INFLUENCE OF GALACTOMANNAN ON THE STRUCTURE AND THERMAL-BEHAVIOR OF XANTHAN GALACTOMANNAN MIXTURES

被引：29

作者：

FERNANDES, PB ^{[1
]}

机构：

[1] UNIV CATOL PORTUGUESA, ESCOLA SUPER BIOTECNOL, P-4200 Porto, PORTUGAL

来源：

JOURNAL OF FOOD ENGINEERING | 1995年 / 24卷 / 02期

关键词：

D O I：

10.1016/0260-8774(94)P2647-N

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Mixed gels of xanthan gum and galactomannans (guar, whole and fractionated locust bean gum - LBG) were compared by means of oscillatory shear measurements. Whatever the LBG fraction, a synergistic maximum was observed when the ratio of xanthan to galactomannan was 1 : 1. However, the magnitude of this maximum varied with the LBG fraction used. The thermal behaviour of 1 : 1 xanthan/LBF fractions was characterized by cooling-heating cycles. A slight thermal hysteresis was systematically described for the several xanthan/LBG fraction systems. It was observed that the mannose to galactose (M/G) ratio of LBG fractions determined the sol-gel transition (gelation and melting temperature) of the xanthan/galactomannan mixed systems. From the galactomannan fine structure and thermorheological profiles it is evident that the higher the M/G ratio of galactomannan samples, the higher is the synergistic interaction as is also the transition temperature of the xanthan/LBG systems.

引用

页码：269 / 283

页数：15

共 48 条

[1]

ANDERSON DMW, 1986, FOOD ADDIT CONTAM, V3, P231

[2] A SIMPLE AND RAPID PREPARATION OF ALDITOL ACETATES FOR MONOSACCHARIDE ANALYSIS [J].

BLAKENEY, AB ;

HARRIS, PJ ;

HENRY, RJ ;

STONE, BA .

CARBOHYDRATE RESEARCH, 1983, 113 (02) :291-299

[3] Comparative studies of the mechanical properties of mixed gels formed by kappa carrageenan and tara gum or carob gum [J].

Cairns, P. ;

Morris, V. J. ;

Miles, M. J. ;

Brownsey, G. J. .

FOOD HYDROCOLLOIDS, 1986, 1 (01) :89-93

[4] X-RAY FIBER-DIFFRACTION STUDIES OF SYNERGISTIC, BINARY POLYSACCHARIDE GELS [J].

CAIRNS, P ;

MILES, MJ ;

MORRIS, VJ ;

BROWNSEY, GJ .

CARBOHYDRATE RESEARCH, 1987, 160 :411-423

[5] CONFORMATIONAL ASPECTS OF XANTHAN-GALACTOMANNAN GELATION [J].

CHEETHAM, NWH ;

MASHIMBA, ENM .

CARBOHYDRATE POLYMERS, 1988, 9 (03) :195-212

[6]

CLARK AH, 1987, ADV POLYM SCI, V83, P57

[7] CONCENTRATION REGIMES IN XANTHAN GUM SOLUTIONS DEDUCED FROM FLOW AND VISCOELASTIC PROPERTIES [J].

CUVELIER, G ;

LAUNAY, B .

CARBOHYDRATE POLYMERS, 1986, 6 (05) :321-333

[8] XANTHAN CAROB INTERACTIONS AT VERY LOW CONCENTRATION [J].

CUVELIER, G ;

LAUNAY, B .

CARBOHYDRATE POLYMERS, 1988, 8 (04) :271-284

[9] FREQUENCY-DEPENDENCE OF VISCOELASTIC PROPERTIES OF SOME PHYSICAL GELS NEAR THE GEL POINT [J].

CUVELIER, G ;

LAUNAY, B .

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, 1990, 40 :23-31

[10]

Cuvelier G., 1985, GUMS STABILISERS FOO, V3, P147

← 1 2 3 4 5 →