cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota mataram,
Nusa tenggara barat
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 51 Documents
 2   3   4   5   6 
Search results for , issue "Vol. 22 No. 4 (2022): October - December" : 51 Documents clear
Analysis of Agricultural Input Resources on Chopped Tobacco Production of Reket and Seram Varieties in Suralaga District East Lombok Regency Dudi Septiadi; Muhammad Nursan; Aeko Fria Utama FR; Pande Komang Suparyana; Baiq Saopi Nadiawati
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4414

Abstract

Tobacco is a leading commodity that has high economic value. The tobacco products industry has a major contribution to the structure of state revenues through excise taxes, employment and sources of farmers' income. This research aims to; 1) explain the relevance of the characteristics of farmers and the production of chopped tobacco in Suralaga sub-district, East Lombok Regency; 2) analyze the influence of farming input resources on the production of reket and seram tobacco varieties in Suralaga District, East Lombok Regency. The research was conducted in Suralaga District, East Lombok Regency. The study was conducted from July 2021 - November 2021. The sampling method used purposive sampling as many as 40 farmer respondents who run tobacco farming. The data analysis method used in this research is quantitative analysis with multiple linear regression approaches. The results of the research show that the agricultural input resource variables that affect the production of tobacco farming are tobacco farming land variables, pesticides, labour, farming experience, and age. While the dummy variables in this study, namely the gender and variety types were also stated as variables that had an effect on tobacco production.
Analysis of Different Volume of Production of Shrimps, Milk Fishes and Seaweeds in The Province of West NusaTenggara And East Nusa Tenggara Nuri Muahiddah; Anna Apriana Hidayanti
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4415

Abstract

The production of shrimp, milkfish and seaweed farming is able to contribute to food sources in Indonesia, especially in the province West Nusa Tenggara (NTB) and East Nusa Tenggara (NTT) areas. This study aims to determine the differences in the volume of production of shrimp, milkfish and seaweed in NTB and NTT in the last decade.This study use t test.  The results of this study were accepts H1 that is there is a significant difference between the volume of shrimp production in NTB and NTT, for the results of the test the different volumes of seaweed production The result obtained is a significance value of 0.004 which is smaller so that it accepts H1 i.e. there is a significant difference between the production volume in the provinces of NTB and NTT, and the last one for the results of the different test results in the volume of milkfish production, the significance value of 0.06 is greater than 0.05, which means that it accepts Ho, there is no significant difference between the volume of milkfish production in the provinces of NTB and NTT. In this study, there was a significant difference in the volume of production of shrimp and seaweed between the provinces of NTB and NTT, so that areas with lower provincial average volumes were able to participate in the management of shrimp and seaweed cultivation in the aquaculture development process from the perspective of natural resources and human resources.
Farmers Respons to Garlic Development On Upland Program in East Lombok Regency Idiatul Fitri Danasari; Ni Made Wirastika Sari; Rifani Nur Sindy Setiawan
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4420

Abstract

East Lombok Regency is one of locations that designated as the location for garlic development in Indonesia. The potential for garlic development is supported by the availability of land scattered in a number of sub-districts in East Lombok Regency such as Sembalun District, Suela District, Wanasaba District, and several other buffer districts. Seeing this potential, through The Development of Integrated Farming System in Upland Areas (Upland)’s Program, the Government of East Lombok Regency focuses on developing garlic. The purpose of this study was to determine the characteristics and responses of garlic farmers to the Upland Program in East Lombok Regency. The research was conducted by quantitative descriptive method with survey and interview. The selection of respondents used a purposive sampling technique on farmers who received and implemented the Upland Program in 2021-2022. Method of data analysis using multiple linear regression test. The results showed that the response of farmers was very high in garlic development activities in the Upland Program in East Lombok Regency. There are several variables that have a positive and significant effect on farmer responses, namely income (X3), land area (X4), and farming experience (X5). Meanwhile, age and education variables have no significant effect on farmers' responses.
Genetic Diversity of Red Rice (Oryza Sativa L.) Population M2 Results of G16 Rice Genotype Mutations with 200gy and 300gy Gamma Ray Iradiation A A K Sudharmawan; I G P M Aryana; Ni Wayan Sri Suliartini; Sofian Aji Purnama
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4425

