Siberian Federal University

Issue

Journal of Siberian Federal University. Biology. 2012 5 (3)

Authors

Prudnikova, Svetlana V.; Korobikhina, Ksenia I.; Boyandin, Anatoly N.; Volova, Tatiana G.

Contact information

Prudnikova, Svetlana V. : Siberian Federal University , 79 Svobodny av., Krasnoyarsk, 660041 Russia; Korobikhina, Ksenia I. : Siberian Federal University , 79 Svobodny av., Krasnoyarsk, 660041 Russia; Boyandin, Anatoly N. : Siberian Federal University Institute of Biophysics of SB RAS , 79 Svobodny av., Krasnoyarsk, 660041 Russia Akademgorodok, Krasnoyarsk, 660036 Russia; Volova, Tatiana G. : Siberian Federal University Institute of Biophysics of SB RAS , 79 Svobodny av., Krasnoyarsk, 660041 Russia Akademgorodok, Krasnoyarsk, 660036 Russia

Keywords

polyhydroxyalkanoates; biodegradation; degrading microorganisms

Abstract

For the first time, PHA biodegradation was studied in microecosystems situated in different regions and under different climate conditions. The study showed that the time necessary for the polymer weight to decrease to a half of its initial weight, could vary significantly, depending on the number, species composition, and physiological activity of microbial communities which are determined, in particular, by the specific properties of the natural environment, temperature conditions and soil moisture. Biodegradation behavior also depends on PHA composition (PHA copolymers are degraded faster in Siberian soils while homopolymers are degraded at a higher rate in the tropical soils), production method, and the shape of the polymer device (2D specimens are degraded faster than 3D pressed ones). Differences in the species composition of the identified major PHA degrading microorganisms account for the particular PHA biodegradation behavior in different ecosystems.

Pages

311-321

Paper at repository of SibFU

https://elib.sfu-kras.ru/handle/2311/3158

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).