Department of Chemistry: Recent submissions
Now showing items 81-100 of 3029
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Kinerja Nikel/Grafena Berlapis Nano dan Perak/Grafena Berlapis Nano dari Cangkang Kemiri Menggunakan Metode Pirolisis Sebagai Antibakteri Staphylococcus aureus
(Universitas Sumatera Utara, 2025)Research on the Performance of Nickel/Graphene Nano Sheets (Ni/GNS) and Silver/Graphene Nano Sheets (Ag/GNS) from Candlenut Shells Using Pyrolysis Method as Antibacterial Staphyloccocus aureus has been conducted. The purpose ... -
Pembuatan Handbody Cream dari Eksktrak Etanol Daun Kemuning (Murraya panicula L Jack) dengan Uji Antioksidan Metode DPPH dan Uji Toksisitas
(Universitas Sumatera Utara, 2025)Handbody cream is a skin care product in the form of cream that is used to moisturize and care for the body skin, including hands, feet, and other body parts. The leaves of Kemuning contain several alkaloid compounds that ... -
Karakterisasi Edible Coating dari Nanopartikel Pati Biji Durian dan Minyak Atsiri Kayu Manis untuk Memperpanjang Masa Simpan Pisang Barangan
(Universitas Sumatera Utara, 2025)Barangan banana (Musa acuminata L.) is one of Indonesia’s leading horticultural commodities with significant economic value. However, it is highly susceptible to postharvest deterioration due to rapid physiological processes. ... -
Modifikasi Pati Sukun (Artocarpus altilis) melalui Reaksi Oksidasi Menggunakan Kalium Permanganat
(Universitas Sumatera Utara, 2025)Carboxylic starch can be produced from the modification process of breadfruit starch (Artocarpus altilis) through oxidation reaction using potassium permanganate. This research was conducted in two stages, namely, isolation ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Kulit Batang Jirak (Eurya acuminata DC)
(Universitas Sumatera Utara, 2025)Isolation and identification of flavonoid compounds from the bark of Jirak (Eurya acuminata DC.) has been done through several stages, namely maceration extraction with methanol solvent, fractionation with ethyl acetate ... -
Pengaruh Variasi Waktu Aging terhadap Morfologi Hidroksiapatit Hasil Sintesis dari Cangkang Telur Bebek (Anas platyrhynchos domesticus) melalui Metode Pengendapan Basah
(Universitas Sumatera Utara, 2025-07-21)Hydroxyapatite (HAp) was successfully synthesized from duck eggshells using the wet precipitation method with aging time variations of 12, 24, and 36 hours. This study aimed to evaluate the effect of aging time on the ... -
Karakteristik Kertas Dokumen Berbasis Pulp Kapas, Selulosa Bakteri Dari Kombucha, dan Kalsium Karbonat Sebagai Bahan Pengisi
(Universitas Sumatera Utara, 2025)Research on the manufacture of document paper based on natural pulp consisting of cotton fiber, bacterial cellulose from kombucha, and the addition of calcium carbonate (CaCO₃) as a filler. This study aims to examine the ... -
Sintesis Dan Karakterisasi Nitrogen-Doped Carbon Dots (N-CDs) Berbasis p-Aminofenol Melalui Metode Hidrotermal
(Universitas Sumatera Utara, 2025)The development of nanotechnology encourages the search for new nano-sized functional materials with good optical properties and high biocompatibility. One of the materials that meets these criteria is carbon dots (CDs), ... -
Sintesis Dan Karakterisasi Hidroksiapatit Dari Limbah Cangkang Keong Mas Melalui Analisa Komposisi Kimia Dan Morfologi
(Universitas Sumatera Utara, 2025)The synthesis of hydroxyapatite (HAp) from golden apple snail shells (Pomacea canaliculata) has been carried out using the wet precipitation method. This study aims to evaluate the effect of varying calcium oxide (CaO) ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Kulit Batang Pirdot (Saurauia vulcani Korth.)