Abstract

Mutational breeding can be used to obtain superior varieties by improving some of the desired traits, without changing most of the good traits. The purpose of this study was to determine the genetic diversity of brown rice through segregation of traits in rice mutants due to gamma ray irradiation at doses of 200 gy and 300 gy. The method used is an experimental method carried out from May to September 2021 with a single plant. The distribution of the data was tested by the Kolmogorov-Smirnov test using software and the segregation ratio suitability test using the Chi-Square method with a 5% significance level. The results showed that the data distribution was normally distributed, meaning that it was controlled by many genes (polygenic). on the quantitative trait whose data distribution is not normally distributed, it indicates that the trait is controlled by simplegenic. The results of the Mendel's ratio suitability test using Chi-Square for quantitative traits that follow the Mendelian ratio, which shows a segregation ratio of 9: 7 (double recessive epistasis) where the same phenotype is produced by both homozygous recessive genotypes and two recessive genes are epistatic to the dominant allele. For traits that do not follow the Mendelian ratio or their modifications, it is assumed that they are controlled by many genes (minor genes) so that individual effects are difficult to distinguish.
Isolate and Characterization of Lactic Acid Bacteria (LAB) in Local Nira as Probiotic Starter Candidates Aini Aini; Jumari Ustiawaty; Edy Kurniawan; Alfin Maulana
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4429

Abstract

Probiotics are dietary supplements that contain lactic acid bacteria (BAL), which are capable of converting sugars (including lactose). Probiotics are used in the prevention of infectious diseases. Nira is often used as an ingredient to make alcoholic beverages (tuak) and sugar, but it has not been able to increase the economic value of sap water. The purpose of this study was to isolate lactic acid bacteria in sap as a probiotic candidate. The method in this study was carried out by isolating lactic acid bacteria in sap with a dilution series of 10-0, 10-1, 10-2, 10-3, 10-4, 10-5, and 10-6, then pipetting 1 ml into a cup petri dish and incubating in an anaerobic jar equipped with Anaerocult for 2 x 24 hours. Then macroscopic and microscopic observations were made and sugar and catalase tests were carried out to determine the type of bacteria found. The results of the isolation and characterization of bacteria in the sap were found to be 4 isolates, namely isolate 1A, which is Bacillus coagulans bacteria. Isolate 1B was a Bacillus licheniformis bacteria. Isolates 2A and 2B are bacteria from the genus Lactobacillussp.
Phytochemical Testing and In Vitro Anti-inflammatory Activity on Ethanol Extract of Akar Kuning (Arcangelisia flava L) Stems from West Kalimantan Gusti Eva Tavita; Desriani Lestari; Riza Linda; Rita Kurnia Apindiati; Rafdinal Rafdinal
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4431

Abstract

The akar kuning plant (Arcangelisia flava L) from the Menispermaceae family is one of the Bajakah plant groups, which propagate among large trees and are commonly found in tropical forests in the West Kalimantan region. The purpose of this study was to determine the phytochemical compound and activity of anti-inflammatory from the akar kuning stem ethanol extract through the stabilization ability of the human red blood cell membrane (HRBC) in vitro. The akar kuning plant was taken from the forest of the Kapuas Hulu region, dried and mashed first and then extracted by maceration using the organic solvent ethanol. The ethanol extract obtained was concentrated using a rotary evaporatory, then a sample solution of akar kuning ethanol extract was made at several concentrations. Based on the results of phytochemical testing, this plant contained flavonoids, tannins, alkaloids and saponins. Anti-inflammatory activity testing using rabbit blood and using diclofenac sodium as a positive control. The measurement results showed the anti-inflammatory activity of the ethanol extract of the yellow root plant at concentrations of 50, 100, 150, 200 and 250 mg/mL were 28.77, 39.45, 57.53, , 62.80 and 75.50%, while the percentage of HRBC stabilization of the positive control was at the same concentration were 34.55, 46.34., 56.56, 69.88 and 87.33%.
The Potential of Indigenous Lactic Acid Bacteria Lactobacillus Plantarum Dad 13 in Ice Cream as Probiotic Food B. R. D Wulandani; D. Kisworo; Bulkaini Bulkaini; W. Yulianto; Haryanto Haryanto
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4436

