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

被引：36

作者：

Jbilou, Fouzia ^{[1
]}

Joly, Catherine ^{[1
]}

Galland, Sophie ^{[1
]}

Belard, Laurent ^{[2
]}

Desjardin, Valerie ^{[3
]}

Bayard, Remy ^{[3
]}

Dole, Patrice ^{[4
]}

Degraeve, Pascal ^{[1
]}

机构：

[1] Univ Lyon 1, ISARA Lyon, IUT Lyon 1, Lab Bioingn & Dynam Microbienne Interfaces Alimen, F-01000 Bourg En Bresse, France

[2] Pole Europeen de Plasturgie, F-01100 Bellignat, France

[3] Univ Lyon, Lab LGCIE, INSA Lyon, F-69621 Villeurbanne, France

[4] Univ Reims, INRA, UMR 614, F-51687 Reims 2, France

来源：

POLYMER TESTING | 2013年 / 32卷 / 08期

关键词：

Thermoplastic corn flour; poly(butylene succinate-co-butylene adipate); Blend; Morphology; Biodegradation; POLY(BUTYLENE SUCCINATE); THERMOPLASTIC STARCH; POLYESTERS; ACID;

D O I：

10.1016/j.polymertesting.2013.10.006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1565 / 1575

页数：11

共 18 条

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