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Ann Microbiol 2018 1;68(7):459-470. Epub 2018 Jun 1.

Faculty of Food Science and Biotechnology, Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland.

In the present study, a FPL strain exhibiting fructophilic behavior has been isolated for the first time from honeydew. It is a probably syntrophic bacterium inhabiting the gastrointestinal tract of L. and taking part in sugar metabolism. Read More

Ann Microbiol 2015;65(3):1627-1637. Epub 2014 Nov 25.

Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.

Reaction of soil bacteria to drought and rewetting stress may depend on soil chemical properties. The objectives of this study were to test the reaction of different bacterial phyla to drought and rewetting stress and to assess the influence of different soil chemical properties on the reaction of soil bacteria to this kind of stress. The soil samples were taken at ten forest sites and measured for pH and the contents of organic C (C) and total N (N), Zn, Cu, and Pb. Read More

Ann Microbiol 2015;65(3):1537-1546. Epub 2014 Nov 19.

Department of Animal Hygiene and Animal Welfare, Wrocław University of Environmental and Life Sciences, ul. Chełmońskiego 38 C, 51-631 Wrocław, Poland.

The effects of helium and argon plasma treatments on inactivation of both pure bacterial cultures inoculated onto the surface of agarized media and the surface microbiota of meat were investigated. Cold plasmas were generated by high voltage discharge at low pressure (20 kPa) for 2, 5, and 10 min. The number of viable microorganisms was determined using a plate count method. Read More

Ann Microbiol 2015;65(3):1495-1503. Epub 2014 Oct 11.

Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences, Nowoursynowska Street 159c, 02-787 Warsaw, Poland.

Glycerol is considered an important renewable feedstock as well as an undesirable side-product of biodiesel production. The aim of this study was to determine whether supplementing a culture medium with a combination of three different carbon sources (olive oil, glucose and glycerol) would optimize lipase production by the yeast . The optimization experiments were conducted with a statistical approach using the mixture design. Read More

Ann Microbiol 2015;65(3):1401-1409. Epub 2014 Sep 20.

Unidad de Biodeterioro Industrial, Fundación Instituto Zuliano de Investigaciones Tecnológicas, La Cañada, Estado Zulia Venezuela.

is a human pathogen able to form biofilms on the surface of urinary catheters. Little is known about biofilms on natural or industrial surfaces and the potential consequences for these settings. The main aim of this work was to assess and compare the adhesion and biofilm formation of strains from different origins on chitin and stainless steel surfaces within 4 to 96 h. Read More

Ann Microbiol 2015;65(2):1097-1107. Epub 2014 Aug 22.

Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.

The ability of 16 strains of to biotransform acetophenone and its derivatives has been studied. Thirteen of these strains were derived from a wild-type strain A-101; six had the invertase gene () from integrated into their genome, as well as the damaged or undamaged gene encoding orotidine-5'-phosphate decarboxylase (), three had integrated the damaged gene into their genome and three were UV acetate-negative mutants, not able to growth on acetate as the sole carbon source. The other tested strains included two wild strains, A-101 and PMR-1, and an adenine auxotroph ATCC 32-338A. Read More

Ann Microbiol 2015;65(1):533-542. Epub 2014 Apr 22.

College of Land and Environment, Shenyang Agricultural University, Dongling Road 120, Shenyang, 110866 Liaoning China ; National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Dongling Road 120, Shenyang, 110866 Liaoning China.

In this study, the effect of mineral fertilizer and organic manure were evaluated on soil microbial biomass, dehydrogenase activity, bacterial and fungal community structure in a long-term (33 years) field experiment. Except for the mineral nitrogen fertilizer (N) treatment, long-term fertilization greatly increased soil microbial biomass carbon (SMBC) and dehydrogenase activity. Organic manure had a significantly greater impact on SMBC and dehydrogenase activity, compared with mineral fertilizers. Read More

Ann Microbiol 2015;65(1):95-104. Epub 2014 Mar 12.

Saudi Aramco, Research & Development Center, P.O. Box 62, Dhahran, 31311 Saudi Arabia.

The complete mineralization of crude oil into carbon dioxide, water, inorganic compounds and cellular constituents can be carried out as part of a bioremediation strategy. This involves the transformation of complex organic contaminants into simpler organic compounds by microbial communities, mainly bacteria. A crude oil sample and an oil sludge sample were obtained from Saudi ARAMCO Oil Company and investigated to identify the microbial communities present using PCR-based culture-independent techniques. Read More

Ann Microbiol 2014 25;64(4):1857-1859. Epub 2014 Jan 25.

