Department of Biology: Recent submissions
Now showing items 41-60 of 1203
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Potensi Khamir Endofit Buah Markisa (Passiflora Edulis) dan Asam Organik yang Dihasilkan dalam Menghambat Aspergillus Flavus Toksigen
(Universitas Sumatera Utara, 2024)Passion fruit endophytic yeasts live mutualistically in plant tissues without harming the host plant. This study aims to enumerate the population of passion fruit endophytic yeasts and their ability to produce organic acids ... -
Pengaruh Pemberian Trichoderma Harzianum dan Bakteri Penstimulan Pertumbuhan pada Tanaman Tomat (Solanum Lycopersicum L.) Terinfeksi Meloidogyne Hapla
(Universitas Sumatera Utara, 2024)Pathogenic infections caused by root knot nematodes (Meloidogyne hapla) are one of the obstacles in tomato cultivation. Therefore, a biocontrol agent in the form of a nematophagus fungus is needed and the combination of ... -
Potensi Khamir Endofit Buah Markisa (Passiflora Edulis) Penghasil Asam Indol Asetat Dan Pelarut Fosfat
(Universitas Sumatera Utara, 2024)Endophytic yeast is a unicellular fungus whose their life cycle in tissues such as intercellular spaces of plants and does not cause damage to its host. Their ability in secreting of phytohormone and dissolving of phospates ... -
Studi Etnoprimatologi Kukang (Nycticebus Coucang) di Desa Kuta Male Kecamatan Kutambaru Kabupaten Karo Sumatera Utara
(Universitas Sumatera Utara, 2025)The misuse of slow lorises, such as their use as mystical tools or as pets, is particularly prevalent in Kuta Male Village, Karo Regency, North Sumatra. Therefore, it is necessary to conduct research regarding the perspectives ... -
Pengaruh Faktor Fisik Lingkungan terhadap Aktivitas Harian Trigona spp. Selama Musim Penghujan di Taman FMIPA Universitas Sumatera Utara
(Universitas Sumatera Utara, 2024)Bee Trigona spp. is a type of honey producing bee that does not have a sting (stingless bee). This research aims to analyze bee activity Trigona spp. in the FMIPA park during the rainy season and potential food sources ... -
Identifikasi Mikroplastik pada Sistem Pencernaan Burung Kuntul Kecil (Egretta garzetta) di Desa Tanjung Rejo Kecamatan Percut Sei Tuan
(Universitas Sumatera Utara, 2024)Microplastics originate from the degradation of plastic waste with a size of <5 mm. The presence of microplastics in water can inadvertently be ingested by organisms foraging on the surrounding water areas, such as water ... -
Aktivitas Antagonis Hendersonia sp. dan Aspergillus sp. dalam Menghambat Pertumbuhan Ganoderma boninense pada Kelapa Sawit (Elaeis guineensis)
(Universitas Sumatera Utara, 2024)Ganoderma disease is very important to be handled seriously. There are many efforts have been made to quell ganoderma disease, including utilization of biological control agents that are antagonistic to Ganoderma boninense ... -
Gambaran Histologi Kulit Mencit (Mus Musculus L.) Jantan yang Diobati Salep Propolis Lebah (Trigona Spp.) Setelah Diinduksi Luka Bakar
(Universitas Sumatera Utara, 2024)Propolis contains of secondary metabolite compounds such as flavonoids, tannins and saponins that act as anti-inflammatory, antimicrobial, antiviral, antibacterial and play a role of accelerating the wound healing process. ... -
Hubungan Umur dengan Berat Feses Gajah Sumatera (Elephas Maximus Sumatranus) di Kawasan Taman Nasional Gunung Leuser Resort Tangkahan, Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2025)This research aims to explain the relationship between age and feces weight of Sumatran elephants (Elephas maximus sumatranus) in the Gunung Leuser National Park Tangkahan (GLNP) Resort, Langkat, North Sumatra. ... -
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 ... -
Skrining Fitokimia dan Uji Aktivitas Antimikroba Ekstrak Metanol Akar Sidaguri (Sida rhombifolia) terhadap Beberapa Bakteri dan Jamur Patogen Manusia
