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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
 76   77   78   79   80 
Use of NPK Fertilizer for Cultivating Eucheuma spinosum Seaweed at Different Doses on a Laboratory Scale Nur Yatin; Nunik Cokrowati; Fariq Azhar
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i1.5977

Abstract

Seaweed is a low-level plant whose roots, stems and leaves cannot be distinguished from each other and is better known as a thallus. Seaweed is one of the leading fisheries commodities. This study aims to analyze the growth and carrageenan content of Eucheuma spinosum given Nitrogen, Phosphate and Potassium (NPK) fertilizer at different doses. The method used was an experimental method with a completely randomized design (CRD) consisting of 4 treatmentsa are P0 (control), P1 (2 g/l), P2 (2.5 g/l), and P3 (3 g/l). Each treatment was repeated 3 times. Data were analyzed using ANOVA, then if further tests were carried out, the Duncan test was used. The results showed that seaweed E. spinosum which was maintained for 30 days had a survival rate, final weight, final length and carrageenan yield ranging between 16.1% - 50.1%, 3.23 g - 10.13 g respectively, 10 cm - 17.6 cm and 6.75% - 10.86% with the best treatment, namely at a fertilizer dose of 2.5 g/l, while the best carrageenan yield treatment was found in the control treatment. This study concluded that E. spinosum seaweed given different doses had a real effect on survival and final weight. The highest survival rate and final weight were found in the 2.5 g/l dose treatment, namely 50.6% and 10.13 g, and the control treatment gave a higher yield of carrageenan than the other treatments, namely 10.86%.
Fungal Crude Lipase Enzyme Produced Using the SSF (Solid State Fermentation) Method Increases The Washing Test Performance Prapti Sedijani; Nida'an Khovia; Dewa Ayu Citra Rasmi; Kusmiyati
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i1.6046

Abstract

Lipase is an enzyme that commonly used in various industries, including the detergent industry to improve washing performance. Two fungal isolates (Al and Cl) has been reported to be highly active on high pH. This research aims to see the potential of those fungi (crude enzyme) in improving washing performance. Enzymes were produced using the SSF (Solid State Fermentation) method with sugarcane bagasse as a medium. To determine how adding enzymes might affect the effectiveness of washing, studies were conducted. The results show that washing performance increases from 52% (detergent only) to 74% in combination with the crude enzyme. It is concluded that Al has a potential to be involved in biodetergent production. Similar assays with concentrated enzymes are suggested for future studies.
Probiotic Antibacterial Activity Test Of Bali Salak Fruit (Salacca zalacca var Amboinensis) Against Staphylococcus aureus Istri Mas Padmiswari Anak Agung; Nadya Treesna Wulansari
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
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.v23i4.4503

Abstract

One of the sources of natural antioxidants comes from salak fruit (Salacca zalacca). Indonesia has various varieties of salak fruit such as pondoh salak, manggala salak, granulated sugar and balinese salak. Bali salak is one of the local Balinese salak varieties. This study aims to determine the probiotic antibacterial activity test of Balinese salak fruit juice against Staphylococcus aureus. The method used in this study was Completely Randomized (CRD) in laboratory scale experiments (in vitro). Laboratory-scale in vitro research was carried out at the ITEKES Bali Food Engineering and Processing Laboratory and the Agricultural Technology Laboratory at Udayana University which will be carried out between August 2021 and October 2021. Testing for antibacterial activity uses the well diffusion method. NA media containing Staphylococcus aureus isolates. Data analysis used analysis of variance (ANOVA). The results of the study found that Staphylococcus aureus bacteria could be prevented by using a probiotic drink, zalacca juice.
Identification of Stomata Structures in Leaves of The Tradescantia Genus in The Meurandeh Langsa Region M. Ali Akbar; Khairunnisa; Enca Pepayosa; Amanda Lestari; Sahna Maulana Sitakar; Viska Annisa Sabrini; Rauzatul Jannah Mz; Siti Zubaida; Siska Rita Mahyuny
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i1.4657

Abstract

Langsa City is a city located in the province of Nangroe Aceh Darussalam with an area of 262.41 km2 with a population of 165,890 people. Meurandeh Village is one of the villages located in Langsa city, precisely in Langsa Lama. Meurandeh is one of the places that produces plants from the Tradescantia genus. This research aims to identify and differentiate the stomata of three types of plants from the Tradescantia genus. The method used in this research is a qualitative method with observational data collection techniques. The results of this research show that the three types of plants from the Tradescantia genus have three neighboring cells and a tetracytic type of stomata. Of these three types of plants, there are differences in the shape and structure of the stomata.
Phytochemical Screening and Antioxidan Activity of Several Types of Mango Seeds Nurmala Sari; Sujarwati Sujarwati
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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

