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[目的]研究不同处理方式对萹蓄中亚硝酸盐含量的影响,为消费者合理选用与处理中草药萹蓄提供科学依据。[方法]将不同区域采集的萹蓄样品(去根)用自来水洗涤干净,沥干。分别随机均匀分成3份,以室温散放(20～30℃);恒温烘干(60℃)和露天晒干3种方法进行处理,分别测定萹蓄样品中的亚硝酸盐含量。[结果]萹蓄在室温散放的条件下,其亚硝酸盐含量均数均随存储时间的增加而增加,其中48 h后均显著增加;萹蓄在烘干与晒干的条件下,亚硝酸盐含量均数均随煎煮时间的增加而增加;组间差异不显著。[结论]为提高食用和药用萹蓄的安全性,应选择荒野萹蓄,且储存时间不宜超过48 h。对萹蓄干样的煎煮时间应控制在6 min以内。干燥方式不影响萹蓄的亚硝酸盐含量。
[Objective] The research aimed to study the effects of different treatment methods on the content of nitrite in the storage, and provide the scientific basis for the rational selection and handling of Chinese herbal medicines by consumers. [Method] The samples collected from different regions (to the root) were washed with tap water and drained. The samples were divided into 3 parts randomly and were treated at room temperature (20 ~ 30 ℃), constant temperature drying (60 ℃) and open-air drying for 3 days. The contents of nitrite in the samples were respectively determined. [Result] Under the conditions of storage at room temperature, the average content of nitrite increased with the increase of storage time, and increased significantly after 48 h. Under the conditions of drying and drying, The average nitrate content increased with the increase of boiling time; the difference between groups was not significant. [Conclusion] In order to improve the safety of edible and medicinal poultice, we should choose wilderness pens for storage, and the storage time should not exceed 48 h. Boil dry storage of boiling time should be controlled within 6 min. Drying does not affect the storage of nitrite content.