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Kota mataram,
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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 2,520 Documents
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Carbon Sequestration Assesment of Mangrove Ecosystem in Karang Anyar Village, Tanggamus Regency Kusuma, Anma Hari; Caesario, Racmad; Lahay, Almira Fardhani; Hasani, Qadar; Jati, Ciptaning Weargo; Sarida, Munti; Siregar, Amril Ma'ruf
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7491

Abstract

Mangroves is a ecosystem can absorb carbon more efective than teresterial vegetataion. The goal of this research is to analyze effectively carbon absorption in the mangrove aea in the Karang Anyar Village. The research was conducted in Karang Anyar Village. Survey and tree sampling were carried out from Juni to August 2024.  Biomass measurements provided information on carbon sequestrtaion. Data obtained was analyzed using allometric equation. Results showed that mean carbon sequestration of the mangrove biomass in Karang Anyar Village was 40,45-69,24 kg C/m2. Carbon sink in mangrove sediment was 402,15-907,95 kg C/m2. This research showed that mangrove ecosystem in Karang Anyar Village held sufficiently high carbon stock. Nevertheless, the future study needs to be directed to carbon stock comparison with other locations in Lampung.
In-Silico Study to Design Foot and Mouth Disease Vaccine Candidates Andayani, I Gusti Ayu Sri; Depamede, Sulaiman Ngongu; Dradjat, Adji Santoso; Sriasih, Made
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7493

Abstract

Foot and Mouth Disease (FMD) is a viral disease that affects livestock and can cause significant economic losses.  Vaccination has been recognized as the primary strategy for FMD prevention, but vaccine development, especially conventional vaccine production, has time, cost, and effectiveness limitations. Using software-based immunoinformatics methods has cost and time efficiency for simulation development and calculations in vaccine development research.  This study aimed to design FMD vaccine candidates using an epitope-based in-silico approach, focusing on identifying potential epitopes of the pathogen that causes FMD. The in silico approach was used to analyze FMD virus genome sequences from UniProtKB (https://www.ebi.ac.uk/Tools/msa/clustalo) and the National Library of Medicine application (https://www.ncbi.nlm.nih.gov).  Furthermore, the prediction of FMD virus epitopes was analyzed using the Immuno-Epitope database, and the prediction of peptide antigenicity levels using VaxiJen 2.0 software. The analysis identified eight potential epitope candidates, such as CSIQKR, TEFGFHPNA, EIRPMEKVRA, YEGVEL, SFARRGT, APGLPWALQGKRRGALIDFESGTV, MASLEDKGKPF, and TLPTSFNYGAI with antigen binding affinities of 2. 9424nM, 1.65nM, 1.4702nM, 1.2966nM, 1.2643nM, 1.1967nM, 1.1921nM and 1.0143nm respectively. These epitopes are expected to form the basis for developing more selective and safe peptide vaccines. By focusing on epitopes, the resulting vaccine can improve the effectiveness and safety of vaccination and accelerate the development of new vaccines for FMD prevention.
Qualitative and Quantitative Analysis of Lecithin Content and Bioactive Chemical Compenents of Corn Oil From Dompu District Ramadhan, M. Kaisar Sutomo; Permadi, Adi; Sulistiawati, Endah
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7494

Abstract

Indonesia is one of the Asian nations that has an abundance of vegetation that can be utilized as food yields and medication. One of the plants that can be utilized as neighborhood food is the Corn plant (Zea mays L.), corn is one kind of food crop that has for some time been known and developed. Dompu Regency, located in the province of West Nusa Tenggara,  is one of the largest corn producers in Indonesia. From this statement, a revolution is needed for the development of the food industry sector, namely the development of processed products from corn raw materials, namely corn oil. Corn oil extraction is carried out by the Maceration Method, a simple extraction process carried out by soaking the simplicia in a solvent for a certain time at room temperature and protected from light. Development in finding the percentage level (%) of lecithin LC-HRMS (Liquid Choromatography High-Resulution Mass Spectrometry), Among the Compounds: Percentage level (%) of bioactive lecithin compounds from major (main) components: 1-[(11Z)-octadecenoyl]-sn-glycero-3-phosphocholine (C26H52NO7P) = 8.882%, 1-Linoleoyl-2-Hydroxy-sn-glycero-3-PC (C26H50NO7P) = 6.874%, 1 Palmitoy-Phospadicholine (C24H50NO7P) = 1.898%, 1-Oleoyl-2-hydroxy-sn-glycero-3-PE (C23H46NO7P) = 1.161%, 2-monolinolenin (C21H36O4) = 0.577, (2R)-2-Hydroxy-3-(phosphonooxy)propyl (11Z,14E)-11,14-icosadienoate (C23H43O7P) = 0.386 %, 1-Stearoylglycerol (C21H42O4) = 0.072.
Effectiveness of Using Lemon Aromatherapy to Reduce the Frequency of Nausea and Vomiting in Pregnant Women in the First Trimester Fairuza, Filda; Nurlaela, Sandy; Parwansyah, Rosiana
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7496

