zn) contents in coffee extract has been carried out. The adsorptions of iron and zinc was conducted by eluting the coffee extract ... -
Studi Interkalasi Ca2+ / Fe3+ Pada Cangkang Sawit sebagai Bahan Pengisi Penguat Komposit Semen
(Universitas Sumatera Utara, 2004)Palm shell obtained from of Palm oil mill can used a filler and for cement board by modification of palm shell surface followed by intercalation with Ca2+ and Fe3+ ions. Testing of cement-palm shell Ca2+ cement board and ... -
Modifikasi dan Penggunaan Pemlastis Turunan Asam Oleat dari Asam Lemak Sawit Destilat (ALSD) Pada Matriks Polivinil Klorida
(Universitas Sumatera Utara, 2000)Palm Fatty Acid Distillate (PFAD) can be modified to oleic acid derivative compounds resulted in 98.7% of methyl oleate (MO), 83.77% of methyl epoxy stearate (MES) and 73.75% of methyl acetoxy stearate (MAS). Blending of ... -
Impregnasi Kayu Kelapa Sawit dengan menggunakan Asap Cair Tempurung Kelapa, Stirena, dan Toluena Diisosianat (TDI)
(Universitas Sumatera Utara, 2009)The palm wood is impregnated by using liquid smoke of coconut shell, styrene, dan toluene diisocyanate (TDI) to see the change of mechanical and physical properties. The test is done by SEM, DTA, FT-IR, and MOE-MOR. The ... -
Pemanfaatan Asap Cair Dari Tempurung Kelapa Sebagai Koagulan Komersial Karet Alam Nias Utara
(Universitas Sumatera Utara, 2013)The use of liquid smoke, the residu, and its destilate as coagulant for natural rubber originally from North Nias District have been researched. All coagulated rubber obtained by using the above coagulants have been ... -
Sintesis dan Karakterisasi Alkil Ester untuk Biodiesel dari Minyak Kelapa Sawit dan Minyak Jarak Pagar
(Universitas Sumatera Utara, 2011)It has been researched to find out the effect of the linear of alkyl alcohol (ethanol) and the branch (isopropanol and 2-butanol) of the characteristic of alkyl ester from palm oil which contains of much palmitic and ... -
Penyediaan Film Mikrokomposit PVC menggunakan Pemlastis Stearin dengan Pengisi Pati dan Penguat Serat Alam
(Universitas Sumatera Utara, 2009)The research of preparing biodegradable composite materials from polyvinyl chloride (PVC) plasticized stearin, empty fruit bunch (EFB) and starch from cassava as fillers, and benzoil peroxide (BPO) as initiator has been ... -
Aminasi Asam Azelat Via Reduksi dengan Hidrogen memakai Katalis Nikel
(Universitas Sumatera Utara, 2009)Amination reaction of azelaic acid included with reaction of an amide formation, in used ammonia pressure with Nickel catalysts and occurred on temperature 180 oC for 5 hours. The product of amide compound mixed in a pyrex ... -
Pembuatan Material Sewlulosa Bakteri dalam Medium Air Kelapa melalui Penambahan Sukrosa, Kitosan dan Gliserol menggunakan Acetobater Xytinum
(Universitas Sumatera Utara, 2008)One of the coconut liquid uses is for making nata de coco or bacterial cellulose. By the modification of both chitosan and glycerol addition, that is, they can be used for medical needs. This experiment is performed by ... -
Pengaruh Suhu dan Waktu terhadap Kandungan Antioksidan Alami pada Proses Deodorisasi Olein Sawit Merah dan Stabilitasnya pada Penggorengan Kripik Singkong
(Universitas Sumatera Utara, 2005)This research was conducted to study the effect of deodorization processing factors (time and temperature) on stability of ?- carotene and vitamin E (so called natural antioxidants) in red palm olein and stability of red ... -
Pengaruh Viskositas Kitosan dari Berbagai Berat Molekul terhadap Pembuatan Kitosan Nanopartikel dengan Menggunakan Ultrasonic Bath
(Universitas Sumatera Utara, 2013)The effect of chitosan viscosity from various molecular weight to the making of nano particle chitosan by using ultrasonic bath has been studied. Chitosan is one of the natural polysaccharide obtained from the deacetylation ... -
Pemanfaatan Selulosa Mikrokristal dari Tandan Kelapa (Cocos Nucifera L) sebagai Pengisi Plastik Polipropilena yang Terbiodegradasikan
(Universitas Sumatera Utara, 2013)A research has been done on the use of making a biodegradable composit with the microcrystal cellulose which is come from coconut bunches (Cocos Nucifera L) and polipropilena. The Characteristic of the composit result which ... -
Studi Campuran Aspal dengan Ban Bekas (Tire Rubber) sebagai Bahan Baku Genteng Polymer Menggunakan Bahan Perekat Isosianat
(Universitas Sumatera Utara, 2010)Used tire can be processed to produce tile raw material polymer by using asphalt as anti water ( waterproof) and addition of 10% natural rubber SIR 20 to get flexed. Mixing and characterization character physical from tile ... -
Uji Sitotoksisitas dan Aktivitas Antioksidan Minyak Atsiri Daun Eucalyptus robusta dari PT. Toba Pulp Lestari, TBK
(Universitas Sumatera Utara, 2021)The main commodity developed by PT Toba Pulp Lestari, Tbk is the Eucalyptus plant which is classified as a fast growing plant. Eucalyptus is a plant that has benefits as an essential oil. Eucalyptus oil obtained from ... -
Sintesis dan Karakterisasi Grafena Quantum Dots dari Grafit Batubara Sawahlunto Melalui Metode Hidrotermal Sebagai Aditif terhadap Konduktivitas Film Berbasis Selulosa Asetat
(Universitas Sumatera Utara, 2021)Graphene quantum dots (GQDs) were grapheme sheet with diameter sizes under 100 nm. It had quantum dot properties generally and high surface area so it proposed as material for LED and energy storage devices applications. ... -
Fabrikasi Lignin/Peo dengan Metode Elektrospinning sebagai Bahan Penyaring Emisi Gas Karbon Monoksida
(Universitas Sumatera Utara, 2021)Carbon monoxide (CO) is the main pollutant from motor vehicle emissions. The impact of CO gas on human health is to bind blood hemoglobin thus reducing the capacity of the blood to bind oxygen. Therefore it is necessary ... -
Pembuatan Hidrogel Semi Interpenetrating Polymer Network dari Selulosa Bakteri dan Asam Akrilat Menggunakan Pengikat Silang N,N’-Metilenbis Akrilamida
(Universitas Sumatera Utara, 2019)Hydrogel semi-interpenetrating polymer network (IPN) based on bacterial cellulose has been sucessfully prepared using crosslinking technique. Hydrogel semi-IPN was prepared using a bacterial cellulose that suspensed in ... -
Pembuatan dan Karakterisasi Hidrogel Berbasis Polivinil Alkohol dengan Pengisi Mikrobentonit
(Universitas Sumatera Utara, 2020)Polyvinyl alcohol (PVA)/ bentonite-based semi interpenetrating polymer network (IPN) hydrogel has been successfully prepared using crosslinked method. Semi-IPN hydrogel was prepared using a suspension of microbentonite in ... -
Pengaruh Waktu dan Jumlah Probiotik pada Fermentasi Campuran Tepung Maggot, Jagung, Dedak, Ampas Tahu, dan Tepung Ikan Terhadap Kualitas Pakan Ternak Ayam Broiler
(Universitas Sumatera Utara, 2020)Effect of time and the amount of probiotic on fermentation mixture maggot flour, corn, bran, soybean curd waste and fish meal have been done on the quality of broiler chicken feed. This research was carried out in three ...
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