Browsing Department of Biology by Submit Date
Now showing items 1-20 of 1294
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Studi Produksi L-asparaginase dari Actinomycetes Isolat Lokal Sumatera Utara: Seleksi dan Optimasi
(Universitas Sumatera Utara, 2026)Actinomycetes are Gram-positive filamentous bacteria known for producing a wide range of bioactive compounds, including the enzyme L-asparaginase, which has potential applications in healthcare and industrial biotechnology. ... -
Potensi Jamur dari Air Lindi TPA Namo Bintang Deli Serdang Sumatera Utara dalam Menyerap Kadmium (Cd) dan Seng (Zn)
(Universitas Sumatera Utara, 2025)Heavy metals are naturally occurring elements in the environment and cannot be biodegraded, but they can accumulate in living organisms, including fungi. This study aims to determine the potential of fungi isolated from ... -
Isolasi dan Seleksi Mikroorganisme Penghasil Enzim L-Asparaginase dari Tempe
(Universitas Sumatera Utara, 2026)Tempeh is a soybean-based fermented product rich in amino acids and beneficial microorganisms, including L-asparaginase–producing species. The aim of this study was to obtain L-asparaginase-producing bacteria and fungi ... -
Potensi Jamur Pendegradasi Solar dari Kawasan Mangrove Belawan, Sumatera Utara
(Universitas Sumatera Utara, 2025)Oil spills at sea has a serious problem, it can cause significant damage to coastal environments and living creatures. This study aims to determine the diversity of fungi isolated from water and soil of mangrove area and ... -
Karakterisasi Enzim Karbofuran Hidrolase dari Bacillus Cereus Strain HS06 dan Bacillus Paramycoides Strain BSAS15
(Universitas Sumatera Utara, 2026)Bacillus cereus strain HS06 and Bacillus paramycoides strain BSAS15 are two bacteria known to have the ability to degrade carbofuran, an active compound used in pesticides which are very dangerous to the environment. This ... -
Analisis Ekspresi Protein Apoptosis pada Tikus (Rattus norvegicus) Hiperglikemia dengan Pemberian Ekstrak Etanol Bawang Batak (Allium Chinense G. Don)
(Universitas Sumatera Utara, 2026)Diabetes mellitus (DM) is a metabolic disorder characterized by chronic hyperglycemia resulting from inadequate insulin secretion and/or insulin resistance. It is currently crucial to explore new therapeutic approaches for ... -
Deteksi Gen CehA Pengkode Enzim Karbofuran Hidrolase pada Bacillus cereus Strain HS06
(Universitas Sumatera Utara, 2026)The cehA gene is one of the genes encoding the carbofuran hydrolase (KH) enzyme, which plays a role in the biodegradation of the insecticide carbofuran. This study aimed to detect the presence of the cehA gene in Bacillus ... -
Keragaman dan Potensi Selulolitik Bakteri dan Jamur dari Saluran Pencernaan Oryctes rhinoceros L.
(Universitas Sumatera Utara, 2026)The gut of insects is the natural habitat of various microbes that have the ability to degrade cellulose, which is the main component of plant walls. Oryctes rhinoceros L., is one of the pests in oil palm and is thought ... -
Potensi Khamir Endofit Daging Buah Nanas Madu (Ananas Comosus) Sebagai Penghasil Asam Indol Asetat (IAA) dan Pelarut Fosfat
(Universitas Sumatera Utara, 2026)This study aims to obtain endophytic yeasts isolated from pineapple (Ananas comosus) fruit flesh and to evaluate their potential for indole acetic acid (IAA) production and phosphate solubilization. The yeasts were ... -
Uji Aktivitas Antimikroba Ekstrak Daun Bangun-bangun (Coleus Amboinicus L.) terhadap Beberapa Isolat Mikroba Patogen Klinis
(Universitas Sumatera Utara, 2026)Coleus amboinicus Lour., commonly known in North Sumatra as “daun bangun-bangun,” is an aromatic plant from the Lamiaceae family traditionally used as an anti-infective, anti-inflammatory, and wound-healing agent. Its ... -
