The objective of this study is to determine the effects of barrel temperature and moisture content on the physicochemical properties of texturized vegetable protein (TVP). The water absorption index, water solubility index, texture, integrity index, color, and scanning electron micrograph of the TVP were analyzed. The extrusion conditions consisted of barrel temperature (110, 130, and 150oC) and moisture content (40, 45, and 50%) at a fixed screw speed of 250 rpm. The TVP extruded at 150oC barrel temperature and bearing 50% moisture content had higher water absorption index and water solubility index. Elastic force, cohesiveness, and color differences were the highest in the TVP extruded at 150oC barrel temperature and possessing 40% moisture content. However, the TVP at 150oC barrel temperature and having 40% moisture content had a lower integrity index than the TVP carrying moisture contents of 45 and 50%. The structure of the TVP extruded at 150oC barrel temperature and having 40% moisture content was found similar to a chicken breast tissue’s structure. In conclusion, 150oC barrel temperature and 40% moisture content are optimal conditional characteristics for the texturization of soy protein isolate and gluten.

Abstract
서 론
재료 및 방법
결과 및 고찰
요 약
References

• 문대균(공주대학교 식품공학과, 공주대학교 식품 및 사료 압출성형 연구센터) | Dae Gyun Moon (Department of Food Science and Technology, Kongju National University Food & Feed Extrusion Research Center, Kongju National University)
• 김미환(공주대학교 식품공학과, 공주대학교 식품 및 사료 압출성형 연구센터) | Mi-Hwan Kim (Department of Food Science and Technology, Kongju National University Food & Feed Extrusion Research Center, Kongju National University)
• 류기형(공주대학교 식품공학과, 공주대학교 식품 및 사료 압출성형 연구센터) | Gi-Hyung Ryu (Department of Food Science and Technology, Kongju National University Food & Feed Extrusion Research Center, Kongju National University) Corresponding author