Department of Chemistry: Recent submissions
Now showing items 141-160 of 2907
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Isolasi dan Identifikasi Golongan Senyawa Flavonoid dari Kulit Batang Sambung Nyawa (Gynura Procumbens (Lour.)Merr.)
(Universitas Sumatera Utara, 2024)Isolation and identification of the flavonoid compound from the stem bark of sambung nyawa (Gynura procumbens (Lour.) Merr.) had been done by maceration extraction technique with methanol solvent. The methanol extract ... -
Penyediaan Pembalut Luka Bakar Berbasis Selulosa Bakteri Melalui Impregnasi Nanoenkapsulasi Andaliman (Zanthoxylum acanthopodium)
(Universitas Sumatera Utara, 2022)Burns need to be treated with a wound dressing, because the condition of an open wound can be contaminated with bacteria so that it prolongs the healing process. The use of gauze as a wound dressing is not effective because ... -
Penyediaan Komposit Pembalut Luka Diabetes Berbasis Selulosa Bakteri dengan Impregnasi Mikroenkapsulasi Andaliman (Zanthoxylum acanthopdium) dan Potensinya sebagai Pembalut Luka Diabetes
(Universitas Sumatera Utara, 2022)Diabetic foot ulcers or better known as Diabetic Foot Ulcer (DFU) is a common complication of diabetes mellitus that can lead to infection, amputation and even death. Wound healing processes such as DFU can be done with ... -
Analisis Kualitas Sabun Padat Transparan dengan Menggunakan Daun Eucalyptus grandis Sebagai Agen Antibakteri Staphylococcus aureus
(Universitas Sumatera Utara, 2022)Soap is one product that is quite important in people's lives. The need for soap increases from year to year as in BPS data from 2016 to 2021. The purpose of this study was to analyze the quality of transparent solid soap ... -
Sintesis dan Karakterisasi Sediaan Essence Kitosan dalam Sheet Mask sebagai Antibakteri dan Anti-Aging
(Universitas Sumatera Utara, 2022)Research has been carried out on the use of chitosan in the formulation of a essence sheet mask as an antimicrobial and anti-aging. Sheet masks are one of the cosmetics that are widely used by consumers because they contain ... -
Isolasi dan Identifikasi Golongan Senyawa Fenolik dari Daun Tumbuhan Attarasa (Litsea cubeba (Lour.) Pers)
(Universitas Sumatera Utara, 2022)The phenolic compound had been isolated from the leaves of Attarasa (Litsea Cubeba (Lour.) Pers). Isolation was carried out by maceration extraction method with methanol and methanol extact was re-extracted with ethyl ... -
Pemanfaatan Limbah Ampas Tebu sebagai Arang Aktif dalam Penurunan Logam Besi (Fe) dan Kromium (Cr) pada Air Sumur Bor
(Universitas Sumatera Utara, 2022)Bagasse has a cellulose content of 35.01%. Where the very high cellulose content has the potential as activated carbon. Activated carbon is used as an adsorbent for heavy metals. The purpose of this study was to see the ... -
Pengaruh Penambahan Carboxymethyl Celullose sebagai Template terhadap Porositas Material Kalsium Silikat
(Universitas Sumatera Utara, 2022)Research has been conducted on the formation of pore calcium silicate material with the addition of Carboxymethyl Cellulose as a template. Synthesis of Calcium Silicate is done by reacting water glass with Carboxymethyl ... -
Pengaruh Penambahan Resin Epoksi Pada Sifat Thermal dan Morfologi Campuran Karet Alam Cair-Aspal
(Universitas Sumatera Utara, 2023)Asphalt is widely used as a road construction material. Thermal and Morphological Analysis of Liquid Natural Rubber-Asphalt Mixture and Epoxy Resin on the Strength Properties of Asphalt has been carried out. Asphalt used ... -
Uji Aktivitas Antibakteri dan Antioksidan dari Ekstrak Metanol Daun Butterbur (Petasites Hybridus) (L) G. Gaertn., B.Mey.&Scherb)
(Universitas Sumatera Utara, 2023)The dry powder of butterbur leaves (Petasites Hybridus) was extracted using methanol as a solvent. The methanol extract obtained was tested for antibacterial activity using the paper disc diffusion method and the antioxidant ... -
