Department of Chemistry: Recent submissions
Now showing items 101-120 of 3029
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Formulasi Dan Karakterisasi Sediaan Essence Kitosan Pada Sheet Mask Sebagai Antibakteri Propionibacterium Acnes
(Universitas Sumatera Utara, 2025)Research has been carried out on the use of chitosan in the formulation of a essence sheet mask as an antibacterial. Sheet masks are one of the cosmetics that are widely used by consumers because they contain essence which ... -
Evaluasi Profil Fisikokimia dan Fitokimia Kombucha Berbasis Goji Berry (Lycium barbarum)
(Universitas Sumatera Utara, 2025)Kombucha is traditionally produced using tea; however, it can also be formulated from a variety of alternative substrates, including fruits, herbs, vegetables, and spices. This study investigated the use of goji berries ... -
Analisis dan Karakterisasi pada Scaffold Karbonat Hidroksiapatit (CHA) Berbahan Dasar Biowaste Cangkang Kerang Darah (Anadara granosa)
(2025)Utilization of shellfish waste (Biowaste) as a source of calcium in Carbonate Hydroxyapatite (CHA) Scaffolds that can provide an alternative in environmentally friendly bone tissue engineering. This study aims to make CHA ... -
Pembuatan dan Karakterisasi Superabsorben Polimer Berbasis Natrium Karboksimetil Selulosa dan Hidroksietil Metil Selulosa dengan Asam Ftalat Sebagai Agen Pengikat Silang
(Universitas Sumatera Utara, 2025)This study examines the process of making and characterizing superabsorbent polymer (SAP) based on Sodium Carboxymethyl Cellulose (Na-CMC) and Hydroxyethyl Methyl Cellulose (HEMC). The manufacture of superabsorbent polymer ... -
Penentuan Konsentrasi Logam Timbal, Kadmium, dan Seng pada Road Dust Suspension-Resuspension di Sekitar Dalam dan Luar Kawasan Industri Medan (KIM)
(Universitas Sumatera Utara, 2025)A study was conducted to analyze and compare the concentration of heavy metals Lead, Cadmium, and Zinc in Road Dust Suspension-Resuspension (RDS-R) around the inside and outside of the Medan Industrial Area (KIM). Road ... -
Analisis Konsentrasi Logam Kromium, Kadmium, dan Nikel dari Total Dissolved Solid Road Dust Suspension-Resuspension di Area Bawah Flyover Amplas
(Universitas Sumatera Utara, 2025)This study aims to determine the concentration of Chromium, Cadmium, and Nickel metals from Total Dissolved Solid Road Dust Suspension-Resuspension in the area under Amplas Flyover. The study was conducted by taking road ... -
Analisis Konsentrasi Logam Tembaga, Arsenik, dan Seng dalam Total Suspended Solid dari Road Dust Suspension–Resuspension di Kecamatan Medan Marelan
(Universitas Sumatera Utara, 2025)The development of transportation will result in exhaust gas or road dust which is very dangerous for public health and also the environment. This study was conducted to identify the concentration of metals in Total Suspended ... -
Pemanfaatan Cangkang Kerang Hijau (Perna viridis) sebagai Material Scaffold Carbonat Hidroksiapatit (CHA)
(Universitas Sumatera Utara, 2025)The utilization of green mussel shell (Perna viridis) waste as a calcium source for the synthesis of carbonate hydroxyapatite (CHA) scaffolds offers an environmentally friendly alternative in the field of bone tissue ... -
Karakterisasi Edible Coating dari Nanopartikel Pati Biji Durian dan Minyak Atsiri Serai untuk Memperpanjang Masa Simpan Anggur Merah
(Universitas Sumatera Utara, 2025)This study analyzes the characteristics of edible coating based on durian seed starch nanoparticles added with lemongrass essential oil. The combination of durian seed starch nanoparticles with essential oil can be used ... -
Efektivitas Bioadsorben dari Limbah Kulit Durian Teraktivasi Asam Fosfat (H3PO4 ) dalam Penurunan Kadar Logam Besi (Fe) pada Air Sumur Gali
(Universitas Sumatera Utara, 2025-07-17)The levels of iron (Fe) metal can be reduced by adsorption in water using durian skin waste adsorbent containing cellulose as the basic material for making activated carbon. This study aims to determine how to make activated ... -
