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The Journal of Experimental Life Sciences (JELS)

jels
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Published by Universitas Brawijaya

ISSN : 20872852 EISSN : 23381655 DOI : 10.21776/ub.jels

Core Subject : Health, Science,

Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

The Journal of Experimental Life Science (JELS) is a scientific journal published by Postgraduate School, University of Brawijaya as distribution media of Indonesian researcher’s results in life science to the wider community. JELS is published in every four months. JELS published scientific papers in review, short report, and articles in Life Sciences especially biology, biotechnology, nanobiology, molecular biology, botany, microbiology, genetics, neuroscience, pharmacology, toxicology, and Applied Life Science including fermentation technology, food science, immunotherapy, proteomics and other fields related to life matter. JELS is a scientific journal that published compatible qualified articles to the academic standard, scientific and all articles reviewed by the expert in their field. The Journal of Experimental Life Science (JELS) have a vision to become qualified reference media to publish the best and original research results and become the foundation of science development through invention and innovation on cellular, molecular, nanobiology, and simulation work related to life matter rapidly to the community. The Journal of Experimental Life Science (JELS) has objectives to published qualified articles on research’s results of Indonesian researchers in life science scope. JELS encompasses articles which discuss basic principles on natural phenomenon with cellular, molecular, and nanobiology approach.

Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)

Articles 299 Documents

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Repairing Cell Structure of Jejunum Tissue in RA-CFA Rat Model Improved by Caprine CSN1S2 Protein Laili Nur Zaidah; Aris Soewondo; Fatchiyah Fatchiyah
The Journal of Experimental Life Science Vol. 10 No. 1 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

We aimed to analyze the effect of CSN1S2 protein in Etawah crossbred goat milk and yogurt on the histopathology of the jejunum and the amount of cell damage in Complete Freund's adjuvant (CFA)-induced rheumatoid arthritis (RA) rats. The rats were divided into six groups: the untreated control rats (C), control rats were given CSN1S2 protein from Etawah crossbred goat milk (CM) or yogurt (CY), RA rats, RA rats given CSN1S2 protein from Etawah crossbred goat milk (RAM) or yogurt (RAY). Hematoxylin-eosin staining was conducted for the histopathological analysis of jejunum. Statistical analysis was done using one-way ANOVA (a significance value of p ≤ 0.05) followed by the Tukey test. Our study observed that the control, CM, and CY group have a normal histological structure of jejunum. The damage to the jejunum structure was reported in the RA group. The milk CSN1S2 protein was able to improve the structure of jejunum villi and increase the normal cell number in the jejunum of the RA group, similar to control. The RAY group showed an impaired jejunum structure and a high number of necrotic cells as in the RA group.

Detection of Reproductive Status in Ongole Crossbred (PO) Cow Based On Vaginal Epithel Morphology and Profile Hormone Yeni Widyaningrum; Aulanni'am Aulanni'am; Agung Pramana Warih Marhendra
The Journal of Experimental Life Science Vol. 10 No. 1 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

Hormonal fluctuations in livestock will affect vaginal cytology good overview on the condition of estrous until pregnancy. The purpose of this study was to determine the physiological condition of Ongole crossbred (PO) cow during estrous and determine pregnancy by the description of vaginal epithelial cells, progesterone, and estrogen hormone profiles. The materials were used 35 cows with physiological status (estrous, 5th pregnancy period, 16th pregnancy period, 22nd pregnancy period, and 60th pregnancy period). Samples of Vaginal smear were stained with Giemsa, then it was observed using a microscope, with 40 times magnification. The progesterone and estrogen were analyzed by the ELISA method. The parameters measured were the percentage of vaginal epithelial cells, such as (parabasal, intermediate, and superficial) started estrous phase until the time of pregnancy in cows (5, 16, 22, and 60 days), hormone concentration, as well as the presence or absence of leukocytes. The result showed the Ongole crossbred cow estrous phase percentage of superficial cells 56.27%±6.49 higher than 26.23%±7.98 intermediate cells, followed by parabasal cells 17.50%±4.74. While in Ongole crossbred that were 5th pregnancy period until the 60th predominantly intermediate cell 80.43%±1.31, then the superficial cells 18.09%±1.30 and 1.48%±0.04 parabasal cells. Progesterone concentration was 63.74±1.07 ng.mL-1 in estrus cows, and steadily increased 93.71±0.94 ng.mL-1 to 149.5±0.71 ng.mL-1 in pregnant cows (5-60 days). The concentration of high estrogen levels were 122.38±0.63 ng.mL-1 in the estrous phase, then decreased 81.54±0.44 ng.mL-1 in the pregnancy phase. In conclusion, the concentration of hormone showed a diagnosis of pregnancy, which done by looking at changes in vaginal epithelial cells at the Ongole crossbred cow, and the cow estrous phase showed greater superficial cells compared by pregnant cows (5-60 days). Keywords: diagnosis of pregnancy, estrous, hormone, Ongole crossbred of cow, vaginal cytology.

