the present invention provides a method for aqueous enzymatic extraction of soybean oil , which is in the field of extraction processing technology for plant oil . the method comprises treating crushed and peeled soybeans with an extrusion puffing process and a hydrolysis process with an alkaline proteinase , followed by a liquid nitrogen freezing and a high voltage electrostatic thawing process , and finally obtaining soybean oil by centrifugation . the benefits of the present invention includes short extraction time and high extraction yield . it saves up to 93 . 1 % of time in the freezing and thawing process alone . the total oil yield is up to 95 . 4 %. furthermore , the method of the invention produces high quality oil with a low peroxide value , a low p - anisidine value and a low totox value .