Laboratorio de Biotecnología, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, El Líbano, 5524 Macul Santiago, RM Chile.

A polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of 16S ribosomal RNA (rRNA) genes was developed to identify lactic acid bacteria (LAB) that are commonly present in winemaking processes (, and ). This culture-independent approach revealed the presence of in the spontaneous malolactic fermentation in industrial Chilean wines. Read More

Ann Microbiol 2014 27;64:1197-1202. Epub 2013 Nov 27.

Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, Wojska Polskiego Street No. 48, 60-627 Poznań, Poland.

Bacteriocins are small peptides with antimicrobial activity, that are produced by bacteria. Four classes of bacteriocins produced by lactic acid bacteria have been defined. Class IIa bacteriocins are promising candidates for industrial applications due to their high biological activity and their physicochemical properties. Read More

Ann Microbiol 2014 13;64:891-898. Epub 2013 Dec 13.

Department of Biotechnology and Food Microbiology, Poznań University of Life Sciences, Wojska Polskiego 48, 60-627 Poznań, Poland.

Glycerol is a valuable raw material for the production of industrially useful metabolites. Among many promising applications for the use of glycerol is its bioconversion to high value-added compounds, such as 1,3-propanediol (1,3-PD), succinate, ethanol, propionate, and hydrogen, through microbial fermentation. Another method of waste material utilization is the application of crude glycerol in blends with other wastes (e. Read More

Ann Microbiol 2014 15;64:799-808. Epub 2013 Aug 15.

Auschwitz-Birkenau State Museum, Więźniów Oświęcimia St. 20, 32-603 Oświęcim, Poland.

The objective of this study was to assess biological colonization of wooden and brick buildings in the former Auschwitz II-Birkenau concentration camp, and to identify the organisms colonizing the examined buildings. Microbiological analysis did not reveal increased microbial activity, and the total microbial count of the barrack surfaces did not exceed 10 CFU/100 cm. However, certain symptoms of biodegradation of the buildings were observed. Read More

Ann Microbiol 2014 28;64:689-697. Epub 2013 Aug 28.

Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, Engineering Centre for Quality Control and Risk Assessment of Aquatic Products, College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306 People's Republic of China.

Activated sludge of wastewater treatment plants carries a diverse microflora. However, up to 80-90 % of microorganisms in activated sludge cannot be cultured by current laboratory techniques, leaving an enzyme reservoir largely unexplored. In this study, we investigated carboxypeptidase diversity in activated sludge of a wastewater treatment plant in Shanghai, China, by a culture-independent metagenomic approach. Read More

Ann Microbiol 2014 4;64:611-617. Epub 2013 Aug 4.

Oral Microbiology and Immunology, Institute of Oral Biology, Center of Dental Medicine, University of Zürich, Plattenstrasse 11, 8032 Zürich, Switzerland.

Beneficial microbes, such as lactobacilli establish a symbiosis with the host and confer health-associated effects, by limiting the growth of indigenous pathogens and challenging microbes introduced by altered foods. Nevertheless, there is scarce information on the effects of beneficial microbes on the virulence properties of bacterial species associated with oral diseases, such as periodontitis. is a Gram-negative species highly implicated in the etiology of localized aggressive periodontitis. Read More

Ann Microbiol 2013 14;63:1477-1482. Epub 2013 Feb 14.

Avian Ecophysiology Unit, Department of Vertebrate Ecology and Zoology, University of Gdańsk, ul. Wita Stwosza 59, 80-308 Gdańsk, Poland.

It is widely known that virulence is related to its biofilm formation. Although Enterococci are common commensal organisms of the gastrointestinal tract, the difference between commensal and pathogen strains remain unclear. In this study, we compare the biochemical profile of the biofilms formed by two groups of medical and two groups of commensal strains. Read More

Ann Microbiol 2012 Dec 10;62(4):1437-1445. Epub 2011 Dec 10.

Chair of Microbiology, Jagiellonian University Medical College, 18 Czysta Str., 31-121 Cracow, Poland.