The Effectiveness of Combination of Momordica charantia Extract and Averrhoa bilimbi on Nf-Kb Activation in Mice (Mus musculus) Balb/C Hyperglycemia Models Intan Sartika Risky Sampurna; Muhaimin Rifa'i; Sri Rahayu
The Journal of Experimental Life Science Vol. 10 No. 1 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

Hyperglycemia is a medical condition when the blood glucose levels increase exceeds the reasonable limit. Hyperglycemia is a typical sign of diabetes mellitus (DM). Indonesia is the sixth-ranked country in the world after China, India, United States, Brazil, and Mexico. Treatment with herbs is currently being developed. Pare (Momordica charantia) and Belimbing wuluh (Averrhoa bilimbi) are plants that found around us. Some studies state that each of these plants can be anti-diabetic. The hyperglycemia can cause an immune system disorder characterized by pancreatic β cell death involving IL-1β, kappa B (NF)-κB nuclear factor, and Fas. The ability of NF-kB activation will affect the number of cytokines expressed by T cells, namely TNF-α, and IFN-γ. The purpose of this study is to determine the effect of NF-kB activation on blood glucose levels in hyperglycemia mice. The results showed that the positive control treatment showed an increase in the number of NF-kB activations in CD4 and CD8 cells. EPBW (combination of Averrhoa bilimbi extract and Momordica charantia) administration results at a dose of 10 mg.kg-1 BW showed a reduction in the amount of activated NF-kB as a substitute for the reduction. In addition, that dose can reduce blood sugar levels in mice hyperglycemia model.

The Artificial Bee Colony (ABC) Algorithm for Estimating Parameter of Epidemic Influenza Model Ririn Nirmalasari; Agus Suryanto; Syaiful Anam
The Journal of Experimental Life Science Vol. 10 No. 1 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

The Artificial Bee Colony (ABC) is one of the stochastic algorithms that can be applied to solve many real-world optimization problems. In this paper, The ABC algorithm was used to estimate the parameter of the epidemic influenza model. This model consists of a differential system represented by variations of Susceptible (S), Exposed (E), Recovered (R), and Infected (I). The ABC processes explore the minimum value of the mean square error function in the current iteration to estimate the unknown parameters of the model. Estimating parameters were made using participation data containing influenza disease in Australia, 2017. The best parameter chosen from the ABC process matched the dynamical behavior of the influenza epidemic field data used. Graphical analysis was used to validate the model. The result shows that the ABC algorithm is efficient for estimating the parameter of the epidemic influenza model. Keywords: ABC, Epidemic, Estimate, Influenza, Parameter.

Evaluation of Proteolytic and Chitinolytic Activities of Indigenous Bacillus Species from Crab Shell Waste Moh Dliyauddin; Tri Ardyati; Suharjono Suharjono
The Journal of Experimental Life Science Vol. 10 No. 1 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

The increase of crab meat export activities in Indonesia leads to the accumulation of crab shell waste in a massive amount that can naturally degrade and causing bad odor. Naturally, microorganisms will degrade this waste through fermentation and enzymatic reaction, including protease and chitinase due to its high content of chitin and protein. Bacillus is the most potential bacteria to degrade crab shell waste, and indigenous Bacillus from this waste can increase the degradation rates. The aims of this study were to evaluate the proteolytic and chitinolytic activities of indigenous Bacillus species from crab shell waste. Bacillus cereus BP14 and Bacillus licheniformis CK20 as the chitinolytic bacteria, and Bacillus subtilis AP9 and Bacillus licheniformis AP5 as the proteolytic bacteria were isolated from crab shell waste and identified based on the 16S rDNA sequences. The bacterial isolates were grown in skim milk broth for proteolytic characterization and colloidal chitin broth for chitinolytic characterization. The growth rates of each bacteria were determined through the growth curves. The enzymatic activities were determined based on the international standard for protease and chitinase enzyme activities together with growth curve sampling to determine the best incubation time for obtaining the highest enzymatic activities. From the shortest to the longest generation times of the Bacillus species obtained were B. subtilis AP9, B. licheniformis CK20, B. cereus BP14, and B. licheniformis AP5, respectively. The best incubation time for producing the highest enzymatic activity varied among species. However, the end of the logarithmic phase was similar. All of the Bacillus species obtained from this study exhibited chitinolytic and proteolytic activity. Therefore, it can be used as promising candidates of biodegradation agents inenhancing the degradation rates of crab shell wastes.

