Protein composition and process for isolating a protein composition from a muscle source
AssigneeAdvanced Protein Technologies Corp.
InventorsHerbert O. Hultin, Stephen D. Kelleher
Life of this patent
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Abstract
A process is provided for isolating a protein component of animal muscle tissue by mixing a particulate form of the tissue with an acidic aqueous liquid having a pH below about 3.5 to produce a protein rich solution substantially free of myofibrils and sarcomere tissue structure. The protein rich aqueous solution can be treated to effect protein precipitation, followed by protein recovery.
Claims17
A protein containing solid composition recovered from an animal muscle tissue which comprises myofibrillar and sarcplasmic proteins substantially free of myofibrils and sarcomeres and containing membrane proteins of said animal muscle tissue, said proteins capable of being formed into a gel having a strain value of at least 1.1, said protein containing solid composition being formed by the process of:
- providing particulate animal muscle tissue free of internal organs, intestines and head of an animal,
- mixing said particulate animal muscle tissue with an acidic aqueous solution at a pH less than about 3.5 to solubilize substantially all of animal muscle proteins and to open up said myofibrillar proteins of said particulate animal muscle tissue in acidic solution,
- precipitating said animal muscle proteins containing said membrane proteins in said acidic solution by raising pH or raising ionic strength of said acidic solution to form precipitated animal muscle proteins containing said membrane proteins,
- and recovering said precipitated animal muscle proteins containing said membrane proteins substantially free of said myofibrils and sarcomeres capable of forming a gel having a strain value of at least 1.1.
Dependencies are inferred from the claim text.