Specific enzymatic tailoring of wheat arabinoxylan reveals the role of substitution on xylan film properties

被引:34
作者
Heikkinen, Susanna L. [1 ]
Mikkonen, Kirsi S. [1 ]
Pirkkalainen, Kari [2 ]
Serirnaa, Ritva [2 ]
Joly, Catherine [3 ]
Tenkanen, Maija [1 ]
机构
[1] Univ Helsinki, Dept Food & Environm Sci, FIN-00014 Helsinki, Finland
[2] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland
[3] Univ Lyon 1, IUT DGB, LRGIA EA 3733, F-01000 Bourg En Bresse, France
基金
芬兰科学院;
关键词
Wheat arabinoxylan; Arabinofuranosidases; Branching; Film; Material properties; WATER-VAPOR PERMEABILITY; BETA-GLUCAN; FLOUR;
D O I
10.1016/j.carbpol.2012.09.085
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
To increase understanding of the applicability of agro biomass by-products as biodegradable film formers, the effect of wheat arabinoxylan (WAX) fine structure on film properties was studied by applying specific enzyme modifications. WAX was selectively modified to mimic the natural variations of different arabinoxylans, particularly the degree of mono and disubstitution of alpha-L-arabinofuranosyl (Araf) units in beta-D-xylopyranosyl (Xylp) backbone residues. The resulting modified WAX samples had similar arabinose-to-xylose (Ara/Xyl) ratios, but they differed in the number of unsubstituted Xylp units. The substitution of WAX was found to affect, in particular, tensile strength, crystallinity, and oxygen permeability properties of the films, as statistically significant decreases in tensile strength and oxygen permeability took place after WAX de-branching. An increase in the number of unsubstituted Xylp units decreased the temperature of relaxation of small-scale molecular motions of WAX (beta-relaxation) and increased the degree of crystallinity of the films. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:733 / 740
页数:8
相关论文
共 36 条
[1]   SOLUTION PROPERTIES OF WHEAT-FLOUR ARABINOXYLANS AND ENZYMICALLY MODIFIED ARABINOXYLANS [J].
ANDREWARTHA, KA ;
PHILLIPS, DR ;
STONE, BA .
CARBOHYDRATE RESEARCH, 1979, 77 (DEC) :191-204
[2]   Evaluation of alkaline pretreatment temperature on a multi-product basis for the co-production of glucose and hemicellulose based films from lignocellulosic biomass [J].
Bahcegul, Erinc ;
Toraman, Hilal Ezgi ;
Ozkan, Necati ;
Bakir, Ufuk .
BIORESOURCE TECHNOLOGY, 2012, 103 (01) :440-445
[3]  
Burnett D, 2009, PHARM TECHNOLOGY EUR, V21, P41
[4]   A study of the molecular relaxations in solid starch using dielectric spectroscopy [J].
Butler, MF ;
Cameron, RE .
POLYMER, 2000, 41 (06) :2249-2263
[5]   Experimental evidence for a semi-flexible conformation for arabinoxylans [J].
Dervilly-Pinel, G ;
Thibault, JF ;
Saulnier, L .
CARBOHYDRATE RESEARCH, 2001, 330 (03) :365-372
[6]   Structural diversity and application potential of hemicelluloses [J].
Ebringerová, A .
MACROMOLECULAR SYMPOSIA, 2006, 232 :1-12
[7]  
Ebringerová A, 2000, MACROMOL RAPID COMM, V21, P542
[8]   MEASUREMENT ERRORS IN WATER-VAPOR PERMEABILITY OF HIGHLY PERMEABLE, HYDROPHILIC EDIBLE FILMS [J].
GENNADIOS, A ;
WELLER, CL ;
GOODING, CH .
JOURNAL OF FOOD ENGINEERING, 1994, 21 (04) :395-409
[9]   WATER-UNEXTRACTABLE CELL-WALL MATERIAL FROM WHEAT-FLOUR .3. A STRUCTURAL MODEL FOR ARABINOXYLANS [J].
GRUPPEN, H ;
KORMELINK, FJM ;
VORAGEN, AGJ .
JOURNAL OF CEREAL SCIENCE, 1993, 18 (02) :111-128
[10]  
Guinier A., 1994, XRAY DIFFRACTION CRY