[关键词]
[摘要]
比较了测定冬虫夏草中甘露醇含量的两种方法。发现天然虫草和不同品种人工虫草制成品(胶囊剂)用容量法(A)测得的甘露醇含量比用比色法(B)测得的甘露醇含量要高,但天然虫草A/B比值较为接近,而不同品种人工虫草制成品(胶囊剂)的A/B比值波动较大。认为用比色法测定虫草中甘露醇含量较容量法更具特异性且快速简便。
[Key word]
[Abstract]
Two methods for the determination of mannitol in Cordyceps sinensis (Berk.) Sacc. were compared. The result showed that the content of mannitol in three species of natural Cordyceps sinensis (Berk.) Sacc. assayed by sodium thiosulfate titration (method A) were higher than that determined by colorimetric method (method B), but the ratio of A/B was very close (from 1.17 to 1.35). When the contents of mannitol in four kinds of fermented Cordycep capsules were compared, method A again showed a higher result than B, and the ratio of A/B varied from 1.15 to 3.47. It was obvious that determination of mannitol in Cordycep by colorimetric method is more specific, quick and simple than titration method.
[中图分类号]
[基金项目]