Abstract

Nausea and vomiting are a common symptom of early pregnancy for pregnant women. Aromatherapy may be used in the treatment to reduce this. The method for utilizing fragrant healing to decrease sickness and spewing can be by breathing in utilizing a diffuser, candles and tissue. Lemon aromatherapy is frequently used during pregnancy and childbirth and is regarded as safe. At TPMB Titin Prihartini, S.ST., Bd, Pandeglang Regency in 2024, the purpose of this study is to determine whether lemon aromatherapy reduces the frequency of nausea and vomiting in pregnant women who are in the first trimester. A one-group pre-test, one-group post-test design is used in this quasi-experimental design. Total Sampling was used for the sampling, with 30 respondents, and observation sheets were used to collect the data. According to the findings of this study, the majority of pregnant women experienced a frequency of nausea and vomiting prior to the intervention, with 27 respondents (90 percent), and after the intervention, with 26 respondents (86.7%) in the mild category. The Wilcoxon signed-rank test, which has a p-value of 0.000 (0.05), is used in statistical tests. These results demonstrate that lemon aromatherapy reduces the frequency of nausea and vomiting in pregnant women in their first trimester at TPMB Titin Prihartini, S.ST., Bd in 2024. Lemon aromatherapy can help alleviate nausea and vomiting in pregnant women who are in the first trimester of their pregnancy.
Improving the pH of Palm Oil Mill Effluent (POME) with Aerator Treatment and Water Dilution Jaya, Galang Indra; Gunawan, Sri
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7498

Abstract

Palm Oil Mill Effluent/POME is a by-product produced from the processing of fresh fruit bunches/FFB into crude palm oil/CPO. Aeration of POME is one of the processing methods that aims to reduce the levels of organic matter and pollutants. This study aims to determine the dynamics of POME pH with aeration treatment and dilution variations in order to speed up the waste treatment time.The method used in this research is to make the treatment of pure POME, POME & water in a ratio of 1:1 & 1:2. The process carried out in the study was to place the solution into a 1 liter bottle and given an air flow using an aerator with a discharge of 0.66 l/min. POME samples were taken every 24 hours for a span of 7 days. The pH was measured using the electrometric method. On day 2, it was found that the pH of the 1:1 treatment POME had reached pH 6, while the 1:2 treatment on day 3 and the pure POME only reached pH 6 on day 5. Aeration is an effective method to neutralize the acidity of POME. The increase in POME pH was fastest in the 1:2, 1:1 and finally pure POME dilutions. All treatments met the pH quality standard on day 5. Aeration can help improve the quality of POME so that it is more environmentally friendly.
Impact of Harvest Age on Corn (Zea Mays) Fodder Productivity Mustaqim, Fajar; Ludfia Windyasmara; Engkus Ainul Yakin
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7499

Abstract

Corn fodder is simply seeding corn kernels that are sown until the age of 8-13 days. The harvest age of corn fodder is one way to regulate plant productivity factors. The regulation of the harvest age will affect regrowth, so it is very important to pay attention so that corn fodder plants can provide optimal production in both quantity and quality. The purpose of this study was to determine the effect of differences in harvest age on the productivity of corn (Zea mays) forage. This study used the Completely Randomized Design (CRD) method consisting of 4 treatments and 5 replications, namely T1 (harvest age 7 days), T2 (harvest age 14 days), T3 (harvest age 21 days) and T4 (harvest age 28 days). The parameters observed were plant height, number of leaves, wet biomass and dry biomass. The results showed that the average height of corn fodder plants (Zea mays) was T1; 1.11, T2; 4.96, T3; 8.30 and T4; 10. The average number of leaves of corn fodder plants (Zea mays) at T1; 0.34, T2; 1.30, T3; 1.30 and T4; 2.3. The average wet biomass of corn fodder plants (Zea mays) at T1; 197.67, T2; 249.33, T3; 246 and T4; 241.67. The average dry biomass of corn fodder plants (Zea mays) at T1; 35, T2; 47, T3; 45 and T4; 41. The conclusion of this study is that corn fodder with different harvest age variations has a very significant effect on plant height, number of leaves, wet biomass and dry biomass.
Envenomation by Dangerous Jellyfish in Indonesia and Adjacent Areas: A Literature Review Manafe, Carolian Janicca Winda; Zirly Vera Aziri
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7501

