335 research outputs found
Analisa Kadar Unsur Hara Karbon Organik dan Nitrogen di dalam Tanah Perkebunan Kelapa Sawit Bengkalis Riau
No full textHave been done analysis value of elemen hara carbon organic and nitrogen in palm plantation land Bengkalis Riau at Pusat Penelitian Kelapa Sawit (PPKS) Medan. The value of carbon organic in analysis by the way of Walkley And Black, while the value of Nitrogen in analysis by the way of Kjeltec Auto Destilation. From analysis result got average of low carbon organik value that is 0,732% or < 1,0%, while analysis result of nitrogen value got average of low that is 0,058% or < 0,10%.60 HalamanKertas Karya Diplom
Pengaruh Pencampuran Perbandingan Wax dan Asphaltene terhadap PP, Viskositas, Wat dari Crude Oil
No full textWax Deagregasi research has been done in the system using the Crude Oil Pour Point Depressant as an additive derived from [Wax] / [asphaltene] by making 5 Crude Oil models according to the comparison that has been determined. Thus obtained results of the analysis of visual observation of the first two models of Crude Oil Crude Oil phase and models II-V has a single phase, models Crude Oil Pour Point II-V is 240C, 210C, 120C and -90C. Test models API Crude Oil II-V are 39.6, 39.1, 38.0, 35. dsan viscosity test models of Crude Oil II-V is 30 982 cS t, 29.021cSt, 24 655 cSt and 15.293cSt. In the FTIR testing that has been done Peak visible similarity between the samples tested.Telah dilakukan penelitian pengaruh pencampuran perbandingan Wax dan Asphaltene terhadap PP,Viskositas,Wat dari Crude Oil yang diperoleh dari [Wax]/[Asphaltene] dengan cara membuat 5 model Crude Oil sesuai perbandingan yang telah ditentukan. Sehingga diperoleh hasil analisa pengamatan visual model Crude Oil I dua fase dan model Crude Oil II-V mempunyai satu fase, Pour Point model Crude Oil II-V adalah 240C, 210C,120C dan -90C. Uji API model Crude Oil II-V adalah 39.6, 39.1, 38.0,dan 35. Uji viskositas model Crude Oil II-V adalah 30.982 cS t, 29.021cSt, 24.655 cSt dan 15.293cSt. Pada pengujian FTIR yang telah dilakukan terlihat kesamaan Peak antara sampel yang yang diuji.Kertas Karya Diplom
Pengaruh Lama Perebusan Tandan Buah Segar terhadap Kadar Minyak dalam Air Rebusan pada Kondensat dan Losses Inti di PKS BAH Jambi
No full textThis study aims to determine the effect of boiling time of fresh fruit bunches and the total percentage of oil content in the boiling water and losses of palm kernel. This research was conducted by varying the boiling time in 80, 90, 100, 105 and 120 minutes. This study used the soxhletation extraction method. The most optimal boiling is 90-105 minutes because the boiling time is very influential in oil loss. The results showed that the oil content in the boiling water at 120 minutes was 0.75% and the core losses at 80 minutes and 120 minutes were 3.42% and 5.78%. From these data it exceeds the percentage of quality standards from the oil content of boiling water and LTDS core losses of 0.50% and 2.50%.51 HalamanKertas Karya Diplom
The Production of 2-Ethylhexyl Oleate from Esterification of 2-Ethylhexyl Alcohol and Oleic Acid on Parameters of Reaction Time and Microwave Power Using Lipase Enzyme as Catalyst
No full textThe production of 2-Ethylhexyl Oleate from oleic acid and 2-Ethylhexyl alcohol has been performed through esterification reaction using lipase enzyme as catalyst and microwave radiation. The parameters studied in this research were reaction time with variations of 0.25, 0.5, 1, 5, 10, 15, and 20 minutes and microwave power with variations of 10%, 20%, 30%, 40% and 50%. Determination of the conversion of 2-Ethylhexyl oleate was established by alkalimetric titration. The confirmation of the production of 2-Ethylhexyl oleate using FT-IR based on the changes in its functional groups. For reaction time parameter, the maximum conversion of 99.02 ± 0.24% was obtained under the conditions of 10 min reaction time, 20% microwave power, 1:3 molar ratio, and 5% catalyst weight. While for the microwave power parameter, the maximum conversion of 97.90 ± 0.42% was achieved using 30% of microwave power, 0.5 minutes reaction time, ratio molar of 1:3 and 5% catalyst weight. %. The formation of ester group of 2-Etilhexyl Oleate was characterized by FT-IR spectrophotometer analysis which showed the presence of -C=O stretching ester absorption band at wave number 1710.56 and supported by -C-O-C- ester stretching vibration at wave number 1036,33 cm-1.67 PagesSkripsi Sarjan
Synthesis of Isopropylpalmitate from The Esterification of Isoprophyl Alcohol and Palm/Tic Acid in Comparison of Reaction Time and Strength Microwave Using Catalyst Lipase Enzyme
No full textSynthesis of isopropyl palmitate from the esterification of isopropyl alcohol and
palmitic acid using a lipase enzyme catalyst has been performed using microwave
radiation. The parameters studied in this study were the effect of reaction time and
microwave power. Confirmation of the formation of isopropyl palmitate was carried out
using an FT-IR spectrophotometer while the conversion was determined using an
alkalimetric titration. The highest conversion of isopropyl palmitate in the parameters
of reaction time and microwave power was obtained under the conditions of reaction
time of 5 minutes, microwave power of 20p, catalyst weight of 20% and molar ratio of
1: 2 of 94. 05 ± 0. 21 %. The formation of isopropyl palmitate was indicated by the
appearance of an ester absorption band at wave number of 1297. I cm-] indicating the
C-OC group with bending vibrations.65 PagesSkripsi Sarjan
