Research on high hydrostatic pressure sterilization technology of soft-packing boiled bamboo shoots

This paper focused on the suitable high hydrostatic pressure (HHP) sterilization technology for softpacking boiled bamboo shoots. Single factor test and orthogonal test were used to study the effects of different pressure, pressure holding time and temperature on microflora and survival rate of boiled bamboo shoots.Correlation analysis and verification were taken to determine several better processes, the content of VCof these processes were discussed and compared with high pressure steam sterilization which met commercial sterilization afterward to find the optimal sterilization process. Results showed that the optimal sterilization process for soft-packing boiled bamboo shoots were as follows :350MPa, 15 min, 25℃. This processing sterilized effectively, and the VCretention rate was 82.2%, while the VCretention rate of high pressure steam was merely 30.7%.