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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 2,562 Documents
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The Correlation between Iron and Protein Intake in the Hemoglobin Levels of the Faculty of Medicine Students, Unram Cholidah, Rifana; Amalia, Emmy; Danianto, Ario; Purnaning, Dyah; Ananda, Asti
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11382

Abstract

naemia is a global burden disease that mostly occurs in the reproductive age. About 31.2% of women of reproductive age (15-49 years) have anaemia. This condition may affect oxygen transport in the body and interfere with some bodily functions. Several factors may induce anaemia; iron deficiency is one of them. An amount of iron and protein intake may contribute to haemoglobin levels. This study aims to determine the correlation between iron and protein intake and haemoglobin levels among students in the Faculty of Medicine at the University of Mataram. This is an observational analytic study using cross-sectional methods that includes students aged 17-20 years old. Data is taken in May–June 2024 using a spectrophotometer for checking haemoglobin levels. Iron and protein intake were traced by a 24-hour food records questionnaire over 2 days. Results: There are 118 samples with 25.42% male and 74.58% female. Normal mean haemoglobin levels were detected in this study (12.59±0.82). The correlation tests, with the t-test for iron and protein intake, are not significant, with p-values of 0.246 and 0.254, respectively. Also, total protein and iron intake from this study, with an Anova F-test, is not significant, with a p-value of 0.408. The amount of consumption of iron and protein intake is not significant in the hemoglobin levels of Faculty of Medicine Students of the University.
The Effect of Substituting Rice Bran with Fermented Tofu Pulp in The Basal Diet on Broiler Chicken Performance Patty, David Januarius Djawa; Ngaku, Maria Alfonsa; Dea, Agnes Yunita; Meo, Wilisonius Tena
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11408

Abstract

This study aims to determine the effect of substituting rice bran with fermented tofu pulp in the basal diet on the performance of grower phase broiler chickens in Mengeruda Village, Soa District, Ngada Regency. The study used a completely randomized design (CRD) with four treatments and three replicates, namely: P0 (100% basal diet without fermented tofu pulp), P1 (95% basal diet + 5% fermented tofu pulp), P2 (85% basal diet + 15% fermented tofu pulp), and P3 (75% basal diet + 25% fermented tofu pulp), each with three replicates. The population of chickens used in this study was 48, with each treatment consisting of 4 chickens and each treatment consisting of 3 replicates. Thus, 1 treatment required 12 broiler chickens. The research data were statistically analyzed according to RAL (Complete Randomized Design). If there were significant differences, they were followed up with a BNT test. The analysis was performed using SPSS 22.00 software. The parameters observed included feed consumption, weight gain, and feed conversion ratio (FCR). The results showed that the substitution of fermented tofu pulp had a significant effect on broiler chicken performance. Treatment P3 yielded the best results in terms of weight gain and feed conversion efficiency. This improvement in performance was due to better nutrient availability, increased digestibility, and a reduction in anti-nutritional factors.
Diversity of Local Tawangmangu Bananas: Traditional Markets as Learning Resources for High School Biology Yoshia, Selumiel; Hanik, Nur Rokhimah
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11410

Abstract

Biodiversity learning in senior high schools (SMA) is often less than optimal due to a lack of local context. Tawangmangu boasts a diverse range of banana varieties in its traditional markets, which offer potential as a biology learning resource in line with the existing curriculum. This study aims to identify and analyze the diversity of local banana varieties in Tawangamngu Tourist Market and develop biology learning resources for high school biodiversity. Sampling was conducted using a purposive-random method across all market stalls. Morphological identification was conducted systematically, including visual documentation, measurements of quantitative (fruit length, diameter, number of clusters) and qualitative (skin color, fruit shape, flesh texture, aroma) parameters, and interviews with vendors to obtain ethnobotanical information. Data were verified with taxonomic literature and then analyzed through triangulation of morphological observations, ethnobotanical interviews, and literature references. The research identified 17 banana varieties with the AA, AAA, AAB, ABB, and BB genome groups, including Bawen, Raja Bulu, Susu, Cavendish, Raja Sereh, Raja Uli, Raja Mas, Ambon Lumut, Ambon Kuning, Tanduk, Kepok Kuning, Kepok Putih, Mas Kirana, Nangka, Klutuk, and Kembung. Each variety has distinctive morphological characteristics and different uses. The diversity of local bananas at Tawangmangu Tourist Market can be used as an effective learning resource for high school biodiversity materials, bridging theoretical concepts with students' real-world environments, in accordance with the Independent Curriculum framework.
LC–MS-Based Metabolomics and Multivariate Analysis for Detecting Herbal Adulteration: A Global Literature Review Kharisma, Ayu Dara
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11412

