Biodegradation study of plasticised corn flour/poly(butylene succinate-co-butylene adipate) blends

Fouzia Jbilou 1 Catherine Joly 2 Sophie Galland 3 Laurent Belard 4 Valérie Desjardin 5 R. Bayard 6 Patrice Dole 4 Pascal Degraeve 7
1 LRGIA - Laboratoire de Recherche en Génie Industriel alimentaire
2 PAM - Procédés Alimentaires et Microbiologiques [Dijon]
3 Inrap - Institut national de recherches archéologiques préventives
4 FARE - Fractionnement des AgroRessources et Environnement - UMR-A 614
5 LGCIE - Laboratoire de Génie Civil et d'Ingénierie Environnementale
6 DEEP - Déchets Eaux Environnement Pollutions
7 BIODYMIA - Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires
Abstract : Plasticised corn flour/poly(butylene succinate-co-butylene adipate) (PBSA) materials were prepared by extrusion and injection in order to study the impact of PBSA ratio on their physicochemical properties and biodegradability. Scanning electron microscopy observations showed that corn flour and PBSA are incompatible. Three types of morphology have been observed: (i) starch dispersed in a PBSA matrix, (ii) a “co-continuous-like” morphology of starch and PBSA, and (iii) PBSA dispersed in a starch matrix. As expected, the extent of plasticised corn flour starch hydrolysis by amylolytic enzymes decreased when the amount of PBSA increased. Addition of a lipase to hydrolyse PBSA ester bonds enhanced enzymatic hydrolysis of starch by amylolytic enzymes in materials where PBSA formed a continuous phase. This suggests that PBSA formed a barrier restricting the access of amylolytic enzymes to starch. This was consistent with aerobic and anaerobic biodegradation assays, which also showed lower biodegradability of materials containing a majority of PBSA.
Keywords : Thermoplastic corn flour poly(butylene succinate-co-butylene adipate) Blend Morphology Biodegradation
Document type :
Journal articles
Complete list of metadatas
https://hal.archives-ouvertes.fr/hal-01966235
Contributor : Rémy Bayard <>
Submitted on : Thursday, December 27, 2018 - 7:12:16 PM
Last modification on : Tuesday, July 23, 2019 - 10:14:07 AM

Identifiers

Collections

INRA | INRAP | UNIV-BOURGOGNE | UNIV-LYON1 | PAM | INSA-LYON | FARE | URCA | SFRCONDORCET | DEEP | INSA-GROUPE | BIODYMIA

Citation

Fouzia Jbilou, Catherine Joly, Sophie Galland, Laurent Belard, Valérie Desjardin, et al.. Biodegradation study of plasticised corn flour/poly(butylene succinate-co-butylene adipate) blends. Polymer Testing, Elsevier, 2013, 32 (8), pp.1565-1575. ⟨10.1016/j.polymertesting.2013.10.006⟩. ⟨hal-01966235⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

83

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD