FOOD SCIENCE

• Basic Research • Previous Articles     Next Articles

Modification of Insoluble Dietary Fiber in Okara by High Pressure Homogenization and High Hydrostatic Pressure and Functional Properties of the Modified Product

HUANG Suya1, HE Yawen1, QIAN Bingjun1, ZOU Yanping2, LIU Zhuang2   

  1. 1. School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China;
    2. Wilmar (Shanghai) Biotechnology Research and Development Center Co. Ltd., Shanghai 200240, China
  • Online:2015-08-15 Published:2015-08-17

Abstract:

In this study, insoluble dietary fiber (IDF) from fresh okara was modified by high-pressure homogenization (HPH)
and high hydrostatic pressure (HHP) to improve its solubility. The physiochemical and physiological properties of the modified
product were analyzed. The results showed that the yield of modified soluble dietary fiber (mSDF) from HPH modification
under the optimal pressure (110 MPa) was approximately 32.86%, and the yield of mSDF from HHP modification under
400 MPa was 7.56%, suggesting that HPH was significantly better than HHP for improving the solubility of IDF (P < 0.05).
Both treatments could improve the physiochemical properties of SDF, and promote the absorption capacities for bile acids
and cholesterol, but decrease the antioxidant effect.

Key words: modification, high-pressure homogenization, high hydrostatic pressure, physiochemical properties;physiological properties, dietary fiber

CLC Number: