IJOEP : International Journal of Ecophysiology
International Journal of Ecophysiology (IJOEP) is a peer-reviewed biannual journal (February and July) published by TALENTA Publisher and organized by Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara (USU) as an open-access journal. It welcomes full research articles in the field of Biological Sciences from the following subject area: Anatomy, Comparative anatomy, Histology, Astrobiology, Biochemistry, Biological engineering, Biogeography, Bioinformatics, Biolinguistics, Biomechanics, Biomedical research, Biophysics, Biotechnology, Synthetic biology, Botany, Phycology, Plant physiology, Cell biology, Chronobiology, Cognitive biology, Conservation biology, Cryobiology, Developmental biology, Embryology, Gerontology, Ecology, Evolutionary biology, Genetics, Genomics, Epigenetics, Immunology, Marine biology, Microbiology, Bacteriology, Mycology, Parasitology, Virology, Molecular biology, Nanobiology, Neuroscience, Paleontology, Pathobiology, Pharmacology, Physiology, Phytopathology, Psychobiology, Quantum biology, Systems biology, Structural biology, Theoretical biology, Zoology, Ethology, Entomology, Herpetology, Ichthyology, Mammalogy, and Ornithology. Each publication will contain 10 (ten) manuscripts.
Articles
84 Documents
<![CDATA[The Effectivity of Bacteria Isolated From of Liquid Waste Palm Oil Plantation on Ganoderma Boninense ]]>
<![CDATA[Fitratul Aini]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.841
<![CDATA[Ganoderma boninense is one of the main pathogenic fungus in oil palm plantations. Generally, these pathogen cause root rot (basal stem rot). Biological control that has been widely used reduce the infection is using bacteria. Liquid waste palm oil has potential to produce bacteria that is able to degrade Ganoderma boninense that causes root rot in oil palm. Liquid waste were obtained from Muaro Sabak Regency Jambi Province. Bacteri were isolated and cultivated in nutrient agar medium, characterized and identified for antagonistic test against G. boninense. Results showed that 16 bacterial isolates were identified, among of them are able to inhibit Ganoderma boninense.]]>
<![CDATA[The Activities of Plant Extracts Heritage of Melayu Culture-Riau Archipelago on Bacteria Causing Diarrhea ]]>
<![CDATA[Rodesia Mustika Roza]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.842
<![CDATA[Diarrhea is one of the major health problems in Indonesia. Lingga Malay ethnic in Riau archipelago use alternative medicines in a form of a obat pahit potion to treat diarrhea. This research aimed to determine the antibacterial activity of obat pahit extraction against Escherichia coli ATCC 11775, Salmonella ATCC 14028 and Shigella flexneri ATCC 12022. Antibacterial activity can be seen with the formation of inhibitory zone using diffusion method. The extract concentration used were 100%, 75%, 50% and 25%. Based on the antibacterial activity test, the largest inhibitory zone against E. coli was found at 100% Cnestis palala extract of 8.29 mm and the smallest inhibitory zone was found at 25% traditional medicine practioner (TMP) 2 SP4 of 5.73 mm. The more over, the largest inhibitory zone to S. was found at 100% Bauhinia semibifida of 8.81 mm; and the smallest inhibitory zone was found at 50% TMP 2 SP4 of 6.30 mm. Antibacterial activity with the largest inhibitory zone against S. flexneri at 75% C. palala of 6.21 mm and the smallest inhibitory zone was found at 50% TMP 2 SP4 of 5.62 mm.]]>
<![CDATA[Fungal Infection and Aflatoxin Contaminationon Dried-Stored Spices ]]>
<![CDATA[Kiki Nurtjahtja]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.843
<![CDATA[A review regarding fungal infection and aflatoxin contamination by Aspergillus flavus during pre and post-tharvest handling on spices is presented. The results of research on spice storage management, physical and chemical treatments on dried spices before storage to prevent fungal infection are discussed.]]>
<![CDATA[Description of Kidney Histology of Mus Musculus After Giving Nano Hebal Rhodomyrtus tomentosa (Haramounting) ]]>
<![CDATA[Syafruddin Ilyas]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.844
<![CDATA[The objective of this study was to determine the description of kidney histology of Mus musculus after giving Nano Herbal Rhodomyrtus tomentosa (Haramonting). R.tomentosa (Haramonting) is made on a nanoscale using High Energy Milling (HEM). This research use the Completely Randomized Design (CRD), which consists of six groups of CMC 0.5% and Nano- R.tomentosa (Haramonting) at dosage of (100; 141,42; 200; 282,82; 400)mg/20g body weight. The kidneys were made into preparations by using the paraffin method and Hematoxylin Erlich-Eosin staining (HE). The results of histological kidneys showed that there is a significant difference (P<0,05) between control group and treatment groups with damaged cells and increased proximal tubular narrowing in kidneys, but there was not significantly different in weight of kidneys (P>0,05).]]>
