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A novel drying method using vacuum belt drying (VBD) technology for drying natural herb extract was proposed. The Panax notoginseng extract was investigated as an example of gentle VBD process. It is a natural herb product widely used in China and other Asia countries. Drying experiments were carried out at drying temperature of (90°C, 90°C), (100°C, 100°C), (110°C, 110°C), feeding speed of 15ml/min,...
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