Karakteristik Sifat Mekanik, Morfologi, dan Termal Campuran Karet Alam (SIR-10) dan Karet Alam Epoksi dengan Penambahan Bentonit sebagai Bahan Pengisi
(Universitas Sumatera Utara, 2022)Research on the mechanical, morphological, and thermal characteristics of a mixture of natural rubber (SIR-10) and epoxidized natural rubber with the addition of bentonite as a filler has been carried out. The use of C9 ... -
Analisis Sifat Fisikokimia Lemak Babi pada Mie Goreng dan Analisis DNA Babi Menggunakan Polymerase Chain Reaction (PCR)
(Universitas Sumatera Utara, 2022)Lard is used as a component in food or as a food supplement. Simple analytical methods are required in determining lard in adulterated foods. The purpose of this study was to prepare and extract lard from fried noodles ... -
Pembuatan Natrium Karboksimetil Selulosa (Na-Cmc) dari Selulosa Kulit Durian pada Variasi Berat Natrium Kloroasetat Melalui Reaksi Eterifikasi
(Universitas Sumatera Utara, 2023)Durian peel is an agricultural waste that can be used as a source of cellulose which is then modified into sodium carboxymethyl cellulose (Na-CMC). Cellulose was isolated using a combination of two methods, namely the ... -
Analisis Kandungan Logam Besi (Fe), Kadmium (Cd) dan Kromium (Cr) pada Beberapa Merek Krim Pemutih Wajah dengan Spektrofotometri Serapan Atom (SSA)
(Universitas Sumatera Utara, 2023)This research aims to analyze rate of iron, cadmium, and chromium in whitening cream that distributed in Simpang Limun Market, Medan. Sampel preparation in this resarch using wet digestion method.with HNO3 65% : HCl 37% ... -
Analisis Logam, Kadar Partikulat, dan Komposisi dari Debu Emisi Non-Exhaust Pada Jalan Raya (Lokasi : Jl. Sisingamangaraja)
(Universitas Sumatera Utara, 2023)Air pollution caused by motor vehicles has become a serious issue in many urban areas. Emissions from vehicle exhausts have received due attention, but there is another component that also contributes to air pollution, ... -
Analisis Kandungan Logam Kadmium (Cd), Tembaga (Cu) dan Magnesium (Mg) pada Air Minum Isi Ulang dengan Metode Spektrofotometri Serapan Atom (Ssa
(Universitas Sumatera Utara, 2023)Research has been carried out on the analysis of the elemental content of Cadmium (Cd), Copper (Cu) and Magnesium (Mg) in refillable drinking water using the Atomic absorption spectrophotometry (AAS) method. The aim of ... -
Pembuatan Sediaan Gel dari Ekstrak Etanol Daun Salam (Syzygium polyanthum) sebagai Penyembuh Luka Sayat
(Universitas Sumatera Utara, 2023)Bay leaf (Syzygium polyanthum) which is known to be rich in secondary metabolite compounds is known to have benefits for wound healing. Bay leaves that have been mashed are extracted with ethanol solvent until the results ... -
Potensi dan Aplikasi Bacterial Nanocellulose dari Symbiotic Culture of Bacteria and Yeast untuk Kemasan Makanan Aktif
(Universitas Sumatera Utara, 2023)Bacterial nanocellulose films produced using a green and inexpensive approach can serve as a basic material for replacement of plastic-based packaging. Active food packaging leads to extending the shelf life of food and ... -
Karakteristik Sifat Mekanis, Morfologi, dan Termal Komposit Polietilena Berdensitas Tinggi/Karet Alam Sir 10 Hasil Ekstrusi dengan Pengisi Bentonit Alam
(Universitas Sumatera Utara, 2023)Research on the mechanical, morphological and thermal characteristics of High Density Polyethylene/Natural Rubber/PP-g-MA with natural bentonite filler has been carried out. The HDPEIKA/PP-g-MA mixture was blended using ... -
Analisis Senyawa Dietilen Glikol (DEG) pada Sediaan Obat Sirup Anak Menggunakan Kromatografi Gas
(Universitas Sumatera Utara, 2023)Diethylene Glycol is a compound that has high toxicity and is often used in the preparation of children's syrup. Diethylene Glycol is generally used as a stabilizer or antifreeze agent or a follow-up ingredient in additional ...