Enzymatic degradation of poly (butylene adipate co-terephthalate) (PBAT) copolymer using lipase B from Candida antarctica (CALB) and effect of PBAT on plant growth

Kanwal, Aqsa; Zhang, Min; Sharaf, Faisal; Li, Chengtao

doi:10.1007/s00289-021-03946-w

Cited by 59 publications

(30 citation statements)

References 21 publications

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“…There was also a shift of the 1268 cm À1 peak to 1265 cm À1 , which corresponds to ( C O ), belonging to the ( C O ) groups connected to the benzene ring in PBAT (Kanwal et al, 2021). These bands confirmed the presence of PBAT on all film formulations.…”

Section: Fourier Transform Infrared-driftmentioning

confidence: 55%

“…Also, it is observed a typical peak in the 1710 cm −1 band, referring to a CO stretch (Mohanty & Nayak, 2009; Olivato et al, 2011). There was also a shift of the 1268 cm −1 peak to 1265 cm −1 , which corresponds to (CO), belonging to the (CO) groups connected to the benzene ring in PBAT (Kanwal et al, 2021). These bands confirmed the presence of PBAT on all film formulations.…”

Section: Resultsmentioning

confidence: 99%

“…The band near 2920 cm À1 corresponds to the C H stretch (Santos et al, 2014). The presence of microalgae biomass could have influenced the shift of the absorption bands representing the asymmetric methylene ( CH 2 ) stretching vibration, located at 2950 cm À1 in pure PBAT and shifted for 2920 cm À1 (Kanwal et al, 2021). Also, it is observed a typical peak in the 1710 cm À1 band, referring to a C O stretch (Mohanty & Nayak, 2009;Olivato et al, 2011).…”

Section: Fourier Transform Infrared-driftmentioning

confidence: 99%

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Feasibility of production starch/poly(butylene adipate‐co‐terephthalate) biodegradable materials with microalgal biomass by blown film extrusion

Gallo-García

Peron-Schlosser

Carpiné

et al. 2022

J Food Process Engineering

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This research aimed to develop blends of corn starch and poly(butylene adipate-coterephthalate) (PBAT) films by blown film extrusion with the addition of biomass of Chlorella pyrenoidosa (CP). Two ultrasound tracts disrupted CP biomass: ultrasound bath and ultrasonic probe. The influence of CP biomass and disrupted CP biomass on the physical, mechanical, barrier, structural, and thermal properties of starch/PBAT films was evaluated. The film with higher content (5.0%) of CP biomass showed better values in tensile strength (TS) (4.37 MPa) and elongation (88.43%), and lower water vapor permeability (WVP) (5.19 Â 10 À11 g m À1 s À1 Pa À1 ) than the film incorporated with disrupted CP biomass. The ultrasound treatment applied to the cell disruption of the microalgae did not present improvements in the properties of the films. In this context, the cell disruption of CP biomass by ultrasound for incorporation into biodegradable films was not feasible. However, it was possible to produce starch/PBAT/microalgae films with potential application as food packaging due to natural bio-pigmentation's protection system against ultraviolet light. Practical ApplicationsFilms produced by blown extrusion from starch, PBAT, and CP microalgae biomass have the technological potential to be used as packaging for food products. Starch and PBAT blends are widely studied. The incorporation of PBAT is necessary to confer adequate mechanical properties to the extruded material. The plastic industries already use the blown extrusion method, allowing biodegradable packaging development on an industrial scale.

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Section: Fourier Transform Infrared-driftmentioning

confidence: 55%

Section: Resultsmentioning

confidence: 99%

Section: Fourier Transform Infrared-driftmentioning

confidence: 99%

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Feasibility of production starch/poly(butylene adipate‐co‐terephthalate) biodegradable materials with microalgal biomass by blown film extrusion

Gallo-García

Peron-Schlosser

Carpiné

et al. 2022

J Food Process Engineering

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“…Furthermore, the measured enthalpy of fusion (Δ H m c ) ranged from 12.0 to 13.8 J/g. This variation in Δ H m c can be attributed to changes in the organization of the crystalline phase in the material 73 . The crystallinity fraction ( X c ) also presented slight changes, ranging from 10.5% (T1) to 12.1% (T4).…”

