Functional properties of hydrocolloid extracted from selected domestic Iranian seeds

The seeds of Shahi، Qodumeh Shahri، Qodumeh Shirazi and Marve were selected as the new sources of hydrocolloids and the extraction yield and some functional properties such as time independent rheological properties، emulsion capacity (EC)، emulsion stability (ES)، gelling properties، foaming capacity (FC) and foaming stability (FS) were determined. The results showed that the yield of hydrocolloid extraction from selected seeds was in the range of 8% to 15% (w/w) and Qodumeh Shirazi and Shahi seeds had the highest and the lowest yield، respectively. All samples exhibited shear thinning behavior (n< 0. 43). Marve seed extract showed the highest apparent viscosity followed by Qodumeh Shirazi، Shahi and Qodumeh Shirazi. EC and ES values of Marve seed extract were obtained more than other extracts at 1% concentration، whereas Marve seed extract and Shahi seed extract at 0. 5% concentration had the highest EC and ES، respectively. Qodumeh Shahri seed extract and Qodumeh Shirazi seed extract showed the greatest FC and FS، respectively.