Baked Foams Based on Cassava Starch Coated with Polyvinyl Alcohol with a Higher Degree of Hydrolysis

Carvalho, Fabíola Azanha de; Bilck, Ana Paula; Yamashita, Fábio; Mali, Suzana

doi:10.1007/s10924-017-1046-x

Cited by 14 publications

(3 citation statements)

References 21 publications

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“…In the particular case of trays for food packaging, several studies have looked into biosourced alternatives, with emphasis on the combination of starch with different types of lignocellulosic fibers [2,3,4,5,6,7]. Production typically involves hot-pressing, with temperatures usually ranging between 130 to 220 °C, and the pressing times between 120 s to 20 min [2,3,4,6,7,8,9,10,11,12,13]. The different production parameters depend on the water content of the mixture, the pressing temperature, its density and the pressing apparatus.…”

Section: Introductionmentioning

confidence: 99%

Biosourced Disposable Trays Made of Brewer’s Spent Grain and Potato Starch

et al. 2019

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Single-use plastic items made of non-biodegradable and fossil-based materials have been identified as a major environmental problem in modern society. Food packaging materials represent an important fraction of these, and replacement with biosourced, sustainable and low-cost alternatives, is a key priority. In the present work, and for the first time, trays suitable for some food packaging applications were produced by the hot-pressing of brewer’s spent grains (BSG, a low added-value byproduct of the beer industry), bound with potato starch. Expanded polystyrene (EPS) trays were used as reference, since this material has been widely used in food packaging trays. The results demonstrated that all trays produced with varying proportions of BSG and potato starch have appropriate flexural strength, with values ranging between 1.51 ± 0.32 MPa, for 80% BSG content, and 2.62 ± 0.46 MPa, for 40% BSG content, which is higher than for EPS, 0.64 ± 0.50 MPa. Regardless of BSG content, flexural strength and modulus decreased significantly after contact with water, due to starch plasticization, attaining values below EPS. Trays produced with 60% BSG, and also with the addition of chitosan and glyoxal presented the highest flexural strength, both before and after contact with water, 3.75 ± 0.52 MPa and 0.44 ± 0.11 MPa, respectively. The latter is reasonably close to the reference value obtained for EPS.

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Section: Introductionmentioning

confidence: 99%

Biosourced Disposable Trays Made of Brewer’s Spent Grain and Potato Starch

et al. 2019

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“…Several strategies, especially the formation of composites using additives, reinforcing fibers, fillers, or blending between materials, have been investigated to improve biodegradable foams' properties [118,120]. De Carvalho et al [121] produced cassava-starch-based biodegradable foam trays coated with polyvinyl alcohol (PVOH) with a higher degree of hydrolysis. A decrease of approximately 50% in the water absorption capacity of the coated trays compared to the uncoated trays was observed.…”

Section: Biodegradable Foamsmentioning

confidence: 99%

Advances in the Food Packaging Production from Agri-Food Waste and By-Products: Market Trends for a Sustainable Development

et al. 2023

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Agricultural waste has been a prominent environmental concern due to its significant negative impact on the environment when it is incinerated, disposed of in landfills, or burned. These scenarios promoted innovations in the food packaging sector using renewable resources, namely agri-food waste and by-products such as bagasse, pulps, roots, shells, straws, and wastewater for the extraction and isolation of biopolymers that are later transformed into packaging materials such as bioplastics, biofilms, paper, and cardboards, among others. In this context, the circular bioeconomy (CBE) model is shown in the literature as a viable alternative for designing more sustainable production chains. Moreover, the biorefinery concept has been one of the main links between the agri-food chain and the food packaging industry. This review article aimed to compile recent advances in the food packaging field, presenting main industrial and scientific innovations, economic data, and the challenges the food packaging sector has faced in favor of sustainable development.

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“…Starch trays are able to substitute for instance expanded polystyrene (EPS) trays in some cases where they are to be quickly discarded after use. This could solve several waste management problems since EPS is not biodegradable, and also not very dense -which makes it difficult to be recycled -besides the fact that its raw material is non-renewable (Carvalho et al, 2018;Marcelino et al, 2016;Debiagi et al, 2015;Mello & Mali, 2014;Silva et al, 2013;Vercelheze et al, 2013;Matsuda et al, 2013;Marengo et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Biodegradability assessment of starch/glycerol foam and poly(butylene adipate-co-terephthalate)/starch film by respirometric tests

Taiatele

Bosco

Bertozzi

et al. 2020

Braz. J. Food Technol.

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The objectives of this work were to determine the biodegradability of starch/glycerol foam and of poly(butylene-adipate-co-terephthalate) (PBAT)/starch film using respirometric methods and also to compare these results with conventional polymers – expanded polystyrene and low-density polyethylene. A matured organic compost was utilized as inoculum and sucrose was used as positive reference material. Biodegradation efficiencies (BE) after 47 days were: 35% for sucrose; 34% for starch/glycerol; and 38% for PBAT/starch. Starch/glycerol and PBAT/starch presented BE statistically equal to sucrose, whilst both the conventional packaging used were not degraded (p> 0.05). Infrared spectroscopy and thermogravimetric analyses showed that the microbiota rather degraded the starch over the PBAT in the PBAT/starch blend, and also that some starch remained intact in the internal polymeric matrix. This study verified that starch/glycerol foam and PBAT/starch film are highly biodegradable materials and may then be used to enhance the biodegradability of some products such as disposable trays and supermarket bags.

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Baked Foams Based on Cassava Starch Coated with Polyvinyl Alcohol with a Higher Degree of Hydrolysis

Cited by 14 publications

References 21 publications

Biosourced Disposable Trays Made of Brewer’s Spent Grain and Potato Starch

Biosourced Disposable Trays Made of Brewer’s Spent Grain and Potato Starch

Advances in the Food Packaging Production from Agri-Food Waste and By-Products: Market Trends for a Sustainable Development

Biodegradability assessment of starch/glycerol foam and poly(butylene adipate-co-terephthalate)/starch film by respirometric tests

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