Master Theses
Master Theses
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Now showing items 341-360 of 381
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Analisis Komponen Kimia Minyak Atsiri dan Uji Aktivitas Antioksidan Maupun Antibakteri Minyak Atsiri Serta Ekstrak Air Dan Ekstrak Etanol Batang Kecombrang (Etlingera elatior)
(Universitas Sumatera Utara, 2016)Essential oils of the rod of Kecombrang (Etlingera elatior) has been isolated with hydrodistillation method using Stahl. Kecombrang rod have hydrodistillation during ± 4-5 hours resulting essential oil amount 0.01724%. ... -
Pengaruh Pencucian Terhadap Kandungan Residu Pestisida Profenofos Pada Buah Tomat dengan Kromatografi Gas
(Universitas Sumatera Utara, 2015)Tomatoes is one of horticultural commodity that is very popular with Indonesian people’s.This Research aims to determine the effect of washing step of tomato fruit on Pesticides profenofos residues by using gas chromatography ... -
Pembuatan Komposit Interpenetrasi Jaringan Polimer antara Poliuretan-Karet Alam Sir-10 dengan Penambahan Montmorillonit Sebagai Bahan Pengisi
(Universitas Sumatera Utara, 2016)Interpenetrating polymer network (IPN) has been synthesized by using SIR-10 Natural Rubber (NR) and polyurethane (PU) simultaneously then added to montmorillonite (MMT) as a filler in the IPN composite formation. Prepolymer ... -
Pemanfaatan Kefir dan Inulin dari Umbi Bengkoang (Pachyrhizus Erorus) pada Minuman Probiotik dari Susu Segar Kambing Etawa
(Universitas Sumatera Utara, 2019)Research has been carried out on the utilization of kefir and inulin isolated from bengkoang tubers in making probiotic drinks from fresh milk etawa goats. The study began by extracting inulin from bengkoang tuber extract ... -
Senyawa dan Aktivitas Antimikroba Asam Lemak dan Esternya dari Biji Durian (Durio Zibethinus Murr)
(Universitas Sumatera Utara, 2017)The Research related by extraction fatty acids and synthesis of its ester from durian seed to test antimicrobial activity against bacterial pathogens have been done. Extraction of fatty acids has done by maceration method ... -
Uji Aktivitas Antibakteri dan Toksisitas Senyawa Flavonoid dan Tanin dari Ekstrak Daun Jambu Monyet (Anacardium occidentale. L)
(Universitas Sumatera Utara, 2017)Researches of the antimicrobial and toxicity activity tests total flavonoids and total tannins from extract of cashew leaf (Anacardium occidentale. L). This study aims to determine the antimicrobial and toxicity activity ... -
Deteksi Metronidazole Menggunakan Elektroda Tembaga Termodifikasi Kitosan-Grafena Oksida Tereduksi dengan Metode Cyclic Voltammetry
(Universitas Sumatera Utara, 2019)Chitosan-reduced graphene oxide (rGO) modified electrode was conducted for detection of metronidazole by cyclic voltammetry method. Composition of chitosan-rGO was varied in chitosan matrix to confirm the high current ... -
Karakterisasi Bionanokomposit Pati Sukun/PVA yang Diinkorporasi Dengan Nanoserat Selulosa dan Aloe Vera
(Universitas Sumatera Utara, 2019)Characterization of breadfruit starch/PVA bionanocomposite that incorporation with nanofibre cellulose and aloe vera has been carried out. Cellulose nanofibre were isolated by acid hydrolysis using 45% H2SO4 and mechanical ... -
Pembuatan dan Karakterisasi Kitosan-Karbon Aktif dari Ampas Kopi Sebagai Adsorben Untuk Menurunkan Kadar Logam Kadmium dan Nikel
(Universitas Sumatera Utara, 2019)Preparation and characterization of chitosan with activated carbon from coffee grounds have been made with the aim of reducing the metal content of Cadmium (Cd) and Nickel (Ni) in standard solutions. This study consisted ... -
Sintesis Turunan Kitosan Melalui Reaksi Antara Kitosan Dengan Epiklorohidrin dan Dietilen Triamin Serta Pengujian Adsorpsi Terhadap Ion Logam Cu2+, Zn2+ dan Fe2+
(Universitas Sumatera Utara, 2019)The chitosan derivatives were synthesized through Schiff base formation and alkylation using diethylene triamine and epichlorohydrin, with and without the presence of benzaldehyde. The first derivative product was chitosan ... -
