abstract

• Ultrasound pre-treatment and protein extraction of Desmodesmus sp. and Tetradesmus obliquus biomass induced residual microalgae/polycaprolactone (PCL) biocomposites with higher viscoelastic and mechanical properties as injection mould temperature increased. This was probably associated to the promotion of microalgae proteins-PCL interactions. The PCL content required, to strengthen the biocomposites, depended on the microalgae system (20 or 10 wt%25 for residual Desmodesmus sp. (RD) or Tetradesmus obliquus (RT), respectively). Protein degradation was observed in RT-based systems at mould temperatures higher than 100 °C. On the contrary, a greater mould temperature induced thermal crosslinking and certain cell disruption in RD-based systems. These environmentally-friendly biocomposites are an interesting alternative for replacing petroleum plastics. © 2021

authors

• González-Balderas R.M.

publication date

• 2021-01-01

funding provided via

• Universidad de Sevilla: II.5; Consejo Nacional de Ciencia y Tecnología, CONACYT: 385966/253075; Ministerio de Ciencia e Innovación, MICINN; European Regional Development Fund, ERDF; Agencia Estatal de Investigación, AEI: RTI2018-097 100-B-C21  Grant

published in

• European Polymer Journal  Journal

keywords

• Biocomposites; Biowaste; Injection moulding; Microalgae Composite materials; Injection molding; Microorganisms; Molds; Proteins; Biocomposite; Biowastes; Cell disruption; Injection mould; Mold temperatures; Protein degradation; Protein extraction; Temperature-induced; Thermal crosslinking; Ultrasound pre treatments; Algae

Digital Object Identifier (DOI)

• 10.1016/j.eurpolymj.2021.110766

PubMed ID

start page

end page

volume

• 160

issue