Publication
Influence of galactomannan on the structure and thermal behaviour of xanthan/galactomannan mixtures
| authorProfile.affiliation | repositorio@ucp.pt | |
| dc.contributor.author | Fernandes, Paulo B. | |
| dc.date.accessioned | 2011-10-11T12:04:30Z | |
| dc.date.available | 2011-10-11T12:04:30Z | |
| dc.date.issued | 1995 | |
| dc.description.abstract | 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. | por |
| dc.identifier.citation | FERNADES, Paulo B. - Influence of galactomannan on the structure and thermal behaviour of xanthan/galactomannan mixtures. Journal of Food Engineering. ISSN 0260-8774. Vol. 24 2(1995), p. 269-283 | por |
| dc.identifier.doi | 10.1016/0260-8774(94)P2647-N | |
| dc.identifier.eid | 0029196663 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/5957 | |
| dc.identifier.wos | A1995PV22700008 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Elsevier | por |
| dc.title | Influence of galactomannan on the structure and thermal behaviour of xanthan/galactomannan mixtures | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | restrictedAccess | por |
| rcaap.type | article | por |