Section: In Vitro Degradation Of 3d Pbat Scaffoldsmentioning

confidence: 95%

“…This variation in ΔH m c can be attributed to changes in the organization of the crystalline phase in the material. 73 The crystallinity fraction (X c ) also presented slight changes, ranging from 10.5% (T1) to 12.1% (T4). Although the degradation period was only 42 days, crystalline order might be affected during this period since the values of X c are directly related to the organization and crystalline structure of the material, which the degradation process might influence.…”

Section: In Vitro Degradation Of 3d Pbat Scaffoldsmentioning

confidence: 97%

Effect of angular variation and in vitro degradation on mechanical properties of PBAT 3D scaffolds

de Barros,

de Souza Balbinot,

Vassoler

et al. 2024

J of Applied Polymer Sci

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The customization of polymeric prototypes is available to meet the specific needs of individual patients, considering tissue location and patient‐specific characteristics. Poly (butylene adipate‐co‐terephthalate) (PBAT) has shown great promise among various polymers in this scenario due to its biodegradability and processability properties. However, the effect of geometry changes on the mechanical properties of PBAT 3D scaffolds and their mechanical stability after in vitro degradation are crucial to determining the final application. This study focuses on the structural, morphological, and mechanical characterization of PBAT prototypes with different architectures and evaluating their mechanical properties before and after in vitro degradation. Three‐dimensional structures were 3D printed with rectilinear deposition angles of 15°, 30°, 45°, 60°, 75°, and 90°. Mechanical tests revealed that the prototype architecture influenced the stiffness, elongation, and maximum tension, where a greater resistance was observed for filaments containing the lowest angles. The thermal stability of PBAT remained unaffected either by reprocessing or hydrolytic degradation; however, in vitro degradation affected the mechanical behavior by increasing the stiffness and decreasing the elongation of the scaffold. Biological assays have demonstrated the nontoxic nature of PBAT and its potential to promote cell viability at a rate of 95%. These findings underscore the possibility of optimizing the PBAT design and structure to tune the mechanical properties and contribute to advancing tissue engineering strategies.

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Biodegradable polybutylene adipate terephthalate foams: Investigating sustainability via reprocessing and green solvent

de Macedo Rooweder Lima,

Hobbenschot,

Mukherjee

et al. 2024

J of Applied Polymer Sci

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Incorporating reprocessing, recycling, and sustainable processes and materials is essential for a circular economy. Reprocessing and recycling are related since both help minimize wastage and produce a sustainable regenerative economy. However, polymers might undergo degradation depending on the recycling process, reducing their lifespan. In this study, polybutylene adipate terephthalate (PBAT) undergoes repetitive reprocessing under varied temperatures, times, and shear rates to investigate the evolution of mechanical, chemical, and thermal properties. Furthermore, foaming experiments are conducted using supercritical carbon dioxide (scCO2) on reprocessed samples to examine changes in the properties and morphology of the foam. The significance of reprocessing PBAT is divided into environmental, temperature, and processing effects. Environmental conditions impact the results where no oxidation effects are noticed in the 2‐hour test, while 7 days of humidity exposure lead to a tenfold reduction in polymer viscosity. Different processing techniques reduce the molecular weight of PBAT and alter its polydispersity. Specifically, the number average molecular weight (Mn) decreases from an initial 53 to 37 kDa after processes like extrusion or mixing. However, elongation at break and ultimate strength of PBAT remain unchanged after high‐shear extrusion processing. Additionally, PBAT foam morphology evolves over 5 cycles, leading to smaller pores and reducing compressive modulus.

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Enzymatic degradation of poly (butylene adipate co-terephthalate) (PBAT) copolymer using lipase B from Candida antarctica (CALB) and effect of PBAT on plant growth

Cited by 59 publications

References 21 publications

Feasibility of production starch/poly(butylene adipate‐co‐terephthalate) biodegradable materials with microalgal biomass by blown film extrusion

Feasibility of production starch/poly(butylene adipate‐co‐terephthalate) biodegradable materials with microalgal biomass by blown film extrusion

Effect of angular variation and in vitro degradation on mechanical properties of PBAT 3D scaffolds

Biodegradable polybutylene adipate terephthalate foams: Investigating sustainability via reprocessing and green solvent

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