Abiotic Hydrolysis and Compostability of Blends Based on Cassava Starch and Biodegradable Polymers

Taiatele, Ivan; Bosco, Tatiane Cristina Dal; Faria-Tischer, Paula C.S.; Bilck, Ana Paula; Yamashita, Fábio; Bertozzi, Janksyn; Michels, Roger Nabeyama; Mali, Suzana

doi:10.1007/s10924-019-01541-9

Cited by 19 publications

(11 citation statements)

References 22 publications

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“…Notably, during the melting process of the starch, color changes can occur due to the loss of structure and crystallinity of the starch granules, becoming an opaque gel. The biaxial stretching and the melting favored the formation of crystalline areas in the films produced by blown extrusion, which can also reduce the transparency of the films (Taiatele et al., 2019), which probably also occurred in this research.…”

Section: Resultsmentioning

confidence: 99%

“…The soil‐biodegradability of PBAT is provided by the butylene group (Witt, Müller, & Deckwer, 1997) and is estimated to occur in a short period of time, just less than 2 years (Touchaleaume et al., 2016). Studies indicate that the mixture of PBAT with natural polymers, such as starch, can increase the degradation rate of these polymers (Taiatele et al., 2019). Despite its relatively expensive cost, comparing to other polyethylenes, PBAT/starches blends can be considered a promising alternative for reducing costs and increasing the biodegradation rate of this synthetic polymer.…”

Section: Introductionmentioning

confidence: 99%

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Influence of pinhão starch and natural extracts on the performance of thermoplastic cassava starch/PBAT extruded blown films as a technological approach for bio‐based packaging material

Müller

Carpiné

Yamashita

et al. 2020

Journal of Food Science

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Films were produced using the blown extrusion method from blends made with cassava and pinhão thermoplastic starch, compostable polyester (poly(butylene adipate co‐terephthalate, PBAT) and natural extracts (rosemary and green tea). The effect of the incorporation of the extracts and the type of starch added in the film properties were investigated following the mixture design (23) approach. Regression models and response surface curves were generated to predict the film properties. The effect of the cold storage (6 °C and 17% of humidity relative, for 60 days) on the film properties was also investigated in order to simulate future applications. All the properties were mainly influenced by the extract type. The incorporation of the extracts decreased the lightness parameter and the films produced with green tea extract were more opaque than those made with rosemary. Starch/rosemary blends were more flexible, while the extract type did not have a significant effect on tensile strength (TS). Film elongation (ELO) ranged from 520% to 719% and might be comparable to some synthetic polymers. The water vapor permeability was improved in approximately 14% with addition of the extracts. The storage conditions, on the one hand, increased the TS, elastic modulus, and opacity of films and, on the other hand, decreased the elongation parameter. The thermal stability of films was not modified by adding extracts or varying the starch type. The results demonstrated that pinhão/cassava/PBAT blends and the natural extracts are a good alternative matrix to produce packagings with adequate mechanical and barrier properties. Practical Application Extruded films produced from cassava or pinhão starch, poly(butylene adipate co‐terephthalate) (PBAT) and natural extracts show technological potential to be used as active packaging for food products. Pinhão starch is a great alternative substitute to cassava starch and the incorporation of the commercial compostable polymer (PBAT) is necessary in order to confer suitable mechanical properties to extrusion process. The extrusion blown method, a process widely used by plastic industries, allows the scale‐up of bio‐based packagings for industrial scale.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of pinhão starch and natural extracts on the performance of thermoplastic cassava starch/PBAT extruded blown films as a technological approach for bio‐based packaging material

Müller

Carpiné

Yamashita

et al. 2020

Journal of Food Science

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“…To accelerate the degradation of PLA in a seawater environment, starch and PLA can be mixed to promote the degradation of PLA using the rapid degradation of starch 56,57 . Since the addition of starch enhances the water absorption of PLA‐based composites, the addition of starch will accelerate the degradation of PLA 58,59 . The increase of starch also disrupts the crystal structure of PLA thereby accelerating the degradation of PLA 32 .…”

Section: Synthesis and Degradation Of Plamentioning

confidence: 99%

A review of research and application of polylactic acid composites

Lin

Liu

et al. 2022

J of Applied Polymer Sci

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Polylactic acid (PLA) is a thermoplastic polyester that has received widespread attention for its environmentally friendly origin and excellent performance, and its potential to address the current problems of severe white pollution and scarcity of petroleum resources. This article focuses on the synthesis, modification, degradation and application of PLA. The main focus is on the modification of PLA with different environmentally friendly materials (natural organic materials, biodegradable polymers, inorganic minerals) in blends for defects such as the brittleness of PLA. In addition, the applications of PLA composites in the fields of construction, medical, packaging and oil and water separation are also introduced, which hopefully will provide some help to the promotion of PLA.

