FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (12): 5-9.doi: 10.7506/spkx1002-6630-201112002

• Processing Technology • Previous Articles     Next Articles

Optimization of Quick Freezing Technology of Lentinus edodes Using High Pressure Carbon Dioxide

TAN Xi-yao1,HU Xiao-song1,LI Shu-yan1,PANG Xue-li1,XIAO Li-xia2,WU Ji-hong1,*   

  1. 1. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; 2. College of Food Science and Engineering, Yangzhou University, Yangzhou 225001, China
  • Online:2011-06-25 Published:2011-06-10

Abstract: High pressure carbon dioxide (HPCD) was applied to quick-freeze shiitake (Lentinus edodes) in order to reduce energy consumption and cost. After being blanched in boiling water, the mushroom was subjected to HPCD treatment. By using one-factor-at-a-time and orthogonal array design methods, operating parameters such as initial temperature and pressure of the reaction vessel and pressure-relieving time were optimized for maximum sensory evaluation of quick-frozen products. Results showed that the optimum HPCD conditions were as follows: 6 ℃ initial temperature, 7 MPa initial pressure and 4 min pressure-relieving time. In addition, pressure-relieving time had the most significant influence on the sensory quality of quick-frozen shiitake among the parameters.

Key words: Lentinus edodes, quick freezing, high pressure carbon dioxide, sensory quality

CLC Number: