We have reported previously that the absence
of 11SA4 could partially compensate for any negative effects of the
lower seed protein content (below 40%) on tofu quality (James &
Yang, 2014). The present results further demonstrated that the lack
of this polypeptide positively influences the textural hardness and
water holding capacity of tofu gels. This was particularly evident in
the high protein group, where the improvement in textural hardness
was statistically significant, allowing the group with high protein
content and without 11SA4 to clearly outperform the other
three groups in producing firmer tofu gels. The positive effect of
the absence of 11SA4 on tofu texture can also be affected by the
coagulants used during processing as well as seed production environment