Abstract

Mango is one type of fruit that is most popular with the public. The use of mangoes is only for the flesh for consumption, while the skin and seeds are discarded, causing organic waste in the environment. This study aims to determine the content of secondary metabolites and antioxidant activity in the seeds of arum manis mango (Mangifera indica Linn.), kweni mango (Mangifera odorata Griff.) and bacang mango (Mangifera foetida Lour.). Mango seed extract was made by maceration method using 70% methanol solvent. The phytochemical test was carried out qualitatively and the antioxidant activity test was carried out using the DPPH (2,2-diphenyl-1- picrihidrazyl) method. The results of the phytochemical tests showed that the methanol extracts from the seeds of arum manis, kweni and bacang mangoes contained the same secondary metabolites, namely alkaloids, flavonoids, triterpenoids, tannins and saponins. Bacang mango seeds have a higher content of secondary metabolites compared to arum manis and kweni mango seeds. Antioxidant activity test showed that the methanol extract of arummanis, kweni and bacang mango seeds had an IC value below 50 which was classified as very strong antioxidant activity. Of the three samples, arum manis mango seed extract had the strongest antioxidant activity (2.84 µg/mL) compared to bacang mango seeds (2.85 µg/mL) and kweni (3.22 µg/mL).
Cultivation of Anthurium Flower Plant in Sewu Kembang Tourism Village, Nglurah, Tawangmangu Hidayatun Nurul Khasanah; Antik Murwani; Rahmadani Rahmadani; Rif'atin Khoirunnisa; Riska Satya Graha Putrimulya; Umi Salamah; Hania Nurbayti; Farhah Qurrotu 'Aini; Avivi Khoirunnida; Qurota A'yun; Nur Rokhimah Hanik
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4987

Abstract

Anthurium flower is an ornamental plant that is widely known and favored by plant lovers. Apart from being a beautiful plant, anthurium is a type of ornamental plant that is easy to care for and cultivate. The purpose of this research is to get anthurium crosses with better variations and to understand proper care and cultivation methods. This research was conducted in the Sewu Kembang Tourism Village, Nglurah Tawangmangu. Data collection in this study was carried out using observation and interview methods. The research data was then analyzed by descriptive qualitative. From the results of the research that has been done, data is obtained showing that anthurium plant propagation can be done in two ways, namely generative and vegetative. In cultivating anthurium, factors that need to be considered include tools and materials, nurseries, and planting methods. Then in the care of anthurium things that must be considered are watering, fertilizing, weeding, placement, repotting, and pest and disease control.
Diversity of Long-tailed Macaque Food Trees (Macaca fascicularis) at The Tapos National Park Management Resort Area, Mount Gede Pangrango National Park Dinda Rama Haribowo; Ardian Khairiah; Ence Maman; Dia Kurnia Alam; Hilal Fadlan Ramada; Indi Pitria Damayanti; Nida Khairun Nisaa; Salwa Fakhirah Alayafi; Rizky Reza Vahlevi; Feby Irfanullah; Lingga Heru Prasetio
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.5035

Abstract

: Long-tailed macaque (LTM) are arboreal primates which have an ecological function as seed dispersers and as controllers of insect populations in their habitat. LTM populations were found in the Tapos National Park Management Resort forest area, MGPNP. The existence of food trees greatly influences the existence and activity of LTM, so knowledge about the diversity of LTM food trees in the Tapos National Park Management Resort area is very important to do. This research aims to determine the level of species dominance in the plant community and diversity of LTM food trees in the Pasir Koja and Pasir Beunyeng Forest Blocks, Tapos Management Resort Area.  Data collection on LTM food trees was carried out using the grid line method of vegetation analysis. Data processing was carried out by calculating the importance value index (IVI) of food tree vegetation and calculating the diversity index (H') of food tree species. The results showed that the highest IVI value in the Pasir Koja forest block was Bamboo (Bambusa sp.) with a value of 106.76%, while Ki acret (Spathodea campanulata) had the lowest IVI value of 10.65%. Meanwhile, the highest IVI value in the Pasir Beunyeng forest block was Kaliandra (Calliandra surinamensis) with an IVI of 166.60%, while reed bamboo (Gigantochloa atter) had the lowest IVI value of 17.62%. The food tree species diversity index in the Pasir Koja and Pasir Beunyeng forest blocks is categorized as low.
Ethnobotany of Medicinal Plants from the Malay People in Tanjung Village, Bunguran District, Northeastern District of Natuna Regency Asmita Asmita; Riza Linda; Dwi Gusmalawati
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.5060