Physicochemical Characteristics and Consumer Acceptance of Bagged Indonesian Green Tea (Camellia sinensis) Formulated with Cinnamon Bark (Cinnamomum burmannii) and Lemon (Citrus limon) Peel Adinda Kirana; Wenny Bekti Sunarharum
The Journal of Experimental Life Science Vol. 10 No. 1 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2019.010.01.12

Green tea is a popular functional beverage mostly due to its high antioxidant activity. However, based on preliminary study, the taste such as its bitterness and flavour were somehow disliked by Indonesian consumers, and therefore formulation with other materials such as the addition of cinnamon and lemon peel may bring an advantage.This research was aimed to study the effect of formulation of bagged Indonesian green tea with cinnamon and lemon peel to the physicochemical characteristics of the tea and its consumer acceptance. Evaluation on the effect of different steeping time while brewing those tea formulas was also reported. The formula being investigated was F1, F2, and F3 with green tea: cinnamon: lemon peel at the ratio of 70:15:15, 70:12:18, and 70:9:21, respectively.Tea brewing was performed at 100Â°C, followed by a steeping time (L) at 1, 3, and 5 minutes. The results indicated that the addition of more cinnamon and longer steeping time had increased total phenol and antioxidant activity of the brewed tea. Based on the consumer acceptance test, the formula ofgreen tea: cinnamon:lemon peel at 70:15:15 along with 3 minutes steeping time, was generally scored highest for degree of liking but the ratio of 70:12:18 was the most accepted or preferred for aroma.The best treatment was achieved on the ratio of green tea:cinnamon:lemon peel = 70:12:18, under 5 minutes steeping time. The best treatment provided a pH of 5.13, lightness (L*) at 44.93, redness(a*) at -2.50, yellowness (b*) at 16.93, total phenol of 59.82 mgGAE.g-1, and IC50 of 59.39 ppm.

The Effect of Methyltestosterone Hormone Immersion on Male Formation in Gourami Larvae (Osphronemus goramy Lacepè¨de, 1801) Tatang Tatang; Maheno Sriwidodo; Harsuko Riniwati
The Journal of Experimental Life Science Vol. 10 No. 3 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2020.010.03.03

The methyltestosterone hormone is a synthetic hormone of androgen and has been used to obtain the juveniles of male mono-sexual fish such as Tetra Congo, Tilapia, and Betta. The methyltestosterone use on gourami has not maximized. It because there is no data on the exact age of larvae to produce maximum male mono-sexual juveniles, so it is necessary to do research on the effect of methyltestosterone hormone on the age of gourami larvae on the success of male mono-sexual formation and get the right larval period to obtain maximum survival gourami. The methods of this research were conducted using a completely randomized design with four treatments of the age of gourami larvae aged ten days, 15 days, 20 days, and 25 days. Each procedure was repeated three times. Data analysis used ANOVA analysis and LSD test. The larvae are soaked in a solution containing 5 ppm of hormones for 24 hours. The results showed that the administration of the hormone methyltestosterone to gourami larvae (Osphronemus goramy Lacepè¨de, 1801) with different ages had a very significant effect (P <0.01) on male sex formation with the highest average percentage of males obtained in treatment B (15-day larvae age) that is equal to 82.33% and the lowest in the treatment of larval period of 10 and 20 days is 74.00%. Keywords: Gourami, hormone, juvenile, methyltestosterone, Osphronemus goramy.

