Effect of extrusion process variable on physicochemical properties of extruded rice snack with mealworm
2017
Cho, S.Y., Kongju National University, Gongju, Republic of Korea | Jeong, D.H., Kongju National University, Gongju, Republic of Korea | Ryu, G.H., Kongju National University, Gongju, Republic of Korea
This study aims to investigate the physicochemical properties of the extruded rice snack with added the containing mealworm. Adding the mealworm addition enhanced protein and unsaturated fatty acid contents, which are insufficient in rice. As the extrusion process variables, the death temperatures and moisture content were set to at respective 130 and 140℃, and 20 and 25%, respectively. The expansion ratio increased as with death temperature, whereas the increased moisture content decreased. The nitrogen solubility index and protein digestibility index increased with the added mealworm content of mealworm increased. As mealworm content and death temperature, and moisture content increased, DPPH radical scavenging activity significantly increased but the rancidity decreased. As the result of this study, confirmed that the addition of mealworm to the extruded rice snack was the confirmed as the effective process to improve nutrition, and antioxidation. Also, death temperature and moisture content have an effect on softened the texture of extruded rice snack.
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