Abstract

The use of plants in traditional medicine has been used out by people in the Kepulauan Riau. However, knowledge about the use of plants in traditional medicine by the Malay people in Tanjung Village, Northeast Bunguran District, Natuna Regency, has never been documented. The aim of this study is to identify the species of plants and plant parts that are used, to learn how to prepare and use medicinal plants, and to evaluate the importance of citation frequency and informant agreement elements in Tanjung village’s traditional medicine. The research was carried out by conducting semi-structured interviews, and continued with a discussion of 13 respondents who were determined by snowball sampling. The data collected includes: the plant species and families, the component used, the processing method, the usage method, and useg. Also, the informant agreement factor and the frequency of citations/mentions of each medicinal plant (%) were determined. The results showed that the people in Tanjung Village used 72 species of plants in traditional medicine. Fabaceae and Zingiberaceae are the dominant plant families reported by respondents as medicinal plants. Generally, the people in Tanjung Village use more of the leaves (46.67%) for use as medicine, the processing method is by boiling (33.3%) and the method of use is by drinking it (58.2%).
Fish Oil Substitution in Fish Feed Using Vegetable Oils, Terrestrial Animal Fats and Indonesian Local Raw Material Candidates (A Review) Thoy Batun Citra Rahmadani; Wastu Ayu Diamahesa
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.5101

Abstract

Aquaculture is one of the world's most rapidly expanding producers of protein-rich diets. This is in accordance with the rising demand for feed to sustain these activities. However, the use of natural materials for fish feed, particularly fish oil, creates a paradox because it is derived from fish, therefore it is against the principles of sustainable agriculture. This article examines vegetable oils with a superior nutritional profile, palatability, digestibility, anti-nutritional factors, availability, and cost in comparison to fish oil. The ten-year-old articles selected and compiled originate from national (SHINTA) and international (Elsevier and Proquest) websites. Finding alternatives to fish oil as a source of lipids in fish diets is the result of several decades of research. Vegetable and animal sources are two main types of fish oil substitutes. Up to one hundred percent of fish oil can be substituted with vegetable oils like palm oil, canola oil, soybean oil, and olive oil. Similarly, animal sources can provide up to 75% of the lipids necessary for fish diets. Moreover, rubber seed oil has the potential to supplant fish oil in Indonesia due to its high omega-3 fatty acid content, which is comparable to that of fish oil. The conclusion of this review is that there are multiple sources of lipids that can be used to replace fish oil, and that more consideration must be given to the type of lipid source used in accordance with the type of fish being cultivated and the location of the fish cultivation.
Effect of Rote Tortoise Habitat on Morphology and Anatomical Systems of the Body and Government Efforts to Overcome Extinction Resti Nopriyanti; Jennie Agatherania Listira; Dominica Feni Valentina; Wahyu Irawati
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
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.v23i4.5127

Abstract

The Rote turtle with the scientific name Chelodina mccordi is an endemic animal from Rote Island, East Nusa Tenggara. The Rote turtle is unique in its long neck and snake-like head. Rote turtles are rarely found in their natural habitat because many are hunted to be traded by collectors of endemic reptiles. The purpose of this study was to determine the effect of the habitat and behavior of the rote tortoise on its morphology and body mechanisms. The method used to compile this paper is to use literature reviews and literature studies from various sources to discuss 5 topics of study, namely: Rote Turtle Habitat, Rote Turtle Morphology, Blood Circulation System, Rote Turtle Respiratory System, Osmoregulation and Excretion of the Rote Turtle, and Uniqueness and Management of the Rote Turtle. Based on the results obtained, the habitat of the Rote turtle greatly influences the morphology and mechanisms of blood, respiration, osmoregulation, and excretion of the Rote turtle. The habitat for tortoise rote is the appropriate physical environment. Low rainfall of around 800-1200 mm/year and swamp grass with a height of about 2-3 meters. Potential predators for food and hunting have caused the Rote tortoise to become rare and rarely found in its natural habitat. The NTT government has designated three natural habitat lakes are natural habitats and the Governor of NTT Decree Number: 204/KEP/HK/2019 made the rote turtle habitat for the rote turtle Essential Ecosystem Area.

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