We have also shownrecently that the absence of a particular 11S globulin polypeptide,11SA4, increased tofu firmness, confirming the results reported by others , however, found 11SA4 absence may affect the
breaking stress differently depending on the coagulant. evaluated 20 soybean varieties of various subunit
compositions and concluded that 11SA4 had a negative or no effect
on tofu hardness depending on growing year and coagulant used.