FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (9): 118-121.doi: 10.7506/spkx1002-6630-201209025

• Basic Research • Previous Articles     Next Articles

Effect of Protein Concentration on Properties of Heat-Induced Gels Prepared from Egg White, Yolk or Whole Egg

ZHOU Chang-xu,JIN Hong-guo,XIN Ying-ying,PENG Zeng-qi*,XIONG Xiong, WANG Rong-rong,ZHANG Ya-wei   

  1. (Key Laboratory of Meat Products Processing and Quality Control, Ministry of Education, Nanjing Agricultural University, Nanjing 210095, China)
  • Online:2012-05-15 Published:2012-05-07

Abstract: In this study, the heat-induced gel-forming capacity of egg white, egg yolk and whole egg was determined and the effect of protein concentration on properties formed gels was explored. The results indicated that the minimum protein concentrations for the formation of heat-induced gels from egg white, egg yolk and whole egg were 50, 55 mg/mL and 50 mg/mL, respectively. In the concentration range of 50-135 mg/mL, the strength and water-holding capacity of heat-induced gels from egg white, egg yolk and whole egg revealed an obvious increase, while the cooking loss revealed an overall drop along with the increase of protein concentration. In addition, protein concentration also had a significant impact on the springness of heat-induced gels from egg white, egg yolk and whole egg.

Key words: egg white, egg yolk, whole egg, protein concentration, gel properties

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