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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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Necrotizing Enterocolitis: Stem Cell as Future Potential Therapy Syafitri, Bq. Annisa Salmaadani; Manafe, Carolina Janicca Winda; Hulfifa, Lale Nandita; Aziri, Zirly Vera; Afifah, Fiza; Wahyudi, Syahla Marsellita; Musyarof, Disa Fadil
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.v24i4.7529

Abstract

Necrotizing enterocolitis (NEC) is an inflammatory bowel condition in infants and considered as one of the leading causes of death in infants, especially premature infants. The high mortality rate due to NEC in recent decades has become a problem because there is no current therapy that can optimally treat NEC. Currently, NEC is treated using Bell's Staging as a guide and surgery is a common procedure, especially if necrosis has occurred. However, complications arising from surgery not only reduce the patient's quality of life but can also result in death. Therefore, it is necessary to find new therapy in order to treat NEC effectively and minimize the possibility of side effects in NEC patients. Stem cells are known for their regenerative abilities which is potential to overcome tissue damage due to excessive inflammation in NEC. Previous studies also show that stem cells have become new therapy to treat other intestinal diseases which have similar features with NEC. This study aims to explain mainly on stem cells’s promising mechanism of action in treating NEC. The method used for this study is a literature review design by selecting and reviewing relevant previous literature using databases such as Google Scholar, PubMed and Science Direct. This paper summarizes pathophysiology, clinical manifestation, current therapy and mechanism of action of stem cells and their derivatives as future potential therapy for NEC. Based on evidence found, stem cells and their derivatives are potential to be used as NEC therapy in the future. However, the data obtained is not sufficient to support its use in humans. Given the urgency in finding an effective NEC management and the potency of stem cells, further research is needed to support the use of stem cells as NEC therapy.
Comparative Study of Bioactive Compounds of Several Varieties of Sembalun Garlic, Lombok, West Nusa Tenggara Atika, Baiq Naili Dewi; Khaerul Ihwan; Pahmi Husain; Dwi Kartika Risfianty; Ishmah Humaidatul Amini Zaim Alyaminy; Irna Il Sanuriza; Irfan Jayadi
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.v24i3.7532

Abstract

Indonesia is known as a rich country in herbs, which are utilized as a source of natural herbal medicine, including garlic. This research aims to achieve a comparative study of the bioactive compounds retained in several varieties of Sembalun garlic. The research was conducted at the Integrated Laboratory of Mataram State Islamic University and Laboratory of Biology, Faculty of Mathematics and Natural Sciences, University of Nahdlatul Wathan Mataram. Three varieties of Sembalun Garlic were used in this research, namely the Nunggal, Jamak and Sanggah varieties, which were extracted using 96% ethanol. The research results show bioactive compounds in flavonoids, saponins, steroids and phenolics in the three varieties of Sembalun garlic (Nunggal, Jamak, and Sanggah).
In Vitro Digestibility Value of MA-11 Fermented Organic Materials of Organic Cassava Peel as Animal Nastava, Devy Marselina; Sukaryani, Sri; Purwati, Catur Suci
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.v24i3.7535

Abstract

By identifying and resolving these problems, research can make a greater contribution to the use of cassava peel as quality and safe animal feed, and can provide clearer guidance for livestock practitioners. This research aims to determine whether the use of MA-11 can affect the digestibility of dry matter and organic matter in cassava skin, so that it can provide additional information regarding the quality of fermented and unfermented cassava skin. This research was designed using a Randomized Random Design (RAL), which consisted of 3 treatments and 4 replications. The treatment given to cassava skin was P0: Cassava skin fermented with MA-11 0 ml, P1: Cassava skin fermented with MA-11 as much as 1 ml, P2: Cassava skin fermented with MA-11 as much as 2 ml. The research results showed that the average KcBK value was P0: 60.57%, P1: 65.08%, P2: 66.98%. The mean KcBO value obtained was P0: 67.20%, P1: 69.47%, P2: 71.22%. The conclusion obtained in this research is that the cassava peel fermentation process using probiotic MA-11 for 14 days with different levels has a very significant effect on the digestibility of dry ingredients and has a significant effect on the digestibility of organic ingredients that have been carried out.
The Effect of Probiotic Administration with Different Time Intervals on Water Quality in Shrimp Cultivation Vaname (Litopenaeus vannamei) Biofloc System Maulana, Rona; Diniarti, Nanda; Affandi, Rangga Idris
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.v24i3.7537

