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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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Antibacterial Activity of Centella asiatica N-Hexane Fraction against Pseudomonas aeruginosa Clinical Isolates Larasati, Alifia Amanda; Rosyunita; Fathul Djannah
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.v24i4.7724

Abstract

Pseudomonas aeruginosa is a gram-negative bacterium that causes infections with high morbidity and mortality rates. Currently, treatment of P. aeruginosa infections is a major challenge due to its ability to resist various available antibiotics. Among the herbal plants with potential as a novel antibacterial agent is Centella asiatica. Nevertheless, the n-hexane fraction has never been used to investigate the antibacterial activity of C. asiatica as a herbal plant. This study aims to determine the antibacterial activity of the n-hexane fraction of C. asiatica by sokhletation extraction method against clinical isolates of P. aeruginosa and determine the bioactive compounds contained. The method used was disc diffusion (Kirby-Bauer test) with concentrations of 5,000 ppm, 7,500 ppm, and 10,000 ppm, positive control using 10 μg colistin and negative control using 10% DMSO. The results showed that the three test concentrations of C. asiatica n-hexane fraction formed a clear zone of 2.50 mm; 4.77 mm, and 2.43 mm respectively and contained flavonoid and steroid compounds. Statistically, Kruskal-Wallis test showed that there was a significant effect of changing the concentration of n-hexane fraction on the diameter of the inhibition zone. However, Post hoc test using Mann-Whitney showed that the three concentration series had significant differences in inhibition against the positive control. Overall, the n-hexane fraction of C. asiatica had lower antibacterial activity compared to the positive control of colistin. In future studies, it is necessary to test antibacterial activity using a more varied concentration series and other antibacterial activity test methods.
Choledocholithiasis: A Literature Review Rizky, Muhammad Ilham; Rabbani, Muhammad Afif; Madani, Ayda Fitri; Ramadhani, Dhea Asty; Maolidi, Juan; Putra, Anak Agung Gede Agung Difa Agusta Pramana; Dwiputri, Adelya Rahma
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.v24i4.7727

Abstract

leading to various complications such as cholangitis, pancreatitis, and obstructive jaundice. The prevalence of this condition ranges from 1-15% in patients with gallstones. Common symptoms include abdominal pain, indigestion, and jaundice. The objective of this study is to review the current literature on choledocholithiasis, including its definition, epidemiology, etiology, risk factors, pathophysiology, and treatment options. The study employed a narrative literature review method, collecting relevant articles from databases such as PubMed, Google Scholar, and ProQuest. The review highlights the primary mechanisms of gallstone formation, including cholesterol supersaturation and bile stasis, as well as factors like obesity, aging, and pregnancy that increase the risk of developing choledocholithiasis. Findings suggest that management of choledocholithiasis varies from non-invasive approaches, such as medical therapy, to surgical interventions like endoscopic retrograde cholangiopancreatography (ERCP) or cholecystectomy. The study concludes that early diagnosis and appropriate treatment are critical for preventing severe complications. Regular monitoring and preventive strategies are essential for patients at risk of developing choledocholithiasis.
Analysis of the Effects Aquaponic Cultivation Systems on the Growth of Water Spinach (Ipomoea aquatica) and Pak Choy (Brassica rapa L.) Indriani, Yeni; Ulaan , Magdalin
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.v24i4.7730

Abstract

The degradation of land and water quality in aquaculture has driven the adoption of aquaponics technology as an efficient solution. Aquaponics integrates fish farming and hydroponics, utilizing fish waste as a nutrient source for plants. This study aims to analyze the growth of water spinach (Ipomoea aquatica) and pak choy (Brassica rapa L.), as well as water quality within an aquaponic system using Nile tilapia (Oreochromis niloticus). The research employed a completely randomized design with three treatments: A) aquaponics (fish and plants), B) hydroponics (plants), and C) Nile tilapia pond. The results indicate no significant differences in plant growth regarding height, which ranged from 16.2 cm to 35 cm, and leaf count, which varied from 7.2 to 18.6, between the aquaponics and hydroponics systems. The water quality parameters measured in the aquaponics system included temperature (°C), dissolved oxygen (DO), pH, and concentrations of nitrate (ppm), nitrite (ppm), and ammonia (ppm). All parameters met cultivation standards, except for ammonia levels in treatment C, which registered at 0.25 ppm due to the absence of plants to absorb it. In conclusion, aquaponics effectively supports the growth of both plants and fish while using water more efficiently. Further research is recommended to optimize the combination of fish and plants, along with other environmental factors.
Complex Regional Pain Syndrome (CPRS): A Literature Review Amanullah, Mohammad Sany Rosafi; Ini Hidayat Makbul; Kadek Nandita Nugraha; Afif Farras; Baiq Inna Dwi Hardyningrat; Devi Chandra Kirana; Najla Aulia Yahya; Salsabila Dinda Nuril Ishlahi; Siti Nurhaliza; Shofia Kadarisma; Yunita Hapsari
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.v24i4.7731

