Casting and extrusion processes to produce bio-based plastics using cassava starch modified by the dry heat treatment (DHT)

Autor(es)

La Fuente, Carla I. A. ^[1] ; Siqueira, Larissa do Val ^{[2, 3]} ; Duarte Augusto, Pedro Esteves ^{[2, 1, 4]} ; Tadini, Carmen C. ^{[2, 5, 3]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sch Agr Luiz de Queiroz ESALQ, Dept Agrifood Ind Food & Nutr LAN, BR-13418900 Piracicaba, SP - Brazil

^[2] Univ Sao Paulo, Food & Nutr Res Ctr NAPAN, Sao Paulo, SP - Brazil

^[3] Univ Sao Paulo, Escola Politecn, Dept Chem Engn, Main Campus, BR-05508010 Sao Paulo, SP - Brazil

^[4] Univ Paris Saclay, Cent Supelec, Lab Genie Proc & Mat, SFR Condorcet FR CNRS 3417, Ctr Europeen Biotechno, 3 Rue Rouges Terres, F-51110 Pomacle - France

^[5] Univ Sao Paulo, Food Res Ctr FoRC NAPAN, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES; v. 75, JAN 2022.
• Citações Web of Science: 0

Resumo

Although the number of studies focused on bio-based plastics is constantly rising, an important challenge to overcome is migrating from casting to extrusion, an industrially scalable method of production. In this work, we studied starch modification by dry heating treatment (DHT) and the production of cassava starch films or sheets, by casting or extrusion processes, respectively. The molecular changes promoted by the DHT process resulted in a new matrix. Furthermore, the slower drying in casting, and the faster drying in extrusion, promoted different molecular arrangements, which affected the material performance. The main results showed that DHT for 4 h in cassava starch produced bio-based plastics with increased mechanical properties and opacity while decreasing water permeability, moisture content and light transmittance. In conclusion, DHT showed to be an interesting alternative to produce biodegradable plastics with potential use in different industries. (AU)

• Processo FAPESP: 16/12385-2 - Desenvolvimento de polímero linear de baixa densidade para aplicação como embalagem inteligente
• Beneficiário: Carmen Cecilia Tadini
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 17/05307-8 - Modificação de amido de mandioca por oxidação com ozônio para a elaboração de filmes biodegradáveis
• Beneficiário: Carla Ivonne La Fuente Arias
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 19/21700-7 - Modelagem matemática e validação experimental do processo de extrusão na produção de filme biodegradável de amido de mandioca
• Beneficiário: Larissa do Val Siqueira
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto