Browsing Undergraduate Theses by Submit Date
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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 ... -
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 ... -
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 ... -
Studi Efektivitas Polinasi Jambu Air (Syzygium aqueum) Oleh Lebah Klanceng (Trigona spp.) Di Kebun Agrowisata Medan Istana Jambu, Sidirejo, Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2025)The use of Trigona sp. as a pollinator is one of the meliponiculture techniques to increase plant pollination. Klanceng bees (Trigona sp.) are a type of stingless bee that has an important role as a plant pollinator. ... -
Efek Ekstrak Etanol Biji Pinang (Areca Catechu L.) terhadap Kadar Gula Darah dan Histologi Pankreas pada Tikus (Rattus Norvegicus L.) Jantan yang Diinduksi Aloksan
(Universitas Sumatera Utara, 2025)Areca catechu seeds (Areca catechu L.) is a herbal plant that contains secondary metabolite compounds such as flavonoids, alkaloids, saponins, and tannins, which have hypoglycemic properties. Flavonoids, as antioxidants, ... -
Pengaruh Aktivitas Harian Lebah Klanceng (Trigona Spp.) Terhadap Polinasi Dan Durasi Pembuahan Tanaman Anggur (Vitis Vinifera L.) Di Desa Sidodadi Ramunia, Kecamatan Beringin
(Universitas Sumatera Utara, 2025)Grapevine (Vitis vinifera L.) has been a high-value commodity whose growth has been influenced by the environmental factors and the presence of pollinators, such as stingless bees (Trigona spp.), which have potential as ... -
Potensi Bakteri Tanah Kawasan Terminal dalam Mendegradasi Oli Bekas
(Universitas Sumatera Utara, 2025)Environmental pollution caused by used oil is a serious problem due to its toxic hydrocarbon content, which is difficult to break down naturally. This study aims to examine the potential of bacteria isolated from the ... -
Potensi Jamur Endofit Penghasil Enzim Lakase dari Daun Kelapa Sawit (Elaeis guineensis Jacq.)
(Universitas Sumatera Utara, 2025)Oil palm leaves as habitat for various endophytic fungi that have the potential to produce hydrolytic enzymes, including lignin-degrading laccase enzymes. This study aimed to determine the potential of endophytic fungi ... -
Korelasi Indeks Shannon-Wiener Tumbuhan Pakan dengan Encounter Rate Burung Merbah Cerucuk (Pycnonotus goiavier) di Area Kampus Universitas Sumatera Utara
(Universitas Sumatera Utara, 2025)The Yellow-vented Bulbul (Pycnonotus goiavier) is a bird that feed fruit (frugivorous) and nectar (nectarivorous). The presence of the bird depends on the availability of the plants in its habitat. The diversity of ...