Abstract

This article reviews the epidemiology, etiology, pathogenesis, clinical manifestations, diagnosis, management, prognosis, and complications associated with jellyfish stings. Cases of jellyfish envenomation are increasing in line with climate change and human activities in aquatic environments. Data show that jellyfish envenomation is frequent in tropical and subtropical waters, with the number of cases reported in Australia and the Western Pacific region, as well as some cases in Indonesia is higher compared to rest of Asia. The jellyfish species Chironex fleckeri, Portuguese man o' war, and Carukia barnesi have the potential to cause severe and life-threatening systemic manifestations. The initial management of jellyfish stings remains uncertain and is still a subject of debate. Appropriate and prompt first aid is crucial for improving the patient’s prognosis. Other factors, such as the patient's condition and the environment, also affect prognosis and the potential for complications.
Literatur Review: Siderophore Activity and Campability of Bacillus as Pathogen Controller of Eggplant Plant Saputra, M. Rizki; Chatri, Moralita
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7502

Abstract

Solanum melongena (eggplant) is an important cultivated vegetable crop with a very high consumer level, both in tropical and subtropical regions. Eggplant is widely favored by the public because in addition to having a good taste, it can also be made pickled and candied eggplant, and is good as a source of nutrition in supporting public health. Siderophores are metal-coating agents with low molecular mass (200-2000 Da) produced by microorganisms and plants, especially under Fe-limiting conditions. Antagonistic bacteria generally live colonizing roots an d are beneficial, because they are able to increase plant growth and induce systemic resistance. one species of the genus Bacillus spp. namely B. subtilis is able to produce amylase, protease, pullunase, chitinase, xylanase and lipase enzymes which are secondary metabolites to control pathogens and spur plant growth. This article is sourced from relevant literature studies related to the title. The purpose of writing the article is to determine the benefits of siderophores as pathogen disease control in eggplant plants. Results successfully inhibited the growth of pathogens.
Seaweed Diversity at Batu Lawang Beach, Sengkol Village, Pujut District, Central Lombok Regency Cokrowati, Nunik; Yatin, Nur; Rahmadani, Thoy Batun Citra; Rusman, Rusman; Ahmad, Ahmad; Sukriadi, Sukriadi; Pebriata, M. Nurdian
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7508

Abstract

Seaweed is a marine and fisheries resource that is currently widely utilized by aquaculture communities and coastal fishermen, because in addition to being easy to maintain, it also provides economic benefits. Batu Lawang beach has the potential for natural grass resources that can be developed. This can be seen from the condition of the water quality in the waters. Some types of seaweed that are cultivated are Kappaphycus alvarezii and Eucheuma spinosum. Batu Lawang beach is an area that has a variety of macroalgae, as well as a fairly large coral reef area. Therefore, this research was carried out to find out the types of macroalgae in the Batu Lawang Beach area. The research was conducted in May-June 2024. This research location is located at Batu Lawang Beach, Gerupuk, Sengkol Village, Pujut District, Central Lombok Regency. This research used purposive sampling method. The results of this study, seaweed that grow naturally are Acanthophora spicifera, Gracilaria verrucosa, Sargassum cristaefolium, Gracilaria coronopifolia, Valoniopsis pachynema, Ulva, K. alvarezii, Halimeda opuntia, Eucheuma spinosum, Dictyopteris dichotoma, Laurencia papillosa, Codium fragile, Padina sp., Turbinaria decurrens, Halimeda tuna, Gracilaria sp. The conclusion is the is 16 types of seaweed that grow wild, with each type containing different antioxidants and chlorophyll-a.
Formulaton of Nanoemulsion Biopesticide for Horticultural Plants from Fermented Extracts of Jongi Plant and Cigarette Butts Lithamivitra, Lithamivitra; Aeni, Nurul; Miftah, Nurul; Kardinal, Kardinal; Reza, Abdul; Isdaryanti, Isdaryanti; Putera, Alexander Kurniawan Sariyanto; Nurdin, Gaby Maulida
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7509

Abstract

Pests are one of the major challenges faced by farmers, particularly those cultivating horticultural crops, due to the difficulty in eliminating these pests, which also increases production costs. Therefore, the development of a practical and effective biopesticide is essential. This study aims to develop a nanoemulsion biopesticide from two readily available raw materials, namely the jongi plant and cigarette butts. The research employed an in vitro laboratory testing method to evaluate the effectiveness of five formulas (F0, F1, F2, F3, and F4) against two types of pests, Fusarium sp. and whiteflies. The effectiveness was measured by the inhibition zone in the Fusarium sp. test and the mortality rate of whiteflies. Additionally, a direct toxicity test was conducted on tomato plants to assess the safety of the formula. The results showed that the developed biopesticide was effective in inhibiting the growth of Fusarium sp. compared to the positive control and increased the mortality rate of whiteflies. Among the four formulas tested, three of the best-performing formulas were selected based on their inhibition and pest mortality rates, followed by toxicity testing. Formula 3, composed of 0% tobacco, 70% jongi, 20% starter, and 10% palm sugar, with a final pH of 4.2, was found to be safe for use without causing side effects on the plants.

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