US4269975A - Preparation of guar gum - Google Patents
Guar gum is prepared by hydrating guar splits with sufficient water to provide a total moisture content of 25-80%, extruding the hydrated splits, and grinding them, while wet, preferably to a finely divided state. For most uses the ground gum is then dried, preferably in a flash dryer. Typically the hydration is carried out at 5°-95° C. for at least 1/4 hour; the preferred conditions …
Đọc thêm