Abstract

Worldwide demand for functional food will continue to increase rapidly due to increasing public awareness about the impact of food on health. One example of functional food is milk-based food which contains probiotic bacteria such as yogurt, cheese, and ice cream. Among probiotic dairy products, ice cream is the ideal matrix delivery of probiotic ingredients to the human body. This study aimed to find the potential of L. plantarum dad 13 in ice cream as a probiotic food through the growth pattern of the resulting lactic acid bacteria and to obtain the best incubation time and aging time for the physicochemical properties of the ice cream produced. The experimental design in this study used a Randomized Block Design (RBD), which was arranged in a factorial manner with 2 factors. The first factor is the length of incubation time which consists of 3 levels, namely 0, 5, and 10 hours; and the second factor is the length of aging which consists of 3 levels, namely 24, 48, and 72 hours. The results showed that the viability of lactic acid bacteria in ice cream with the addition of lactic acid bacteria L. plantarum dad 13 was more influenced by the pH value during the aging process, and there was an interaction between the incubation time and the aging time on the viability of the lactic acid bacteria L. plantarum dad 13 in ice cream, as well as the antioxidant activities, produced.
Identification of Bacteria in Fresh Vegetables from The Traditional Market of Mataram City Syamsul Bahri; Rika Ratnasari; Ulfah Nurkhaeroni; Mujitahid Mujitahid
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4445

Abstract

Indonesia is very rich in potential for vegetable cultivation. Vegetables contain a lot of vitamins and minerals. Therefore, people prefer to eat vegetables in a fresh state either as salads or fresh vegetables. However, contamination of pathogenic bacteria is much greater both at the farmer and trader levels. Therefore this study aims to determine the feasibility of consumption and identify bacteria in fresh vegetables in the traditional market of Mataram City. Samples in the form of lettuce, cucumber, cabbage, and long beans were taken from Pagesangan, Kebon Roek, Gunung Sari, and Bertais markets, respectively. The existence of bacteria were detected using traditional method by inoculating samples in agar cultures followed by biochemical testing and Gram staining. Species of bacteria that can be identified from samples are Enterobacter cloacae, Bhanhamella catarrhalis, E-coli, Staphylococus sapropyticus, and Aeromonas hydrophila. Based on the data, long beans from the Bertais market and lettuce from the Pagesangan, Kebon Roek, and Gunung Sari markets are not suitable for consumption because the TPC yield exceeds the consumption quality standard of 105-106 CFU/g.
Production Efficiency Measurement of Seaweed Cultivation In The Specific Economic Zone of Mandalika, Central Lombok Regency Muhammad Nursan; Syarif Husni; M. Yusuf; Aeko Fria Utama FR; Ni Made Nike Zeamita Widiyanti
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4506

Abstract

Central Lombok Regency, especially in the Specific Economic Zone (SEZ) Mandalika apart from being a tourism area it is also one of the centers for seaweed cultivation in NTB Province, seaweed cultivation in the SEZ Mandalika, Central Lombok Regency currently still has several problems, one of which is business productivity which is still low. The low productivity of seaweed cultivation can be caused by inefficient allocation of inputs. The aims of this study were: 1) to analyze the factors that affect the production of seaweed aquaculture, 2) to analyze the level of efficiency of the production of seaweed aquaculture, and 3) to analyze the factors that influence the level of technical inefficiency of seaweed cultivation in SEZ Mandalika, Central Lombok Regency. This study uses a descriptive research method with a mixed method research approach. Collecting research data using survey techniques through interviews with respondents as many as 30 people who were taken by accidental sampling. Analysis of the data in this study using the method of Cobb-Douglas stochastic frontier production function to measure the level of production efficiency of seaweed cultivation in SEZ Mandalika, Central Lombok Regency. The results of this study indicate that seaweed production is significantly influenced by the variables of area, seeds, and labour. The level of production efficiency of seaweed cultivation is efficient with a production efficiency value of 0.861. Then the factors that affect the technical inefficiency of seaweed cultivation in Central Lombok Regency include level of education and dummy farmer groups.
Analysis of Malondialdehyde (MDA) Levels Based on Body Mass Index, Waist Circumstances, and Body Fat Percentage in Students of Medicine Program Faculty of Medicine Mataram University Ida Ayu Eka Widiastuti; Fitriannisa Faradina Zubaidi; Basuki Rahmat; Gede Wira Buanayuda
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.4513

