大豆レシチンの品質改善に関する研究 (第3報)
粉末大豆レシチンの製造について
1962 年 11 巻 3 号 p. 123-127
詳細
1962 年 11 巻 3 号 p. 123-127
To analyze the miscella stripping process of solvent extraction of soybeans in the battery system, the specific interfacial tensions of hexane miscella to water and their boiling points in various concentration were investigated.
It was found necessary to concentrate hexane miscella as possible at the beginning of stripping for preventing emulsification. It was possible to separate hydrated soybean lecithin of high purity by adding appropreated-water into the stripper at the end of stripping process and also by charging water into settling tank prior to send finished oil.
Then, the optimum condition was investigated to break down lecithin miscella and to bleach it by using hydrogen peroxide as bleaching agent and ammonium hydroxide as assistant. Further experiments have been made to survey the conditions for spray drying of aged materials.
A powdered soybean lecithin of 92 to 96% purity could be prepared without using any solvent.
