m. khameh

Hydrocolloids, playing different roles including thickening, stabilizing, gelling and improving texture of foods, are among additives widely used for improvement of quality in food industry. Recently, demand for hydrocolloids with special functional properties has grown, so finding new sources of gums with proper attributes is of enormous importance. In this work, the effects of microwave and ultrasound power, time and temperature on the yield and quality of extracted mucilage from trehala manna were studied. The highest total amount of mucilage yield for microwave was found to be 54.99 % for 10.5 min of extraction at 90 W and 45◦C. It was observed that yield increased with an increase in microwave power and temperature. The highest yield (54%) for sonication was 150 W, time of 20 min in 60◦C.As a result, microwave extraction was selected as the optimal extraction method of trehala manna mucilage. The quality and quantity of sugary compound analyzed by high-performance anion exchange chromatography with pulsed amperometric detection.