<![CDATA[Synthetic Peptides as Immunogen in the Production of IgY Anti-C-Myc Antibody in Local Chicken (Gallus Gallus) ]]>
<![CDATA[Salomo Hutahaean]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.845
<![CDATA[Experiments conducted to determine the effect of doses of immunogen on the levels of IgY c-Myc antibody in chickens. To generate antibody, we used a synthetic peptide as an immunogen, which is developed from the epitope of the c-Myc protein. Hens were immunized a week after their first eggs were produced. Antigen diluted in double distilled water and emulsified with Freund 's Complete Adjuvant. The suspension was injected into the area of the chicken breast subcutaneously with a dose of 0, 0.02, 0.04, 0.06, 0.08, 0.1, 0.12, 0.14, or 0.16 mg per hen. Booster injection performed on days 10, 20, and 30 with the same volume of emulsion, but using Incomplete Freund 's Adjuvant and the amount of antigen was half of the amount of the first Immunization. Extraction of IgY from eggs was carried out using kits from Gallus Immunotech. The level of IgY was quantified using a spectrophotometer where the absorbance was read at 280 nm. The results showed that after the first immunization IgY content of the egg were reached the level of >5 mg/ml yolk when the dose of immunogen was above 0.1 mg/hen. The level was higher in eggs produced after the third booster ( >8 mg/ml yolk), but it is lower in all groups treated with immunogen above 0.1 mg/hen. We concluded, immunogen dosage of 0.1 mg/hen was optimum in the production of chicken IgY anti-c-Myc.]]>
<![CDATA[Rearing of Local Earthworms in The Mixed Media of Bagasse and Fish Waste ]]>
<![CDATA[Darmi Buchari]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.846
<![CDATA[This study aims to determine the preference of earthworms to a media, their population growth in the media, and their ability to produce vermicompost. This study was designed with a completely randomized design consisted of three (3) treatments and each treatment consisted of 7 replications. The treatments in this study were 3 species of local earthworms (Pheretima javanica, Pheretima asiatica, and Pontoscolex corethrurus). The rearing media used was the mixture of bagasse and fish waste. The parameters studied were the time needed by the earthworms to enter the media, the earthworms population growth rate, and the time needed by the earthworms in producing vermicompost. The results showed the three species tested could be lived on mixed media of bagasse and fish waste. The worm's preference to the media was determined based on the time of earthworms entering media. The fastest was Pheretima javanica (0.23 minutes), followed by Pheretima asiatica (3.09 minutes) and Pontoscolex corethrurus (6.94 minutes) (p<0.05). The population growth rate between Pheretima javanica (5.85) and Pheretima asiatica (5.71) was not significantly different, but both significantly higher than Pontoscolex corethrurus (0.29 individual/month). The time for vermicompost formation in Pheretima javanica (6 weeks) and Pheretima asiatica (6 weeks) was not significantly different, but they were significantly lower from the time for vermicompost formation in Pontoscolex corethrurus (8 weeks).]]>
<![CDATA[Type of helminth parasite in Snakehead fish (Channa striata) from Seuneubok Cina, Indra Makmur, Aceh Timur, Indonesia ]]>
<![CDATA[Masitta Tanjung]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.847
<![CDATA[Snakehead fish (Channa striata) is one of the freshwater fish in tropical regions such as Asia and Africa, and has high nutrition but is difficult to cultivate. In Indonesia, Snakehead fish are found in paddy fields, swamps and ditches, making them susceptible to parasites. Constraints in Snakehead fish cultivation are caused by the nature of the fish as a predatory, lack of the availability of food and environmental conditions that can affect the growth of the fish. The former paddy fields in Seuneubok Cina of Indra Makmur, Aceh Timur, Indonesia, is found many Snakehead fish. This research aims to determine the types of parasites that infect Snakehead fish. The Snakehead fish was taken using electrofishing gear with purposive sampling method, then dissected and identified the endoparasites which contained in the fish intestines. The research results found three genus of parasites: Pallisentis, Procamallanus and Camallanus.]]>