Karakterisasi Edible Coating dari Nanopartikel Pati Biji Durian dengan Minyak Atsiri Lemon untuk Memperpanjang Masa Simpan Buah Stroberi
(Universitas Sumatera Utara, 2025)Durian is a tropical fruit widely consumed in Indonesia, which generates waste in the form of peels and seeds. Durian seeds have potential to be utilized as a starch source, which can be processed into a base material for ... -
Pembuatan Mi Kering dari Pati Biji Alpukat (Persea americana) Termodifikasi dengan Metode Fermentasi serta Penambahan Tepung Mocaf dan Garam Fosfat
(Universitas Sumatera Utara, 2025)The utilization of avocado seed waste (Persea americana) as a raw material for dried noodle production represents an innovative approach to the development of functional foods based on local resources. This study aimed to ... -
Efektivitas Dan Formulasi Sediaan Moisturizer Berbasis Karboksimetil Kitosan Dengan Penambahan Niacinamide Sebagai Agen Whitening
(2025)Research has been conducted on the use of carboxymethyl chitosan in the formulation of moisturizer preparations as antioxidant. Moisturizer is a product that helps hydrate the skin and can also provide a brightening effect ... -
Sintesis Metil Eugenol Melalui Reaksi Eterifikasi pada Variasi Mol Kalium Karbonat dan Dimetil Karbonat
(Universitas Sumatera Utara, 2025)This study aims to synthesize methyl eugenol through etherification reaction at various moles of potassium carbonate as base and dimethyl carbonate as methyl group donor. The reaction was carried out under reflux conditions ... -
Analisis Kandungan Cr, Mn, Zn Berdasarkan Kelarutan Dalam Air pada Debu Jalan di Jalan Jenderal Besar A.H. Nasution
(Universitas Sumatera Utara, 2025)Road dust can be contaminated with heavy metals from non-exhaust vehicle emission. Rainfall can carry these heavy metals to water bodies and causing pollution that endangers living organism. This research aims to determine ... -
Aktivitas Antioksidan dan Antimikroba Minyak Nilam (Pogostemon cablin Benth.) dari Hidrodistilasi Menggunakan Radiasi Mikrowave dan Pra-Perlakuan Menggunakan Homogenizer
(Universitas Sumatera Utara, 2025)A combination of homogenizer-assisted cell disruption and microwave-assisted hydrodistillation was conducted to extract patchouli oil (Pogostemon cablin Benth.). This study investigated the effect of stirring time (5, 10, ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Kulit Batang Cemara Angin (Casuarina cunninghamiana Miq.)
(Universitas Sumatera Utara, 2025)The isolation and identification of flavonoid compounds from the bark of Casuarina cunninghamiana Miq. have been carried out through several stages, beginning with maceration extraction using methanol as the solvent, ... -
Pembuatan dan Karakterisasi Superabsorben Polimer Berbasis Natrium Karboksimetil Selulosa dan Hidroksietil Metil Selulosa Menggunakan Asam Suksinat sebagai Agen Ikat Silang
(Universitas Sumatera Utara, 2025)This study examines the preparation of polymer superabsorbent from sodium carboxymethyl cellulose (Na-CMC) and hydroxyethyl methyl cellulose (HEMC) with succinic acid crosslinking agent. The preparation of polymer ... -
Uji Bioaktivitas Antidiabetes dan Identifikasi Senyawa Fenolik dari Fraksi Etil Asetat Kulit Buah Kembang Merak (Caesalpinia pulcherrima (L.) Sw.)
(Universitas Sumatera Utara, 2025)Peacock flower plant (Caesalpinia pulcherrima (L.) Sw.) is traditionally used in medicine and is thought to be influenced by the presence of secondary metabolites. This study aims to test the antidiabetic bioactivity ... -
Sintesis Nanosilikon Menggunakan Metode Hidrotermal dari Sekam Padi sebagai Anoda Baterai Litium-Ion
(Universitas Sumatera Utara, 2024)The hydrothermal method is a simple synthesis method that utilizes chemical reactions in solution at a temperature of 180 0C Hydrothermal is known to be effective in producing synthesized materials with structures that ...