INFLUENCE OF TERMINAL PRESSURE AND COMPENSATED WATER ON VACUUM PRECOOLING OF WAXBERRY

By taking waxberry as experimental subjects at different terminal pressure in vacuum pre-cooling，we found that with the loss of the terminal pressure，waxberry pre-cooling terminal temperature has a tendency to reduce within a certain temperature and pressure range，but not obvious.The pre-cooling results of waxberry with humidification treatment is much better than the control group without making humidification.In about 20 minutes，25℃ waxberry can be reduced to about 15℃ with vacuum pre-cooling method，which has a great gap to the most appropriate storage temperature 2℃ for waxberry.So waxberry pre-cooling effect is not ideal，other pre-cooling ways can be considered.