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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
 191   192   193   194   195 
The Effect of NPK Fertilizer and Banana Peel Liquid Organic Fertilizer on The Growth of Red Chili (Capsicum annum L) Desi, Petronela; Raksun, Ahmad; Mertha, I Gde; Sedijani, Prapti
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.9243

Abstract

Chili plants have a high selling value when the supply of goods decreases due to late harvests in red chili centers in various regions. This can trigger Indonesian farmers to cultivate more quality chili plants because they have high economic value. This research aims to determine the effect of NPK fertilizer and banana peel liquid organic fertilizer on the growth of red chili (Capsicum annum L) and to assess the impact of the combination of NPK fertilizer and banana peel liquid organic fertilizer on red chili. This study employed an experimental approach, with data collected by assessing plant growth. NPK fertilizer had no discernible effect on the height or quantity of leaves on red chili peppers, but it did have an impact on leaf area, fresh weight, and dry weight. Red chili pepper plants' height, leaf count, leaf area, fresh weight, and dried weight were all unaffected by the application of a liquid organic fertilizer made from banana peels. Red chili pepper plant height and leaf count were not significantly impacted by the combination of NPK fertilizer and liquid organic fertilizer generated from banana peels; but, leaf area, fresh weight, and dry weight were.
Analysis of Waste Generation in the Gili Trawangan Tourism Area, North Lombok Regency Wulandari, Titin Juniar; Suripto, Suripto; Ernawati, Ernawati
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): 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.v25i1.9252

Abstract

Gili Trawangan is one of the small island beach tourist destinations on Lombok Island which is famous throughout the world. The beach is used by visitors to enjoy the sunset and sunrise, horse riding, cycling, diving, snorkeling, and canoeing. The problem experienced is that the characteristics of visitors that influence waste generation in the tourist area are not yet known. This study aims to identify visitor characteristics, determine the amount of waste generated and its composition by visitors in the Gili Trawangan beach tourism area.  Waste data collection was carried out using direct observation techniques, interviews and document tracing. The results show that waste generation in Gili Trawangan was 0.06 kg/person/day during the high season and 0.05  kg/person/day during the low season. The amount of waste generated by visitors for vocational reasons during the peak season and for healing reasons during the low season was higher than that generated by visitors for other reasons such as filling holidays, tours and business. Visitors with various activities such as snorkeling and playing on the beach produce the highest average amount of waste compared to the amount of waste produced by visitors with other activities such as enjoying the beach, relaxing, walking, working, observing, and taking photos. The components of waste produced by visitors were dominated by kitchen waste both during the high season (52.75%) and the low season (69.91%). Other waste components that are also produced are paper, plastic film, solid plastic, metal and composites.
Analysis of Generation and Composition of Domestic Solid Waste at the dr. R. Soedjono Regional General Hospital, East Lombok Safitri, Rinjani Yulia; Suripto, Suripto; Dujana, Lalu Muhammad Aby
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.9261

Abstract

The dr. R. Soedjono Regional General Hospital Selong East Lombok is a government-owned health service facility that has experienced an increase in accreditation status to a class B hospital. The calculation of waste generation and waste sorting at the hospital has never been carried out so that the waste management team cannot determine a waste management strategy. Therefore, it is necessary to conduct research to analyze waste generation at the dr. R. Soedjono Regional General Hospital, East Lombok. A preliminary survey was conducted to determine the techniques and schedule for collecting waste data and waste producers. Waste data collection was carried out using the load count method every day for eight days. Data collection on the daily number of people producing waste was carried out through document searches. The waste producers in question include employees, medical personnel, patients and visitors. Data were analyzed descriptively to describe waste generation and its composition. The results show that the generation of domestic solid waste at the dr. R. Soedjono Regional General Hospital, East Lombok, which was observed every day for eight days was 0.3705 kg/person/day. Waste generation fluctuates every day of the week and the highest waste generation occurred on Sundays (holidays), where the number of people producing waste was dominated by patient visitors. Domestic solid waste in the hospital is dominated by plastic waste (36%), leftover food and leaves (31%), paper (15%) and other (11%). Others include diapers, sanitary napkins and bandages. Other waste components that were also found but with a much smaller weight percentage were wood, fabric or textile, metal and glass.
Insect Species Diversity in Oil Palm Plantation Area Wonosari Sub-District Boalemo District Mursali, Intan Zulfatadila; Lamangantjo, Chairunnisah J.; Baderan, Dewi Wahyuni K.; Hamidun, Marini Susanti; Zakaria, Zuliyanto
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-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.v25i3.9262