(Universitas Sumatera Utara, 2025)Isolation and identification of flavonoid compound from the bark of Pirdot (Saurauia vulcani Korth.) had been carried out through the maceration extraction stage with methanol solvent. The methanol extract dissolved with ... -
Pembuatan Mi Kering Tersubstitusi Tepung Kelapa (Cocos nucifera) dan Tepung Mocaf dengan Penambahan Pektin dari Kulit Jeruk Manis (Citrus sinensis)
(Universitas Sumatera Utara, 2025)Sweet orange peel (Citrus sinensis) is an agro-industrial waste that contains high amounts of pectin and has potential as a natural food additive. Pectin functions as a chewing and texture-forming ingredient in processed ... -
Sintesis Isoamil Miristat dari Asam Miristat pada Variasi Konsentrasi Katalis Asam Sulfat dan Rasio Mol Asam Miristat dan Isoamil Alkohol Menggunakan Alat Pendispersi Homogen
(Universitas Sumatera Utara, 2025)Synthesis of isoamyl myristate from the reaction of esterification reaction between myristic acid and isoamyl alcohol catalyzed by sulfuric acid. catalyst using a homogeneous dispersing device at room temperature has been ... -
Sintesis Metil Oleat Menggunakan Katalis Deep Eutectic Solvents Pada Variasi Waktu Reaksi dan Kecepatan Pengadukan Pendispersi Homogen
(Universitas Sumatera Utara, 2025)Methyl oleate synthesis was carried out through an esterification reaction between oleic acid and methanol using a Deep Eutectic Solvent (DES) catalyst with a homogeneous disperser. The DES catalyst was obtained from a ... -
Analisis kandungan Logam berat Besi, Tembaga, dan Mangan Pada Road Dust Resuspension-Suspension (RDR-S) di Jalan Jamin Ginting
(Universitas Sumatera Utara, 2025)This study aims to determine the concentration and compare heavy metals in road dust Road Dust Resuspension-suspension (RDR-S) at two identical locations on Jamin Ginting Road in Medan. The analysis of metal concentrations ... -
Sintesis Metil Oleat dari Asam Oleat dan Metanol pada Variasi Rasio Mol dan Katalis K2O/Zeolit Menggunakan Pengaduk Pendispersi Homogen
(Universitas Sumatra Utara, 2025)The synthesis of methyl oleate was carried out through an esterification reaction between oleic acid and methanol using a K₂O/zeolite catalyst and a homogenizing disperser stirrer. The K₂O/zeolite catalyst was prepared via ... -
Sintesis Isoamil Miristat dari Asam Miristat pada Variasi Waktu dan Kecepatan Pengadukan Menggunakan Alat Pendispersi Homogen
(Universitas Sumatera Utara, 2025)Synthesis of isoamyl myristate from the esterification reaction between myristic acid and isoamyl alcohol with sulfuric acid catalyst using a homogeneous dispersing tool at room temperature has been carried out at variations ... -
Sintesis Basa Schiff melalui Kondensasi Selulosa Dialdehida dari Tandan Kosong Kelapa Sawit dengan Etilendiamina sebagai Wet Strength Agent (WSA)
(Universitas Sumatera Utara, 2025)Cellulose was isolated from empty palm bunches (TKKS) using a combination of 3.5% HNO3, 2% NaOH, Na2SO3, 1.75% NaOCl, and 10% H2O2. A total of 18.167 g of cellulose was obtained, which corresponds to 24.22% of the initial ... -
Isolasi Dan Identifikasi Golongan Senyawa Flavonoida Dari Kulit Batang Bakau Api – Api (Avicennia marina (Forssk.) Vierh.)
(Universitas Sumatera Utara, 2025)Isolation and identification of flavonoid compounds from the bark of the api- api mangrove (Avicennia marina (Forssk.) Vierh.) have been carried out through several stages, namely maceration extraction with methanol ... -
Fortifikasi Bayam Merah (Amaranthus tricolor L.) sebagai Sumber Nitrogen dan Zat Besi pada Nata de Leri Ketan Putih dalam Mencegah Anemia
(Universitas Sumatera Utara, 2025)Anemia is recognized as a global health issue primarily caused by iron deficiency. A potential strategy to address this problem has been identified in food fortification. In this research, the potential of red spinach ... -
Sintesis Metil Oleat dari Esterifikasi Asam Oleat dan Metanol pada Perbandingan Rasio Mol dan Berat Enzim Lipase Menggunakan Peralatan Pendispersi Homogen
(Universitas Sumatera Utara, 2025)The synthesis of methyl oleate from oleic acid and methanol through esterification has been performed using homogeneous dispersion equipment and lipase enzyme as a catalyst. This study focuses on the effect of variations ...