Department of Biology: Recent submissions
Now showing items 21-40 of 1174
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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 ... -
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, ... -
Jenis-Jenis Liken di Stasiun Restorasi Tenggulun, Kawasan Ekosistem Leuser (KEL), Kabupaten Aceh Tamiang
(Universitas Sumatera Utara, 2024)Research on liken at the Tenggulun Restoration Station has not been carried out until now. This study aimed to identify the types of liken, analyze secondary metabolite content, and test liken antioxidants on types that ... -
Analisis Mikroplastik pada Ikan Hasil Tangkapan di Sungai Belawan Sumatera Utara
(Universitas Sumatera Utara, 2024)Plastic waste pollution has spread to waters and is currently a serious problem. Plastic in the water will be degraded into microplastics (particle <0.1-5 mm). Research on analysis of microplastics in fish caught in the ... -
Efektifitas Serbuk Daun Sirih Hijau (Piper betle L.) dan Biji Mahoni (Swietenia mahagoni L. Jacq) sebagai Biopestisida Nabati terhadap Mortalitas Kutu Beras (Sitophilus oryzae L.)
(Universitas Sumatera Utara, 2024)Rice has become an important issue, closely tied to inadequate post-harvest handling and storage. Effective post-harvest management is crucial in reducing damage caused by pests, especially Sitophilus oryzae L., which can ... -
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. ... -
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 ... -
Isolasi Fragmen Gen pib sebagai Gen Ketahanan terhadap Penyakit Blas pada Padi Sigudang (Oryza sativa L.) dari Kabupaten Mandailing Natal
(Universitas Sumatera Utara, 2024)The main disease that assaults rice plants is blast disease, it is caused by the fungus Pyricularia oryzae Cav. Harvest failure due to blast disease occurs in almost of all rice production centre in Indonesia and it results ... -
Hubungan Logam Berat Besi (Fe) dan Tembaga (Cu) terhadap Keanekaragaman Makrozoobenthos di Sungai Belawan
(Universitas Sumatera Utara, 2024)The study concerns of the relationship between heavy metals iron (Fe) and copper (Cu) to the diversity of macrozoobenthos in Belawan River. This research aimed to analyze the content of heavy metals iron and copper in the ... -
Pengaruh Penambahan Benzil Amino Purin (Bap) dan Indole Butyric Acid (Iba) Terhadap Kultur Nodus Bambu Nicaragua (Guadua Angustifolia Kunth.)
(Universitas Sumatera Utara, 2024)Research on the Effect of Benzyl Amino Purine (BAP) and Indole Butyric Acid (IBA) on Nicaraguan Bamboo Node Culture (G. angustifolia Kunth.) was carried out at the G10 Agrotech Laboratory, Jl. Sei Bahorok, District. Medan ...