COMPARISON BETWEEN CRUDE FIBER AND DIETARY FIBER CONTENTS IN FOODS / 营养学报

ABSTRACT

Contents of crude fiber and neutral detergent fiber in 34 common foods have been determined and compared. In all foods, crude fiber content is lower than neutral detergent fiber. The percentage of crude fiber to neutral detergent fiber ranges from 13.04% to 65.63%. It is higher in vegetables, medium in legumes and fruits, and lower in cereals. In some categories of food, there is a good correlation between crude fiber content and neutral detergent fiber content. For fresh vegetables and fruits, the regression equation is Y = 0.4230+ 1.2425x and Y = 0.0456 + 4.6161x for cereals. It is proposed that the neutral detergent fiber content may be estimated at crude fiber content.