Abstract

Herbal medicines are widely used worldwide, yet the risk of adulteration poses a serious challenge to their quality, safety, and efficacy. This review aims to summarize the state-of-the-art applications of liquid chromatography–mass spectrometry (LC–MS)-based metabolomics combined with multivariate analysis for detecting adulteration in medicinal plants. Relevant studies published between 2015 and 2025 were retrieved from Scopus and Google Scholar using keywords such as “LC–MS,” “metabolomics,” “herbal adulteration,” and “multivariate analysis.” The review highlights the workflow of untargeted and targeted metabolomics, data preprocessing pipelines, and commonly used multivariate statistical models such as principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA). Case studies on Panax ginseng, Echinacea spp., Curcuma longa, and other herbal species illustrate the capability of LC–MS metabolomics to differentiate authentic from adulterated samples. Challenges, including data standardization, metabolite annotation, and overfitting in chemometrics, are also discussed. This review underscores the critical role of LC–MS metabolomics as a robust and reproducible tool for herbal authentication and provides perspectives for improving regulatory frameworks and quality control in the global herbal medicine industry.
Changesin Carbon to Nitrogen Ratio (C/N) in Peatlands of Pontianakas Influenced by Land Management Duration Alhaddad, Abdulmujib
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11434

Abstract

Peatland farmers in Pontianak have traditionally applied combustion ash and organic matter to increase soil pH and nutrient availability, thereby enhancing crop productivity. Poultry manure is essential for providing essential macro- and micronutrients. Although changes in peat soil properties due to agricultural use are known, the specific attributes affected and the magnitude of these changes remain poorly documented. This study aimed to: (1) determine changes in the carbon-to-nitrogen (C/N) ratio in peat soils cultivated under different land management practices, and (2) assess temporal changes in the C/N ratio associated with different cultivation durations. The study employed a direct survey method. Results showed that differences in peat soil characteristics between managed and unmanaged land were primarily evident in the 0–20 cm and 20–40 cm layers. Changes in the C/N ratio were caused by intensive management practices involving large amounts of combustion ash, fish waste, shrimp shells, lime, urea, and KCl. In general, management duration did not significantly affect the C/N ratio or other chemical properties, except for KED and base saturation. At depths of 40–80 cm, the management effect is negligible, indicating that topsoil interventions have only limited impact on deeper layers. The relative stability of nutrient status in Pontianak's peatlands, despite prolonged intensive inputs, demonstrates the resilience of peat soil fertility. Changes in land suitability characteristics are primarily driven by management practices rather than cultivation duration.
The Relationship Between Personal Hygiene, Knowledge Level, and Occupancy Density with the Incidence of Pediculosis Capitis in Children Abhari, Ghefira Nurringganis; Azmi, Fahriana; Muhajir, Alfian; Mulianingsih, Wiwin
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11465

Abstract

Pediculus humanus capitis lives by drawing blood from the scalp of individuals, leading to discomfort and itching. Inadequate personal cleanliness, notably among learners in Islamic boarding institutions, such as infrequently washing their hair or neglecting general hygiene, may heighten the chances of encountering this issue. This research seeks to explore the connection between personal cleanliness, awareness levels, and room occupancy density with the occurrence of Pediculosis Capitis in junior high students at the Darul Mubarok NW Yasnuhu Pringgabaya Islamic Boarding School. The research utilizes a quantitative strategy employing an analytical observational method along with a cross-sectional study framework. Furthermore, the sampling technique includes a total of 79 children, following specified inclusion and exclusion criteria. The data were evaluated both univariately and bivariately through the Chi-Square test. Findings from the study indicated that the majority of participants were male, mainly in the 7th grade, and most were in their early teenage years. The number of children with pediculosis capitis was higher (62.0%), respondents with poor personal hygiene were higher (54.4%), most respondents still had poor knowledge, and the majority of students lived in crowded rooms (93.7%). The results of the chi-square test revealed a p-value of 0.001 (p < 0.05), suggesting there is an important connection between personal cleanliness and the occurrence of pediculosis capitis. The final statement is that personal cleanliness and awareness levels are strongly linked to the occurrence of pediculosis capitis, while there is no connection between crowding in rooms and the occurrence of pediculosis capitis.
Literature Review: The Potential of Soft Coral Lobophytum sp. as a Source of Pharmaceutical Ingredients Purnomo, Indra; Lisnasari, Baiq Risky Wahyu; Ulya, Tuhfatul; Maulidya, Selvira Anandia Intan; Budastra, Wayan Cintya Ganes
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11469

