TY  - JOUR
AU  - Sourkouni, Georgia
AU  - Jeremić, Sanja
AU  - Kalogirou, Charalampia
AU  - Höfft, Oliver
AU  - Nenadović, Marija
AU  - Janković, Vukašin
AU  - Rajasekaran, Divya
AU  - Pandis, Pavlos
AU  - Padamati, Ramesh
AU  - Nikodinović-Runić, Jasmina
AU  - Argirusis, Christos
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1804
AB  - It is well acknowledged that microplastics are a major environmental problem and that the use of plastics, both petro- and bio- based, should be reduced. Nevertheless, it is also a necessity to reduce the amount of the already spread plastics. These cannot be easily degraded in the nature and accumulate in the food supply chain with major danger for animals and human life. It has been shown in the literature that advanced oxidation processes (AOPs) modify the surface of polylactic acid (PLA) materials in a way that bacteria more efficiently dock on their surface and eventually degrade them. In the present work we investigated the influence of different AOPs (ultrasounds, ultraviolet irradiation, and their combination) on the biodegradability of PLA films treated for different times between 1 and 6 h. The pre-treated samples have been degraded using a home model compost as well as a cocktail of commercial enzymes at mesophilic temperatures (37 °C and 42 °C, respectively). Degradation degree has been measured and degradation products have been identified. Excellent degradation of PLA films has been achieved with enzyme cocktail containing commercial alkaline proteases and lipases of up to 90% weight loss. For the first time, we also report valorization of PLA into bacterial nanocellulose after enzymatic hydrolysis of the samples.
T2  - World Journal of Microbiology and Biotechnology
T2  - World Journal of Microbiology and BiotechnologyWorld J Microbiol Biotechnol
T1  - Study of PLA pre-treatment, enzymatic and model-compost degradation, and valorization of degradation products to bacterial nanocellulose
IS  - 6
SP  - 161
VL  - 39
DO  - 10.1007/s11274-023-03605-4
ER  - 

@article{
author = "Sourkouni, Georgia and Jeremić, Sanja and Kalogirou, Charalampia and Höfft, Oliver and Nenadović, Marija and Janković, Vukašin and Rajasekaran, Divya and Pandis, Pavlos and Padamati, Ramesh and Nikodinović-Runić, Jasmina and Argirusis, Christos",
year = "2023",
abstract = "It is well acknowledged that microplastics are a major environmental problem and that the use of plastics, both petro- and bio- based, should be reduced. Nevertheless, it is also a necessity to reduce the amount of the already spread plastics. These cannot be easily degraded in the nature and accumulate in the food supply chain with major danger for animals and human life. It has been shown in the literature that advanced oxidation processes (AOPs) modify the surface of polylactic acid (PLA) materials in a way that bacteria more efficiently dock on their surface and eventually degrade them. In the present work we investigated the influence of different AOPs (ultrasounds, ultraviolet irradiation, and their combination) on the biodegradability of PLA films treated for different times between 1 and 6 h. The pre-treated samples have been degraded using a home model compost as well as a cocktail of commercial enzymes at mesophilic temperatures (37 °C and 42 °C, respectively). Degradation degree has been measured and degradation products have been identified. Excellent degradation of PLA films has been achieved with enzyme cocktail containing commercial alkaline proteases and lipases of up to 90% weight loss. For the first time, we also report valorization of PLA into bacterial nanocellulose after enzymatic hydrolysis of the samples.",
journal = "World Journal of Microbiology and Biotechnology, World Journal of Microbiology and BiotechnologyWorld J Microbiol Biotechnol",
title = "Study of PLA pre-treatment, enzymatic and model-compost degradation, and valorization of degradation products to bacterial nanocellulose",
number = "6",
pages = "161",
volume = "39",
doi = "10.1007/s11274-023-03605-4"
}

Sourkouni, G., Jeremić, S., Kalogirou, C., Höfft, O., Nenadović, M., Janković, V., Rajasekaran, D., Pandis, P., Padamati, R., Nikodinović-Runić, J.,& Argirusis, C.. (2023). Study of PLA pre-treatment, enzymatic and model-compost degradation, and valorization of degradation products to bacterial nanocellulose. in World Journal of Microbiology and Biotechnology, 39(6), 161.
https://doi.org/10.1007/s11274-023-03605-4

Sourkouni G, Jeremić S, Kalogirou C, Höfft O, Nenadović M, Janković V, Rajasekaran D, Pandis P, Padamati R, Nikodinović-Runić J, Argirusis C. Study of PLA pre-treatment, enzymatic and model-compost degradation, and valorization of degradation products to bacterial nanocellulose. in World Journal of Microbiology and Biotechnology. 2023;39(6):161.
doi:10.1007/s11274-023-03605-4 .

Sourkouni, Georgia, Jeremić, Sanja, Kalogirou, Charalampia, Höfft, Oliver, Nenadović, Marija, Janković, Vukašin, Rajasekaran, Divya, Pandis, Pavlos, Padamati, Ramesh, Nikodinović-Runić, Jasmina, Argirusis, Christos, "Study of PLA pre-treatment, enzymatic and model-compost degradation, and valorization of degradation products to bacterial nanocellulose" in World Journal of Microbiology and Biotechnology, 39, no. 6 (2023):161,
https://doi.org/10.1007/s11274-023-03605-4 . .