Department of Biology: Recent submissions
Now showing items 921-940 of 1257
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Isolasi Bakteri Keratinolitik dari Limbah Bulu Ayam dan Karakterisasi Enzim Keratinasenya
(Universitas Sumatera Utara, 2015)A study on isolation of keratinolytic bacteria from feather waste and characterization of its keratinase has been done. Isolation was conducted on Skim Milk Agar and Feather Meal Agar incubated at 31 oC and pH 7. Index ... -
Potensi Karbon Tersimpan pada Tegakan Pinus (Pinus merkusii) di Hutan Aek Nauli Kabupaten Simalungun Sumatera Utara
(Universitas Sumatera Utara, 2011)Research Potential of Carbon Stored in pine stands (Pinus merkusii) held at Forest Aek Nauli Simalungun District in December 2010 to April 2011. Research sites is determined by using purposive sampling method. Methods ... -
Pengendalian Biofilm Mycobacterium Fortuitum pada Permukaan Sisik Ikan dan Plastik Pvc dengan Senyawa Antibakteri Bakteri Asam Laktat Perairan Tawar
(Universitas Sumatera Utara, 2013)M. fortuitum is a Mycobacteriosis agent on freshwater fish which are exopthalmia, welling of veins and wounds on the body, pale color, lordosis, scoliosis, and fins of damaged. This study was aimed to identify the potential ... -
Taksonomi dan Distribusi Jamblang (Syzygium Cumini (L) Skeels) di Aceh Besar
(Universitas Sumatera Utara, 2014)The study to determine the taxonomy and distribution of jamblang (Syzygium cumini (L Skeels) has been carried out in district of Aceh Besar from December 2013 until August 2014. Data was collected through observation ... -
Potensi Bakteri Asam Laktat yang Diisolasi dari Pliek U dalam Menghambat Pertumbuhan Beberapa Mikroorganisme Patogen
(Universitas Sumatera Utara, 2013)Pliek u is one of a distinctive food from Aceh Province, Indonesia. The fermentation process of pliek u was done without adding starter culture of bacteria. Lactic acid bacteria (LAB) naturally alleged involved in this ... -
Pemanfaatan Tumbuhan Palem - Paleman (Arecaceae) pada Masyarakat Aceh di Kecamatan Gandapura Kabupaten Bireuen
(Universitas Sumatera Utara, 2014)The utilization of palm by Aceh people in the subdistrict of Gandapura has been studied from January until Apri 2014. Research was conducted using questionair and semi-structured and depth interviews on different ages. ... -
Induksi Tunas Pisang Barangan (Musa Acuminata L.) dengan Pemberian Naa dan Bap berdasarkan Sumber Eksplan
(Universitas Sumatera Utara, 2015)The study or barangan banana (Musa acuminata L.) shoot induction by application of NAA and BAP based on the source of explans that had been carried out in the system Culture Laboratory of the University of North Sumatra. ... -
Hubungan Nilai Produktivitas Primer Fitoplankton dengan Klorofil a dan Faktor Fisika Kimia Air di Sungai Batang Toru Kabupaten Tapanuli Selatan
(Universitas Sumatera Utara, 2011)The research about “Primary Productivity Fitoplankton with chlorophyll a and It’s Relationship with Physic and Chemical Factors of Water in Batang Toru River, Tapanuli Selatan ” was done in November 2010 until March 2011. ... -
Induksi Tunas Pisang Barangan (Musa Acuminata L.) Asal Nias Utara melalui Kultur Jaringan dengan Pemberian 2,4-D dan Kinetin
(Universitas Sumatera Utara, 2015)The research on induction of banana barangan shoot (Musa acuminata L.) from North Nias through tissue culture by giving 2,4-D and kinetin was conducted in the Laboratory of Tissue Culture University of North Sumatera from ... -
Keanekaragaman Plankton sebagai Bioindikator Kualitas Air Sungai Batang Toru
(Universitas Sumatera Utara, 2011)Batang Toru Rivers is one of largest rivers in South Tapanuli, with length of 69,32 km. The water from this river used for drinking water, plantation/agriculture, sand dredging, tourism, transportation facilities. The ... -
Studi Korelasi Kegiatan Budidaya Ikan Keramba Jaring Apung dengan Pengayaan Nutrien (Nitrat dan Fosfat) dan Klorofil-a di Perairan Danau Toba
(Universitas Sumatera Utara, 2011)This research was conducted on November 2010 up to January 2011 in waters of Lake Toba, Province of North Sumatera, in order to know the differences of nutrient concentration (nitrate and phosphate) and concentration ... -
Potensi Bakteri Saluran Pencernaan Ikan Nila (Oreochromis Niloticus) sebagai Kandidat Probiotik Berbasis Enzim
(Universitas Sumatera Utara, 2013)Indonesia is a country that has abundant wealth largest potential of aquaculture in the world. This potency makes the fisheries sector as a source of foreign exchange. The decrease in quality Indonesian fisheries ... -
Studi Altitudinal Vegetasi Pohon dan Pole serta Potensi Karbon Tersimpan di Jalur Pendakian Sigarang-Garang Hutan Gunung Sinabung, Kabupaten Karo
(Universitas Sumatera Utara, 2013)A Study of the altitudinal study tree and pole and potential carbon storage in Sinabung mountain has been conducted from January until Juni 2013. Research conducted by using plot method place purposive random sampling ... -
Ekotaksonomi Tumbuhan Paku di Taman Wisata Alam Sicikeh-Cikeh Kabupaten Dairi Sumatera Utara
(Universitas Sumatera Utara, 2009)The research of ecotaxonomy of pteridophyta has conducted during April 2009 until june 2009 at Nature Park Ecotourism of Sicikeh-cikeh, KAB. Dairi North of Sumatera. Research location determined by using Purposive Sampling ... -
Distribusi dan Pola Pertumbuhan Kepiting Bakau Scylla Tranquebaricadi Ekosistem Mangrove Belawan Sumatera Utara
(Universitas Sumatera Utara, 2013)Research the distribution and growth patterns of mud crab S. tranquebarica in mangrove ecosystem Belawan, North Sumatra has been done. The research aims to determine the physical chemistry characteristics of mangrove ... -
Enkapsulasi Bakteri Kitinolitik pada Benih Cabai untuk Menghambat Serangan sclerotium Rolfsii
(Universitas Sumatera Utara, 2013)A study of the encapsulation of chitinolytic bacteria in alginate, tapioca, carboxymethylcellulose and gum arabic in coated chilli seeds to inhibit Sclerotium rolfsii growth has been done. Six isolates of chitinolytic ... -
Optimalisasi Budidaya Kol Merah (Brassica oleraceae L. var. capitata f. rubra DC) dan Ikan Nila (Oreochromis niloticus L.) pada Sistem Kolam Terpal Akuaponik Terpadu
(Universitas Sumatera Utara, 2021)Aquaponic cultivation is an innovation in the fulfillment of fish and vegetable food needs. The types of fish and vegetables that have not been widely cultivated in aquaponics are tilapia and red cabbage. These are commodity ... -
Keanekaragaman dan Distribusi Bivalvia di Estuari Mangrove Belawan Sumatera Utara
(Universitas Sumatera Utara, 2014)The research on Diversity and distribution of Bivalvia in Mangrove Estuary Belawan was conducted in May up to June 2013. The method for determining the location of sampling for Bivalves was done using Purposive ... -
Pengaruh Lama Fermentasi terhadap Jumlah Koloni Bakteri Asam Laktat Dalam Soyghurt dan Efektifitasnya Pada Penyembuhan Gastritis Lambung Mencit (Mus Musculus L) yang Diinduksi Dengan Aspirin
(Universitas Sumatera Utara, 2013)Using of non-steroidal anti-inflammatory drugs (NSAIDS) such as Acetylsalicyclic acid (ASA) or aspirin in the high community. The effect of aspirin against gastric mucosal irritation to the onset of gastritis. Soygurt ... -
Penapisan Bakteri Kitinolitik Dari Sumber Air Panas Penen, Kecamatan Sibiru-Biru, Kabupaten Deli Serdang dan Karakterisasi Kitinasenya
(Universitas Sumatera Utara, 2013)A study of chitinolytic bacteria from hot springs and characterization of its chitinase has been done. Isolation was done using minimum salt agar with colloidal chitin as the sole carbon source incubated at 53 °C for 7 ...