Study on the Preparation of Dietary Fiber with Pineapple Bran

The dietary fiber was prepared with acid hydrolysis from the pineapple bran.The result of orthogonal experiment indicated that the suitable condition for extraction of soluble fiber was 80℃, pH2.0,taking-time 90min,the proportion between pineapple bran and water 1∶10 And that was 60℃,pH2.0,taking-time 60min for insoluble fiber. The production rates of soluble and insoluble were 1.10% and 5.06%(on the wet basis)respectively.The produce smells well and the color was light.Its expansive capacity were 7.00mL/g and water holding capacity were 757%.