1) S. Tamura, “Softening Mechanism of Cooked Vegetables (Part 1) Effect of Added NaCl on Softening Cooked Japanese Radish Root”, J. Jpn. Soc. Home Eco., 38, pp.375-381 (1987)(Japanese)
2) H. Makino, K. Hatae and J. Shimada, “Effect of the Soaking in NaCl Solution on the Hardness of Cooked Bean”, J. Jpn. Soc. Home Eco., 38, pp.719-723 (1987)(Japanese)
3) M. Fuchigami, “Yasai no Pekuchin to Katasa”, New Food Ind., 30, pp.68-79 (1988)(Japanese)
4) The Japanese Society for Food Science and Technology (Ed.), “Shin·Shokuhin Bunsekihou”, Korin, pp.6-584 (1996)(Japanese)
5) T. Sugawara and A. Maekawa (Ed.), “Handbook of Foods Analysis”, Kenpakusha, p.142 (2000)(Japanese)