Influence of pretreatment on walnut oil extraction with enzymatic method
The influence of pretreatment on percentage of walnut free oil extracted by aqueous enzymatic method was investigated.The results showed that lye(NaOH) peeling significantly reduced oil recovery rate.The increase of smashing degree was beneficial to walnut free oil extraction to some extent;Soaking conditions affected walnut oil extraction results.Enzyme deactivation could greatly enhance oil extraction rate after smashing and soaking.