In recent decades, the interest in probiotics as diet supplements or drugs has increased. In order to determine a specific bacterial isolate to be probiotic, it is necessary to describe precisely its probiotic characteristics and taxonomic properties, including the strain level. Most of the well-known genotyping methods were designed for the commonly-found pathogenic bacteria. Read More

Ann Microbiol 2012 Jun 21;62(2):877-880. Epub 2011 Oct 21.

Department of Microbiology, Faculty of Biology, Adam Mickiewicz University, ul. Umultowska 89, 61-614 Poznań, Poland.

The aim of this study was to determine the presence of integron-bearing Gram-negative bacteria in the gut of a wild boar (Sus scrofa L.) shot in the buffer zone of a national park. Five Gram-negative strains of Escherichia coli, Serratia odorifera, Hafnia alvei and Pseudomonas sp. Read More

Ann Microbiol 2012 Jun 17;62(2):559-567. Epub 2011 Jun 17.

The introduction of rhizobacteria that tolerate heavy metals is a promising approach to support plants involved in phytoextraction and phytostabilisation. In this study, soil of a metal-mine wasteland was analyzed for the presence of metal-tolerant bacterial isolates, and the tolerance patterns of the isolated strains for a number of heavy metals and antibiotics were compared. Several of the multimetal-tolerant strains were tagged with a broad host range reporter plasmid (i. Read More

Ann Microbiol 2011 Dec 22;61(4):801-807. Epub 2011 Jan 22.

CAS in Marine Biology, Annamalai University, Parangipettai, 608502 India.

Marine waste is an abundant renewable source for the recovery of several value added metabolites with potential industrial applications. This study describes the production of chitinase on marine waste, with the subsequent use of the same marine waste for the extraction of antioxidants. A chitinase-producing bacterium isolated from seafood effluent was identified as Alcaligenes faecalis AU02. Read More

Ann Microbiol 2011 Dec 8;61(4):773-779. Epub 2011 Feb 8.

Faculty of Food Science and Engineering, Bioengineering in Food Industry Department, "Dunărea de Jos" University, 111 Domnească Street, 800201 Galaţi, Romania.

Response surface methodology and central composite design were used to optimize a biosynthesis medium for the production of xylanases by Streptomyces sp. P12-137 in submerged fermentation culture at pH 5.0, with wheat bran as substrate. Read More

Ann Microbiol 2011 Sep 21;61(3):553-562. Epub 2010 Dec 21.

We examined the rate of degradation of a benzene-toluene mixture in aerobic microcosms prepared with samples of an aquifer that lies below a petrochemical plant (SIReN, UK). Five samples exposed to different concentrations of benzene (from 0.6 to 317 mg l(-1)) were used. Read More

Ann Microbiol 2011 Jun 12;61(2):257-265. Epub 2010 Sep 12.

Four Gram-negative strains, E3_2001, EC1_2004, EC3_3502 and EC2_3502, previously isolated from soil samples, were subjected to comparative studies in order to select the best vinyl acetate degrader for waste gas treatment. Comparison of biochemical and physiological tests as well as the results of fatty acids analyses were comparable with the results of 16S rRNA gene sequence analyses. The isolated strains were identified as Pseudomonas putida EC3_2001, Pseudomonas putida EC1_2004, Achromobacter xylosoxidans EC3_3502 and Agrobacterium sp. Read More

Ann Microbiol 2010 Dec 28;60(4):615-622. Epub 2010 Jul 28.

School of Biosciences and Biotechnology , Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 Bangi, Selangor Malaysia.

Lipid biosynthesis and fatty acids composition of oleaginous zygomycetes, namely Cunninghamella bainieri 2A1, cultured in media with excess or limited nitrogen were quantitatively determined at different times of culture growth. Accumulation of lipids occurred even when the activity of NAD(+)-ICDH (β-Nicotinamide adenine dinucleotide-isocitrate dehydrogenase) was still detectable in both media. In C. Read More

Ann Microbiol 2010 Mar 6;60(1):121-127. Epub 2010 Feb 6.

In order to qualify the germicidal efficacy of ultraviolet (UV) disinfection system, we generally determine the reduction of viable bacteria after UV-C irradiation. However, the simple count of viable and cultivable bacteria in usual media cannot reflect whether or not the UV dose applied to disinfect water is sufficient to inactivate bacteria. Indeed, there is a bacterial mix in the UV-treated water: dead bacteria, viable and cultivable bacteria and viable but noncultivable bacteria (VBNC). Read More