Abstract

CRPS (Complex Regional Pain Syndrome) occurs due to tissue trauma, leading to inflammation, activation of peripheral nociceptors, and increased regulation of neuronal processes. The etiology of CRPS is not fully understood, but it is believed to be related to an inappropriate inflammatory response and dysfunction in the central and peripheral nervous systems. The purpose of this article is to provide additional information regarding CRPS, thereby facilitating more accurate diagnosis and effective treatment. The research method used is a literature review, which discusses the definition, etiology, epidemiology, pathophysiology, diagnosis, and management of Complex Regional Pain Syndrome (CRPS), drawing on sources from PubMed, ProQuest, ScienceDirect, and Google Scholar. Future research is essential to deepen the understanding of this syndrome and create opportunities for more effective prevention and treatment of CRPS.
Effect of NPK Fertilizer and Burning Rice Husk Planting Media on the Growth of Spinach (Amaranthus tricolor L.) Katrina, Katrina; Raksun, Ahmad; Mertha, I Gde
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.v24i4.7735

Abstract

Applying fertilizer can increase spinach productivity. Fertilization is necessary because the nutrients in the soil can be reduced as a result of being absorbed by plants continuously. For plants to thrive, there must be an adequate supply of nutrients. The purpose of this study is to ascertain the impact of roasted rice husk and NPK fertilizer, as well as the ideal ratio of the two to promote spinach development. A fully randomized design comprising two components, five treatment levels, and three replications was employed in this investigation. The plant height, number of leaves, leaf area, wet weight, and dry weight were all significantly impacted by the NPK fertilizer element, according to the Anova data. At 18 days after planting, the factor of burnt rice husk significantly affected plant height; however, at 35 days after planting, it had no significant influence. The interaction of NPK fertilizer and roasted rice husk had no significant effect on all observation parameters. The best treatment on plant height, leaf area, and wet weight was the dose of 200 g of roasted rice husk and 1.6 g NPK fertilizer, the best treatment on the number of leaves was the dose of 50 g of roasted rice husk and 1.6 g NPK fertilizer, the best treatment on dry weight was the dose of 100 g of roasted rice husk and 1.6 g NPK fertilizer.
Identification of Black Soldier Fly (Hermetia illucens) Maggot Growth Using Different Growth Media Ulaan, Magdalin; Indriani, Yeni
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.v24i4.7738

Abstract

One alternative feed that meets the requirements as a source of protein is the larvae of the black soldier fly (Hermetia illucens or called maggot). Maggot Black Soldier Fly (BSF) is the larva of a type of black soldier fly that is able to process various types of organic waste quickly, easily reproduce, and has a high protein of 61.42%.The purpose of this study was to determine which type of growth media is suitable for optimal maggot growth. This study used a complete randomized design (CRD) with 3 treatments and three replications. The treatments in this study were Media A (Tofu pulp + 5 ml EM4 + 500 ml), Media B (Coconut pulp + 5 ml EM4 + 500 ml), Media C (Fine rice bran + 5 ml EM4 + 500 ml). Data were analyzed using analysis of variance (ANOVA) with a real level of 0.05. The results showed that growing media with media treatment C (Fine rice bran + 5 ml EM4 + 500 ml) gave significant results (P <0.05) on maggot weight with an average value of 29.3 grams and the highest maggot length growth with an average value of 1.7 cm during 14 days of maintenance. Thus, different growing media have a significant effect on the growth of Black Soldier Fly Maggot (Hermetia illucens).
The Effect of Maggot Black Soldier Fly (Hermetia illucens) on Liquid Organic Fertilizer Production Dewi, Desak Made Devika Ratna; Farista, Baiq; Virgota, Arben; Kamali, Siti Raudhatul
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.v24i4.7742

Abstract

The problem of organic waste in the environment can be overcome by using organic waste bioconversion technology using maggots. This technology produces a by-product in the form of leachate that can be used as Liquid Organic Fertilizer (POC). On the other hand, research on the effect of maggots on the quality and quantity of POC produced has not been widely studied. This study aims to 1). determine the quality of POC based on the concentration of N, P and K; 2). Determine the quantity of POC based on the volume of POC. The method used is an experimental method with the treatment of organic waste conversion using maggots (M1) and without maggots (M0). Each treatment was repeated 4 times. Data were analyzed using the t-independent test with the help of the SPSS version 22 application. The time of this research was carried out in May 2024 - July 2024. The location of the research was carried out at the Lingsar Regional Integrated Waste Processing Site (TPSTR) and the Soil Chemistry Laboratory of the University of Mataram. The results of this study indicate that the quality of liquid organic fertilizer (POC) in M1 is better than M0. The content of N (nitrogen), P (phosphorus) and K (potassium) in M1 were 0.14%, 0.11%, and 0.17% respectively, while M0 was 0.11%, 0.06%, and 0.09% respectively. The t-independent test showed that there was a significant difference between M0 and M1. The content of N, P and K in this study was still below the standard quality values ​​based on the Decree of the Minister of Agriculture of the Republic of Indonesia Number 261/KPTS/SR.310/M/4/2019 concerning Minimum Technical Requirements for Organic Fertilizers, Biological Fertilizers and Soil Improvers.
Seagrass Meadow Condition Assessment: A Case Study of Seagrass Meadows in Pulau Banyak District, Aceh Singkil Lisdayanti, Eka; Najmi, Nurul; Muktaridha, Muktaridha
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.v24i4.7744

Abstract

Seagrass beds are one of the coastal ecosystems that have an important role in maintaining the balance of the marine environment. Indonesia is known for its rich seagrass species but not much has been reported, especially in Aceh waters.This study aims to identify and analyse the distribution and condition of seagrass health through the percentage cover and dominance of seagrass species in Pulau Banyak District, Aceh Singkil Regency. Seagrass research was conducted in July 2024 at 3 different stations, namely Nago, Matahari and Panjang Islands. The research method used was the method of drawing a 100 m long line transect, with each station being repeated 3 times at 50 m, so that the seagrass area observed was 100 m2. Differences in the condition of the aquatic environment showed differences in the presence of seagrass species found. A total of 4 seagrass species were recorded in this study, namely Thalassia hemprichii, Enhalus acoroides, Cymodocea rotundata and Halophila ovalis. There is a difference in the number of seagrass species found in the 2015 and 2023 time periods, the 2024 survey recorded 4 species from the previous 5 seagrass species. The highest percentage of seagrass cover was found on Nago, Matahari and Panjang Islands with percentages of 19.98%, 3.69% and 1.23% respectively. The highest overall seagrass species cover was T. hemprichii at 60.268%, while the lowest seagrass species was H. ovalis at 3.534%. Based on the results of the analysis of the percentage of seagrass cover of the entire research station, it is concluded that seagrass in the waters of Pulau Banyak is included in the category of sparse cover, with poor condition status (≤29.9).
Antibacterial Activity Test of White Honey from Sumbawa NTB Againts Staphylococcus epidermidis Vaidika, I Komang Satya; Wardoyos, Eustachius Hagni; Rahim, Adelia Riezka
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.v24i4.7750

Abstract

Staphylococcus epidermidis is the most common bacteria found on human skin that causes acne and is a coagulase-negative Staphylococcus species (CoNS). Resistance to methicillin is widespread, especially in Staphylococcus epidermidis bacteria or often called MRSE and is widespread globally ranging from 75-90%. Regarding antibiotic resistance, it is important to do research to find new alternatives to this problem. One of the natural antibiotics that can be used is honey which has benefits as an antibacterial because it has three systems that play a role in inhibiting bacterial growth, namely osmotic pressure, acidity and inhibine. The purpose of this study was to analyze the antibacterial effect of Sumbawa white honey on Staphylococcus epidermidis bacteria. The method used in this study was an analytical laboratory experiment with a Randomized Controlled Trial (RCT) type of post test only design. The method of making honey using disc diffusion was carried out 5 times at concentrations of 25%, 75%, 100%, positive chloramphenicol control and negative DMSO control. The results of the antibacterial test can be seen from the formation of the diameter of the inhibition zone on the disc paper. The results of the study obtained that at a concentration of 25% no inhibition zone could be formed, while in the 75% study an inhibition zone of 2.32 mm was formed and 100% of 6.71%. Based on the results of the antibacterial activity test, it can be concluded that the study on Sumbawa white honey at concentrations of 75% and 100% is included in the resistant/weak category and the activity is not effective in inhibiting the growth of S. epidermidis.
Potential of Ulva lactuca and Sargassum duplicatum as Antihyperglycemic Agents in Type 2 Diabetes Mellitus Aunurrahman, Muhammad Rezky Audia; Putri, Atina Rizki; Ishlahi, Salsabila Dinda Nuril; Putri, Radiah Meilani; Tito I.P.N, Anak Agung Bagus; Rizaldi, Muhammad Hilman; Dewi, Citranggana Prajnya
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.v24i4.7756

Abstract

Type 2 diabetes mellitus (DM) is a metabolic disease that occurs chronically and is characterized by elevated blood glucose levels. Current treatment of type 2 DM is with long-term oral hypoglycemic drug therapy, which is known to have side effects, such as kidney and liver disorders, so there is a need for drugs that have minimal potential side effects such as the use of Ulva lactuca and Sargassum duplicatum from seaweed. This paper will summarize the antihyperglycemic effects of Ulva lactuca and Sargassum duplicatum. The method used by researchers in this research is a literature study writing method that uses literature sources through Google Scholar and several credible websites such as Pubmed with the last 10 years of searches for articles and journals in Indonesian and English. The results of this study indicate that there is antidiabetic content in seaweed with Ulva lactuca and Sargassum duplicatum so that its use can be used as a complementary medicine. Therefore, treatment using seaweed with Ulva lactuca and Sargassum duplicatum has the potential to be developed to become a drug with minimal side effects in the treatment of type 2 DM in Indonesia.

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