Use of biosurfactant preparation of Rhodococcus erythropolis IMV Ac-5017 for remediation of water polluted with oil and heavy metals

Abstract

The results of present work showed that the oil destruction degree in water treated with surfactant preparation of Rhodococcus erythropolis IMV Ac-5017 have increased significantly in presence of 0.01 mM Cu2+ (55-70 %) compared to the samples without copper cations (30 %). It was determined that the addition of 0.050.1 mM of Cu2+ into the media with fried sunflower oil and glucose or with n- hexadecane led to increasing surfactant synthesis by strain IMV Ac-5017 by 40 % compared to the medium without metal. It was shown that the activity of alcanehydroxylase of IMV Ac-5017 strain increased by 1.5 and 2 fold in the presence of 0.05 and 0.1 mM Cu2+, respectively, in the reaction mixture.