Abstract

Each habitat has a drastically varied species composition as a result of oil palm plantations filtering out natural forest wildlife, leaving only a limited range of taxa to survive. Among the animal groups with the greatest diversity are insects. The purpose of this study was to determine the diversity of flying insects found in the oil palm plantation area of Wonosari District, Boalemo Regency. The method used in this research is exploration with three observation stations. Station I is adjacent to residential areas, station II is in the oil palm plantation area and station III is adjacent to residents' plantations. Sampling using the trap trap technique using the sweeping net method (insect net) which is commonly used for collecting flying insects. Sample identification in the Biology laboratory, Faculty of Mathematics and Natural Sciences, Gorontalo State University. The data obtained were analyzed descriptively. The results in this study obtained 12 species included in 5 orders and 8 families, namely: Family Nymphalidae (Faunis phaon pan, Amathusia phidippus, Melanitis leda). Pieridae family (Leptosia nina), Hesperiidae family (Platylesches robustus). Family Vespidae (Polistes fuscatus), Family Pyrgomorphidae (Atractomorpha crenulata), Family Acrididae (Trimerotropis pallidipennis, Oxya japonica, Chorthippus albomarginatus), Family Cerambycidae (Glenea albolineata) and Family Libellulidae (Neurothemis terminata) with a total of 24 individuals. Of all the flying insects found, the Diversity Index was 2.362, which indicates that diversity is classified as moderate.
Analysis of Ferritin Levels as a Risk Factor for Anemia in Adolescent Girls on the West Lombok Coast Lestarini, Ima Arum; Ekawati, Ardiana; Irawati, Deasy; Wedayani, Anak Agung Ayu Niti; Putra, Hendra Susana
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): 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.v25i1.9269

Abstract

Iron deficiency anemia (ADB) is a nutritional disorder that often occurs, especially in adolescent girls, due to increased nutrient requirements during growth and menstruation. Assessing ferritin levels is an important step in determining the status of iron stores in the body and identifying individuals at risk of iron deficiency anemia, especially in resource-constrained environments such as coastal areas. This study aims to determine the prevalence of anemia and iron deficiency in adolescent girls in the coastal areas of Lombok, Indonesia and analyze the relationship between ferritin levels as a risk factor for the incidence of iron deficiency anemia. The design of this study was a cross-sectional study conducted on 101 young women aged 15 - 19 years in the coastal areas of West Lombok. Ferritin levels were measured to determine iron deficiency status (< 15 ng/ml) and hemoglobin levels were used to determine anemia in adolescent girls (HB < 12 g/dl). The Chi-Squre and relative risk tests were used for statistical analysis of the relationship and risk between iron deficiency and the incidence of anemia. The results of the study found that the prevalence of iron deficiency was 40 (39.6%) and anemia was 21 (20.79%). Of the respondents who experienced anemia, 13 (61.9%) were iron deficiency anemia. There was a significant association between anemia and iron deficiency (p = 0.004) and an odd ratio value of 4.154 was obtained, indicating that adolescent girls with iron deficiency (low ferritin levels) had a 4.154 times greater risk of developing anemia compared to adolescent girls with normal ferritin levels.
The Effect of Commercial Cow's Milk on the Quality of Kefir Fermentation Kurnia, Nani; Mu'nisa, Andi; Amboupe, Dewi Sartika
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.9280

Abstract

Kefir is a dairy product derived from the fermentation of milk by kefir grains. Kefir grains are natural starter cultures in the form of small spheres containing various microorganisms, including bacteria and fungi. This study aims to evaluate the effect of milk medium type and initial weight of kefir grains on four fermentation parameters: curd, whey, pH, and kefir grain weight gain. The materials used in this study were natural starter cultures in the form of kefir grains and packaged cow's milk from various brands (A, B, D, F, and G) with differing nutritional compositions, as well as bulk cow's milk (C and E). The kefir production process began by mixing 250 ml of commercial cow's milk from various brands with kefir grains. The mass of kefir grains used was varied at 10 grams and 12 grams. Data analysis was performed using the Two-Way ANOVA method and Duncan's Multiple Range Test (DMRT). Based on the results of the Two-Way ANOVA test, it was found that the type of milk medium had a significant effect on three main parameters, namely curd (p-value = 0.000), whey (p-value = 0.000), and pH (p-value = 0.021), but did not have a significant effect on the increase in kefir grains (p-value = 0.676). Conversely, the initial weight of kefir grains only significantly affected kefir seed growth (p = 0.003) but not the other parameters. Packaged milk with higher nutritional content produces higher curds and lower whey, thereby potentially producing higher quality kefir. These results indicate that the type and nutritional content of milk affect the quality of kefir fermentation.
The Potential of Herbal Agents for Hair Growth: A Mechanism-Based Review of Hair Follicle Stimulation Budastra, Wayan Cintya Ganes
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.9305

