The Effect of Extrusion Conditions on Water-extractable Arabinoxylans from Corn Fiber

• Jeon, Su-Jung (Department of Food Science and Technology, Kongju National University)
• Singkhornart, Sasathorn (Department of Food Science and Technology, Kongju National University)
• Ryu, Gi-Hyung (Department of Food Science and Technology, Kongju National University)

published in 2014. 6. 30

Abstracts

The effect of feed moisture contents (30%, 40%, and 50%) and screw speed (200 rpm, 250 rpm, and 300 rpm) on the corn fiber gum (CFG) yield and soluble arabinoxylans (SAX) content of destarched corn fiber was investigated. The CFG yields and SAX contents of extruded, destarched corn fiber were higher than that of destarched corn fiber. In extruded, destarched corn fiber, increased screw speed and decreased feed moisture contents resulted in a higher SAX contents. The maximum yields of CFG obtained from extruded, destarched corn fiber were $79.1{\pm}19.0g/kg$ (30% feed moisture content) and $82.3{\pm}11.30g/kg$ (300 rpm screw speed). The highest SAX content was also observed at a screw speed of 300 rpm. The results of the present study show that water extraction and extrusion combined have the potential to increase CFG and SAX yields from corn fiber.

Keyword

• extrusion
• soluble arabinoxylans
• corn fiber gum
• water extraction

Published Information

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Published Information of the Articles

Country	kor
Publisher	The Korean Society of Food Science and Nutrition
KJTK Publish Information	Volume 8. 2014. 12. 31
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