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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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Zoonotic Potential of Rotavirus from Swine and Bovine in South of Taiwan Dewi Murni; Pratiwi Trisunuwati; Ming Hui Liao
The Journal of Experimental Life Science Vol. 6 No. 1 (2016)
Publisher : Postgraduate School, Universitas Brawijaya

Rotavirus was recognized as the virus that responsible for causing acute gastroenteritis, especially young livestock. Taiwan Center for Disease Control (CDC) confirms the majority cases of acute gastroenteritis in Taiwan on February 2015 were caused by rotavirus. In this study, we report the incidence and zoonotic impact of rotavirus strain from Taiwan. This study examined 90 (swine) and 60 (bovine) fecal samples collected from south of Taiwan in March 2015. Detection of rotavirus using VP6 gene by RT-PCR technique with amplicons 379 bp. Zoonotic potential analysis based on nucleotide sequence and phylogenetic analysis. RT-PCR utilizing the primers specific for VP6 gene detected rotavirus with positive reactions 3/30 (10%) in piglets and 1/20 (5%) in the calf. Based on the nucleotide sequences and phylogenetic analysis indicated that 1 of 3 wild strains from swine rotavirus had 85.0% - 91.1% and 1 wild strain from bovine had 78.7% - 85.9% identity relations with human strains. These findings indicated that the wild strains of swine and bovine rotavirus may broadly spread and contribute to zoonotic transmission. Keywords: Bovine, Rotavirus, RT-PCR, Swine, Zoonotic.

Proximate Composition of Some Common Alternative Flour as Fish Feed Ingredient Arrum Nurjannah Herdiyanti; Happy Nursyam; Arning Wilujeng Ekawati
The Journal of Experimental Life Science Vol. 8 No. 3 (2018)
Publisher : Postgraduate School, Universitas Brawijaya

Indonesia has very large territorial water, so it supports the development of the economy in the field of fisheries, one of which is through aquaculture. Recently fish meal has become the most expensive protein ingredient in aquaculture feeds. We aim to proximately analysis of some common alternative flour as fish feed ingredient i.e. fish flour, shrimp head flour, soybean flour, and bran flour to get best-recommended flour for type cultured fish. Fish flour, shrimp head flour, soybean flour, and bran flour was purchased from the fish farmer in Malang who use alternative fish feed flour for their aquaculture. Proximate analysis carried out by protein content, Moisture content, Fat and Fiber. Proximate analysis was conducted in the Fishery Products Engineering laboratory, Brawijaya University on April 2018. The results showed that shrimp head flour had higher protein content than others flour that is about 48.71%, fat and carbohydrate content about 7.99%, and 18.34% respectively. Soybean flour contains protein, fat and carbohydrate about 31.29%, 20.75%, and 30.45% respectively. Carnivorous fish culture can use high protein flour as an alternative ingredient for feed such as fish flour and shrimp head flour; balance proximate composition for omnivorous fish cultures such as soy flour and high carbo flour such as bran flour for herbivorous fish culture.Keywords: Bran flour, Shrimp head flour, Soybean flour, Proximate analysis.

Effect of Reducing Sugar and Total Nitrogen to Ethanol Production from Molasses by Saccharomyces cerevisiae Ekwan Nofa Wiratno; Tri Ardyati; Agustin Krisna Wardani
The Journal of Experimental Life Science Vol. 4 No. 2 (2014)
Publisher : Postgraduate School, Universitas Brawijaya

Indonesia's oil production has declined, while demand for derivative products is increasing. Objective of this research are to understand effect of reducing sugar and total nitrogen variation to ethanol production and fermentation efficiency, cell viability, acidity, temperature, dissolved oxygen with molasses by Saccharomyces cerevisiae (SAF Instant). Step of this research consist of determination of reducing sugar, ethanol fermentation, total nitrogen determination, ethanol determination and data analysis. Treatment of reducing sugar (GR) and total nitrogen (N) (g.L-1) that are GR 100 N 0, GR 100 N 6, GR 100 N 10, GR 125 N 0, GR 125 N 6 and GR 125 N 10. Fermentation was carried out for 72 hours with three replications. Observation parameters every 24 hours are ethanol and reducing sugar concentration, temperature, acidity and dissolved oxygen. Highest ethanol resulted from GR 125 N 6 (3.68 g.L-1) and GR 100 N 6 (3.53 g.L-1). Low reducing sugar consumption inhibited by by-product of yeast metabolism and molasses chemical compound, lead leaves high sugar concentration (> 80 g.L-1). GR 100 N 6 and GR 125 N 6 have highest fermentation efficiency (69 and 57 %). There was no increase in temperature and decrease in pH significantly (α>0.05). Dissolved oxygen decreased significantly (α>0.05) at the early of fermentation and decrease until the end of fermentation. Total nitrogen 6 g g.L-1 has the highest fermentation efficiency. Keywords: ethanol, molasses, reducing sugar, Saccharomyces cerevisiae, total nitrogen

An Analysis on Hemocytes Profile in Kijing Taiwan (Anodonta woodiana) and Water Quality in Freshwater Aquaculture Ponds Dyah Ayu Wijayanti; Asus Maizar Suryanto Hertika; Bagyo Yanuwiadi
The Journal of Experimental Life Science Vol. 8 No. 1 (2018)
Publisher : Postgraduate School, Universitas Brawijaya

Kijing Taiwan (Anodonta woodiana) is found in water with muddy substrate. Kijing Taiwan lives in bottom waters and is relatively settled. Kijing Taiwan is a filter feeder organism that can filter water and is able to survive in polluted environment, so it can be used as a bio-indicator of a water body. The study was conducted in the Public Hatchery Unit (UPR) Sumber Mina Lestari. Profile hemocytes in Taiwan Kijing influenced by environment pollution inducer among others. Hemocytes were observed consisting of Total Haemocyte Count (THC) and Differential Haemocyte Count (DHC). The results show that the profile of hemocytes (THC and DHC) of Kijing Taiwan is not polluted. Results from aquaculture pond water quality measurements indicate that the indicators of the water quality i.e. temperature, pH, dissolved oxygen, and ammonia are still within normal limits. However, in TOM test, BOD and soil organic matter has exceeded the normal limits. The existence of organic matter became the medium of life for Kijing Taiwan, due to its role as a biofilter among other organic materials. Keywords: Hemocytes Profile, Kijing Taiwan, Water Quality.

CFGWC-PSO in Analyzing Factors Affecting the Spread of Dengue Fever in East Java Province Abdussamad, Siti Nurmardia; Astutik, Suci; Effendi, Achmad
The Journal of Experimental Life Science Vol. 9 No. 3 (2019)
Publisher : Graduate School, Universitas Brawijaya

Fuzzy Geographically Weighted Clustering-Particle Swarm Optimization using Context Based Clustering (CFGWC-PSO) has been developed to clustering in factors influencing the spread of dengue fever in East Java Province. CFGWC-PSO method can overcome slow computing time problems in terms of iterations, and produce accurate data partition with stable. In this research, CFGWC-PSO applied to 11 variables from data on the causes of the spread of dengue fever in East Java Province in 2017. CFGWC-PSO using the FCM method to determine the context variable. Processing used the results of clustering with 2 clusters until 5 clusters. From the three validation index that used to find out the right number of clustering, two clusters gave better clustering results. CFGWC-PSO shows that all districts/cities in cluster 2 become dengue fever endemic areas that need to be considered by the East Java Provincial Government.Keywords: Context-Based Clustering, dengue hemorrhagic fever, Fuzzy Geographically Weighted Clustering-Particle Swarm Optimization.

Aktivitas Imunomodulator Polyscias obtusa Terhadap Sistem Imunitas Pada Bone Marrow Broiler Setelah Pemberian Salmonella typhimurium Erin Kurnianingtyas; Muhammad Sasmito Djati; Muhaimin Rifa'i
The Journal of Experimental Life Science Vol. 3 No. 1 (2013)
Publisher : Postgraduate School, Universitas Brawijaya

Antibiotik banyak dimasukkan dalam pakan ternak untuk menanggulangi penyakit ternak, namun pemberian antibiotik dalam waktu lama dapat menyebabkan resistensi dan juga residu bagi manusia. Polyscias obtusa memiliki senyawa saponin, tanin, dan flavonoid yang diduga sebagai imunomodulator dalam sistem imunitas tubuh. Tujuan penelitian ini untuk mengetahui pengaruh daun P. obtusa sebagai imunomodulator terhadap imunitas anak ayam broiler. Metode penelitian diantaranya uji konfirmasi bakteri, persiapan kultur bakteri dan daun P. obtusa, pembuatan pakan ransum dosis 1 (0.08%), dosis 2 (0.16%) dan dosis 3 (0.26%) dari daun P. obtusa, infeksi S. typhimurium 500 µl secara oral di hari ke-14, pembedahan pertama pada hari ke-24, pembedahan terakhir pada hari ke-34, sel limfosit diisolasi pada organ bone marrow dan diinkubasi dengan antibodi rat-anti-CD4+PE, rat-anti-CD8+ FITC, dan rat-anti-CD45+PerCP masing-masing sebanyak 50 µl kemudian dilakukan running flowcytometri. Hasil menunjukkan bahwa secara keseluruhan perlakuan yang paling menunjukkan dalam peningkatan sel limfosit adalah perlakuan yang diberi dosis daun P. obtusa, yaitu perlakuan pakan ransum dosis 0,08%, perlakuan pakan ransum dosis 0,16%, dan perlakuan pakan ransum dosis 0,26%. Jumlah relatif CD4+ mengalami peningkatan dengan hasil yang berbeda nyata. Sehingga dapat dibuktikan bahwa daun P. obtusa mampu berperan sebagai imunomodulator dalam sistem imunitas. Kata kunci : Ayam broiler, Polyscias obtusa, Salmonella typhimurium, sel

Microbial Community Composition of Two Environmentally Conserved Estuaries in the Midorikawa River and Shirakawa River Tran Thanh Liem; Mitsuaki Nakano; Hiroto Ohta; Takuro Niidome; Tatsuya Masuda; Kiyoshi Takikawa; Shigeru Morimura
The Journal of Experimental Life Science Vol. 6 No. 2 (2016)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2016.006.02.02

To provide a general overview of the microbial communities in environmentally conserved estuaries, the top 5 cm of sediment was sampled from the sandy estuary of the Shirakawa River and from the muddy estuary of the Midorikawa River. Higher amounts of organic matter were detected in the Midorikawa estuary sample than in the Shirakawa estuary sample. Measurement of redox potential revealed that the Shirakawa estuary was aerobic and the Midorikawa estuary was much less aerobic. Clone analysis was performed by targeting partial 16S rRNA gene sequences and using extracted DNA from the samples as a template. Various bacteria were detected, among which Gammaproteobacteria was dominant at both estuaries. Unclassified clones were detected in the Gammaproteobacteria group, mainly among samples from the Midorikawa estuary. Other detected bacterial groups were Alphaproteobacteria, Deltaproteobacteria, Chloroflexi, Actinobacteria, and Bacteroidetes. All the Deltaproteobacteria clones were anaerobic sulfate-reducing bacteria. Those aerobic and anaerobic bacteria coexisted in the top 5 cm of the estuary sediments indicating the surface layer have active sulfur and carbon cycle. Abundance of aerobic Gammaproteobacteria may be an indicator for conserved estuaries. Keywords: conserved environment, clone analysis, estuary, microbial community, 16S rRNA gene.

Sensitivity and Stability Analysis of a SEIR Epidemic Model with Information Robiatul Witari Wilda; Trisilowati Trisilowati; Moch. Aruman Imron
The Journal of Experimental Life Science Vol. 9 No. 1 (2019)
Publisher : Postgraduate School, Universitas Brawijaya

In this paper, the construction and stability analysis of a SEIR epidemic model with information are discussed. This model contains information about how to prevent the spread of infectious diseases which is transmitted by infected individuals to susceptible individuals. Furthermore, the dynamical analysis of the model which includes determination of equilibrium points terms of existence, stability analysis of the equilibrium points and sensitivity analysis are observed. Local stability of the equilibrium point is determined by linearizing the system around the equilibrium point and checking for the eigenvalue sign of Jacobian matrix at each equilibrium point. Sensitivity analysis is performed by using a sensitivity index to measure the relative change of basic reproduction number on each parameter. Based on the analysis result, there are two equilibrium points namely disease-free equilibrium point and endemic equilibrium point. The disease-free equilibrium point always exists and is locally asymptotically stable if the basic reproduction number is less than one. Moreover, the endemic equilibrium point exists and is locally asymptotically stable under certain conditions. From sensitivity analysis, it is found that the rate of mortality is the most sensitive parameter and the least sensitive parameter is the rate of exposed individual becomes infected individual. Finally, numerical simulation is conducted to support the analysis result.Keywords: Epidemic, information, sensitivity analysis, SEIR, stability analysis.

Hambatan Prostaglandin pada Pemberian OAINS dan Non-OAINS Pasca Pemakaian Alat Ortodontik Shanty Sintessa; H. M. Soemarko; Liliek Suprapti; Iwan Hernawan
The Journal of Experimental Life Science Vol. 3 No. 2 (2013)
Publisher : Postgraduate School, Universitas Brawijaya

