| Structure Identification: |
| BMC Complem. Altern. M., 2016, 16(1):1-8. | | Ultra-performance liquid chromatography-quadrupole/time-of-flight mass spectrometry analysis of the impact of processing on toxic components of Kansui Radix.[Reference: WebLink] | Kansui Radix (Gansui in Chinese), the dried tuber of Euphorbia kansui, is a Chinese medicinal herb commonly used for the treatment of oedema and ascites with dyspnea. Because of its toxic nature, the herb is usually processed with vinegar to reduce the toxicity. A report has shown that the contents of toxic terpenoids in Gansui decreased after processing with vinegar. However, comprehensive comparison of the chemical profiles between vinegar-processed and raw Gansui has not yet been conducted.
METHODS AND RESULTS:
Results showed that processing with vinegar caused conspicuous chemical changes. Among the altered components, 11 toxic terpenoids, 3-O-benzoyl-13-O- dodecanoylingenol/20-O-benzoyl-13-O-dodecanoylingenol, kansuinine D, kansuinine A, 3-O-benzoyl-13-O-dodecanoylingenol/20-O-benzoyl-13-O-dodecanoylingenol, 3-O- benzoylingenol/20-O-benzoylingenol, 20-O-(2′E,4′Z-decadienoyl)ingenol/20-O-(2′E,4′E- decadienoyl)ingenol/3-O-(2′E,4′Z-decadienoyl)ingenol/3-O-(2'E,4'E-Decadienoyl)ingenol ,
3-O-(2′E,4′Z-decadienoyl)-20-deoxyingenol,3-O-(2′E,4′Z-,ecadienoyl)-5-O-acetylingenol,3-O-(2′E,4′Z-decadienoyl)-20-O-acetylingenol,3-O-(2,3-dimethylbutanoyl)-13-O-dodecanoylingenol, were tentatively identified. The contents of most of these terpenoids were obviously decreased after processing with reductions of 6.66–95.25 %. |
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