以甘肃道地大宗中药材当归、黄芪、党参干燥品为试验材料，通过筛选帐膜材料及气体置换方法，建立中药材低氧高氮仓储气体环境，并对低氧高氮仓储环境下3种中药材的虫蛀、霉变情况及主效成分保持效果进行评价。结果表明，应用0.18 mm TPU膜、0.12 mm PVC膜和0.12 mm PE膜，采用排气法、负压抽洗法、循环制氮充气法均可创建出适于中药材仓储的低氧高氮气体环境。在该环境下仓储当归、黄芪和党参1 a，中药材不生虫、不发霉，有效成分含量显著高于空气仓储，保质期可延长7个月以上。

With dried products of Danggui， Huangqi and Dangshen of Chinese medicinal herbs in Gansu as the experimental materials，the screening film material and gas replacement methods were used to establish a low-oxygen and high-nitrogen gas environment for Chinese herbal medicines storage， and the effects on control of insect moth， mildew and retention of main effective components of three kinds of Chinese medicinal materials were evaluated under the low oxygen and high nitrogen storage conditions. The results show that 0.18 mm TPU film， 0.12 mm PVC film and 0.12 mm PE film can be used to create a suitable low oxygen and high nitrogen gas environment for storage of Chinese medicinal materials by exhaust method，negative pressure gas extraction method and cyclic nitrogen charging method. The application of this environment to store Danggui， Huangqi， and Dangshen for one year can avoid insects and mildews， and the content of the effective component is significantly higher than that in the air storage， and the shelf life can be prolonged for more than 7 months.

S567；R282.4

甘肃省农业科学院创新项目“甘肃道地大宗中药材低氧无硫绿色仓储技术研究示范”(2016GAAS23)。