Faculty of Mathematics and Natural Sciences: Recent submissions
Now showing items 1501-1520 of 11352
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Aktivitas Antibakteri dari Sabun Transparan yang ditambahkan Avocado Oil dan Ekstrak Bunga Telang (Clitoria Ternatea)
(Universitas Sumatera Utara, 2022)Butterfly pea flowers contain secondary metabolites, one of which is antibacterial, because it has potential as an alternative to antibiotics. The purpose of the research was to increase the function of transparent soap ... -
Pembuatan dan Karakterisasi Edibel Film dari Pati Bonggol Pisang Batu (Musa Balbisiana) dengan Polivinil Alkohol dan Glutaraldehid
(Universitas Sumatera Utara, 2023)The manufacture and characterization of the stone banana hump (Musa Balbisiana) starch film with polyvinyl alcohol and the addition of glutaraldehyde has been carried out. Edible Film is made in two ways. First, the film ... -
Sintesis Nanopartikel Carbon Dots (C-Dots) dari Air Tebu dengan Agen Pasivasi Etilendiamin menggunakan Metode Microwave
(Universitas Sumatera Utara, 2022)Synthesis of carbon dots nanoparticles from sugarcane juice with ethylendiamine passivation agent using the microwave method at 1100 watts of power has been carried out. Sugarcane juice and ethylendiamine with a ratio of ... -
Rancang Bangun Alat Pemilah dan Penghitung Buah dengan Menggunakan Laser Berbasis Mikrokontroller Atmega328
(Universitas Sumatera Utara, 2021)Companies always try to replace work that has been done by humans to be replaced with machines in order to improve efficiency and improve the quality of their production.Along with the development and advancement of science ... -
Uji Ekstrak Daun Afrika (Vernonia Amygdalina Del.) terhadap Nilai Hematologi Mencit (Mus Musculus L.) Model Diabetes
(Universitas Sumatera Utara, 2022)Research the effect of Daun Afrika (Vernonia amygdalina Del.) leaf extract on the hematological value of mice (Mus musculus L.) induced by streptozotocin was carried out from May 2022 to August 2022. African leaves (Vernonia ... -
Deteksi Virus Gemini pada Tanaman Tomat (Solanum Lycopersicum Mill.) di Kabupaten Simalungun Sumatera Utara dengan Teknik Pcr
(Universitas Sumatera Utara, 2022)Geminivirus is a type of virus that attacks tomato plants. The symptoms of the disease caused by the Geminivirus are difficult to distinguish morphologically from other viruses, therefore the Polymerase Chain Reaction (PCR) ... -
Fitososiologi Pohon di Kawasan Suaka Margasatwa Siranggas, Kabupaten Pakpak Bharat, Sumatera Utara
(Universitas Sumatera Utara, 2023)Siranggas Wildlife Sanctuary is a conservation area in the lower mountainous area that has various types of trees, but this location is an area that is vulnerable to damage due to exploitation. The purpose of this study ... -
Gambaran Histologis Hepar Mencit (Mus Musculus L.) Model Diabetes Tipe-2 Setelah Pemberian Ekstrak Etanol Daun Afrika (Vernonia Amygdalina Del.)
