Department of Biology: Recent submissions
Now showing items 401-420 of 1294
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Isolasi dan Potensi Bakteri Keratinolitik dari Feses Buaya (Crocodylus sp.) dalam Mendegradasi Limbah Keratin
(Universitas Sumatera Utara, 2015)Keratin is an insoluble protein found in feather. Many microorganisms such as fungi and bacteria have been isolated for their ability to degrade keratin. Keratinolytic microorganism could be found in bird feeder animal ... -
Pengaruh Sistem Pemeliharaan Ternak Intensif dan Semi Intensif terhadap Prevalensi Nematoda Gastrointestinal pada Kambing
(Universitas Sumatera Utara, 2016)Research on effect of intensive and semi intensive livestock system maintenance for the prevalence nematode gastrointestinal of goats. The method used is sedimentation using Glassbead. There were 30 feces of goat taken ... -
Kepadatan dan Pola Pertumbuhan Ikan Jurung (Tor Spp.) di Perairan Sungai Bahorok Kabupaten Langkat Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2015)Research Density and Growth Pattern Fish Jurung (Tor spp.). Bahorok River Waterway Langkat North Sumatra province has been done in December 2014. The purpose of this study was to determine the density and pattern of ... -
Produksi Katekin pada Kultur in Vitro Kalus Teh (Camellia sinensis L.) dengan Elisitasi Saccharomyces cerevisiae
(Universitas Sumatera Utara, 2015)The study of “Catechin Production of In Vitro Culture of Tea Callus (Camellia sinensis L.) was elicitated by Saccharomyces cerevisiae” has been done from March 2014 to October 2014 at Plant Tissue Culture Laboratory ... -
Kemampuan Bakteri dari Tempat Pembuangan Akhir (TPA) dalam Mendegradasi Plastik (Low Density Polyethylene)
(Universitas Sumatera Utara, 2017)The low density polyethylene (LDPE) is one of environtmental pollutant and its biodegradation was the focus of the present study. Biodegradation test of LDPE was done using bacteria isolated from Namo Bintang waste ... -
Isolasi dan Uji Ekstrak Metanol Bakteri Endofit Keji Beling (Strobilanthes crispus) dalam Menghambat Pertumbuhan Beberapa Mikroba Patogen
(Universitas Sumatera Utara, 2014)A study on isolation and examination methanol extract of endophytic bacteria from keji beling (Strobilanthes crispus) in inhibiting Salmonella typhii, Streptococcus mutans, Escherichia coli and Aspergillus flavus microbe ... -
Isolasi Khamir dari Nira, Tuak dan Laru Asal Pulau Nias dan Uji Kemampuannya dalam Memproduksi Bioetanol dari Limbah
(Universitas Sumatera Utara, 2016)Bioethanol is a product of sugar fermentation by yeast. Many strains of yeast have been isolated for their abilities to produce bioethanol. This study was conducted to isolate and to evaluate yeast potential from nira, ... -
Keanekaragaman Plankton di Perairan Sungai Sibiru-Biru, Kecamatan Sibiru, Kabupaten Deli Serdang, Sumatera Utara
(Universitas Sumatera Utara, 2016)An experiment in Sibiru-biru River has been conducted to know plankton diversity, physical and chemical parameters of water in relation to the diversity of plankton. Plankton diversity assessed through “purposive random ... -
Keanekaragaman Genetik Padi (Oryza sativa L.) Lokal Sumatera Utara dengan Menggunakan Penanda Simple Sequence Repeat (SSR)
(Universitas Sumatera Utara, 2017)Analysis genetic diversity of local rice Sumatera Utara can be done using molecular markers, one of which is the Simple Sequence Repeat (SSR). The four primer SSR is primer RM 20, RM 580, RM 413 and RM 131 used to this ... -
Analisis Logam Berat (Pb dan Cd) yang Terakumulasi pada Eceng Gondok (Eichornia Crassipes Solms.) di Sungai Asahan, Kabupaten Toba Samosir
(Universitas Sumatera Utara, 2014)The research on analysis ofhavy metals (Pb and Cd) accumulated in the water Hyacinth (Eichornia crassipesSolms.) in the Asahan river, Subdistrict Toba Samosir has done in June 2013. Sampling was done by purposive random ... -
