Protein Product and Process for Making Protein Product from Uncooked Meat Purge
A precipitated purge protein is obtained from animal muscle tissue purge. Animal muscle tissue purge is mixed with a food grade acid to form an aqueous acidic solution of animal muscle tissue purge. The acidic solution is mixed with a food grade base to precipitate the protein in the solution. The precipitated protein then is recovered.
1 ) A protein rich purge composition comprising predominately sarcoplasmic proteins derived from purge of uncooked meat, said protein rich purge composition obtained by a process comprising the steps of:
a) recovering a quantity of purge that is a liquid exudate from uncooked animal muscle tissue that contains predominately sarcoplasmic proteins,
b) mixing said recovered purge with a food grade acid composition to form an aqueous acidic solution of purge protein having a pH below about 3.5.
c) mixing said aqueous acidic solution of purge protein with a food grade alkaline composition to form an aqueous composition of purge protein having a pH between about 4.7 and about 11.0 in which said sarcoplasmic proteins are precipitated; and
d) recovering said sarcoplasmic precipitated proteins as said protein rich purge composition, wherein sarcoplasmic precipitated proteins are present in an amount of at least 50% by weight of total protein;
wherein steps a) through d) are performed without the addition of other animal muscle tissue.
2 ) The composition of claim 1 wherein the purge is beef purge.
3 ) The composition of claim 1 wherein the purge is pork purge.
4 ) The composition of claim 1 wherein the purge is lamb purge.
5 ) The composition of claim 1 wherein the purge is chicken purge.
6 ) The composition of claim 1 , wherein the pH of the aqueous acidic solution is between about 2.5 and about 3.5.
7 ) The composition of claim 1 , wherein the pH of the precipitated protein is between about 5.5 and about 9.5.
8 ) The process for forming a protein rich purge composition from a purge, said process including the steps of:
a) recovering a quantity of purge that is a liquid exudate from uncooked animal muscle tissue, wherein the purge contains predominately sarcoplasmic proteins,
b) mixing the recovered purge with a food grade acid composition to form an aqueous acidic solution of purge protein having a pH between about 2.0 and about 3.5.
c) mixing said aqueous acidic solution of purge protein with a food grade alkaline composition to form an aqueous composition of purge protein having a pH between about 4.7 and about 11.0 in which the sarcoplasmic proteins are precipitated; and
d) recovering said sarcoplasmic precipitated proteins as the protein rich purge composition, wherein sarcoplasmic precipitated proteins are present in an amount of at least 50% by weight of total protein;
wherein steps a) through d) are performed without the addition of other animal muscle tissue.
9 ) The process of claim 8 wherein the purge is beef purge.
10 ) The process of claim 8 wherein the purge is pork purge.
11 ) The process of claim 8 wherein the purge is lamb purge.
12 ) The process of claim 8 wherein the purge is chicken purge.
13 ) The process of claim 8 , wherein the pH of the aqueous acidic solution is between about 2.5 and about 3.5.
14 ) The process of claim 8 , wherein the pH of the precipitated protein is between about 5.5 and about 9.5.