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Volume 30 Issue 5
Aug 2016
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Chinese Journal of High Pressure Physics  > 2016  >  30(5): 434-440.
PAN Ling, ZHOU Bing, GUO Xiao-Qian, ZHANG Lu-Yao, HU Xiao-Song, ZHANG Yan. Effect of Thermal Sterilization and High Hydrostatic Pressureon Shelf Life and Quality of Vinasse Shrimps[J]. Chinese Journal of High Pressure Physics, 2016, 30(5): 434-440. doi: 10.11858/gywlxb.2016.05.014
Citation: PAN Ling, ZHOU Bing, GUO Xiao-Qian, ZHANG Lu-Yao, HU Xiao-Song, ZHANG Yan. Effect of Thermal Sterilization and High Hydrostatic Pressureon Shelf Life and Quality of Vinasse Shrimps[J]. Chinese Journal of High Pressure Physics, 2016, 30(5): 434-440. doi: 10.11858/gywlxb.2016.05.014
shu

Effect of Thermal Sterilization and High Hydrostatic Pressureon Shelf Life and Quality of Vinasse Shrimps

doi: 10.11858/gywlxb.2016.05.014

  • College of Food Science and Nutritional Engineering, China Agricultural University; National Engineering Research Center for Fruits and Vegetables Processing, Ministry of Science and Technology; Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Beijing 100083, China

  • Received Date: 21 Jan 2015
  • Rev Recd Date: 26 Jan 2015
    Abstract
  • In order to study the shelf life and quality of vinasse shrimps after sterilization, we conducted thermal and high hydrostatic pressure (HHP) treatments in the sterilization process.The curves that describe the relationship between the total plate count and the sterilizing time are obtained, showing that the optimal experiment conditions of thermal and HHP treatments are 550 MPa, 10 min and 85 ℃, 20 min, respectively.The quality of shrimp samples was evaluated by the physicochemical indexes and sensory evaluation.The results show that there are little changes in pH and moisture content of samples during storage.After 30 d storage, the comprehensive scores of HHP and thermal groups are lower than those of the control group and the sensory scores of samples in the HHP group are higher than those in the thermal group.After 90 d storage, the total plate count of samples in HHP group increases to 2.5×104 cfu/g, which is close to the industrial standard limit (3.0×104 cfu/g) and significantly higher than the thermal group.Accordingly, the TVB-N value is also higher.

     

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