(Universitas Sumatera Utara, 2022)An experiment of the histological profile of the mice’s liver (Mus musculus L.) suffered of type-2 diabetes model and applied by African leaf extract (Vernonia amygdalina Del.) was carried out from May to August 2022. This ... -
Jenis-Jenis Arecaceae di Kawasan Suaka Margasatwa Siranggas Kabupaten Pakpak Bharat Sumatera Utara
(Universitas Sumatera Utara, 2023)The Siranggas Wildlife Sanctuary area is one of the tropical forests in North Sumatra that is rich in plant species, one of which is the Arecaceae tribe, but it is not yet known how many types there are. The Siranggas ... -
Keanekaragaman Jenis Tumbuhan Bawah di Kawasan Suaka Margasatwa Siranggas Kabupaten Pakpak Bharat Sumatera Utara
(Universitas Sumatera Utara, 2022)Siranggas Wildlife Sanctuary is a natural reserve forest that has various species of understories in terms of the structure of the forest constituents, but the diversity of understory in the region has never been known. ... -
Kelimpahan Insekta Polinator (Elaeidobius Kamerunicus Faust.) di PT Perkebunan Nusantara Iv Gunung Bayu, Kabupaten Simalungun Sumatera Utara
(Universitas Sumatera Utara, 2023)Weevil Elaeidobius kamerunicus Faust is a pollinator insect that breeds and feed only on male inflorescences of oil palm. The body size of pollinator insects is an important factor influencing the effectiveness of pollination. ... -
Efek Ekstrak Daun Afrika (Vernonia Amygdalina Del.) terhadap Kadar Gula Darah dan Gambaran Histologi Pankreas pada Mencit (Mus Musculus L.) Model diabetes
(Universitas Sumatera Utara, 2023)The Research on the effect of Afrika (Vernonia amygdalina Del.)leaf extract on blood sugar levels and pancreatic histology in mice (Mus musculus L.) diabetic model was conducted from May to August 2022. Afrika leaf plants ... -
Sintesis Nikel Kompleks sebagai Katalis Hidrogenolisis Campuran Gliserol dan Glukosa
(Universitas Sumatera Utara, 2022)Research has been carried out on the hydrogenolysis of a mixture of glycerol and glucose with nickel synthesis catalyst. This catalyst is synthesized from NiCl2.6H2O to [Ni(NH3)2]Cl2 which is purple in color. Heating at ... -
Pembuatan Metil Selulosa dari Selulosa Daun Nanas (Ananas Cosmosus.L) dengan Dimetil Sulfat melalui Reaksi Eterifikasi pada Variasi Temperatur
(Universitas Sumatera Utara, 2022)The manufacture of methyl cellulose was carried out through an etherification reaction between α-cellulose isolated from pineapple leaves (Ananas Cosmosus.L) with dimethyl sulfate. Isolation of α-cellulose was carried out ... -
Isolasi Enzim Amilase dari Aspergillus Niger dengan Metode Fermentasi Padat untuk Pembuatan Sirup Glukosa dari Pati Limbah Biji Alpukat
(Universitas Sumatera Utara, 2022)Enzymatic production of glucose syrup from avocado seed starch has been completed. The amylase enzyme used in this study was obtained from the isolation of the Aspergillus niger which was cultured by Solid State Fermentation ... -
Pemanfaatan Enzim Selulase dari Aspergillus Niger Secara Fermentasi Padat untuk Menurunkan Kadar Serat Kasar pada Pakan Ikan Nila (Oreochromis Niloticus)
(Universitas Sumatera Utara, 2022)One of the wastes that is rarely used in Indonesia is fruit waste. The part of the fruit that often becomes waste is the skin of the fruit. Fruit waste that is still rarely used, especially in North Sumatra is passion fruit ... -
Isolasi dan Identifikasi Golongan Senyawa Fenolik dari Kulit Batang Tumbuhan Kalpataru (Hura Crepitans Linn.)
(Universitas Sumatera Utara, 2022)Isolation and identification of groups of phenolic compound contained in the bark of the Kalpataru Plant (Hura crepitans Linn) have been carried out by maceration extraction using methanol as a solvent. The concentrated ... -
Isolasi dan Uji Aktivitas Enzim Protease dari Ekstrak daun Pepaya (Carica Papaya L) Serta Amobilisasi Menggunakan Gel Poliakrilamida
(Universitas Sumatera Utara, 2022)Isolation of protease enzymes from papaya leaf extract (Carica papaya L) and enzyme purification has been conducted by precipitation method with ammonium sulfate at a concentration of 40-60% and dialysis with cellophane ... -
Isolasi dan Identifikasi Golongan Senyawa Fenolik dari Kulit Batang Tumbuhan Delima (Punica granatum L.)
(Universitas Sumatera Utara, 2022)The phenolic compound had been isolated from the stem bark of pomegranate (Punica granatum L.). Isolation was carried out by maceration extraction method with methanol and methanol extract was re-extracted with ethyl acetate ... -
Studi Pembuatan Grafena Nano Sheet (GNS) dari Tempurung Kelapa yang direndam dalam Minyak Tanah
(Universitas Sumatera Utara, 2022)Research has been done on the manufacture of graphene nano sheet (GNS) from coconut shell that soaked in kerosine. Coconut shell are converted to graphene through the carbonization process. Graphene is a carbon in the form ...