The application discloses a vacuum tumbling and flavoring and packaging process for prolonging the
shelf life of marinated eggs, and relates to the technical field of
egg product processing. The process comprises the following steps: performing a transglutaminase
enzyme method pre-structuring treatment on the naked marinated eggs after pre-cooking and shelling; preparing double-function layered concentrated marinade composed of a
permeation function layer marinade and a protection function layer marinade; vacuum sealing the naked marinated eggs and the marinade in a flexible
steaming bag at a weight ratio of 2:1; performing
variable pressure pulsating vacuum tumbling and flavoring in a vacuum tumbling
machine under deep vacuum, micro-
positive pressure nitrogen and normal pressure alternating circulation; vacuumizing and
nitrogen-filling and sealing and standing after tumbling; performing double-peak ladder sterilization including a first high-temperature stage and a second medium-temperature stage; and finally performing gradient cooling including natural
slow cooling, cold water spraying and
room temperature balancing in sequence. The application realizes prolonging the
shelf life of marinated eggs and improving texture and
flavor at a lower sterilization temperature.