AI Article Synopsis
- Extraction of (+)-dihydromyricetin was conducted from 16 g of Ampelopsis grossedentata leaves using a specialized preparative triple-column countercurrent chromatograph.
- A solvent mixture of n-hexane, ethyl acetate, methanol, and water in a specific ratio was used to facilitate the purification process.
- The final yield of purified (+)-dihydromyricetin was 11.3 g with a purity exceeding 99%, achieved within 9 hours, as confirmed by HPLC at 254 nm.
Article Abstract
Purification of (+)-dihydromyricetin from an extract (16 g) of leaves of Ampelopsis grossedentata was performed using a preparative triple-column countercurrent chromatograph. With a solvent system composed of n-hexane-ethyl acetate-methanol-water (1:3:2:4, v/v) 11.3 g of (+)-dihydromyricetin was obtained at a high purity of over 99% by HPLC at 254 nm in 9 h.
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| http://dx.doi.org/10.1016/s0021-9673(02)01092-0 | DOI Listing |
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