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5th International Conference on Global Food Safety

Alfee Bustamante-Capsule

Alfee Bustamante-Capsule

Food and Nutrition Research Institute, Philippines

Title: Characterization of modified starches from adlay (Coix lacryma Jobi-L.)

Biography

Biography: Alfee Bustamante-Capsule

Abstract

Adlay (Coix lacryma jobi L.) is an underutilized cereal crop that shows potential as a source of starch. In the form of starch, its utilization can be enhanced by modification. However, there are limited studies on the modification of adlay starch and its properties. The study aimed to characterize adlay starches modified by heat-moisture treatment in terms of nutrient composition, physical and functional properties. Nutrient composition, physical and functional properties were analyzed using standard methods
and compared with modified cornstarch and modified tapioca starch. Modification caused a decrease in moisture and increase in protein, ash and resistant starch content. Modified starch produced is white with lightness (L) values ranging from 95.70-93.98. Scanning electron microscopy (SEM) studies showed that the shape and surface characteristics of the starches were oval to polygonal with various cracks, fissures and indentations on the surface. Water absorption capacity increased while swelling and solubility decreased. Significant changes in pasting and gelatinization properties were also observed. Pasting curves were similar to the control. In conclusion, modified starches that were produced from adlay through heat-moisture treatment showed properties that may have potential application in canned food products, sauces, noodles and bread.