Functional properties of Syrian dried kishk effected by gamma irradiation treatments

This study investigated the physical and functional properties of Syrian dried kishk (SDK) treated with 0, 5, 10 and 15 kGy doses of gamma irradiation. Physical and functional analyses of SDK were evaluated immediately after irradiation. Used doses of gamma irradiation significantly increased Tap density (TD), carr index (CI), Hauser’s ratio (HR), angle of repose, oil holding capacity (OHC), and solubility. While, the same doses of gamma irradiation (5, 10, and 15 kGy) reduced bulk density (BD), hydrophilic-lipophilic ratios (HLR), and least gelations concentration (LGC). Laboratory examination revealed that there were no significant changes between irradiated and non-irradiated groups in water holding capacity (WHC), swelling index (SI), swelling capacity (SC), foaming capacity (FC), foaming stability (FS), emulsion activity (EA) and emulsion stability (ES). Gamma irradiation showed slight, but significant effect on the physical and functional characteristics of SDK analysis, but the values of the analyzed parameters were still within the permissible limits approved by the national and international standards.