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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Oltica Giorgiana Stanciu1, Daniel Severus Dezmirean1 and Maria Graca Campos2
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DOI:10.17265/2161-6256/2016.01.003
Affiliation(s)
1. Life Science Institute, Department of Animal Science Technologies, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, Cluj-Napoca 400372, Romania
2. Coimbra Chemistry Centre (CQC, FCT Unit 313) and Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga De Santa Coimbra, Coimbra 3000-370l, Portugal
ABSTRACT
A melissopalynological study carried out on 35 bee pollen
samples from Romania (Transylvania)
shows predominant species
as Taraxacum officinale, Tilia sp., Verbascum sp., Zea mays L., Onobrychis viciifolia Scop., Geranium sanguineum L., Filipendula ulmaria L., Cydonia oblonga L., Calluna vulgaris L. and Brassica sp.. This is the first time for the contribution of total phenolic (TP) and total carotenoid (TC) content to the modified oxygen radical absorbance capacity (ORACFL)
values in 29 monofloral samples. Hydrophilic ORACFL (H-ORACFL) values ranged between
7.13-10.12 µmol TE/g and 6.94-22.46 µmol TE/g, whereas lipophilic ORACFL (L-ORACFL) values were between 2.19-7.79
µmol TE/g
and
1.65-9.96 µmol TE/g,
in multifloral and monofloral samples, respectively. It has proved
the
complex involvement of botanical origins on the antioxidant features with a
specific occurrence. Some monofloral samples presented particular high
antioxidant potential, such as Salix sp., Taraxacum officinale, Matricaria chamomilla, Cichorium
intybus and the poorly
studied Cirsium arvense (L.) Scop. and Scilla bifolia L.. New variables, such as soil
characteristics, climates together with botanical origins, were introduced in a
multivariate analysis of antioxidant data matrix, given a possible important involvement
of all of them in affecting, not only the phytochemical composition, but
thereafter the antioxidant capacity. All these data could be crucial to a new
way of gathering, by beekeepers, depending on the market demand and the
purposes for the product that has a potential for further therapeutic
bioactivities investigations, and added value in the enrichment of certain
products.
KEYWORDS
Pollen, ORAC, antioxidant, flavonoids, carotenoids.
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