Study on Pleurotus ferulate varnebrodensis lenzi Freezing Technics

Using slow freezing and liquid nitrogen quick freezer by the fashion of spray and flowed state,the Pleurotus ferulate varnebrodensis lenzi freezing technics was studied through analyzing the freezing curve at different temperature,freezing speed and rate of juice leakage.The results show that there are obvious three freezing stages by slow freezing,but the three freezing stages are not obvious by liquid nitrogen flash freezer.The author propose that freeze this mushrooms under-60℃,frozen food were stored 9 months at-26℃,its rate of juice leakage less than 4.9% after thawing.