Physicochemical and rheological properties of gum seed and pulp from Hymenaea courbaril L.

Abstract

The aim of this work was to isolate pulp (PH) and seed hydrocolloids (SH) of the fruit of Hymenaea corbaril L. and determinate chemical, functional and rheological properties, as a proposal of a new attractive product for functional applications in food systems. Both hydrocolloids have a high content of carbohydrates, minerals and fiber. The solubility of PH was higher 94.1%. The emulsifying capacity of SH, PH and GG increases with the hydrocolloid concentration. The emulsions showing a good stabilization stability with drop sizes of 5-20 μm. The emulsions PH and SH at 1% were higher stability than guar gum (GG), due to slower down the cremation index after 3 days of storage at 35 and 40°C. The hydrocolloids exhibited a pseudoplastic behavior at concentrations of 0.5-2%. The elastic behavior suggests its application to edible films, while the viscous behavior suggests its incorporation in food systems.

Rocket seed (Eruca sativa Mill) gum: physicochemical and comprehensive rheological characterization

“…G' and G" values of the samples at all concentrations increased with the increase of angular velocity. Similar behavior was reported for locust bean gum (Dakia et al, 2008) Hymenaea courbaril L. gum seed (Hernández-Morales et al, 2018). Figure 5 demonstrated that the RSG solutions at all concentrations G' were higher than Gʹʹ indicating that RSG showed solid viscoelastic character like gel behavior with all in frequency ranges.…”

Stability in Aqueous Solution of a New Spray-Dried Hydrocolloid of High Andean Algae Nostoc sphaericum

“…In both mod behavior index values (n) exceed 1.0 (Table 3), which suggests that the solution beha as a dilatant fluid. This behavior aligns with shear thickening dispersions [23,51,52 characteristic observed when subject to a wide range of cutting rates [53][54][55]. Notably, behavior intensified with significantly increasing temperature (Figure 4a), likely tributed to the thickening capacity of the hydrogels and gums [53,56,57], although no nificant differences of n with SDH concentration and pH of the solution have been denced (p-value < 0.05).…”