Abstract

Lobophytum sp. is a soft coral found in Indonesian waters, mainly distributed on coral reef slopes. Lobophytum sp. contains various terpenoid compounds, including sesquiterpenes and terpenoid glycosides, which have a variety of biological activities. This literature review examines the pharmacological potential of Lobophytum sp. based on ten studies reporting its pharmacological activities, such as antibacterial, antimicrobial, hepatoprotective, anti-arthritic, antioxidant, anti-inflammatory, antimalarial, and neuroprotective properties. The diterpene cembranoids in Lobophytum sp. show potential as candidate active substances for the development of pharmaceutical products through various in vitro and in vivo studies. The antioxidant activity of cembranoids has the potential to be developed as an anti-aging agent. In addition, its anti-inflammatory, antibacterial, and cytotoxic activities can be developed in the form of topical preparations. However, the development of Lobophytum sp. As a source of active ingredients still faces various challenges, especially the limited isolation of cembranoids, which requires a biotechnological approach.
The Relationship Between Nutritional Status and Scabies Symptoms in the Kupang City Sports Talent School (SKO) Dormitory Geong, Jonathan Azis Hussein; Hutasoit, Regina M.; Adang, Gottfrieda P. Taeng-Ob; Wungouw, Herman P. L.
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11472

Abstract

Nutritional status assessment was conducted using two approaches: Body Mass Index (BMI) measurement as a non-invasive method, and hemoglobin (Hb) level examination as an invasive method. This study aimed to determine the relationship between scabies and nutritional status measured using BMI and Hb in SKO boarding school students in Kupang City. The study was an observational analytic cross-sectional design with a simple sampling technique. The research group included 144 individuals, and the sample size was determined through simple random sampling using the Slovin formula, leading to 59 participants. The chi-square statistical test was applied in this research to examine the connection between nutritional status and the occurrence of scabies. Results will be relevant if the p-value is less than 0.05. Scabies symptoms appeared in 15 participants (25.4%), while the bivariate analysis indicated no meaningful connection between nutritional status and scabies symptoms. Nutritional status evaluated through Body Mass Index (BMI) did not demonstrate a significant link with scabies symptoms, with the chi-square result yielding a value of (p = 0.814). Most participants had a normal BMI. In addition, nutritional status assessed by hemoglobin (Hb) levels also exhibited no noteworthy correlation with scabies symptoms, with a chi-square test giving a p-value of 0.531. The majority of participants had normal Hb levels. This leads to the conclusion that nutritional status is not related to scabies symptoms.
The Effect of Ethylene Gas Exposure of Tomatoes (Solanum lycopersicum) on the Morphological Growth of Green Beans (Vigna radiata) Septianingrum, Beatrix Putri; Khairurohmah, Dinda; Kurniyati, Intan
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11475

Abstract

Ethylene is one of the natural growth hormones produced by fruits such as tomatoes, and is known to have an important role in regulating various plant physiological processes. This research was conducted to examine the effect of natural ethylene gas from tomatoes on the early growth of green bean plants (Vigna radiata). The research used a simple experimental method with two treatment groups, namely the group of plants exposed to ethylene gas from tomatoes and the control group without ethylene exposure. The observed parameters include stem height and root length in a certain period of time. Observation results show that exposure to ethylene affects the growth of green bean plants, especially in increasing the height of the stem which is more significant than control plants. Based on the findings, it can be concluded that ethylene gas produced naturally by tomatoes has the potential to accelerate the early growth of green bean plants.
The Relationship Between the Use of Insecticide-Treated Mosquito Nets and Malaria Incidence in Gaura Village, West Lamboya District, West Sumba Regency Sandewi, Aliefa Sansabila Putri; Koamesah, S. M. J.; Deo, Dwita A.; Tunggal, Deif
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
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.v26i1.11494

Abstract

Malaria remains a major public health problem in Indonesia, particularly in eastern regions such as East Nusa Tenggara. Gaura Village in West Lamboya District has the highest malaria incidence in West Sumba Regency. Insecticide-treated nets (ITNs) are a key prevention strategy, but their effectiveness depends on consistent use, net condition, and adequate household coverage. Objective to assess the relationship between ITN usage and malaria occurrence among residents of Gaura Village. Methods: This cross-sectional study included 252 participants. Data on malaria history, ITN use frequency, net condition, duration of use, washing frequency, and household coverage were collected through questionnaires and home observations. Statistical analyses included the Chi-square test and logistic regression. Results: Consistent ITN use was significantly associated with lower malaria incidence (p < 0.05). Net condition, bedroom coverage, and household member coverage also showed significant relationships with malaria occurrence. Multivariate analysis indicated that ITN usage remained the most influential variable. ITN usage is significantly associated with malaria incidence in Gaura Village. Ensuring consistent use, maintaining good net condition, and improving household coverage may strengthen malaria prevention efforts.

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