FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (7): 37-41.doi: 10.7506/spkx1002-6300-201007009

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Effect of Water Immersion Conditions on Textural Properties and Microstructure of Dried Sea Cucumber

XU Zhi-bin,CHEN Qing,LI Jian-rong*   

  1. College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, China
  • Received:2009-04-07 Revised:2009-12-09 Online:2010-04-01 Published:2010-12-29
  • Contact: LI Jian-rong* E-mail:lijianrong@zjgsu.edu.cn

Abstract:

Dried sea cucumber (Acaudina molpadioidea) must be soaked as the pretreatment for cooking. Its textural properties depend on water immersion conditions. In this study, the effect of immersion conditions on textural properties and microstructure of sea cucumber were investigated. The textural properties of water-immersed sea cucumber were determined by instrumental texture profile analysis (TPA) and Masson staining method. Textural parameters including hardness, elasticity, adhesiveness, resilience, cohesiveness and chewiness were measured. Results indicated that hardness, adhesiveness, elasticity, cohesiveness and resilience were significantly affected by heating temperature. Holding temperature had a pronounced effect on hardness, adhesiveness, chewiness, cohesiveness and resilience. Hardness and adhesiveness were affected by interaction between heating temperature and holding temperature. Moreover, structural changes were also observed under a light microscope due to different immersion conditions. Furthermore, adhesiveness had a negative correlation with hardness, chewiness, elasicity and cohesiveness. However, hardness was positively correlated well with chewiness, cohesiveness and resilience.

Key words: sea cucumber, water immersion, textural property, microstructure

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