Department of Biology: Recent submissions
Now showing items 41-60 of 1174
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Jenis-Jenis Lumut Sejati (Bryophyta) di Kawasan Taman Hutan Raya Bukit Barisan Desa Bandar Baru Kecamatan Sibolangit Sumatera Utara
(Universitas Sumatera Utara, 2024)Bukit Barisan Forest Park located at Bandar Baru Village Sibolangit District, Deli Serdang Regency, North Sumatera is one the forest area which has high diversity. It is a forest area that hasvaried topographic and ecological ... -
Gambaran Histologi Ginjal Tikus (Rattus Norvegicus L.) Jantan yang Diberi Ekstrak Etanol Daun Sambung Nyawa (Gynura Procumbens (Lour.)Merr.) pada Tikus Model Diabetes
(Universitas Sumatera Utara, 2024)Sambung nyawa leaves contain various secondary metabolite compounds such as flavonoids, triterpenoids, polyferols, saponins, steroids, chlorogenic acid, caffeic acid, vanillac acid, coumaric acid, and para hydroxy benzoate ... -
Efektivitas Nanoherbal Daun Haramonting (Rhodomyrtus Tomentosa (Aiton) Hassk) Terhadap Histologi Jantung Tikus Putih (Rattus Norvegicus L.) yang Dipaparkan Allethrin
(Universitas Sumatera Utara, 2024)The use of electric mosquito repellent is a type that is in great demand by Indonesian people because it does not produce smoke, is long-lasting, smells good and is easy to use. However, without realizing it, electric ... -
Pengaruh Pemberian Nanoherbal Biwa (Eriobotrya Japonica Lindl.) terhadap Disfungsi Jantung Tikus (Rattus Norvegicus L.) yang Diinduksi Doxorubicin
(Universitas Sumatera Utara, 2024)Biwa leaves (Eriobotrya japonica Lindl.) contain compounds that have potential as antioxidants. Research on the effect of administering nanoherbal biwa (Eriobotrya japonica Lindl.) on cardiac dysfunction of doxorubicin-induced ... -
Ekstrak Kulit Durian (Durio Zibethinus Murr.) sebagai Renoprotector pada Tikus (Rattus Norvegicus) yang di Induksi 7,12-Dimetilbenz-[Α] Antrasena (DMBA) Ekstrak
(Universitas Sumatera Utara, 2024)Durian fruit peel extract (Durio zibethinus Murr.) contains bioactive compound terpenoids, flavonoids, phenols and alkaloids. These bioactive compounds can be chemopreventive agents to prevent cancer development, to ... -
Kadar Klorofil dan Stomata Daun Glodokan Tiang (Polyalthia Longifolia) di Beberapa Lokasi Sumatera Utara Terpapar oleh Timbal (Pb)
(Universitas Sumatera Utara, 2024)The research of the chlorophyll and stomata levels on Ashoka Tree (Polyalthia longifolia) from several locations at Sumatera Utara exposed to lead (Pb), was conducted since January until June 2023 at Laboratorium Fisiologi ... -
Respon Pertumbuhan Jagung Manis (Zea Mays L.) Akibat Pemberian Pupuk Organik Cair (Poc) Kulit Buah Durian (Durio Zibethinus Murr.)
(Universitas Sumatera Utara, 2024)This study aims to determine the response of sweet corn (Zea mays L.) plants to the application of durian peel liquid organic fertilizer (POC) and determine the best concentration of durian peel liquid organic fertilizer ... -
Isolasi Fragmen Gen pup1 sebagai Gen Ketahanan terhadap Penyakit Blas pada Padi Sigudang (Oryza Sativa L.) dari Kabupaten Mandailing Natal
(Universitas Sumatera Utara, 2024)One of the common diseases that attack rice plants in Indonesia is blast disease. It is caused by the fungus Pyricularia oryzae. The characteristic of this disease is characterized by the presence of necrotic, so because ... -
Deteksi Molekuler White Spot Syndrome Virus (WSSV) pada Komoditas Kepiting Bakau (Scylla sp.) Menggunakan Nested Pcr di Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2024)White Spot Syndrome Virus (WSSV) is a DNA virus classified into Nimaviridae family and the only type of the genus Whispovirus. WSSV causes white spot disease and also causes mortality in shrimp. WSSV is not only found in ... -
Seleksi Jamur Endofit Penghasil Lipase dari Daun Kelapa Sawit (Elaeis Guineensis Jacq.)
(Universitas Sumatera Utara, 2024)The utilization of endophytic fungi as microorganisms producing extracellular enzymes such as lipase is currently being developed in line with increasing enzyme needs, especially in the industrial field. This research aims ... -
Resistensi Bakteri Gram Negatif Asal Feses Orang Utan Sumatra (Pongo Abelii) di Sumatran Rescue Alliance (SRA) terhadap Beberapa Antibiotik
(Universitas Sumatera Utara, 2024)Treating diarrhea in Sumatran orangutans at the Sumatran Rescue Alliance (SRA) using antibiotics can sometimes cause resistance problems which result in ineffective treatment. This study aims to determine the resistance ... -
Pemanfaatan Biosaka terhadap Produktivitas dan Kadar Likopen Tomat Ceri (Solanum Lycopersicum L. Var. Cerasiforme)
(Universitas Sumatera Utara, 2024)Lycopene has the highest antioxidant activity found in cherry tomatoes, It is around 60 to 64%. Continuous usage of the chemical fertilizers can damage the soil and disrupt the balance of the nutrients that decrease the ... -
Potensi Jamur Endofit dari Akar Kelapa Sawit (Elaeis Guineensis) dalam Menghasilkan Lipase
(Universitas Sumatera Utara, 2024)Oil palm is a rich source of endophytic fungi, whose potential as producer hydrolytic enzymes such as lipase, beneficial in industrial application and waste processing, has not been extensively studied. This research aimed ... -
Identifikasi Molekuler Sumber Darah pada Nyamuk Anopheles Maculatus Complex dan Aedes Albopictus di Desa Ujung Bandar Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2024)Malaria and Dengue Fever still remain health polemic in Indonesia. Based on data from Kementrian Kesehatan, cases of Malaria and Dengue Fever in North Sumatera, especially at Langkat Regency are still high and stable. ... -
Identifikasi Molekuler Vektor Malaria Anopheles Maculatus Complex di Desa Ujung Bandar, Kabupaten Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2024)Malaria in Indonesia remains a contagious disease with a high number of cases each year. Limitations in identifying malaria vectors can hinder vector control activities. The diversity of biological characteristics, such ... -
Populasi Khamir Endofit Buah Sirsak (Annona Muricata L.) serta Kemampuannya Menghasilkan Asam Indol Asetat dan Melarutkan Fosfat
(Universitas Sumatera Utara, 2024)Soursop contains high diversity of endophytic yeasts. This study aims to isolate and identify endophytic yeast of soursop fruit and their potential to produce indole acetic acid and dissolve phosphate. Endophytic yeasts ... -
Status Kerentanan Nyamuk Dewasa Aedes Albopictus terhadap Insektisida Lamba-Cyhalothrin dan Cypermethrin di Desa Ujung Bandar, Kabupaten Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2024)Aedes albopictus is a vector for several diseases, such as dengue hemorrhagic fever (DHF), and zika. These diseases require preventive measures such as vector mosquito control, which usually uses insecticides. Ujung Bandar ... -
Pengaruh Penambahan Serbuk Kulit Nanas (Ananas Comosus L. Merr) pada Pakan terhadap Pertumbuhan dan Kelangsungan Hidup Ikan Sepat Siam (Trichogaster Pectoralis, Regan 1910)
(Universitas Sumatera Utara, 2024)Siamese sepat or snakeskin gourami (Trichogaster pectoralis, Regan 1910) has known as an aquaculture fish with high production numbers. This study aimed to inspect the effect of pineapple peel powder (Ananas comosus L.Merr) ... -
Keragaman Bakteri Endofit dari Akar Durian (Durio Zibethinus) dan Potensi Antimikrobanya
(Universitas Sumatera Utara, 2024)Durian is a local Indonesian annual that has a high economic value. The presence of microbes plays a role in survival and contributes to the growth and survival of plants in nature. The microorganisms that live on durian ... -
Efek Pemberian Ekstrak Etanol Biji Pinang (Areca Catechu L.) terhadap Morfologi dan Histologi Ginjal Tikus (Rattus Norvegicus L.) Jantan yang Diinduksi Aloksan
(Universitas Sumatera Utara, 2024)Areca nut is plant often used for traditional medicine, one of which is as an antidiabetic plant that can reduce blood glucose level. Its safety for organs such as the kidneys has not been widely studied so far. The purpose ...