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Development and optimization of biodegradable fish gelatin composite film added with buriti oil

2018; Taylor & Francis; Volume: 16; Issue: 1 Linguagem: Inglês

10.1080/19476337.2017.1406005

1947-6345

Natácia da Silva e Silva, Enrique Pino−Hernández, Cleidiane da Silva Araújo, Maria Regina Sarkis Peixoto Joele, Lúcia de Fátima Henriques Lourenço,

biodegradable polymer synthesis and properties

The goal of the present study was to determine, through full 23 factorial design, the optimum process conditions to develop a biodegradable film, made from gelatin with buriti oil (BO) as additive, characterizing their physical, mechanical, and antioxidant aspects. The conditions for the optimization were 2.3% of fish gelatin, 30% of BO, and 13.18% of plasticizer. The films produced under this condition presented high antioxidant activity (24.77 µmol de TE/g), mechanical resistance (8.04 MPa), and satisfactory water vapor permeability (WVP; 0.38 × 10−10 g.m. m−2. s−1. Pa−1). The film presented low solubility in water, low humidity, and low water activity, contributing to its integrity, without identifiable flaws. The increase in the concentration of BO provided higher antioxidant properties to the films and the reduction in gelatin and glycerol concentrations provided lower WVP, increasing the traction resistance.