Isolation and Identification of Indigenous Cellulolytic Bacteria from Sago Pith Waste at Palopo, South Sulawesi, Indonesia Mamluatul Faizah; Tri Ardyati; Suharjono Suharjono
The Journal of Experimental Life Science Vol. 10 No. 2 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2020.010.02.09

Palopo, South Sulawesi, is one of the traditional industrial centers of sago processing. The accumulation of sago pith waste around industrial sites can pollute the environment. Some microorganisms can degrade the cellulose in sago pith waste. This study was aimed to evaluate the indigenous cellulolytic bacteria from sago pith waste as a biodegradation agent. Bacteria were isolated from sago pith waste and grown on a 1% Carboxyl methyl cellulose (CMC) agar medium. The cellulolytic activity was analyzed semiquantitatively using 1% Congo red and quantitatively using the 3,5-Dinitrosalicylic Acid (DNS) method at pH variations of 4, 5, and 6. The potential isolate was identified based on 16S rDNA sequence similarity. This study obtained 21 bacterial isolates where six isolates were A1D, A1E, A1I, A1K, A2A, and B1A had the highest cellulolytic index at 0.82 - 1.13. Among those six isolates, the A1E isolate had the highest cellulolytic activity, 0.54 U.mL-1 at pH 6. The isolate A1E was identified as Burkholderia cepacia JCM 2799 with 99.73% similarity of 16S rDNA sequence. Keywords: Burkholderia cepacia, cellulolytic bacteria, cellulase enzyme, sago waste.

Characterization of Probiotics Isolated from Intestine of Mackerel Fish (Rastrelliger sp.) from Lembata Regency of East Nusa Tenggara Helena Daten; Tri Ardyati; Yoga Dwi Jatmiko
The Journal of Experimental Life Science Vol. 10 No. 2 (2020)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2020.010.02.04

The research aimed to isolate, characterize, and analyze the ability of lactic acid bacteria (LAB) potential as probiotics to produce hydrolase enzyme. The LAB was isolated using MRS agar by the spread plate method. The LAB characterization includes antimicrobial activity, tolerance to low pH, bile salt, salinity, autoaggregation properties, and ability to produce hydrolytic enzymes. The isolate which has the highest ability to inhibit Aeromonas hydrophila is KBP 3.3, while the isolate which inhibits the highest Streptococcus agalactiae is KBP 1.1.1. The KBP 3.3 and KBP 1.1.1 were able to survive at pH 1 for 24 hours with a survival rate of 93.6% and 98.3%. The KBP 3.3 and KBP 1.1.1 are tolerant to 7.5% bile salt concentrations for 24 hours of 99.46% and 99.11%. The KBP 3.3 is tolerant to 0.5 % salinity for 24 hours with the highest survival rate of 113.38%, while KBP 1.1.1 is 94%. The KBP 3.3 and 1.1.1 have autoaggregation properties of 92.18% and 87.84%. The KBP 3.3 produced the highest lipase enzyme, while KBP 1.1.1 produced the protease enzyme.Keywords: hydrolytic enzyme, lactic acid bacteria, mackerel, probiotic

Risk Prevention of Ventilator-Associated Pneumonia Thorough Oral Hygiene: A Literature Review Musdalipah Musdalipah; Yuliana Syam; Takdir Tahir
The Journal of Experimental Life Science Vol. 11 No. 1 (2021)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2021.011.01.05

Ventilator-Associated Pneumonia (VAP) is a type of nosocomial infection that mostly occurs in intensive care units, generally occurring 48 hours after intubation. Endotracheal intubation and the use of a mechanical ventilator are invasive measures by patients, having a therapeutic effect. This paper aimed to identify the use of oral hygiene materials for the incidence of pneumonia related to the use of a ventilator. The research design was by searching literature in five databases, namely PubMed, Proquest, Science Direct, Wiley Online Library, and Google Scholar, by taking all databases in English and Indonesian, published in the last ten years (2010-2020). There were six articles about the effectiveness of using oral hygiene as risk prevention for Ventilator-Associated Pneumonia (VAP) with various concentrations and volumes. Several oral health assessment tools that can be used are Oral Assessment Guide, Beck Oral Assessment Scale, or Mucosal-Plaque Score. Comprehensive implementation of oral hygiene can improve the oral health of patients with mechanical ventilation, so bacterial colonization that causes VAP can be prevented. Therefore, nurses need to understand and apply oral assessment instruments as a basis for giving intervention.Keywords: Intensive care unit, Oral hygiene, Ventilator-Associated Pneumonia

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Home Page

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Contact Name Jehan Ramdani Hariyati

Contact Email jehanramdani@ub.ac.id

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Editorial Address Jl. Veteran Malang 65145

Location Kota malang, Jawa timur INDONESIA

Abstract

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Contact Name
Jehan Ramdani Hariyati

Contact Email
jehanramdani@ub.ac.id

Phone
+6282333752235

Journal Mail Official
jehanramdani@ub.ac.id

Editorial Address
Jl. Veteran Malang 65145

Location
Kota malang,

Jawa timur

INDONESIA