Metal-oxidizing bacteria may play a key role in the submarine weathering of volcanic rocks and the formation of ferromanganese crusts. Putative fossil microbes encrusted in Mn oxide phases are commonly observed on volcanic glasses recovered from the deep ocean; however, no known Mn(II)-oxidizing bacteria have been directly identified or cultured from natural weathered basalts. To isolate epilit...

The temperature-driven adaptation of the bacterial community in peat was studied, by altering temperature to simulate self-heating and a subsequent return to mesophilic conditions. The technique used consisted of extracting the bacterial community from peat using homogenization-centrifugation and measuring the rates of thymidine (TdR) or leucine (Leu) incorporation by the extracted bacterial co...

Psychrotrophic bacteria are capable of developing over a wide temperature range and they can grow at temperatures close to or below freezing. This ability requires specific adaptative strategies in order to maintain membrane fluidity, the continuance of their metabolic activities, and protein synthesis at low temperature. A cold-shock response has been described in several psychrotrophic bacter...

This study aimed to determine the changes in quality of sous vide meagre (Argyrosomus regius) fillets that have been treated with oregano and rosemary extracts during cold storage (4±1 °C). Saturated fatty acids, monounsaturated polyunsaturated acids dominant fish were found be palmitic acid, oleic linoleic respectively. pH values fluctuated samples. It was determined total volatile basic nitro...

The article presents the results of microbiological studies spring water sources Priozersky district Leningrad region, conducted according to standards new SanPiN. high interest population in use as a source drinking is noted, an analysis modern research foreign colleagues waters using molecular-genetic methods presented. value high-tech and traditional sanitary-microbiological shown. Based on ...

Bioleaching processes for extraction of Cu and Mo from molybdenite cons. are more environmentally friendly and consume less energy than conventional technologies, yet less economically efficient. One necessary step towards arriving at a cost-effective bioleaching process is using appropriate methodology to optimize pertinent factors in such processes. To this end, the present study employed Res...

key dissimilarities between thermophilic and mesophilic anaerobic digestion of waste activated sludge (was) were experimentally studied in this research. typical was with total solids (ts) concentrations of 30 and 60 g/l were digested anaerobically in a batch digester at mesophilic and thermophilic temperatures. solids reduction, total cod changes, the production of different volatile fatty ...

Microbiological examination of food is one the most important control processes in production and trade. In that way, we provide safe on market, but also consumption foods prevention diseases can be transmitted by contaminated with microorganisms. The aim this study was to examine microbiological status minced meat preparations period from years 2014 2020. examinations included Salmonella spp.,...