从麸皮中提取肌醇的工艺研究

Studies on the technology of extracting inoses in wheat bran

探讨了从麸皮中提取肌醇的工艺流程以及其中 4个关键步骤的 p H值、温度和时间对肌醇提取量的影响。结果表明 :酸浸泡阶段的最适 p H值为 2 .5,温度 30℃ ,时间6～ 8h;石灰乳中和沉析菲汀阶段的最适 p H值为 6～ 7;菲汀水解阶段的温度应达到 2 0 0℃ ,时间达 1 0 h;石灰乳中和水解液除磷酸盐阶段的 p H值应控制在 7～ 1 0。在上述各种条件下肌醇提取量最大。

This paper investigates the technological process of extracting inoses in wheat bran,controls the pH values,temperatures and times in four key steps,and studies the effection of inoses extracting quantities from above-mentioned conditions.The results show:the first acid soaked stages,the proper pH values,temperatures and time is respectively 2.5,30 ℃ and 6-8 h.In the second neutralized and deposited phytins with the lime milk phases,the suitable pH values are 6-7.In the third phytins hydrolysised stage,the temperatures and times are respectively 200 ℃ and 10 h.In the fourth neutralized digest with the lime milk and eliminated phosphosalt phases,the pH values should be 7-10.The quantities of extracting inoses can attain to the maximums in these conditions.