| 摘要 |
Fruit juice concentrate processing prior to freeze-drying involves crushing of solids remaining in the juice and freezing the product at this stage. Up to 20% highly soluble sugar should be added to the starting product and the solid crushed in a bladed mixer, pref. for one minute at 4,000 to 5,500 rpm in the case of orange solids, 8,500-10,000 for pineapple. Ultrasonic mixers can be used.
|