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“…61 Under controlled composting conditions at 58 °C (ISO 14855-2), PBS degrades slower with a longer incubation time compared to PεCL. 62 The intermediate 81 PLA + 3% microcellulose fibrils, 82 PLA + 5% clay, 83 PεCL at 25 °C, 84 PLA/PεCL/Thermoplastic starch (TPS) 60/10/30, 85 PεCL/HC 90/10, 86 PBAT/ PLA 60/40, 87 PBSA, 88 PBS, 89 PLA/TPS 50/50 and PBAT/TPS 43/57, 90 PBAT + 3% clay, 91 PHB/PεCL 75/25, 92 PHB, PHBV20, PHBV40, 93 PHB/cellulose 55/45, 94 cellulose, 82 PHBV + 3% clay, 91 PLA/TPS 60/40, 85 PBAT/TPS 60/40, 95 TPS, 96 rice starch, 97 PLA, and PLA/PHB 75/25 at 25 °C, 98 PεCL, 99 PεCL/cellulose acetate 80/20, 99 PεCL + 5% grape seed extract, 100 and PBS, PBS + 10% jute fibers. products in PBS degradation are 1,4-butanediol and succinic acid, which are readily metabolized by microorganisms through the citric acid cycle.…”

Section: ■ Compostability Of Polymersmentioning

confidence: 99%

“…(b) Biodegradation of different polymers and their blends as per different test methods. The data was taken from PLA at 65 °C, PLA/PεCL 80/20, PLA/PHB 75/25, PLA + 3% microcellulose fibrils, PLA + 5% clay, PεCL at 25 °C, PLA/PεCL/Thermoplastic starch (TPS) 60/10/30, PεCL/HC 90/10, PBAT/PLA 60/40, PBSA, PBS, PLA/TPS 50/50 and PBAT/TPS 43/57, PBAT + 3% clay, PHB/PεCL 75/25, PHB, PHBV20, PHBV40, PHB/cellulose 55/45, cellulose, PHBV + 3% clay, PLA/TPS 60/40, PBAT/TPS 60/40, TPS, rice starch, PLA, and PLA/PHB 75/25 at 25 °C, PεCL, PεCL/cellulose acetate 80/20, PεCL + 5% grape seed extract, and PBS, PBS + 10% jute fibers …”

Section: Compostability Of Polymersmentioning

confidence: 99%

Design and Control of Compostability in Synthetic Biopolyesters

Samantaray

Little

Wemyss

et al. 2021

ACS Sustainable Chem. Eng.

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The aerobic composting and anaerobic digestion of plastics is a promising route to recovering the multidimensional value from biodegradable single-use plastics. At present, the collection, separation, and management of biodegradable plastic waste are extremely challenging, and the majority of these plastics still end up in landfills or incineration facilities. This is because not all biodegradable plastics can be treated using organic waste management options (composting). In addition, end-users at a domestic and industrial level are often unaware of the compostability potential of biodegradable plastics, which results in the mismanagement of these types of plastic. A greater understanding of the compostability of biodegradable plastics will generate the required knowledge base for interventions that support their market penetration, use, and proper management. In this review, we clarify the concepts of biodegradability and compostability in bioplastics, in particular commercial synthetic biopolyesters, which have increasing technical and economic importance, and discuss how macromolecular design, blending, and additives can be used to modify their compostability. Future trends on the uptake of compostable and biodegradable bioplastics are also discussed.

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Abiotic Hydrolysis and Compostability of Blends Based on Cassava Starch and Biodegradable Polymers

Cited by 19 publications

References 22 publications

Influence of pinhão starch and natural extracts on the performance of thermoplastic cassava starch/PBAT extruded blown films as a technological approach for bio‐based packaging material

Influence of pinhão starch and natural extracts on the performance of thermoplastic cassava starch/PBAT extruded blown films as a technological approach for bio‐based packaging material

A review of research and application of polylactic acid composites

Design and Control of Compostability in Synthetic Biopolyesters

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