Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: flower bud
Publication DOI: 10.1007/s002170000220Journal NLM ID: 100957634Publisher: Berlin: Springer
Correspondence: fatomas
natura.cebas.csic.es
Institutions: Department of Botany, Biology, University of Murcia, Espinardo, Spain, Phytochemical Laboratory, Department of Food Science and Technology, CEBAS (CSIC), Murcia, Spain
The flavonol content of commercial capers (pickled flower buds of Capparis spinosa L., C. sicula Veill. in Duham. and C. orientalis Veill. in Duham.) produced in different Mediterranean countries (Spain, Italy, Greece, Turkey and Morocco) has been analysed. The content of quercetin 3-rutinoside, kaempferol 3-rutinoside; and kaempferol 3-rhamnosyl-rutinoside as well as the aglycones (quercetin and kaempferol) were evaluated by HPLC coupled with a diode-array detector. The free aglycones were not detected in the original flower buds, indicating that they were produced during the brining process. In addition, brining extracted most of the kaempferol 3-rhamnosyl rutinoside present in the original buds, this being a minor constituent in pickled capers. The average content of flavonoid glycosides in commercial capers was 5.18 mg/g fresh weight. When this value is converted to the corresponding aglycones (quercetin and kaempferol), capers provide an average of 3.86 mg/g fresh weight. A serving of capers (10 g) will provide 65 mg of flavonoid glycosides or the equivalent 40 mg of quercetin as aglycone.
flavonols, Capparis spinosa, Capparis sicula, capers
Structure type: oligomer
C
27H
30O
16Location inside paper: p. 72, FIg. 1, 2
Trivial name: rutin, rutoside, rutin, quercetin rutinoside, rutoside, quercetin 3-O-rutinose, quercetin-3-O-rutinoside, quercetin 3-O-rutinoside
Compound class: saponin glycoside, glycoside, flavonoid glycoside, flavonol glycoside, flavone glycoside
Contained glycoepitopes: IEDB_136105,IEDB_142488,IEDB_144144,IEDB_146664,IEDB_225177,IEDB_885823,IEDB_983931,SB_192
Methods: HPLC, UV, extraction
Related record ID(s): 66336, 66338
NCBI Taxonomy refs (TaxIDs): 65558,
2494579,
1494405Reference(s) to other database(s): CCSD:
50720, CBank-STR:3399
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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