Keanekaragaman Makrozoobenthos di Sungai Tanjung Pura, Kabupaten Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2026)The Tanjung Pura River, Langkat Regency, North Sumatra, is an aquatic ecosystem experiencing anthropogenic pressure from livestock farming activities, former sand dredging, and domestic waste. This study aims to analyze ... -
Isolasi dan Uji Aktivitas Antijamur Ekstrak Etanol dan N-Heksan Tanaman Ciplukan (Physalis Angulata L.) terhadap Jamur Patogen Klinis
(Universitas Sumatera Utara, 2026)Ciplukan (Physalis angulata L.) is a medicinal plant that contains secondary metabolites with potential as an alternative to synthetic antibiotics for antifungal therapy. This study aimed to determine the phytochemical ... -
Kepadatan Tikus dan Ektoparasitnya di Pemukiman Padat Penduduk di Kelurahan Mesjid, Kecamatan Medan Kota, Kota Medan, Sumatera Utara
(Universitas Sumatera Utara, 2026)This study was conducted to determine the types of rats and their ectoparasites, the relative density (trap success) of rats, the specific flea index (SFI), the prevalence, and the intensity of ectoparasite infestation ... -
Uji Ekstrak Etanol Biji Pepaya (Carica papaya L.) terhadap Daya Tetas dan Perkembangbiakan Larva Aedes aegypti
(Universitas Sumatera Utara, 2025)Dengue Hemorrhagic Fever (DHF), transmitted by Aedes aegypti, remains a major public health problem in Indonesia. This study aimed to determine the effect of papaya seed extract (Carica papaya L.) on egg hatching rate ... -
Analisis Logam Berat Timbal (Pb) pada Daging Kerang Lentera (Lingula unguis) di Desa Jaring Halus, Secanggang, Langkat
(Universitas Sumatera Utara, 2025)This study aims to analyze lead (Pb) concentrations in the meat of Lingula unguis and to compare them with Pb levels in seawater and sediment in the coastal area of Jaring Halus Beach, Secanggang District, Langkat Regency. ... -
Hubungan Keberadaan Sarang Orangutan Tapanuli (Pongo tapanuliensis) Dengan Kerentanan Tanaman Budidaya Pada Area Konflik Manusia-Orangutan
(Universitas Sumatera Utara, 2025)The habitat of the Tapanuli orangutan (Pongo tapanuliensis) is limited to the Batang Toru Landscape. The Tapanuli orangutan is threatened with habitat loss due to land-use changes, forcing the orangutans to enter and forage ... -
Isolasi dan Sekuensing Fragmen cDNA Gen pi-ta sebagai Ketahanan terhadap Penyakit Blas pada Padi (Oryza sativa L.) Sigudang dari Sumatera Utara
(Universitas Sumatera Utara, 2026)Blast disease caused by Pyricularia oryzae is one of the main threats to rice production in Indonesia. Several local rice varieties in North Sumatra, including the Sigudang cultivar, showed resistant to blast disease. ... -
Isolasi dan Sekuensing Fragmen cDNA Gen pi-d2 sebagai Ketahanan terhadap Penyakit Blas pada Padi Sigudang (Oryza sativa L.) dari Sumatera Utara
(Universitas Sumatera Utara, 2026)Rice blast disease caused by the fungus Pyricularia oryzae is one of the major threats to rice production. Several resistant genes have been identified to confer resistance against blast disease, including the pi-d2 gene. ... -
Aktivitas Berang-Berang Cakar Kecil (Aonyx cinereus) di Kebun Binatang Rahmat Zoo and Park, Desa Bengabing, Pegajahan, Sumatera Utara
(Universitas Sumatera Utara, 2026)This study aims to examine the activity patterns of small-clawed otters (Aonyx cinereus) maintained at Rahmat Zoo and Park, Bengabing Village, Pegajahan, North Sumatra. From a biological perspective, the study of daily ... -
Aktivitas Walabi Lincah (Macropus agilis papuanus) di Kebun Binatang Rahmat Zoo and Park, Desa Bengabing, Pegajahan, Sumatera Utara
(Universitas Sumatera Utara, 2025)This study aims to analyze the ex situ husbandry system and daily activity patterns of agile wallabies (Macropus agilis papuanus) at Rahmat Zoo and Park, Bengabing Village, Pegajahan, North Sumatra. Observations were ...