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Microbiology Indonesia
Published by Perhimpunan Mikrobiologi Indonesia
ISSN : 19783477     EISSN : 20878575     DOI : -
Core Subject : Health, Science,
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology
Microbiology Indonesia provides a unique venue for publishing original researches in microbiology (espesially from Indonesian reseachers), and ensures that authors could reach the widest possible audience. Microbiology Indonesia publishes a wide range of research disciplines on bacteria, archaea, fungi, protozoa, and virus as well as biotechnology related to microbiology. Topics include (but are not limited to): -methods in microbiology, -bioprocess, -environmental microbiology, -food microbiology, -plant-microbe interaction, -animal-microbe interactions, -microbial community, -microbial genetics, -virology, -comparative and functional microbial genomics, -and gene expression in microbes.
Arjuna Subject : Imunologi dan Mikrobiologi (semua kategori) - Mikrobiologi dan Bioteknologi Terapan
Articles 398 Documents
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Physiological Profiling and Microorganism Community Analysis of Cirebon Shrimp Paste Fermentation “Terasi” using BIOLOGTM EcoPlate
Microbiology Indonesia Vol. 12 No. 1 (2018): March 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.612 KB) | DOI: 10.5454/mi.12.1.3

Abstract

Terasi or shrimp paste is an Indonesian traditional seasoning made from fermented small shrimp or krill. Different indigenous microorganism community exhibit different physiological function due to lack standard in its materials and processing. This study aimed to determine physiological profiles and microorganism community in Cirebon shrimp paste fermentation. BIOLOGTM EcoPlate was used to obtain microbial physiological function of the krill and 2-months old shrimp paste. Microorganisms were later isolated from EcoPlate substrate to determine its community structure. Average Well Color Development (AWCD) from krill was thirty times higher than shrimp paste. Interestingly, this study revealed a shift of carbon source utilization at day-28 of fermentation from amino acid and polymer to phenolic compound. In addition, AWCD index increased in accordance with increased of microorganism community complexity at day-28. Within 56 days of fermentation there was a slightly increase in water, fat, and carbohydrate content. In contrast, there was decrease in protein, ash content, and acidity level from neutral to acid, with salinity level resulted in between 16.26% to 21.42%. We conclude that there is a change of microorganism community within shrimp paste fermentation corresponding to metabolism activity which affects the product quality. 
Purification and Characterization of Glucose Oxidase of Aspergillus niger IPBCC.08.610 ANINDA INDRIANI; LAKSMI AMBARSARI; DEWI SESWITA ZILDA
Microbiology Indonesia Vol. 12 No. 2 (2018): June 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (575.093 KB) | DOI: 10.5454/mi.12.2.2

Abstract

Glucose oxidase was an enzyme which catalyzed β-D-Glucose to gluconic acid and hydrogen peroxide. Glucose oxidase from Aspergillus niger IPBCC.08.610 was isolated, purified and characterized. The enzyme was purified by ammonium sulphate precipitation and dialysis. The specific activity and yield of dialysis fraction were 19.766 U/mg and 4.744%. The optimum pH and temperature were 6 and 30oC. The stability of enzyme at optimum pH and temperature was decreasing 50% at 25 minutes. The km and vmax values for enzyme were 27 mM and 0.986 U/mg.
Influence of Temperature Variations on Growth of Nostoc (Cyanobacteria) HS-5 and HS-20 Isolated from Indonesian Hot Springs NINING BETAWATI PRIHANTINI; CAHYA GUSLYANI; RATNA YUNIATI; WELLYZAR SJAMSURIDZAL
Microbiology Indonesia Vol. 12 No. 2 (2018): June 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1761.766 KB) | DOI: 10.5454/mi.12.2.1

Abstract

The research aims to know the effect of variation temperature to the growth of Nostoc HS (Hot Spring)-5 and HS-20. Strain of Nostoc HS-5 was isolated from Ciseeng hot spring which has habitat temperature range of 30-43 °C, and Nostoc HS-20 was isolated from Pancar Mountain hot spring which has temperature range of 46-69 °C. The research was done by measuring biomass weight and chlorophyll content on day-1, 2, 3, 4, 7, 10, 14, 17, and 21. The temperatures used were 20 °C, 35 °C, and 50 °C. The growth medium used was Bold Basal Medium (BBM) with pH 6.6. Each treatment was made in four replications. Non-parametric statistical analysis used were the Friedman test (a=0.05) and Spearman test (a=0.01).The result showed there were significant differences on the biomass weight of Nostoc HS-5 and HS-20 grown at temperature of 20 °C, 35 °C, and 50 °C. The average amount of biomass highest weight for Nostoc HS-5 and HS-20 occurred in both strains were grown at 35 °C.  Besides that, there was no correlation between the weight of biomass and chlorophyll content of Nostoc HS-5 and HS-20.
The Addition of Dextrose to the Preparation of Culture Media from Earthworm Juice (Lumbricus rubellus) for the Production of Saccharomyces cerevisiae FNCC 3012 Inoculum
Microbiology Indonesia Vol. 12 No. 2 (2018): June 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (32.6 KB) | DOI: 10.5454/mi.12.2.3

Abstract

Saccharomyces cerevisiae is one of the commonly used yeast for bioethanol production. It can be produced by growing it in a culture medium containing nitrogen and carbon. Earthworms (Lumbricus rubellus) are high in protein and have a relatively low price that can be used as a source of nitrogen for S. cerevisiae FNCC 3012. Dextrose is used as a carbon source. The objectives of the study were to determine the comparison of the growth rate of S. cerevisiae FNCC 3012 to the earthworm juice and commercial media (malt extract, meat extract, and yeast extract). The highest yield of S. cerevisiae FNCC 3012 cells were produced on the earthworm juice medium with 1% dextrose addition. The maximum specific growth rate (μmax) and the saturation constant (Ks) about 3,4.h-1 and 3,1 g.l-1, respectively.
Probiotic Potential of Lactic Acid Bacteria from Yellow Bamboo Shoot Fermentation using 2.5% and 5% Brine at Room Temperature LINDAYANI LINDAYANI; LAKSMI HARTAJANIE; MONIKA PALUPI MURNIATI
Microbiology Indonesia Vol. 12 No. 1 (2018): March 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1089.648 KB) | DOI: 10.5454/mi.12.1.5

Abstract

Yellow bamboo shoot is a popular food material especially in Semarang because it is used as filling for lumpia (authentic food of Semarang). Beside used as filling, yellow bamboo shoot commonly known by Indonesian people. Considering bamboo shoot often processed into fermented traditional food, yellow bamboo shoot also potential to be examined as source of fermented food producing lactic acid bacteria. Lactic acid bacteria still become the most beneficial microorganisms associated with gastrointestinal system and moreover for obesity diet. The aim of this research is to study the probiotic potential of lactic acid bacteria produced from yellow bamboo shoot fermentation in 2.5% and 5% brine under room temperature (30 °C). From isolation, 22 single colonies obtained from 2.5% brine and 27 isolates obtained from 5% brine. The morphology and physiology analysis resulted in Lactobacillus and Streptococcus genus. All isolates were tested subsequently for probiotic potential. Based on the result, more than 50% identified isolates have probiotic potential.
Cover and editor information
Microbiology Indonesia Vol. 12 No. 1 (2018): March 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.517 KB) | DOI: 10.5454/mi.12.1.%p

Abstract

ITA registration and back cover Is Helianti
Microbiology Indonesia Vol. 12 No. 1 (2018): March 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1287.638 KB) | DOI: 10.5454/mi.12.1.%p

Abstract

Cloning and expression of NS2B/NS3 protein of DENV3 Indonesia strain in Saccharomyces cerevisiae expression system for the development of Dengue vaccine ASRI SULFIANTI; SABAR PAMBUDI; ISMA NUR AZIZAH; DODDY IRAWAN SETYO UTOMO; ABINAWANTO ABINAWANTO
Microbiology Indonesia Vol. 12 No. 2 (2018): June 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3936.725 KB) | DOI: 10.5454/mi.12.2.4

Abstract

NS3 protein is 618 amino acids (aa) in length containing serine protease and helicase domains required for DENV replication. Alignment of consensus amino acid sequences from all four DENV serotypes demonstrated that this protein is more conserved (78%) among the different dengue serotypes, which elicits a strong cellular immune response after viral infection in humans and animal models. Present study, a central hydrophilic region of NS3 cofactor, NS2B (NS2BH) with full length of NS3 genes DENV3 Indonesian strain were amplified from CDNA following PCR, and inserted to PYES2/CT shuttle vector. The recombinant plasmid was transformed and expressed in Saccharomyces cerevisiae expression system. As result, detection with Anti-His detector and Anti-NS3 shown NS2BH/NS3 was expressed as 83 KDA protein band. We found that addition of NS2BH on NS3 full length construction plasmid increase the yield and activity of protein expression in S. cerevisiae. In future study, our recombinant NS2B/NS3 protein can be used as recombinant protein in Dengue vaccine development.
ITA REGISTRATION FORM AND BACK COVER
Microbiology Indonesia Vol. 12 No. 2 (2018): June 2018
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (970.339 KB) | DOI: 10.5454/mi.12.2.%p

Abstract

Antioxidant and Antibacterial Activities Enhancement of Solid-state Fermented Candlenut Kernels by Aspergillus oryzae GRACE DOLOROSA LIMBONG; LEVY NATHANAEL NABABAN; ADELINA MANURUNG; MERRY MERYAM MARTGRITA
Microbiology Indonesia Vol. 13 No. 2 (2019): June 2019
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.282 KB) | DOI: 10.5454/mi.13.2.2

Abstract

According to several studies, solid state fermentation (SSF) can enhance antioxidant and antibacterial activity of natural sources, and microorganism that is widely used in this kind of research is Aspergillusoryzae. Therefore, this study employed SSF by A. oryzae to enhance antioxidant and antibacterial activity of candlenut kernel. Candlenut kernel powder, that has been moistened with 60% water, was inoculated with 10% (w/w) of 5-day-culture ofA. oryzae, and was fermented for 9 days (until exponential phase; sample-1)and 12 days(until stationary phase; sample-2). The fermented candlenut kernels was extracted by ethanol and concentrated using rotary evaporator. Total phenolic content of control (unfermented extract), sample-1, and sample-2 are 0.183 mg GAE/g, 2.761 mg GAE/g, and 4.194 mg GAE/g, respectively. This results supported the IC50 value determined by DPPH method, those are 617.11 μg/ml, 260.23 μg/ml, and 45.29 μg/ml. These results revealed a very strong antioxidant activity (< 50 μg/ml) in the sample fermented until stationary phase.Antibacterial assay to Staphylococcus aureus resulted diameter of inhibition zone 7.17 mm, 13.51 mm, and 18.51 mm, respectively. And to Pseudomonas aeruginosa resulted diameter of inhibition zone 6.52 mm, 11.786 mm, and 15.269 mm, respectively. From this result, SSF until stationary phase enhanced higher antioxidant and antibacterial activity compared the other treatments. 

Page 18 of 40 | Total Record : 398

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