Изучено влияние солёности и рН среды на деградацию нефти тремя консорциумами термотолерантных нефтеокисляющих микроорганизмов. Установлено, что исследуемые консорциумы устойчивы к высокому содержанию NaCl в среде и обладают высокой нефтеокисляющей активностью. Так, за 14 суток культивирования степень утилизации нефти с 2% NaCl в среде составила 50,7-66,8%, с 5% – 65,5-72,8%, с 10% – 69,0-73,5%. Показана высокая деструкционная способность исследуемых консорциумов при разных значениях рН среды. Наибольшую активность они проявили в щелочной среде (рН 8 и 9), степень деструкции нефти при этих значениях составила свыше 80%. В кислой среде (рН 5 и 6) было утилизировано 57,1-67,6% и 51,2-56,9% нефти, при рН 7 – 58,7-62,9%.
The influence of salinity and pH of the medium on oil degradation by three consortia of thermotolerant oil-oxidizing microorganisms was studied. It was found that the studied consortia are resistant to high NaCl content in the medium and have high oil-oxidizing activity. So for 14 days of cultivation, the degree of utilization of oil with 2% NaCl in the medium was 50.7-66.8%, with 5% - 65.5-72.8%, with 10% - 69.0-73.5%. The high destructive ability of the studied consortia at different pH values of the medium is shown. They demonstrated the greatest activity in an alkaline environment (pH 8 and 9), the degree of oil destruction at these values was over 80%. In an acidic environment (pH 5 and 6), 57.1-67.6% and 51.2-56.9% of oil were utilized, at pH 7 - 58.7-62.9%.
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