Alat ortodontik pada bidang kedokteran digunakan untuk merapikan gigi agar tersusun rapi dan berada pada lengkung rahang. Sehingga mengakibatkan tekanan yang akan merangsang dan menimbulkan reaksi inflamasi jaringan sekitar. Salah satu mediator inflamasi yang mempengaruhi pergerakan gigi adalah prostaglandin (PGE2). Obat Antiinflamasi Non-Steroid (OAINS) digunakan didalam perawatan ortodontik untuk mengatasi rasa sakit akibat reaksi inflamasi yang terjadi. Sementara itu proses inflamasi diperlukan pada perawatan ortodontik melalui peran PGE2 yang merangsang aktivitas osteoklas dan osteoblas, keduanya diperlukan agar gigi dapat bergerak. Pemilihan jenis selektivitas OAINS perlu diperhatikan mengingat inflamasi diperlukan dalam proses pergerakan gigi tersebut. Penelitian ini bertujuan untuk membandingkan pengaruh selektivitas OAINS dan non OAINS terhadap hambatan PGE2 dan jumlah sel osteoklas - osteoblas tulang alveolus gigi rahang atas akibat pemakaian alat ortodontik. Pengamatan dilakukan dengan menggunakan aspirin sebagai OAINS yang selektif terhadap cox 1, diklofenak sebagai OAINS selektif cox 2, dan paracetamol sebagai non OAINS. Pada penelitian ini digunakan hewan coba marmut yang terbagi menjadi kelompok kontrol (n=6), aspirin 87 mg.kg-1 BB po(n=6), diklofenak 2 mg.kg-1 BB po (n=6), dan paracetamol 200 mg.kg-1 BB po(n=6). Perlakuan dengan alat ortodontik selama 3 hari. Konsentrasi PGE2 diukur dengan spektrofotometer dan sel osteoklas-osteoblas dihitung secara histologis. Analisa anova digunakan untuk mebandingkan hambatan PGE2 pada pemberian aspirin, diklofenak, dan paracetamol terhadap kontrol. Uji korelasi untuk menghubungkan hambatan PGE2 terhadap jumlah osteoklas-osteoblas. Hasil penelitian menunjukkan bahwa aspirin, diklofenak, dan paracetamol menurunkan PGE2 dalam tulang dengan signifikan (p≤0,01). Penurunan konsentrasi PGE2 berhubungan dengan jumlah osteoklas-osteoblas yang terbentuk dengan uji korelasi yang tidak signifikan (p≥0,05). Sehingga dapat disimpulkan bahwa pemakaian OAINS dalam waktu 3 hari tidak mempengaruhi proses pergerakan gigi dan paracetamol dapat digunakan sebagai obat penghambat prostaglandin tanpa banyak mempengaruhi proses pergerakan gigi. Kata kunci: PGE2, COX, OAINS, osteoklas, osteoblas, pergerakan gigi, alat ortodontik.

The Effects of Rosella Extract (Hibiscus sabdariffa) against the n-carboxymethyl-lysine, NF-κβ, TNF-α in the Rats Heating Food Diets Batmomolin Bataif; Setyawati Soeharto K; Edi Widjajanto; Ardhiyanti Puspita Ratna; Silvy Amalia
The Journal of Experimental Life Science Vol. 8 No. 1 (2018)
Publisher : Postgraduate School, Universitas Brawijaya

The food processing by heating can increase the formation of AGEs (Advanced Glycation End Products). AGEs are compounds that formed from a non-enzymatic continuous glycation reaction between proteins and sugar residues. The CML (N-carboxymethyl-lysine) is used as a marker for AGEs cause most commonly found in vivo. The bond of AGEs and RAGE (receptor for AGEs) induce various signaling pathways that trigger inflammation and increase oxidative stress. The AGE and RAGE interaction activate the transcription factor of NF- κβ. NF- κβactivates gene transcription to release proinflammatory cytokines such as TNF-α. Anthocyanins are compounds that can prevent the formation of AGEs and muffle the adverse effects of AGEs. Rosella contains anthocyanin such as: delphinidin-3-O-glucoside, delphinidin-3-O-sambubioside, and cyanidin-3-O-sambubioside. This study is to determine whether the daily intake of Rosella extract can reduce the levels of n-carboxymethyl-lysine in serum, expression of NF-κβ and TNF α in the rats fed with heated food. This study applied experimental post test control using Rattus norvegicus Wistar strain. The samples were divided into 5 groups: KN (negative control/fed without heating), KP (positive control/fed heated food but not treated by Rosella extract), R1 (fed heated food and treated by 200 mg.kg-1BW Rosella extract), R2 (fed heated food and treated by 300 mg.kg-1BW Rosella extract), and R3 (fed heated food and treated by 400 mg.kg-1BW Rosella extract). The n-carboxymethyl-lysine levels were measured by using the ELISA, the expression of NF-κβ is analyzed by using immunofluorescence, and expression of TNF - α is observed by immunohistochemistry. There was significantly decreased the levels of n-carboxymethyl-lysine in all groups which were treated by Rosella extracts (R1,R2,R3); p= 0.000, α = 0.05 (p< α). Decreased activation of NF-κβ in all groups which were treated by Rosella extract is significant (p = 0.000), and decreased expression of TNF α in all groups which were treated by Rosella extract is also significant (p = 0.000). Rosella extract can reduce the levels of n-carboxymethyl-lysine, expression of NF-κβ, and TNF α. Keywords: AGEs, anthocyanin, Rosella flower extract, n-carboxymethyl-lysine, NF-κβ, TNF α.

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Jehan Ramdani Hariyati

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

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

Abstract

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Abstract

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