NEUTRAL SUGAR CONTENTS OF CORN GLUTEN MEAL AND CORN GLUTEN FEED

摘要

Corn gluten meal and corn gluten feed are coproducts from wet milling of corn. To increase their potential for further processing, the carbohydrate composition of these coproducts was determined. Each material was first hydrolyzed by trifluoroacetic acid, and the noncellulosic neutral sugars were then measured by high-performance liquid chromatography. Glycerol (3.7 and 4.9%), arabinose (0 and 6.1%), xylose (0.3 and 6.3%), mannose (1.0 and 0%), glucose (7.9 and 21.1%), and galactose (0.2 and 1.7%) were found in corn gluten meal and corn gluten feed, respectively. Glycerol and glucose account for most of the neutral carbohydrates from the hydrolysis of the 80% methanol soluble fraction (monosaccharide and low molecular weight oligosaccharides).