Abstract

Vaname shrimp is one of the marine fishery commodities that has high economic value. Water in vaname shrimp cultivation must be maintained in quality. Ammonia can be harmful to shrimp, control of ammonia and organic matter content can be done biologically with the application of probiotics. Therefore, this study needs to be conducted to determine the right time interval in providing probiotics to the water quality of vaname shrimp cultivation in the biofloc system. The method used in this study is the experimental method, using RAL with 4 treatment levels and 3 repetitions, with treatment P0 (Once during maintenance), P1 (once every 5 days), P2 (once every 10 days) and P3 (once every 15 days), the probiotic used in this study is the probiotic Probio-7. The results of the study during 56 days of maintenance showed that the average value of water quality salinity 26.7-27 ppt, temperature 27.7-28°C DO 7.13-7.16 mg/L, nitrate 0.63-0.87 mg/L and Total Ammonia 0.76-0.92 mg/L. Based on the research activities that have been carried out, the interval of probiotic administration has a significant effect on water quality. Probiotic administration can increase the Total Ammonia content and reduce the amount of ammonia in this study. Probiotic administration with an interval of 5 days once (P1) gave a total ammonia value of 0.78 mg/L with an ammonia amount of 0.067 mg/L. P1 also gave the highest growth, absolute weight 5.61 g, absolute length 8.82 cm, SGR 5.779%/Day and FCR 1.47.
Detection of mecA Gene As a Marker for Staphylococcus aureus Types of Methicillin Resistant Staphylococcus aureus (MRSA) Using PCR Technique Sari, Monica Ayu Retno; Qurrohman, Muhammad Taufiq; Dewangga, Vector Stephen
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.v24i4.7539

Abstract

Staphylococcus aureus is a Gram-positive bacterium responsible for various infections, showing strong resistance to β-lactam antibiotics due to the mecA gene, which encodes Penicillin-Binding Protein 2A (PBP2A). This resistance contributes to the emergence of Methicillin-Resistant Staphylococcus aureus (MRSA), posing significant challenges in clinical settings. Detecting the mecA gene is crucial for identifying MRSA and guiding appropriate treatments. This study aimed to detect the mecA gene in clinical pus samples from patients with MRSA infections in hospitals in Surakarta. A qualitative descriptive design was used. DNA was isolated from 12 clinical pus samples, and the mecA gene was detected using Polymerase Chain Reaction (PCR). Gel electrophoresis visualized the amplified DNA bands, and results were analyzed based on comparison with positive and negative controls and a DNA ladder. The results showed positive amplification of the mecA gene in all clinical samples, with clear DNA bands at 571 base pairs. One sample (SP1) and the positive control exhibited weaker bands, but the presence of the mecA gene was confirmed in all cases. The study concluded that all clinical samples were positive for the mecA gene, indicating the presence of MRSA. PCR proved to be an effective tool for detecting the mecA gene in clinical samples and is valuable for identifying MRSA in healthcare settings.
Feasibility Analysis of Community Forest Ecotourism Potential in Tumpak Village, Pujut District, Central Lombok Regency Sulaksono, Hendro; Sukardi, Lalu; Hadi, Islamul
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.v24i3.7541

Abstract

The Tumpak Village Community Forest Area has various potentials, with natural views as the main attraction. This research aims to determine the priority scale for developing this area through a feasibility level analysis using rules based on the Analysis of Operational Areas of Natural Tourist Attraction Objects (ADO-ODTWA). This research is quantitative and uses a survey method, with scoring analysis based on criteria in the ADO-ODTWA rules. Primary data was obtained through field observations, in-depth interviews, and distributing questionnaires. Meanwhile, secondary data was obtained through literature reviews, journal articles, books and geospatial data. The research results show that the Tumpak Village Community Forest area has a high level of feasibility and has the potential to be developed as ecotourism. Criteria for obtaining a high classification include ecotourism attractiveness, availability of accommodation, surrounding environmental conditions, supporting facilities, and availability of clean water. The criteria for the medium classification include accessibility, management and services that still need improvement, as well as marketing that is still limited. Management and development of this area can be carried out with a focus on managing potential tourist attractions and improving the required infrastructure. In addition, increasing accessibility requires support from the Regional Government of Central Lombok Regency to improve road infrastructure.
The Effect of Organic Fertilizer from Palm Factory Liquid Waste and NPK Fertilizer on Vegetative Growth of Peanuts (Arachis hypogaea L.) Situmorang, Vickasyah Ramadani; Rahmadina, Rahmadina; Idris, M.
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.v24i4.7545

Abstract

Peanuts (Arachis hypogea L.) are leguminous plants which are classified as the most important nuts after soybeans in Indonesia. Indonesia not only imports rice but also imports other food crops such as peanuts. By using NPK fertilizer and organic liquid palm oil waste fertilizer as treatments in this study, we hope to boost the productivity of peanut plants. A Factorial Randomized Group Design (RAK) was employed in the study, with two treatment components, namely: 1. Factors for administering liquid organic fertilizer from palm oil mill waste (P) with 4 levels, namely: P0= POC LCPKS 0 ml/polybag P1= POC LCPKS 100 ml/polybag P2= POC LCPKS 200ml/polybag P3= POC LCPKS 300 ml/polybag, 2. The NPK (K) fertilizer application factor consists of: K0= 0 mg / polybag K1 = 7.5 mg/polybag K2 = 15 mg/polybag K3= 22.5 mg/polybag. The findings of the research indicate that the vegetative growth of peanut plants (Arachis hypogaea L.) is significantly impacted by the availability of a combination of organic fertilizer made from liquid palm oil waste and NPK fertilizer. Nearly every metric, including plant height, leaf area index, and blossom count, is significantly impacted by the application of a blend of NPK fertilizer and organic fertilizer made from liquid palm oil waste. The P3K2, P0K1, P1K3, and P2K1 levels represent the best level attained depending on the supply of POC from palm oil waste and NPK fertilizer.
Marine Organisms with Anti-Amyloid Effect Through Their Role as BACE1 Inhibitors for Preventive Effort in Alzheimer’s Disease: A Literature Review Putra, Made Raditya Arhya; Saputri, Legis Ocktaviana; Wicaksono, Teguh Budi; Nugraha, Kadek Nandita; Putri, Ajeng Ayu; Salsabila, Rika Kamila; Fidelia, Puspa Zalika
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.v24i4.7546

