RT Journal Article
T1 Development of protein-based bioplastics with antimicrobial activity by thermo-mechanical processing
A1 Martinez García, Inmaculada
A1 Partal López, Pedro
A1 García Morales, Moisés
A1 Guerrero Conejo, Antonio F.
A1 Gallegos Montes, Críspulo
AB This study focuses on the development of new bio-active protein-based bioplastics through a thermomechanical processing, which involves a first compounding step followed by compression-moulding of the resulting material into the desired shape. Two types of proteins, wheat gluten and egg-white albumen, and two different bioactive agents, formic acid and oregano essential oil, were selected. The effectof biocide addition on the material rheological response, its antimicrobial activity and biocide release behaviour have been assessed. Rheological tests demonstrated that formulation and processing may exert a notable effect on the material linear viscoelasticity. Kirby–Bauer tests carried out on four selectedtypes of microorganisms revealed that oregano essential oil into a wheat gluten-based matrix may be suitable for applications where the active agent must be progressively delivered (for up to 7 days). Moreover, this biocide can inhibit microorganisms’ growth even if the bioplastic is not in direct contact with the substrate.
PB Elsevier
SN 0260-8774
SN 1873-5770 (electrónico)
YR 2013
FD 2013-02
LK https://hdl.handle.net/10272/25185
UL https://hdl.handle.net/10272/25185
LA eng
NO This work is part of a research project sponsored by OX-CTA and by “Ministerio de Economía y Competitividad” (Ref. MAT2011-29275-C02-01). The authors gratefully acknowledge their financial support.
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026