not the high globulin content of the Sp-P
. Quoting from Nakagawa
and Nagayama (1988), the extractability of proteins such as Sp-P
cannot necessarily be directly equated with their solubility. In
addition, some Sp-P although soluble in a specific solvent, may
not be extractable from muscle tissue in that same solvent because
they may be located in a site inaccessible to the solvent
or are bound rather than “free” (Hultin and Kelleher
2000).