Abstract

Alzheimer’s Disease (AD) is a gradually worsening neurodegenerative condition characterized by the build-up of beta-amyloid proteins, resulting in a decline in cognitive abilities. β-site amyloid precursor protein cleaving enzyme-1 (BACE1) is known to play a role in the formation of beta-amyloid plaques. Thus, theoretically, inhibiting BACE1 can potentially prevent and slow down the accumulation of these plaques. This study is a literature review that compiles data from various research examining the inhibitory effects of compounds from marine organisms on the BACE1 enzyme. A comprehensive analysis was conducted on the available literature to evaluate the potential of these compounds.  19 marine organisms and 40 compounds were identified with low IC50 values, five compounds with notably low IC50 values were identified: (1) 8,8’-Bieckol [1.62 µM] from Ecklonia cava, (2) Phlorofucofuroeckol A [2.13 µM] and (3a) Dieckol [2.21 µM] from Eisenia bicyclis, (4) bis-(2,3,6-tribromo-4,5-dihydroxybenzyl) ether [2.32 µM] from Symphyocladia latiuscula, (3b) another Dieckol [2.34 µM] also from Ecklonia cava and (5) Heparan sulfate [2.89 µM] from Portunus pelagicus. These findings underscore the therapeutic potential of marine compounds as BACE1 inhibitors for AD. However, further research is needed to explore their bioavailability and clinical efficacy for practical application in preventing and treating Alzheimer’s Disease.
Composition and Structure of Trees and Saplings in the Catchment Area of PLTA PT. Kerinci Merangin Hydro, Jambi Fadhlan, Adli; Chairul, Chairul; Solfiyeni; Muchtar, Erizal
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.v24i4.7548

Abstract

In the management of the catchment area, vegetation plays a crucial role in regulating the hydrological cycle of the ecosystem. However, the construction of dams for hydropower plants and the lack of management of the surrounding area pose a serious threat to forest deforestation. This study aimed to determine the composition and structure of tree stands and tree saplings in the catchment area of PT Kerinci Merangin Hydro Power Plant, Jambi. This method uses a field survey by conducting vegetation analysis on 20 m x 50 m sub-plots with a size of 10 m x 10 m and 5 m x 5 m for trees and saplings. Based on the results, 21 families, 31 genera, 36 species, and 54 individuals were found in the tree strata with Lauraceae as the co-dominant family with a percentage of 12.96%, while the composition of sapling strata plant vegetation found 17 families, 23 genera, 25 species, and 33 individuals with the co-dominant family in the Sapindaceae family with a percentage of 15.15%. Microcos sp. species has the highest INP of 28.80% for tree strata and Dimocarpus sp. for sapling strata at 28.39%. The diversity index was high in the tree stratum at 3.43 and sapling at 3.13. This study can help determine strategies for implementing soil and water conservation, especially forestry regulations, in landscape management.
Fermentation of Soybean Seed Husks (Glycine max L.) using Various Doses of Microbacter Alfaafa-11 (MA-11) and its Effect on Nutrient Content Ahmad, Fandi; Mulyono, Ali Mursyid Wahyu; Windyasmara, Ludfia
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.v24i4.7549

Abstract

Tempeh is the main product, while soybean husk is a solid waste from the tempeh making process. Soybean husk can be used as a substitute feed for whole or partial concentrate to stimulate growth. The purpose of this study was to determine the changes in the nutritional content of fermented soybean husk (FSSH) using Microbacter Alfaafa-11 (MA-11) with various doses. This study used different concentrations of Microbacter Alfaafa-11 (MA-11) to ascertain changes in the nutritional content of fermented soybean husk (FSSH). Utilizing a completely randomized design (CRD), three repetitions of each of the four treatment kinds were made of the methodology. The medication was administered as a series of MA-11 dosages, with the following amounts included: 0% (control), 0.05%, 0.10%, and 0.15%. The dry matter yield of FSSH, crude fiber content, and crude protein content were the variables that were observed. According to the study's findings, using MA-11 could considerably raise the crude protein content of FSSH (P<0.05) and greatly lower its dry matter yield (P<0.05), but it had no significant influence (P>0.05) on the crude fiber content of FSSH. The conclusion is that fermentation of soybean husks (Glycine max L.) using Alfalfa-11 Microbacteria does not have a significant effect on crude fiber content, but has a significant effect on crude protein content and dry matter yield of fermented soybean husks.

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