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Effect of Ultra-high Pressure on Gelation Property of Food Protein

HE Xuan-hui,LIU Hong-zhi,ZHAO Guan-li,LIU Li,WANG Qiang*   

  1. Key Laboratory of Agricultural Product Processing and Quality Control, Ministry of Agriculture,
    Institute of Agro-food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Online:2013-07-15 Published:2013-06-28
  • Contact: WANG Qiang

Abstract:

Gelatin is one of the major characteristics of protein. In this paper, formation mechanism of protein gel is
introduced. Meanwhile, the effects of major factors as pressure, time, and protein type and protein concentration on protein
gelatin in foods under ultra-high pressure conditions are explored. In addition, an in-depth description has been made on
protein gel formation and its molecular conformation after ultra-pressure treatment, such as the changes of disulfide bonds
and hydrophobic interactions in tertiary structure and changes of α-helix, β-folding and non-random crispation content in the
secondary structure. Moreover, the directions for the future development are proposed.

Key words: ultra-high pressure, food protein, gelation

CLC Number: