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Isolation and structure elucidation of cistusin: A new ellagitannin from Cistus × incanus L. leaves
- Source :
- Industrial Crops and Products. 158:112971
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- The leaves of Cistus × incanus L. (pink rock-rose) are used as plant material rich in antioxidants by the pharmaceutical and food industry. The main components which occur in pink rock-rose are polyphenols, especially flavonoids (glycosides of flavonols) and tannins (proanthocyanidins and ellagitannins). Derivatives of flavonols and flavan-3-ols as bioactive compounds of this species were identified previously. However, the full composition of ellagitannins has not been characterized yet. In this context, the study aimed to characterize the chemical composition of pink rock-rose ellagitannins and to identify and elucidate structures of major compounds from this group. In conclusion, the new ellagitannin cistusin together with well-known terflavin A and punicalagin from C. incanus leaves were isolated. Their structures, including the gallagyl, flavogallonyl, valoneoyl, and hexahydroxydiphenoyl acyl groups, were revealed by spectroscopic evidence (HR-ESI-MS, 1D and 2D-NMR).
- Subjects :
- 0106 biological sciences
chemistry.chemical_classification
biology
010405 organic chemistry
Chemistry
Cistus × incanus
Context (language use)
biology.organism_classification
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
Flavonols
Ellagitannin
Proanthocyanidin
Polyphenol
Cistus
Botany
Agronomy and Crop Science
010606 plant biology & botany
Punicalagin
Subjects
Details
- ISSN :
- 09266690
- Volume :
- 158
- Database :
- OpenAIRE
- Journal :
- Industrial Crops and Products
- Accession number :
- edsair.doi...........b029d4fb7d4439c53bbf06cfdf906f68