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Evaluation of pollen as a source of kaempferol in rosemary honey
Author(s) -
Ferreres F,
Juan T,
PérezArquillué C,
HerreraMarteache A,
GarcíaViguera C,
TomásBarberán F A
Publication year - 1998
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/(sici)1097-0010(199808)77:4<506::aid-jsfa71>3.0.co;2-y
Subject(s) - pollen , kaempferol , botany , biology , traditional medicine , quercetin , medicine , biochemistry , antioxidant
The content of the flavonoid kaempferol in different experimental rosemary honey samples produced in Aragón (Spain) and in some commercial rosemary honey samples produced in different Spanish regions was evaluated by HPLC. The content ranged between 0·33 and 2·48 mg kg −1 of honey. Nectar has been suggested recently as the origin of this flavonoid. Rosemary pollen contained kaempferol 3‐diglucoside and 3‐glucoside, and therefore could be an alternative source for the kaempferol found in rosemary honey. However, there was no correlation between the kaempferol present in honey and pollen content. This suggests that the contribution of pollen flavonoids to the pool of flavonoids found in honey is very small, and that the search for phenolic markers of the botanical origin of honey should be addressed to the identification of nectar flavonoids or other nectar constituents. © 1998 SCI.