Izvestiya of Saratov University.
ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)

прирост биомассы

A study of the biological and functional properties of microorganisms with high resistance to manganese (II)

The issue of water treatment of the central water supply, as well as wastewater, from excessive content of heavy metals (HMs) remains relevant at the present time. The presence of heavy metals, even in trace amounts, has a negative impact not only on the environment, but also on all human organic systems. At the moment, iron and manganese are among the main pollutants entering the human body via drinking water.

Изучение биологических и функциональных свойств микроорганизмов с высокой устойчивостью к марганцу (II)

Вопрос очистки вод центрального водоснабжения, а также сточных вод, от избыточного содержания тяжёлых металлов (ТМ) остаётся актуальным и в настоящее время. Присутствие ТМ даже в следовых количествах, оказывает отрицательное воздействие не только на окружающую среду, но и на все системы органов человека. На данный момент к числу приоритетных поллютантов, поступающих в организм человека с питьевой водой, относятся железо и марганец.

A Study of Iron-oxidizing Microorganisms for Possible Use in Biotechnology of Water Purification

The ability of a variety of bacteria isolated from soil samples with high levels of magnetism of the city Mednogorsk to oxidize iron (II) in conditions of periodic cultivation in a liquid medium was studied. Investigating the increase in total biomass using its wet weight and analyzing its absolute bacterial biomass growth after 7 and 14 days of cultivation resulted in the identification of two microbial isolates with maximum growth rates. The wet biomass weight of these isolates (69.3 and 69.5) was 15.3 and 14.7 g/l after 14 days of cultivation.