The invention discloses a
liquid food novel non-thermal sterilization method, in particular a non-thermal sterilization method of cloudy apple juice which belongs to the
food processing technology field. The technical scheme includes adopting the aseptic operation to send the cloudy apple juice into a reaction vessel and adopting pulse type
carbon dioxide with
high density for the sterilization. The concrete operation step is: firstly, pumping
carbon dioxide with
high density into the reaction vessel; secondly, treating for a certain period at the set
temperature and pressure condition; thirdly, releasing the
carbon dioxide after the treatment to lower the pressure in the reaction vessel to the normal pressure; fourthly, operating the steps from the first to the third repeatedly for more than two times for the pulse type carbon dioxide with
high density treatment. The killing effect of
Escherichia coli in the cloudy apple juice which is processed in the invention can achieve the result of lowering at least five logarithms to satisfy the commercial aseptic requirement. Compared with the present non-thermal sterilization method, the invention has more obvious sterilization effect and can shorten the
treatment time and save energy. The invention has the advantages of low
processing temperature, energy saving and
environmental protection and can maintain the good
flavor of the cloudy apple juice.