目的 采用正交試驗法優(yōu)化人參提取物的帶式干燥工藝。方法 以人參皂苷Rb1、人參皂苷Re、人參皂苷Rg1總量和提取物收率為考察指標，選擇加熱板溫度、履帶速度、進料速度為考察因素，采用L9(34)正交試驗確定人參提取物最佳帶式干燥工藝。結(jié)果 最佳干燥工藝條件是：加熱板溫度110 ℃，進料速度為25 L/h，履帶速度為180 mm/min。結(jié)論 帶式干燥所得提取物含量高，收率穩(wěn)定，適用于大規(guī)模生產(chǎn)。

Objective To optimize the belt drying process for ginseng extract using orthogonal test. Methods Taking the contents of ginsenoside Rb1, ginsenoside Re, ginsenoside Rg1, and extract yield as indexes, as well as heating plate temperature, track speed, and feeding speed as factors, the best belt drying process of ginseng extract was determined using L9(34) orthogonal test. Results The optimal drying process conditions were as follows: heating plate temperature of 110 ℃, feeding speed of 25 L/h, and track speed of 180 mm/min. Conclusion The extracts content is high and the yield is stable, which is suitable for mass production.