Sterilizing effect of pulsed light on the mould which is on the moon cake surface

The pulsed light sterilizing parameters for moon cake surface were optimized by RSM. The impacts of flash times,flash distance and flash energy,sterilization rate were investigated. Results showed that optimal sterilizing conditions were flash times of 34,flash distance of 10 cm,flash energy of 400 J. Under the optimized conditions,bacteria sterilization rate could reach to be 99.85%. The best sterilizing conditions were optimized by using RSM. In the number range of mold in National Standard,it could be extended 30 days than blank sample. The acid value and the peroxide value were in accordance with the National Standard. The pulsed light had no significant effect on the oil stability and quality of mooncake.