訂正日: 2008/11/27訂正理由: -訂正箇所: 論文抄録訂正内容: Wrong : Soybean meal was treated with various acids to bring it close to the isoesictric point of protein. By this treatment, the axis ratio of protein was changed some degree. For this purpose organic acid is preferable to inorganic acid in general, and lactic acid favoured better than acetic and hydrochloric acids. Meal treated with phosphoric acid appears less suitable for the source of preparing fiber. The protein obtained through this process shows an inferior dispersion to that of non-treated, protein.