Potensi Bakteri Asam Laktat yang Diisolasi dari Nira Aren dalam Menghambat Pertumbuhan Bakteri Patogen Asal Pangan
(Universitas Sumatera Utara, 2017)Nira contain sugar and other nutritional components that are good for the growth of microorganisms, one of which lactic acid bacteria. The purpose of this study was to obtain lactic acid bacteria isolates potential of ... -
Aktivitas Antimikroba Ekstrak Etanol Batang dan Daun Evodia (Euodia ridleyi Horch.) terhadap Pertumbuhan Streptococcus mutans, Shigella dysenteriae dan Candida albicans secara in Vitro
(Universitas Sumatera Utara, 2013)In vitro antimicrobial activity of ethanol stems and leaves extract of Evodia (Euodia ridleyi Horch.) has been conducted. The purpose is to study component of secondary metabolites stems and leaves extract of Euodia ... -
Keragaman Makroalga di Pesisir Pantai Kecamatan Lahewa, Kabupaten Nias Utara
(Universitas Sumatera Utara, 2017)The present study describe The diversity of macroalgae along the beach of Lahewa, the regency of North Nias to observe the diversity of macroalgae species and its correlation with marine physical-chemical factors. The ... -
Pengaruh Lama Penyinaran Sinar Ultraviolet C (UV-C) sebagai Elisitor untuk Meningkatkan Produksi Katekin melalui Kultur Kalus Pucuk Daun Teh (Camellia sinensis L.)
(Universitas Sumatera Utara, 2014)The study about effect of long-rays Ultraviolet (UV) C as elicitor to increase production of catechins through callus culture leaf tea (Camellia sinensis L.) has been carried out. Method used was a completely randomized ... -
Keanekaragaman Makrozoobentos di Sungai Bah Binoman Desa Marjandi Embong Kecamatan Panombeian Panei Kabupaten Simalungun
(Universitas Sumatera Utara, 2016)Macrozoobentos Diversity in Bah Binoman River, Marjandi Embong Village, District of Panombeian Panei, Simalungun Regency has been observed in April 2016. Determination of the research station using “Purposive Sampling ... -
Keanekaragaman Burung Pantai dan Potensi Makanan di Kawasan Pantai Baru Kecamatan Pantai Labu Deli Serdang Sumatera Utara
(Universitas Sumatera Utara, 2014)Research about biodiversity of shoredbirds and potential of the food had been conducted for February to November 2013. The research was aimed to know biodiversity of shoredbirds and potenstial of food. Pantai Baru is ... -
Komposisi dan Keanekaragaman Tumbuhan Bawah pada Tanah Gambut dan Tanah Mineral di Perkebunan Kelapa Sawit PT. Supra Matra Abadi (SMA) Kecamatan Kampung Rakyat Kabupaten Labuhan Batu Selatan
(Universitas Sumatera Utara, 2016)Research on the composition of the ground cover on peat soil and mineral soil in oil palm PT. Supra Matra Abadi Labuhan Batu Selatan Regency, North Sumatera had been conducted in January 2016 until March 2016. The ... -
Inventarisasi Tumbuhan Paku di Kawasan Hutan Gunung Sinabung Jalur Pendakian Sigarang- Garang Kabupaten Karo Sumatera Utara
(Universitas Sumatera Utara, 2014)The experiment was conducted using the "Survey Method" to determine species of ferns in Sinabung Mount Forest climbing lane of Sigarang-garang, Suites of Karo, North Sumatra. Found 32 species of ferns are included in 2 ... -
Keanekaragaman Ikan di Bagian Hulu Sungai Horas, Kecamatan Hatonduhan, Kabupaten Simalungun, Sumatera Utara
(Universitas Sumatera Utara, 2016)The study on the diversity of fish has been conducted at Horas river, district Hatonduhan, Simalungun regency during March 2016. Purposive sampling method was used to determine three stasions of the research based on ... -
Keanekaragaman Ikan dan Hubungannya dengan Kualitas Air di Perairan Sungai Bingei, Binjai
(Universitas Sumatera Utara, 2015)The relationship of water quality to the fish diversity in Bingei river, Binjai has been observed in Januari 2015. Determination of the research station by using “Purposive Sampling Methode”. Seven genera of fishes, ...