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Research Journal of Life Science

rjls
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Published by Universitas Brawijaya

ISSN : - EISSN : 23559926 DOI : https://doi.org/10.21776/ub.rjls

Core Subject : Health, Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology

Research Journal of Life Science (RJLS) is an open access publishes papers three times a year that emphasize the agriculture, fisheries, animal science, medicine, basic science and food technology. All articles are rigorously reviewed by reviewers. Articles should be created in a language that is easily understood by non-specialist readers in the topic of the article itself, but interested in research. The main objective of RJLS is to provide a platform for the international scholars, academicians and researchers to share the contemporary thoughts and innovations in the field of life science. RJLS aims to promote studies in life science and so become the leading international journals in life science in the world.This journal intends to provide facilities to advance the development and application of interdisciplinary and transdisciplinary research methodologies in life sciences.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)

Articles 7 Documents

Search results for , issue "Vol 5, No 3 (2018)" : 7 Documents clear

The Effect of Ulva lactuta Polysaccharide Extract on Total Haemocyte Count and Phagocytic Activity of L. vannamei Suleman Suleman; Sri Andayani; Ating Yuniarti
Research Journal of Life Science Vol 5, No 3 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

This research aimed to evaluate the effect of polysaccharide extract of Ulva lactuta on the total haemocytes count (THC) and the phagocytic activities (PA) on Litopenaeus vannamei. The concentration of the extract used in this research was 5 ppm and it was applied through the immersion. The haemolymph was collected after the administration in the different periods at hour of 4 and 24. The results showed that the administration of polysaccharide extracts increased THC and PA in L. vannamei significantly (p<0.05). THC and PA of white-leg shrimp with polysaccharide extract was higher than that without the administration of the extract. The enhancement of THC was found after the administration at hour 4 from 5.00 cells. ml-1 to 5.26 x 104 cells. ml-1. However, the THC level decreased after 24 hours at the value of 5.19 x 104 cells. The increasing pattern was also true for PA of L. vannamei, from 40.44% to 53.67% (hour 4). At the hour of 24, the PA was found decreased to the level and then decreased 45.67 ±1.53. On the contrary, there were no enhancement of THC and PA in the treatment without polysaccharide extract of Ulva lactuta.

Antioxidant Effect of Centella asiatica Ethanolic Extract to Superoxide Dismutase (SOD) Level on Cyprinus carpio Liver Diklawati Jatayu; Happy Nursyam; Asus Maizar Suryanto Hertika
Research Journal of Life Science Vol 5, No 3 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Centella asiatica is a herbal medicine has been used for many studies in some animals as antioxidant properties. This study was aimed to enhance the level of SOD in Cyprinus carpio after oral administration of C. asiatica extract. In the present study, phytochemical screening of bioactive constituents, antioxidant assay, and their effect on SOD in C. carpio liver were investigated. C. asiatica extract was obtained by maseration for 24 h using ethanol as a solvent. C. asiatica extract with 50, 100, 150 and 300 mg kg-1 body weight were administered every 3 days for two weeks. On the last day of experiment, fishes were killed and liver were removed from the body. The results showed that C. asiatica extract had some bioactive compounds such as flavonoid, alkaloid, terpenoid, tanin, saponin and DPPH scavenging activity with an IC50 value of 125 μg mL-1. C. asiatica extract also enhanced the level of SOD in fish liver. The SOD level was significantly difference compared to the control group with P<005. These results indicate that the ethanolic extract of C. asiatica had a potential antioxidant properties by scavenging free radical and enhancing the SOD level as antioxidant deffense inside the body.

Association Between Time Spent for Internet Gaming, Grade Point Average and Internet Gaming Disorder Risk Among Medical Students Nia Kurnianingsih; Retty Ratnawati; Dearisa Surya Yudhantara; Rizqi Bagus Setyo Prawiro; Maryam Permatasari; Heidyana Rachma; Adilla Surya Ariadi
Research Journal of Life Science Vol 5, No 3 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

The negative and positive consequences of internet games were less explored among medical students’ population. The aim of this current study was to investigated the association between time spent for playing internet games and Grade Point Average (GPA) as well as Internet Gaming Disorder (IGD) risk among medical students. A total of 438 students in academic year 2016-2017 completed the self-report questionnaire, that covered socio-demographic information, GPA, time spent for internet gaming/day, and IGD screening. The statistical analysis used c2 test. The average age of the respondents was 20.2 ±1.57 year. The respondents comprised of 37.13% male and 62.87% female students. The percentage of male and female players was 97.5% and 93.8% respectively. Male students were more at risk of IGD (29.56%) compared to their female counterparts (10.04%). Although time spent for internet gaming/day was associated with IGD risk (p<0.001), it was not associated with GPA (p=0.501). There was no significant GPA difference between students who played internet games <3 hours/day and >3 hours/day and those who never play at all. Further study is required to explore the factors related to GPA among medical students.

Activity of Compounds on Seaweed Eucheuma cottonii Extract as Antioxidant Candidate to Prevent Effects of Free Radical in Water Pollution Dewi Wulandari; Yuni Kilawati; Mohamad Fadjar
Research Journal of Life Science Vol 5, No 3 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Water pollution can make many problems such as, the incidence of disease and poisoning. Pollution in water can produce free radicals and it is can trigger of disease for aquatic organisms. There is some efforts that can be done to provide this problem, such as chemical compound that can reduce the reaction of free radicals. Antioxidants are one of the chemical compounds that can reduce the activity of free radicals. Eucheuma cottonii is the one of a seaweed that has many in antioxidant compounds, such as phenol compounds, but it is also rich in iodine fiber and other important minerals. The method used in this research is descriptive explorative and experimental method. This research was conducted with several stages of seaweed extraction. Identification of Eucheuma cottonii extract is using FTIR test. The last stage is an antioxidant activity test that includes DPPH test (1,1-diphenyl-2-picrilhidrazil) and Inhibition Concentration 50 (IC 50). The results obtained in this study were based on FTIR test of antioxidant compound in Eucheuma cottonii seaweed extract. The one of compounds that have antioxidant activity include galaktosa-4-sulfat. Based on the results of antioxidant activity test using DPPH obtained that seaweed extract Eucheuma cottonii active as an antioxidant to ward off free radicals in the waters. The concentration of Eucheuma cottonii seaweed extract for preventive 50% concentration of DPPH is 39,926 ppm.

Histopathological in Gills, Hepatopancreas and Gut of White Shrimp (Litopenaeus Vannamei) Infected White Feces Disease (WFD) Jefri Anjaini; Mohamad Fadjar; Sri Andayani; Ivana Agustin; Ilham Bayu
Research Journal of Life Science Vol 5, No 3 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

White Feces Disease which is the presence of white feces floating on the surface of the water. Physical disruption of White Feces Disease attacked by exocytes becoming soft. the cause of white defect disease (WFD) is a decrease in environmental quality such as salinity, DO and ammonia. white feces disease is associated with gregarine protozoa in the Apicomplexa phylum. Gregarine parasitic infection from the type of nematopsis that was interacted with Vibrio and Vibrio type bacteria found in white shrimp (Litopenaeus vannamei) which was attacked by white impurities was V. harveyi. This study aims to analyze the presence of gregarine protozoa in the gills, intestines and hepatopancreas of white shrimp infected with White Feces Disease. The method used in this research is descriptive method. Histopathological results showed that there were protozoa (Gregarine) in the intestine, hepatopancreas and gills of white shrimp infected with WFS in 3 different locations and found Aggregated Transformed Microvilli (ATM) that resembled gregarine.

Identification of Koi Herpesvirus on Koi Fish (Cyprinus carpio) with Immunocytochemistry Test Streptavidin Biotin Rika Wahyuningtyas; Uun Yanuhar
Research Journal of Life Science Vol 5, No 3 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Koi herpesvirus (KHV) has been identified in common carp (Cyprinus carpio) and varieties of C. carpio such as koi carp. Handling KHV outbreak on koi fish are always late and on case KHV infection, hence the purpose of this study is to find an alternative method in identifying a particular fish diseases KHV which more simple, practical and accurate. 20 samples are positively infected by KHV were derived from Blitar, with the characteristic of them are gill slime, erosion or ulcers on the skin, movement were not controlled, and skin blister. The result of our study showed that 100% positive reaction to the ICC in smear blood, which is marked golden chocolate color. The result of immunostaining streptavidin biotin obtained that koi fish have been infected by severe KHV showed golden chocolate color on the blood smear compared to positive control. While fish have been infected by undemanding KHV infection or still in the beginning stage, the blood smear showed chocolate bluish. It can be concluded that Immunocytochemistry Test Streptavidin Biotin can be used for early identifying of Koi Herpes Virus (KHV) due to simpler producer, more practical, and accurate result.

Investigation of Scutellaria radix on Phenoloxidase and Prophenoloxidase of Giant Freshwater Prawn, Macrobrachium rosenbergii, via Reverse-gavage Feeding Andriawan, Soni; Bao, Hung Tran; Cheng, Phillip T.; Yuniarti, Ating
Research Journal of Life Science Vol 5, No 3 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Scutellaria radix is one of the ancientest approaches to treat diseases. The aim of this study was to investigate the effect of Scutellaria radix on the immune responses of Macrobrachium rosenbergii by reverse-gavage feeding and their protection against Lactococcus garvieae. In brief, M. rosenbergii was injected with S. radix water extract at 1, 5 and 10 µg/µl via reverse-gavage feeding (RGF). Phenoloxidase (PO) activity of hemocytes and prophenoloxidase (proPO) gene of hepatopancreas were assessed to determine M. rosenbergii immunity. The results revealed that the concentration of S. radix extract at 5 µg/µl enhanced significantly the phenoloxidase of M. rosenbergii correlated with the control group. For pro PO were up-regulated by all concentration in a time-dependent manner. The highest percentage of survival rates was observed at 5 µg/µlof S. radix water extract after challenged with L. garvieae. The present discoveries suggest that S. radix water extract at the concentration of 5 µg/µlmay raise the immune responses and gene expressions in M. rosenbergii using RGF.

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Kuswanto

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Directorate of Research and Community Service, Gedung Layanan Bersama, 7th Floor, Jl. Veteran Malang, Universitas Brawijaya, 65145, Jawa Timur, Indonesia

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Kuswanto

Contact Email rjls@ub.ac.id

Phone +62341 575825

Journal Mail Official rjls@ub.ac.id

Editorial Address Directorate of Research and Community Service, Gedung Layanan Bersama, 7th Floor, Jl. Veteran Malang, Universitas Brawijaya, 65145, Jawa Timur, Indonesia

Location Kota malang, Jawa timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Kuswanto

Contact Email
rjls@ub.ac.id

Phone
+62341 575825

Journal Mail Official
rjls@ub.ac.id

Editorial Address
Directorate of Research and Community Service, Gedung Layanan Bersama, 7th Floor, Jl. Veteran Malang, Universitas Brawijaya, 65145, Jawa Timur, Indonesia

Location
Kota malang,

Jawa timur

INDONESIA