This invention discloses a non-thermal sterilization and
flavor preservation process for pre-prepared wild
vegetable dishes, relating to the field of
food processing technology. The process includes: sequentially subjecting the wild vegetable raw materials to acidic
plasma-activated
water baths and alkaline
plasma-activated
water baths, with both baths supplemented by ultrasonic treatment; subsequently, acidic
plasma-activated water nano-atomization treatment; followed by low-temperature vacuum impregnation and low-temperature vacuum
dehydration; after
seasoning and mixing, a three-layer edible
coating film is formed on the surface, comprising a
chitosan layer, a
nanocellulose layer, and a
chitosan layer containing
plant essential oils; finally,
modified atmosphere packaging and storage and transportation under
cold chain conditions. This invention, through stepwise treatment of acidic activated water sterilization and alkaline activated water
enzyme inactivation, combined with atomization supplementary sterilization,
flavor impregnation, microcapsule sustained release, and multi-layer
coating, improves the
microbial safety and
flavor quality preservation of pre-prepared wild
vegetable dishes without the addition of preservatives.