Browsing Master Theses by Issue Date
Now showing items 1-20 of 266
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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 ... -
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. ... -
Aktivitas Antioksidan dan Antimikrob dari Estrak Etanol Daun Gagatan Harimau (Paraboea leuserensis B.L.Burtt) terhadap Staphylococcus aureus, Escherichia coli dan Candida albicans
(Universitas Sumatera Utara, 2025)Antioxidant and antimicrobial research of ethanol extract of Gagatan Harimau leaves (Paraboea leuserensis B.L.Burtt) against staphylococcus aureus, Escherichia coli and Candida albicans was conducted in January-April ... -
Kajian Pemberian Limbah Cair Pabrik Kelapa Sawit pada Areal Tanaman Buah Naga terhadap Keanekaragaman Makrofauna Tanah
(Universitas Sumatera Utara, 2025)The application of palm oil mill effluent (POME) on dragon fruit plant areas as fertilizer with variations in the application time will affect the presence and diversity of soil macrofauna, which in turn can reflect the ... -
Kemampuan Bakteri Endofit Tumbuhan Mangrove Avicennia marina dalam Menghambat Serangan Penyakit Layu Fusarium pada Tanaman Cabai
(Universitas Sumatera Utara, 2025)Mangroves are known to have special abilities to adapt and grow in extreme environmental conditions. Mangroves have been reported to harbor endophytic bacteria that have potential as biological control agents. Additionally, ... -
Keragaman Tanaman Cabai Merah (Capsicum Annuum L.) yang Diinduksi Etil Metana Sulfonat (EMS) Berdasarkan Karakter Morfologi, Molekuler, dan Kandungan Capsaicin
(Universitas Sumatera Utara, 2025)The red chili peppers (Capsicum annuum L.) are horticultural plants containing capsaicin as their primary bioactive compound. The low adaptability of red chili peppers is feared to cause limited genetic diversity. Efforts ... -
Keanekaragaman Jenis Burung Air dan Analisis Jenis Makrozoobentos sebagai Sumber Makanan Burung di Kawasan Ekowisata Mangrove Sicanang, Belawan
(Universitas Sumatera Utara, 2025)Sicanang Mangrove Ecotourism is a habitat for waterbird so the area is designated as an important bird area (IBA). Conditions in the Sicanang Mangrove Ecotourism Area have experienced many anthropogenic disturbances due ... -
Studi Etnobotani dan Skrining Fitokimia Tumbuhan Obat untuk Sistem Peredaran Darah pada Masyarakat Kecamatan Tamiang, Hulu Aceh Tamiang
(Univesitas Sumatera Utara, 2025)The use of traditional medicinal plants plays an important role in maintaining public health, particularly in the treatment of circulatory system diseases, which remain a major health concern. This study aims to document ... -
Keberadaan Serangga dan Peranannya Pada Lahan Pertanian Padi (Oryza sativa L.) di Kecamatan Medang Deras Kabupaten Batu Bara Sumatera Utara
(Universitas Sumatera Utara, 2025)The presence of insects is greatly influenced by the growth period of rice plants (Oryza sativa L.). During its growth period, it often experiences insect disturbances, including pests, pollinators and predators. The study ... -
Potensi Bacillus thuringiensis dari Tanah Kebun Kelapa Sawit di Kabupaten Batubara sebagai Agen Pengendalian Larva Nyamuk
(Universitas Sumatera Utara, 2025)The increasing resistance of Aedes aegypti and Culex sp. mosquitoes to chemical insecticides necessitates the search for environmentally friendly alternatives. This study evaluated the toxicological potential of Bacillus ... -
Kekayaan Jenis Liken di Taman Wisata Alam Sicike-Cike Kabupaten Dairi dan Potensinya Sebagai Sumber Antioksidan
(Universitas Sumatera Utara, 2025)Research on lichens in North Sumatra is still limited; in fact, lichens have potential that can be utilized in the fields of health and pharmaceuticals. This study aims to identify liken species found in the Sicike-cike ... -
Analisis Efek Antiinflamasi Nanoherbal Daun Söfö- Söfö (Adenostemma lavenia) dalam Mengatasi Sepsis Paru- Paru Melalui Studi In Silico
(Universitas Sumatera Utara, 2025)Pulmonary sepsis is a severe systemic inflammatory condition with potentially fatal outcomes, necessitating an effective therapeutic approach. This study aimed to evaluate the anti-inflammatory potential of the nanoherbal ... -
Jenis-Jenis Sphagnum spp. di Taman Wisata Alam Sicike-cike Kabupaten Dairi dan Skrining Fitokimia serta Potensinya sebagai Sumber Antioksidan
(Universitas Sumatera Utara, 2025)Research on Sphagnum mosses in Indonesia, particularly in Sumatra, still limited. Therefore, this study was conducted to analyze species diversity, distribution, and to analyze the phytochemical properties and antioxidant ... -
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 ... -
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 ... -
Fluktuasi Harian Kelimpahan Plankton di Perairan Percut Sei Tuan, Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2024)Plankton is an aquatic biota that lives following currents in the waters. Plankton life is very dependent on the quality of water in these waters. Physical and chemical conditions of water that are always changing cause ... -
Kajian Populasi Ikan Kedukang (Hexanematichthys sagor) di Perairan Sungai Percut Kecamatan Percut Sei Tuan, Kabupaten Deli Serdang, Sumatera Utara
(Universitas Sumatera Utara, 2024)Kedukang fish (Hexanematichthys sagor) is one type of consumable fish that is widely caught by fishermen and the community. Catching kedukang fish in the Percut River, Deli Serdang Regency is carried out every day without ... -
Uji Efektifitas Buah Berenuk (Crescentia cujete) dan Bunga Cengkeh (Syzygium aromaticum) sebagai Bioinsektisida terhadap Mortalitas Ulat Grayak (Spodoptera frugiperda) dan Tingkat Kerusakan Tanaman Sawi
(Universitas Sumatera Utara, 2024)Fall armyworm (Spodoptera frugiperda) poses a significant threat to important crops in Indonesia, leading to productivity losses and economic impacts. Botanical insecticides have garnered attention in crop cultivation due ... -
Keanekaragaman Serangga Hama pada Tanaman Jagung di UPT Benih Induk Palawija dan Hortikultura Tanjung Selamat Kabupaten Deli Serdang (Studi Kasus)
(Universitas Sumatera Utara, 2024)Corn is a potential crop to be developed, and during its growth period it is often disturbed by insect pests. The level of attack and diversity of insect pests is influenced by the age of the corn plants and air temperature. ... -
Kajian Etnoprimatologi Orang Utan Tapanuli (Pongo tapanuliensis) Berdasarkan Persepsi Masyarakat Adat di Ekosistem Batang Toru, Sumatera Utara
(Universitas Sumatera Utara, 2024)The ethnoprimatology study of the Tapanuli orangutan (Pongo tapanuliensis) aims to analyze the cultural aspects related to Tapanuli orangutans based on the perceptions of indigenous people in the Batang Toru ecosystem, ...