Pectinase treatments on technical fibres of flax: Effects on water sorption and mechanical properties

被引：78
作者：
Alix, S. [1 ]
Lebrun, L. [1 ]
Marais, S. [1 ]
Philippe, E. [2 ]
Bourmaud, A. [3 ]
Baley, C. [3 ]
Morvan, C. [1 ]
机构：
[1] Univ Rouen, Lab PBS, UMR CNRS 6270, FR 3038, F-76821 Mont St Aignan, France
[2] Dehondt Technol, F-76330 Notre Dame De Gravenchon, France
[3] Univ Bretagne Sud, Lab Ingn Mat Bretagne, F-56321 Lorient, France
来源：
CARBOHYDRATE POLYMERS | 2012年 / 87卷 / 01期
关键词：
Flax; Cellulosic fibre; Nanoindentation; Pectate-lyase; Retting; Tensile properties; Water vapour sorption; CELL-WALLS; PHYSICAL-PROPERTIES; BACILLUS-SUBTILIS; PECTATE LYASE; BAST FIBER; COMPOSITES; POLYSACCHARIDES; CELLULOSE; BEHAVIOR; TENSILE;
D O I：
10.1016/j.carbpol.2011.07.035
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
This study is focused on enzymatically upgrading the functional properties of flax fibres. Green flax fibres were treated with a polygalacturonase and a pectate lyase (PaL) and their properties were compared with dew-retted fibres. Morphological observations, vapour-sorption analyses and mechanical measurements showed that PaL-treatment was able not only to mime retting in terms of bundle division, but also to improve the mechanical properties of technical fibres. Conversely, these properties were shifted clown after the polygalacturonase treatment, mainly due to the presence of contaminating glycanases. At the level of the elementary fibres, nanoindentation data indicated the highest stiffness of the secondary wall for PaL-treated fibres. The tensile properties exhibited equal, but moderate values of the Young's modulus (similar to 37 +/- 14 GPa) and breaking strength (similar to 650 +/- 300 MPa) for retted and PaL-treated fibres; we hypothesize an impact of the growth conditions on the fibre chemical structure with an excess of matrix pectins compared to the amount of glucomannan coating the cellulose microfibrils. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：177 / 185
页数：9
相关论文
共 50 条
[11]   Rigidity analysis of polypropylene/vegetal fibre composites after recycling [J].
Bourmaud, Alain ;
Baley, Christophe .
POLYMER DEGRADATION AND STABILITY, 2009, 94 (03) :297-305
[12]   PRODUCTION OF POLYSACCHARIDE-DEGRADING ENZYMES BY SAPROPHYTIC FUNGI FROM GLYPHOSATE-TREATED FLAX AND THEIR INVOLVEMENT IN RETTING [J].
BROWN, AE ;
SHARMA, HSS .
ANNALS OF APPLIED BIOLOGY, 1984, 105 (01) :65-74
[13]   Characteristics of Hermes flax fibres as a function of their location in the stem and properties of the derived unidirectional composites [J].
Charlet, K. ;
Baley, C. ;
Morvan, C. ;
Jernot, J. P. ;
Gomina, M. ;
Breard, J. .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2007, 38 (08) :1912-1921
[14]  
Charlet K., 2008, THESIS U CAEN, P182
[15]   The effect of soil drought on the phloem fiber development in long-fiber flax [J].
Chemikosova, S. B. ;
Pavlencheva, N. V. ;
Gur'yanov, O. P. ;
Gorshkova, T. A. .
RUSSIAN JOURNAL OF PLANT PHYSIOLOGY, 2006, 53 (05) :656-662
[16]   A COLORIMETRIC METHOD FOR THE DETERMINATION OF SUGARS [J].
DUBOIS, M ;
GILLES, K ;
HAMILTON, JK ;
REBERS, PA ;
SMITH, F .
NATURE, 1951, 168 (4265) :167-167
[17]   The significance of the elastic modulus of wood cell walls obtained from nanoindentation measurements [J].
Gindl, W ;
Schöberl, T .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2004, 35 (11) :1345-1349
[18]   Galactans and cellulose in flax fibres: Putative contributions to the tensile strength [J].
Girault, R ;
Bert, F ;
Rihouey, C ;
Jauneau, A ;
Morvan, C ;
Jarvis, M .
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 1997, 21 (1-2) :179-188
[19]   Identification and partial characterization of proteins and proteoglycans encrusting the secondary cell walls of flax fibres [J].
Girault, R ;
His, I ;
Andeme-Onzighi, C ;
Driouich, A ;
Morvan, C .
PLANTA, 2000, 211 (02) :256-264
[20]   Secondary cell-wall assembly in flax phloem fibres: role of galactans [J].
Gorshkova, T ;
Morvan, C .
PLANTA, 2006, 223 (02) :149-158
12345