<![CDATA[Characteristics of Biocellulose from Sago Liquid Waste with Different Ammonium Sulfate Concentration ]]>
<![CDATA[Nur Arfa Yanti]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.848
<![CDATA[This research aims to utilize sago liquid waste to produce biocellulose with different concentration of ammonium sulfate and to know characteristics of biocellulose. Production of biocellulose was done in sago liquid waste substrate with different concentration of ammonium sulfate, namely 0.5, 1, 1.5 and 2% (w/v) by using bacteria local strain Acetobacter xylinum LKN6. The observed parameters included thickness, yield, crude fiber and organoleptic.The analysis results showed that ammonium sulfate concentration given a different to the thickness, yield, crude fiber and organoleptic. The best characteristic of biocellulose obtained in the treatment of 1.5% ammonium sulfate concentration. The biocellulose from sago liquid waste potential as dietary fiber food.]]>
<![CDATA[Wealth Study of Types Of Rats On Natural And Made In Ecosystems In Bengkulu Province ]]>
<![CDATA[Rizwar S]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.849
<![CDATA[Rats are cosmopolitan animals because they are able to adapt to environmental changes. These small mammals can be found from primary and secondary forests, plantation areas, rice fields to human settlements. The species richness, distribution, size and dynamics of rats in an ecosystem are determined by external factors such as climate, season, availability of food, habitat / ecosystem type, barrier, type of vegetation cover, soil type, competition, predation and internal factors such as age structure and fertility. This study aims to analyze the richness of rats in natural ecosystems such as secondary forests, swamp forests, grasslands and artificial ecosystems such as palm plantation ecosystems, rubber plantations and rice field ecosystems in Bengkulu Province. The study is located around Bengkulu University, Rojolelo Park, palm plantation of PT. Bio Nusantara, North Bengkulu regency and Mekar Jaya village in Muko-Muko Regency. The study was conducted for four (4) months from April to August 2016. Rats were collected using clamps traps and all traps placed in the study areas used purposive sampling method. The results of the study found five (5) species of rats occupying different ecosystems, namely Rattus tiomanicus, R. exulans, R. argentiventer, R. novergicus and Mus musculus castaneus. Species of R. tiomanicus and R. exulans are cosmopolitan species that occupy all types of ecosystems. R. argentiventer are characteristic in rice field ecosystem, R. novergicus occupies only palm and rubber plant ecosystems while Mus musculus castaneus is found only in palm and paddy field ecosystem.]]>
<![CDATA[Effects of Coffee Consumption In Improving Hyperglicemia In Diabetes-Induced Mice ]]>
<![CDATA[Hesti Riany]]>
<![CDATA[ International Journal of Ecophysiology Vol. 1 No. 1 (2019): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v1i1.850
<![CDATA[Diabetes mellitus (DM) is a chronic metabolic disease. It was caused by lack of insulin or cells cannot use insulin so that blood glucose becomes high (hyperglycemia). And it will cause other systemic diseases of the disease (metabolic syndrome) that can increase the factor of death. Coffee is one of the consumed plants that contain antioxidants and chlorogenic acid that have a role as antihyperglycemia. In other hand Jambi as one of the coffee producing regions (arabica, robust and liberica) in Sumatra and it has a potency as a coffee producer. In addition, people's habits in consuming coffee have the opportunity to be one solution in overcoming diabetes. This study aimed to determine the effect of hyperglycemia disease. The method was experimental with 5 treatments (metformin, arabica, robust, liberica and aquades) and 3 replications. Before threatments mice were injected with streptozotosin in order to be hyperglycemia, then mice with blood glucose ≥ 116 mg / dl were measured their blood glucose, weight and made the histology of the liver. Then the datas were analyzed using ANAVA. The results showed that Jambi coffee (arabica, robust and liberica) can lower blood glucose levels hyperglycemia mice until day 16. And the treatment with liberica coffee lowers hyperglycemia with the lowest glucose levels. While the histological features of mice liver showed lower cell degeneration especially in mice by coffee treatment, especially arabica coffee.]]>
