| 摘要 |
Process for bleaching bleached plant matter. …<??>The process consists in bleaching the plant matter in two stages, separated by filtration and washing with water, by using aqueous alkaline solutions containing hydrogen peroxide, the quantities of alkaline agent in the solutions being such that, in the first bleaching stage, the pH at the end of this stage is at most equal to 9 and, in the second bleaching stage, the pH at the end of this stage is at most equal to 8.5. …<??>Application to the manufacture of plant fibres containing a low calorie content, useful as dietary flours. |