Isolasi dan Uji Aktivitas Enzim Amilase dari Kecambah Kacang Merah (Phaseolus Vulgaris) dengan Amobilisasi Menggunakan Gel Poliakrilamida
No full textAmylase enzymes can be isolated from various plants such as sprouts. In this study the amylase enzyme was isolated from red bean sprouts (Phaseoulus vulgaris) with 48 hours of germination. The isolated sprouts produced a crude extract of the enzyme which was then purified by precipitation of 20-40% fraction of ammonium sulfate and dialysis with a pH 7 buffer solution using a cellophane bag membrane to be free from impurities. Amylase enzyme was immobilized by using polyacrylamide gel. The activity of the amylase enzyme was determined by the DNS method using a UV-Visible Spectrophotometer with a wavelength of 530 nm to determine the optimum condition of the enzyme. From this study, the free enzyme activity value was 22.45 (U/mL) and the immobilized enzyme was 21.72 (U/mL) under the same conditions, namely at a temperature of 35oC, pH 7 and reaction time of 15 minutes. The immobilized amylase enzyme can be used repeatedly for 5 times109 HalamanSkripsi Sarjan
Penentuan Kadar Lemak (Oil Grease) pada Limbah Cair Kelapa Sawit dengan Metode Gravimetri
No full textThe determination of oil grease degree has been done to wastewater of oil palm in
land application which is being production by Pabrik Kelapa Sawit Rambutan
PT.Perkebunan Nusantara III (Persero) Tebing Tinggi with gravimetri methode is
separated by soxhletation with some phase that is extraction and destillation. The
results is got showned that rate wastewater which is being production by PKS (Pabrik
Kelapa Sawit) Rambutan are between 5801 – 5935,9 mg/l. The value still obeyed the
standart of determination wastewater of oil palm that is 5000 – 12.000 mg/l. So if
wastewater of oil palm have obeyed the standart of determination could wasted to the
river.52 HalamanKertas Karya Diplom
Analisa Unsur Hara Fosfor (P) pada Daun Kelapa Sawit Secara Spektrofotometri di Pusat Penelitian Kelapa Sawit (PPKS) Medan
No full textHave been conducted by analysis element of hara phosphorus (P) at palm leaf in Indonesian Oil Palm Research Institute at Medan. Determination of phosphorus rate
(P) in palm leaf conducted with method of Spektrofotometri UV-Visible. Result of analysis indicate that phosphorus rate the obtained is 0,139% - 0,150% in palm leaf. Of this result indicate that phosphorus rate in palm leaf still less, answer the demand of standard which have been determined by that is between 0,16%-0,19%.44 HalamanKertas Karya Diplom
Synthesis of 2-Ethylhexyl Oleate from Esterification of 2-Ethylhexyl Alcohol and Olei Cacid at Different Molar Ratio and Concentration of Lipase Enzyme Using Microwave Radiation
No full textSynthesis of 2-Ethylhexyl Oleate from oleic acid and 2-ethylhexyl alcohol through esterification reaction using lipase enzyme as catalyst and microwave radiation has been conducted. The reaction conditions carried out in this study were variation of catalyst weight (0.5%; 1%; 3%; 5%; 7%; 9%; 11%) and variation of molar ratio of oleic acid to 2-ethylhexyl alcohol (1:1, 1:2, 1:3, 1:4, 1:5), with 20% microwave power and 10 minutes reaction time in each variation. The conversion of 2-Ethylhexyl Oleate was determined using alkalimetric titration. The formation of 2-Ethylhexyl Oleate was analyzed from the changes of its functional groups using FT-IR. The maximum conversion of 2-Ethylhexyl Oleate of 94.04 ± 0.40% was obtained for the catalyst weight parameter at 5% catalyst weight, 1:2 molar ratio, 20% microwave power and 10 minutes time. While for the molar ratio parameter obtained in the condition of 1:3 molar ratio, 5% catalyst weight, 20% microwave power and 10 minutes time, amounted to 99.02 ± 0.24%. The formation of ester group of 2-Etilhexyl Oleate was characterized by FT-IR spectrophotometer analysis which showed the presence of -C=O stretching ester absorption band at wave number 1710.86 and supported by -C-O-C- ester stretching vibration at wave number 1039.63 cm-1.79 PagesSkripsi Sarjan
Uji Disolusi Kapsul Kloramfenikol secara Spektrofotometri UV-Visible yang di Produksi oleh PT. Kimia Farma (Persero) Tbk. Plant Medan
No full textChloramphenicol is a broad-spectrum antibiotic that is active against gram
positive and gram negative bacteria that are currently used by people to treat these
types of infections due to bacteria by inhibiting protein synthesis required for the
formation of the bacterial cells widely. The purpose of this test is to determine
whether Chloramphenicol capsules produced by PT. Kimia Farma (Persero) Tbk.
Plant Medan has been fulfilled dissolution test of the requirements as determined
by the Pharmacopoeia Edition V. Chloramphenicol capsules must go through a
series of tests to determine the quality of the capsule. One of the test is the
dissolution test. Where dissolution is a process of transfer of drug molecules from
the solid become the solution medium. The sample consisted of six capsules taken
from a single batch. Dissolution test was performed by using a type of basketball
(basket method) and the assay solute conducted by using UV-Visible
spectrophotometry. So from the test results shown that the levels of solute from all
six tablets capsule chloramphenicol 250 mg examined are 91.715%, 96.181%,
96.250% 92 900%, 97.836% and 95.091% with high levels of solute average
capsule chloramphenicol 250 mg 95.091% is in accordance with the limits set in
the Indonesian Pharmacopoeia Edition V.62 HalamanKertas Karya Diplom
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