Isolasi dan Identifikasi Senyawa Flavonoida dari Daun Tumbuhan Mundu (Garcinia Dulcis (Roxb) Kurz) Serta Uji Aktivitas Antibakteri dan Antioksidan
(Universitas Sumatera Utara, 2019)Isolation and identification of flavonoid compound of mundu (Garcinia dulcis(Roxb) kurz) leaves and antibacterium and antioxidant test.The process of flavonoid compound isolation begins with the process of maceration ... -
Analisis Unsur Logam Merkuri (Hg) dan Timbal (Pb) yang Terdapat pada Air dan Sedimen Sungai Sekitar Pertambangan Emas di Sumatera Utara (Batang Toru)
(Universitas Sumatera Utara, 2019)Research has been carried out on the analysis of Mercury (Hg) and Lead (Pb) metals in rivers around gold mining in North Sumatra (Batang Toru). The purpose of this study was to analyze the heavy metal content of Mercury ... -
Isolasi dan Penentuan Aktivitas Antioksidan dan Antibakteri dari Flavonoida Total, Alkaloida Total dan Terpenoida Total Kulit Manggis (Garcinia Mangostana L)
(Universitas Sumatera Utara, 2019)Phytochemical screening showed that mangosteen peel contains alkaloids, flavonoids and terpenoids. 3 kg of mangosteen peel extracted with methanol obtained a solid extract of 237.10 g. Through the partition process, total ... -
Studi Pengaruh Dosis Zeolit yang Dicampurkan Pupuk TSP Terhadap Jumlah Fosfat Tersedia di dalam Tanah
(Universitas Sumatera Utara, 2017)A study on the effect of zeolite dosage mixed TSP fertilizers to the amount of phosphates available in soil was carried out. The purposes of this research were to obtain the optimum dose of zeolite mixed with TSP fertilizer ... -
Sintesis Selulosa Sitrat dan Suksinat dari Selulosa Kulit Durian (Durio Zibethius murr) Dan Pemanfaatannya Sebagai Pengadsorpsi Ion Logam Pb2+
(Universitas Sumatera Utara, 2017)Cellulose from durian peel was isolated then esterificated with citric acid and succinic acid with the ratio of cellulose 1:1, 1:2, 1:3 gave citric cellulose (w/w). The result of FT-IR spectroscopy in the forming of citric ... -
Studi Kandungan Radionuklida Alam pada Tanaman Palawija Disekitar Tanah Karo Pasca Erupsi Gunung Sinabung Sumatera Utara
(Universitas Sumatera Utara, 2017)Natural radionuclides of plants food are the main sources of internal radiation exposure in human. Mount Sinabung is one of the active volcanoes which in the past 10 years it has been always shown a continuous activity ... -
Studi Pengaruh Penambahan Zeolit Terhadap Konsentrasi Fosfat Tersedia di dalam Tanah
(Universitas Sumatera Utara, 2016)A study on the effect of adding zeolite to the availability of phosphate in the soil have been done. Natural zeolite was activated at a temperature of 250 ° C for 4 hours with a size of 100 mesh was mixed with fertilizer ... -
Pembuatan dan Karakterisasi Film Nanokomposit Polivinil Alkohol/Nanokristal Selulosa yang Diisolasi dari Pelepah Nipah (Nypa fruticans)
(Universitas Sumatera Utara, 2016)The manufacture of film nanocomposites polyvinyl alcohol/cellulose nanocrystal (PVA/NCC) isolated from nypa palm (Nypa fruticans) have been done. The isolation process was carried out in two stages: that is α-cellulose ... -
Studi Perbandingan Kadar Logam Arsenik (As) dan Besi (Fe) pada Air Zamzam yang Diperdagangkan dan Air Zamzam Mekkah Melalui Metode Inductively Coupled Plasma – Mass Spectrometry (ICP-MS)
(Universitas Sumatera Utara, 2016)The research of the comparative study on the level of metal content of Zamzam water that is traded compared with original Zamzam water from Mecca - Saudi Arabia, has been carried out. The analyzed samples were the genuine ... -
Preparasi dan Karakteristik Elektromagnetik dari Komplek Fe-Basa Schiff Kitosan
(Universitas Sumatera Utara, 2017)Chitosan Schiff base (BS) has been synthesized through reaction of chitosan with salycilaldehyde, next, chitosan Schiff base (BS) reacted with Fe to form Fe-chitosan Schiff base complex (BSF). The presence of Schiff base ...
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