Abstract

Obesity can cause chronic oxidative stress. Oxidative stress occurs when the formation of free radicals is greatly increased or the protective antioxidant mechanisms are disrupted. Previous studies have concluded that there is a relationship between oxidative stress and excess body weight and obesity. One of the products of oxidative stress is malondialdehyde (MDA). This study aims to determine the correlation between malondialdehyde (MDA) levels and body mass index (BMI), waist circumference (LP), and body fat percentage. The subjects were 55 students of the Medical Education Study Program, Faculty of Medicine, University of Mataram, class of 2021. The BMI variable was calculated by dividing body weight (kg) by the square of height (m), waist circumference was measured using a tape measure (cm), and body fat percentage measured by body composition monitor (%). Serum MDA levels were measured using the ELISA method. Data were analyzed statistically with the Spearman correlation test. The results showed that the average MDA level in subjects with overweight and obesity was higher than normal, however there was no significant correlation between body mass index, waist circumference, and body fat percentage with MDA levels, with each significance value :p=0.230; p=0.276; and p=0.666. Body mass index, waist circumference, and body fat percentage cannot be ruled out as risk factors for oxidative stress.

Page 5 of 6 | Total Record : 51

 2   3   4   5   6 

Filter by Year

2022 2022


Reset
Filter By Issues
All Issue Vol. 24 No. 1 (2024): Januari - Maret Vol. 23 No. 4 (2023): October - December Vol. 23 No. 4b (2023): Special Issue Vol. 23 No. 3 (2023): July - September Vol. 23 No. 2 (2023): Special Issue Vol. 23 No. 2 (2023): April-June Vol. 23 No. 1 (2023): Special Issue Vol. 23 No. 1 (2023): January - March Vol. 22 No. 4 (2022): October - December Vol. 22 No. 3 (2022): July - September Vol. 22 No. 2 (2022): April - June Vol. 22 No. 1 (2022): January - March Vol. 21 No. 3 (2021): September - Desember Vol. 21 No. 2 (2021): Mei - Agustus Vol. 21 No. 1 (2021): Januari - April Vol. 20 No. 3 (2020): September - Desember Vol. 20 No. 2 (2020): Mei - Agustus Vol. 20 No. 1 (2020): Januari - April Vol. 19 No. 2 (2019): Juli - Desember Vol. 19 No. 1 (2019): Januari - Juni Vol. 18 No. 2 (2018): Juli - Desember Vol. 18 No. 1 (2018): Januari - Juni Jurnal Biologi Tropis vol.17 No.2 Desember 2017 Jurnal Biologi Tropis vol.17 No.1 Juni 2017 Jurnal Biologi Tropis. Vol.16 No.2 Desember 2016 Jurnal Biologi Tropis. Vol.16 No. 1 Juni 2016 Jurnal Biologi Tropis. Vol.15 no.2 Desember 2015 Jurnal Biologi Tropis. Vol.15 No. 1 Juni 2015 Jurnal Biologi Tropis. Vol.14 No. 2 Desember 2014 Jurnal Biologi Tropis. Vol.14 No. 1 Juni 2014 Jurnal Biologi Tropis. Vol.13 No. 2 Desember 2013 Jurnal Biologi Tropis. Vol.13 No.1 Juni 2013 More Issue