Department of Chemistry: Recent submissions
Now showing items 241-260 of 3020
-
Modifikasi Pati Sukun (Artocarpus Altilis) melalui Reaksi Esterifikasi dengan Asam Palmitat dalam Media Larutan Naoh/Urea
(Universitas Sumatera Utara, 2024)Palmitic starch was obtained from breadfruit starch (Artocarpus altilis) modified through esterification reaction using palmitic acid in NaOH/Urea solution media. This research was conducted in two stages, namely, isolation ... -
Analisis Kandungan Logam dan Mineral pada Road Deposited Sediment (RDS) dari Mobil Road Sweeper Berdasarkan Perbedaan Ukuran Partikel
(Universitas Sumatera Utara, 2024)A study was conducted to identify the metal and mineral content of Road Deposited Sediment (RDS) from street sweepers based on differences in particle size. RDS is a combination of natural sediments including soil ... -
Konversi Pelepah Sawit dan Plastik HDPE menjadi Bio-Oil melalui Proses Co-Pirolisis Menggunakan Katalis Zeolit Mordenit Diimpregnasi Logam Co dan Fe
(Universitas Sumatera Utara, 2024)Bio-oil derived from the thermal decomposition of waste biomass from oil palm fronds has the potential to be utilized as an alternative energy raw material source. However, its physical and chemical properties have ... -
Sintesis Metil Oleat dari Asam Oleat dengan Metanol pada Variasi Waktu dan Berat Katalis Abu Kulit Durian Menggunakan Radiasi Microwave
(Universitas Sumatera Utara, 2024)The synthesis of methyl oleate from esterification oleic acid with methanol using calcined durian peel ash as catalyst under microwave irradiation. Durian powder was calcinated at 600 ˚C for 4 hours. The main component of ... -
Sintesis Kardanil Metil Eter melalui Eterifikasi Kardanol dari Kulit Biji Jambu Mete (Anacardium Occidentale L.) pada Variasi Jumlah Katalis Tetrabutilamonium Bromida
(Universitas Sumatera Utara, 2024)Synthesis of cardanyl methyl ether was carried out through an etherification reaction between cardanol isolated from Cashew Nut Shell Liquid (CNSL) and dimethyl carbonate. Cardanol isolation was carried out by adding ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Kulit Batang Nam-Nam (Cynometra Caulifora L.)
(Universitas Sumatera Utara, 2024)Isolation of flavonoid compound from stem bark of nam-nam (Cynometra caulifora L.) had been carried out through the extracted maceration with methanol solvent, then re-extracted with ethyl acetate, partitioned extracted ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Biji Palem Palas Payung (Licuala Grandis (T.Moore) H.Wedl.)
(Universitas Sumatera Utara, 2024)Palas payung palm (Licuala grandis (T.Moore) H.Wedl.) is a plant of the palm family (Arecaceae) that has long been used by the community to treat diarrhea, worms, boils, and as a natural dye. Isolation and identification ... -
Efektivitas dan Formulasi Kitosan Oligosakarida pada Sediaan Shampo Anti Rontok dengan Aktivitas Antimikroba Candida Albicans
(Universitas Sumatera Utara, 2024)Chitosan has many functions that are developed in various fields and products. One of the interesting functional properties of chitosan is as an antimicrobial by the interaction between chitosan and the outer cell membrane ... -
Sintesis Kardanil Metil Eter melalui Reaksi Eterifikasi Kardanol Hasil Isolasi Kulit Biji Jambu Mete (Anacardium occidentale L.) dengan Variasi Molar Dimetil Karbonat
(Universitas Sumatera Utara, 2024)Synthesis of cardanyl methyl ether was carried out through an etherification reaction between cardanol isolated from cashew seed shell extract (CNSL) and dimethyl carbonate.Cardanol isolation was carried out by adding ... -
Formulasi Sediaan Hair Tonic Kitosan Oligosakarida dengan Karboksimetil Kitosan sebagai Antijamur terhadap Penyebab Ketombe (Malassezia Globosa)
(Universitas Sumatera Utara, 2024)Research has been conducted on the use of oligosaccharide chitosan and carboxymethyl chitosan in the formulation of hair tonic preparations as antifungal against the cause of dandruff (Malassezia globosa). Hair tonic is ... -
Formulasi dan Karakterisasi Sediaan Body Scrub Karboksimetil Kitosan sebagai Antibakteri
(Universitas Sumatera Utara, 2024)Chitosan has a well-developed function in a variety of fields and products. One of the interesting functional properties of the chitosan to develop is its properties as antibacterial that can remove dead skin cells and ... -
Pembuatan 2-Etilheksil Miristat dari Esterifikasi 2-Etilheksil Alkohol dan Asam Miristat pada Perbandingan Waktu Reaksi dan Daya Mikrowave Menggunakan Katalis Enzim Lipase
(Universitas Sumatera Utara, 2024)The production of 2-Ethylhexyl Miristat from myristic acid and 2-Ethylhexyl alcohol has been performed through esterification reaction using lipase enzyme as catalyst and microwave radiation. The parameters studied in ... -
Sintesis Natrium Selulosa Sulfat dari Limbah Kertas melalui Reaksi Sulfasi pada Pelarut Etanol
(Universitas Sumatera Utara, 2024)Synthesis of sodium cellulose sulfate by sulfation reaction between cellulose from paper and sulfuric acid. Preparation of paper samples was carried out without treatment, washing using NaOH 2% and NaOCl 2%, and isolation ... -
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 ...