| Full text | |
| Author(s): |
Vieira, J. M.
[1]
;
Mantovani, R. A.
[1]
;
Raposo, M. F. J.
[2]
;
Coimbra, M. A.
[2]
;
Vicente, A. A.
[3]
;
Cunha, R. L.
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Campinas, Fac Food Engn, Dept Food Engn, UNICAMP, BR-13083862 Campinas, SP - Brazil
[2] Univ Aveiro, Dept Chem, P-3810193 Aveiro - Portugal
[3] Univ Minho, CEB Ctr Biol Engn, Campus Gualtar, P-4710057 Braga - Portugal
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Carbohydrate Polymers; v. 213, p. 217-227, JUN 1 2019. |
| Web of Science Citations: | 1 |
| Abstract | |
Soluble flaxseed gum (SFG) extracted at different temperatures (25, 40, and 60 degrees C) was analyzed in relation to the yield, polysaccharides and phenolics composition, surface charge, color, and rheological properties. The yield of SFG extract increased as the extraction temperature increased. The SFG xylan was the main component regardless the extraction temperature, but a reduction of substituents on the xylose chain was observed when increasing the extraction temperature. The phenolic compounds were also affected by the extraction temperature, influencing the antioxidant capacity of the gum. For all the extraction temperatures, SFG aqueous solutions showed a shear time-independent and shear-thinning behavior. Furthermore, oscillatory measurements showed a prevailing viscous character, but the decrease of the extraction temperature resulted in an increase of both G' and G{''}. Therefore, SFG extracted at low extraction temperatures showed higher viscous and elastic properties, while high extraction temperatures increased the antioxidant activity. (AU) | |
| FAPESP's process: | 09/54137-1 - Acquisition of a particle size/distribution analyzer, a zeta potential measurement system, a spray dryer, and an ultra-high-pressure liquid chromatograph/mass spectrometer |
| Grantee: | Miriam Dupas Hubinger |
| Support Opportunities: | Multi-user Equipment Program |
| FAPESP's process: | 16/05448-8 - Relationship rheology-functionality in thickeners formulations to dysphagia pacients |
| Grantee: | Rosiane Lopes da Cunha |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 06/03263-9 - Process, packaging, edible coatings application and final quality evaluation of some high moisture tropical fruits |
| Grantee: | Miriam Dupas Hubinger |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 11/51707-1 - Understanding the emulsion behaviour of fermentation mixtures in the microbial production of diesel and jet-like biofuels |
| Grantee: | Rosiane Lopes da Cunha |
| Support Opportunities: | Program for Research on Bioenergy (BIOEN) - Regular Program Grants |