Abstract

Hair loss is a common condition that can negatively impact an individual’s psychological well-being and overall quality of life. Recent studies have shown that secondary metabolites derived from herbal plants possess potential as natural agents to stimulate hair growth. This review aims to provide a scientific basis for the development of herbal-based hair growth formulations in the future. The literature reviewed was sourced from major scientific databases such as PubMed, Scopus, ScienceDirect, and Google Scholar, with a focus on publications from the last ten years. This review discusses various groups of bioactive compounds including flavonoids, alkaloids, phenolics, polyphenols, phenylpropanoids, and saponins that play a role in follicle regeneration and alopecia prevention. The pharmacological effects of these compounds occur through several mechanisms, such as prolonging the anagen phase of the hair cycle, inhibiting the enzyme 5-α-reductase, enhancing blood circulation via vasodilation, and exhibiting strong antioxidant and anti-inflammatory activities. Findings from in vitro and in vivo studies indicate that these natural compounds show promise in promoting hair growth, although further clinical trials are needed to confirm their efficacy.
Garlic as an Antibacterial Against Isolates Resistant to Antibiotics Ciprofloxacin, Gentamicin, Tetracycline Rahmaniar, Reina; Dyah Widhowati
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.9323

Abstract

The purpose of this study was to determine the effectiveness of crushed garlic at concentrations of 2%, 4%, and 6% against isolates of Staphylococcus aureus and Escherichia coli bacteria that have been tested for antibiotic sensitivity to Ciprofloxacin 5 µg, Gentamicin 10 µg, and Tetracycline 30 µg. The bacterial isolates were obtained from nasal mucosa samples from dogs and wound swabs from birds, chicken liver samples, chicken meat, chicken intestines, and beef. Isolates that were isolated and Identification of bacteria have confirmed phenotypically were then tested for sensitivity to antibiotics, ciprofloxacin 5 µg, gentamicin 10 µg, tetracycline 30 µg. Furthermore, the effectiveness of garlic as an antibacterial was tested using the disk diffusion method. Garlic was crushed and made at 2%, 4%, and 6% concentrations. The results obtained were presented in table form and presented descriptively. E. coli bacteria from chicken intestines are resistant to antibiotics ciprofloxacin 5 µg, gentamicin 10 µg, tetracycline 30 µg, while E. coli isolates from beef are still sensitive to antibiotics, ciprofloxacin 5 µg, gentamicin 10 µg, tetracycline 30 µg. S. aureus from bird wounds is resistant to gentamicin 10 µg, and isolates from dog nasal mucosa swabs are resistant to tetracycline 30 µg. Pureed garlic has good antibacterial activity at concentrations of 2%, 4%, and 6% against Gram-positive and Gram-negative bacterial isolates, both those that are resistant to antibiotics and isolates that are sensitive to antibiotics, ciprofloxacin 5 µg, gentamicin 10 µg, tetracycline 30 µg.
Difference in Effectiveness Gel Dosage form Green Papaya (Carica papaya L.) Skin Ethanol Extract and Gel Dosage form Green Papaya Seed Against Cutibacterium acnes Bacteria Diana, Vivi Eulis; Abadi, Hafizhatul; Rumanti, Ruth Mayana; Andry, Muhammad
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.9330

Abstract

Many things can cause acne, including stress, fatty foods, inappropriate or unsuitable makeup, and pollution. Cosmetics made from plants are safer to use. Papaya skin and seeds (Carica papaya L.) have antibacterial properties in the form of alkaloids, tannins, steroids, saponins, and flavonoids. This study aims to determine the comparison of the antibacterial power of young papaya skin ethanol extract gel and young papaya seed ethanol extract gel against Cutibacterium acnes bacteria. The research method is experimental with various formulas consisting of F0 (0%), F1 (11%), F2 (12%), and F3 (13%). The results of the study obtained antibacterial gel preparations from the three concentrations showed that the organoleptic test of the young papaya fruit skin ethanol extract gel preparation was light brown, blackish brown, dark blackish brown. The homogeneity test was homogeneous. The pH test was 5.9, 6.5, 7.0, and the seed ethanol extract gel preparation was light brown, dark brown, thick dark brown. The homogeneity test was homogeneous. Test pH 5.0, 5.6, 5.5, 5.1. The conclusion of this study is that the antibacterial effectiveness of young papaya fruit skin ethanol extract gel is greater than young papaya fruit seed ethanol extract gel at a concentration of 13% against Cutibacterium acnes bacteria.
Identification of Pineapple Fruit Rot Disease in Kubu Raya, West Borneo Apindiati, Rita Kurnia; Hendarti, Indri; Rizal, Muhammad; Tarigasa, Odilo
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.9331

Abstract

Pineapple productivity in West Borneo ranks second after bananas. One of the obstacles in pineapple cultivation is the presence of diseases that attack pineapple plantations. Symptoms of pineapple plant disease are an indication that the plant is attacked by pathogens. This study aims to identify pathogens that cause rot symptoms in pineapple fruit. The methods used in this study include surveys, survey evaluations, observation of symptoms in pineapple plantations, and laboratory tests of pathogens that cause pineapple fruit rot disease in Kubu Raya, West Borneo. Sampling was carried out by purposive sampling on pineapples with rot symptoms. Based on the results of the study obtained, it shows that the symptoms of pineapple fruit rot disease are characterized by the presence of soft rot that is blackish brown in color, rotten inside and emits a distinctive odor. Pineapple fruit rot is caused by the pathogens Curvularia sp. and Fusarium sp.

Page 193 of 252 | Total Record : 2520

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