The invention discloses a mutton fat degumming method which comprises the following steps that a
citric acid solution is added to a mutton fat
raw material, acidizing is conducted under assistance of ultrasonic
waves, and acidized mutton fat is obtained; a certain quantity of
distilled water is added to the acidized mutton fat, the pH and the temperature of the acidized mutton fat are adjusted,
phospholipase A1 is added for conducting
ultrasound-assisted enzymolysis, and the mutton fat obtained after preliminary enzymolysis is obtained; the pH and the temperature of the mutton fat obtained after preliminary enzymolysis are adjusted,
phospholipase B is added for conducting
ultrasound-assisted enzymolysis, and mutton fat obtained after secondary enzymolysis is obtained; the pH and the temperature of the mutton fat obtained after secondary enzymolysis are adjusted,
phospholipase C is added for conducting
ultrasound-assisted enzymolysis, and mutton fat obtained after third enzymolysis is obtained,
enzyme deactivation
processing is conducted on the mutton fat obtained after third enzymolysis,
centrifugation is conducted to take fat samples on the upper layer, and mutton fat obtained after
enzyme deactivation is conducted is obtained; the mutton fat obtained after
enzyme deactivation is conducted is subjected to
vacuum drying processing, and degummed mutton fat is obtained. The mutton fat degumming method is safe in process and convenient and fast to operate.