Enhanced enzymatic depolymerization of polylactic acid (PLA) through plasma pretreatment and subsequent conversion to biopolymer
Samo za registrovane korisnike
2023
Autori
Milovanović, JelenaNenadović, Marija
Pantelić, Brana
Ponjavić, Marijana
Sourkouni, Georgia
Kalogirou, Charalampia
Argirusis, Christos
Nikodinović-Runić, Jasmina
Konferencijski prilog (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Polylactic acid (PLA) serves as a bio-based alternative to fossil-based single-use plastics, biodegrading at high temperatures (58°C) and humidity during industrial composting. Despite enzymes' ability to catalyze reactions at near-ambient temperatures, polymer rigidity can impede efficient depolymerization. To address these challenges, we conducted a study of enzymatic PLA degradation at 42°C combined with green plasma pretreatment to help disrupt the crystalline regions within the polymer. Here we report the effect of length of plasma pretreatment on the rate of PLA degradation by enzyme mix containing commercial enzymes with reported PLA degrading activity. Results indicate that a 5-minute plasma pretreatment significantly enhances enzymatic degradation, with a 16% weight loss achieved in 4 weeks—a two-fold increase compared to untreated PLA. Furthermore, we report the valorization of PLA into bacterial nanocellulose after enzymatic hydrolysis of the samples.
Ključne reči:
biomaterialsIzvor:
ESAB E-Congress, 2023Izdavač:
- European Society of Applied Biocatalysis
Finansiranje / projekti:
- BioECOLogics - Value-added biologics through eco-sustainable routes (RS-ScienceFundRS-Ideje-7730810)
- Horizon 2020 No.870929
URI
https://esabweb.org/E_CONGRESS/Poster+Programme/Day/Online/All+day/Enhanced+enzymatic+depolymerization+of+polylactic+acid+%28PLA%29+through+plasma+pretreatment+and+subsequent+conversion+to+biopolymer.htmlhttps://imagine.imgge.bg.ac.rs/handle/123456789/2232
Kolekcije
Institucija/grupa
Institut za molekularnu genetiku i genetičko inženjerstvoTY - CONF AU - Milovanović, Jelena AU - Nenadović, Marija AU - Pantelić, Brana AU - Ponjavić, Marijana AU - Sourkouni, Georgia AU - Kalogirou, Charalampia AU - Argirusis, Christos AU - Nikodinović-Runić, Jasmina PY - 2023 UR - https://esabweb.org/E_CONGRESS/Poster+Programme/Day/Online/All+day/Enhanced+enzymatic+depolymerization+of+polylactic+acid+%28PLA%29+through+plasma+pretreatment+and+subsequent+conversion+to+biopolymer.html UR - https://imagine.imgge.bg.ac.rs/handle/123456789/2232 AB - Polylactic acid (PLA) serves as a bio-based alternative to fossil-based single-use plastics, biodegrading at high temperatures (58°C) and humidity during industrial composting. Despite enzymes' ability to catalyze reactions at near-ambient temperatures, polymer rigidity can impede efficient depolymerization. To address these challenges, we conducted a study of enzymatic PLA degradation at 42°C combined with green plasma pretreatment to help disrupt the crystalline regions within the polymer. Here we report the effect of length of plasma pretreatment on the rate of PLA degradation by enzyme mix containing commercial enzymes with reported PLA degrading activity. Results indicate that a 5-minute plasma pretreatment significantly enhances enzymatic degradation, with a 16% weight loss achieved in 4 weeks—a two-fold increase compared to untreated PLA. Furthermore, we report the valorization of PLA into bacterial nanocellulose after enzymatic hydrolysis of the samples. PB - European Society of Applied Biocatalysis C3 - ESAB E-Congress T1 - Enhanced enzymatic depolymerization of polylactic acid (PLA) through plasma pretreatment and subsequent conversion to biopolymer UR - https://hdl.handle.net/21.15107/rcub_imagine_2232 ER -
@conference{ author = "Milovanović, Jelena and Nenadović, Marija and Pantelić, Brana and Ponjavić, Marijana and Sourkouni, Georgia and Kalogirou, Charalampia and Argirusis, Christos and Nikodinović-Runić, Jasmina", year = "2023", abstract = "Polylactic acid (PLA) serves as a bio-based alternative to fossil-based single-use plastics, biodegrading at high temperatures (58°C) and humidity during industrial composting. Despite enzymes' ability to catalyze reactions at near-ambient temperatures, polymer rigidity can impede efficient depolymerization. To address these challenges, we conducted a study of enzymatic PLA degradation at 42°C combined with green plasma pretreatment to help disrupt the crystalline regions within the polymer. Here we report the effect of length of plasma pretreatment on the rate of PLA degradation by enzyme mix containing commercial enzymes with reported PLA degrading activity. Results indicate that a 5-minute plasma pretreatment significantly enhances enzymatic degradation, with a 16% weight loss achieved in 4 weeks—a two-fold increase compared to untreated PLA. Furthermore, we report the valorization of PLA into bacterial nanocellulose after enzymatic hydrolysis of the samples.", publisher = "European Society of Applied Biocatalysis", journal = "ESAB E-Congress", title = "Enhanced enzymatic depolymerization of polylactic acid (PLA) through plasma pretreatment and subsequent conversion to biopolymer", url = "https://hdl.handle.net/21.15107/rcub_imagine_2232" }
Milovanović, J., Nenadović, M., Pantelić, B., Ponjavić, M., Sourkouni, G., Kalogirou, C., Argirusis, C.,& Nikodinović-Runić, J.. (2023). Enhanced enzymatic depolymerization of polylactic acid (PLA) through plasma pretreatment and subsequent conversion to biopolymer. in ESAB E-Congress European Society of Applied Biocatalysis.. https://hdl.handle.net/21.15107/rcub_imagine_2232
Milovanović J, Nenadović M, Pantelić B, Ponjavić M, Sourkouni G, Kalogirou C, Argirusis C, Nikodinović-Runić J. Enhanced enzymatic depolymerization of polylactic acid (PLA) through plasma pretreatment and subsequent conversion to biopolymer. in ESAB E-Congress. 2023;. https://hdl.handle.net/21.15107/rcub_imagine_2232 .
Milovanović, Jelena, Nenadović, Marija, Pantelić, Brana, Ponjavić, Marijana, Sourkouni, Georgia, Kalogirou, Charalampia, Argirusis, Christos, Nikodinović-Runić, Jasmina, "Enhanced enzymatic depolymerization of polylactic acid (PLA) through plasma pretreatment and subsequent conversion to biopolymer" in ESAB E-Congress (2023), https://hdl.handle.net/21.15107/rcub_imagine_2232 .