Siberian Federal University 
- Issue
- Journal of Siberian Federal University. Biology. 2012 5 (2)
- Authors
- Zhila, Natalia O.; Prudnikova, Svetlana V.; Zadereev, Egor S.; Rogozin, Denis Yu.
- Contact information
- Zhila, Natalia O. : Siberian Federal University Institute of Biophysics of Siberian Branch of Russian Academy of Science , 41 Svobodny, Krasnoyarsk, 660041 Russia 50/50 Akademgorodok, Krasnoyarsk, 660036 Russia , e-mail: ; Prudnikova, Svetlana V. : Institute of Biophysics of Siberian Branch of Russian Academy of Science , 50/50 Akademgorodok, Krasnoyarsk, 660036 Russia; Zadereev, Egor S. : Siberian Federal University Institute of Biophysics of Siberian Branch of Russian Academy of Science , 41 Svobodny, Krasnoyarsk, 660041 Russia 50/50 Akademgorodok, Krasnoyarsk, 660036 Russia; Rogozin, Denis Yu. : Siberian Federal University Institute of Biophysics of Siberian Branch of Russian Academy of Science , 41 Svobodny, Krasnoyarsk, 660041 Russia 50/50 Akademgorodok, Krasnoyarsk, 660036 Russia
- Keywords
- Lake Shira; stratification; polyhydroxyalkanoates; degradation; molecular mass
- Abstract
The degradation of polyhydroxyalkanoate films was firstly studied in brackish Lake Shira at different depths, 3, 9, 13 and 20 meters, those corresponded to the layers of stratification. It is found that poly (3-hydroxybutyrate) and copolymer poly (3-hydroxybutyrate-co-3-hydroxyvalerate) with less crystallinity are destroyed with varying intensity. The maximum mass loss of polymer films and decrease in polymer molecular weight were registered at 3 m, in oxygenic epilimnion where temperature is the highest. The phenomenon of polymer films destruction were also found in the chemocline and anoxic low-temperature monimolimnion, at 20 m depth.
- Pages
- 210-215
- Paper at repository of SibFU
- https://elib.sfu-kras.ru/handle/2311/3079
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).