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Bilayer films produced with ozonated potato starch

Grant number: 20/10498-0
Support Opportunities:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): January 26, 2021
Effective date (End): January 24, 2022
Field of knowledge:Agronomical Sciences - Food Science and Technology - Food Engineering
Principal Investigator:Carmen Cecilia Tadini
Grantee:Carla Ivonne La Fuente Arias
Supervisor: Amparo Chiralt
Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: Universitat Politécnica de Valéncia (UPV), Spain  
Associated to the scholarship:17/05307-8 - Ozone-modified cassava starch to produce biodegradable films, BP.PD


We recently proposed the ozonation as an interesting alternative to modify starches with a focus on film production. The films produced with ozonated starches presented enhanced mechanical properties, with increased tensile strength and Young's modulus. However, water vapour and oxygen permeability were also increased. Bilayer films propose to combine the characteristics of different individual polymer sources in a single structure, aiming to improve the properties of the films i.e. barrier properties. The appropriate combination of the polymeric matrices may lead to the improvement of these properties and thus, the package applications.Many combinations of polymers had been studied for example starch and poly (lactic) acid (PLA), both biodegradable and renewable materials. Since both polymers show complementary mechanical and barrier properties, their combination could lead to films with improved properties. Profa. Amparo Chiralt and her group Research Institute of Food Engineering for Development from the Polytechnic University of Valencia has expertise in developing bilayer films through compressing moulding technique. The advantages of compression moulding are the ability to mould a large quantity of materials and its low cost. However, this technology is not explored in Brazil.Therefore, the present project proposes a Research Internships Abroad BEPE at the Research Institute of Food Engineering for Development from the Polytechnic University of Valencia with the aim to develop a bilayer film with ozonated potato starch and poly (lactic) acid trying to enhance the performance of ozonated potato starch films reported in the current study developed in Brazil. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
LA FUENTE ARIAS, CARLA IVONNE; KUBO, MIRIAN TIAKI KANEIWA; TADINI, CARMEN CECILIA; AUGUSTO, PEDRO ESTEVES DUARTE. Bio-based multilayer films: A review of the principal methods of production and challenges. CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION, . (17/05307-8, 20/10498-0)

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