(Universitas Sumatera Utara, 2025)Infections caused by pathogenic microorganisms are generally treated with antibiotics; however, inappropriate of antibiotics use can lead to resistance, in turn other antimicrobial agents need to be develope. Many antimicrobial ... -
Optimalisasi Ekstrak Daun Sirih Cina (Peperomia Pellucida L.) Terhadap Histologi Paru-Paru Mencit (Mus Musculus L.) Yang Dipapar Asap Rokok
(Universitas Sumatera Utara, 2025)Cigarette smoke contains various harmful substances, including free radicals that smoke can lead to oxidative stress, damaging lung cells, increasing the risk of inflammation, and impairing of the lung function. The use ... -
Pola Pertumbuhan dan Faktor Kondisi Ikan Iblis Merah (Amphilopus labiatus) di Perairan Danau Toba Sumatera Utara
(Universitas Sumatera Utara, 2025)The red devil fish (Amphilophus labiatus) is a type of predatory fish that also invasive. It is posing a threat to the endemic fish and other economically important fish species in a body of water. The presence of the red ... -
Potensi Jamur Nematofagus (Paecilomyces fumosoroseus) dan Bakteri Penambat Nitrogen (Azotobacter sp.) Dalam Mengurangi Infeksi Meloidogyne hapla Pada Tanaman Tomat (Solanum lycopersicum L.)
(Universitas Sumatera Utara, 2025)Tomato plants (Solanum lycopersicum L.) are horticultural crop that often suffer yield losses due to the root-knot nematode attacks. This study aims to determine the ability of nematophagous fungi (Paecilomyces fumosoroseus) ... -
Potensi Bakteri Penghasil Biosurfaktan Dari Limbah Cair Industri Kelapa Sawit Dalam Mendegradasi Minyak Goreng Bekas
(Universitas Sumatera Utara, 2025)The increasing need for cooking oil as a food ingredient has resulted in an increase in the amount of used cooking oil produced, causing pollution which has negative effects on health and the environment. This research ... -
Potensi Jamur dari Limbah Detergen dalam Mendegradasi Linear Alkylbenzene Sulfonate
(Universitas Sumatera Utara, 2025)Contamination of detergent containing linear alkylbenzene sulfonate (LAS) waste could occur due to the absence of a standard system regarding waste management, especially from laundry businesses. This research aims to ... -
Analisis Apoptosis Jalur Ekstrinsik pada Karsinoma Sel Skuamosa Rongga Mulut Tikus (Rattus norvegicus) dengan Pemberian Nanoherbal Sikkam (Bischofia javanica) dan Mahkota Dewa (Phaleria macrocarpa)
(Universitas Sumatera Utara, 2024)Oral squamous cell carcinoma (OSCC) is a common type of cancer in the head and neck region, particularly prevalent in Southeast Asia due to the consumption of tobacco with betel and areca nuts. In tobacco, Benzo(alpha)pyrene ... -
Potensi Ekstrak Etanol Jamur Susu Harimau (Lignosus rhinocerus (Cooke) Ryvarden) sebagai Antimikrob dan Antiaflatoksin Galur-Galur Aspergillus flavus
(Universitas Sumatera Utara, 2024)Tiger milk mushroom (Lignosus rhinocerus (Cooke) Ryvarden) is known for its various health benefits. This study aims to evaluate the potential of ethanol extract from tiger milk mushroom as an antimicrobial and antiaflatoxin ... -
Pencemaran Mikroplastik dan Akumulasi pada Ikan Baung (Hemibagrus nemurus) di Sungai Siak Kota Pekanbaru
(Universitas Sumatera Utara, 2024)The production of plastics in this era has resulted in a diversity of plastics with various properties, types of polymers, and colors, tailored to the usage of the plastic. The increase in plastic production is accompanied ... -
Eksplorasi Mangrove dan Bioakumulasi Timbal (Pb) pada Tiga Jenis Tumbuhan Mangrove Edible di Kawasan Belawan Pulau Sicanang
(Universitas Sumatera Utara, 2024)Lead (Pb) is one type of heavy metal that can interfere with human health. Mangrove vegetation has the ability to accumulate heavy metals, among other Pb found in the environment. Sicanang Island is an area surrounded by ...