Soybean Phytate Content and Its Influence on Tofu Texture

摘要

The variation factor in soybean phytate content and its influence on tofu texture was investigated. Twenty-seven soybean varieties were grown in a drained paddy field and upland field, and then their protein and phytate contents were determined using the FT-IR method. 12 soybean varieties grown in the drained paddy field contained significantly more phytate than those in the upland field. Variation in the phytate contents due to the different varieties was also observed. Therefore phytate content was affected by both environmental and hereditary factors. The increase of phytate concentration in soymilk shifted optimal coagulant concentration in both Mg and GDL tofu. The data showed the variation of phytate content influenced on tofu texture.