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Advisor(s)
Abstract(s)
Introduction
Fragaria vesca L. (Rosaceae), wild strawberry, belongs to Rosaceae family and is commonly found in
roadsides and slopes [1]. Its small sweet fruits can be consumed as sources of vitamin C, either in
fresh or in infusions used for the treatment of intestinal disorders [2].
Objectives, Material and Methods
Herein, the fruits of wild F. vesca were characterized in terms of nutritional value (carbohydrates,
proteins, fat, ash, and energy value), dietary fiber content and fatty acids profile. Furthermore, both
the fruits and corresponding infusions were characterized by their content in soluble sugars, organic
acids, folates and tocopherols by HLPC coupled to RI, DAD and FL detectors, respectively, and also
for their mineral elements composition, evaluated by EAA.
Results
Carbohydrates were the main macronutrient found in F. vesca fruits, followed by fat, ash and
proteins. They also contain high levels of dietary fiber, mainly as soluble dietary fiber. Linolenic
(C18:3n3) and γ-linolenic acids (C18:3n6) were the main fatty acids found in the fruits, highlighting
a prevalence of polyunsaturated fatty acids (PUFA). The fruits and corresponding infusion showed
sucrose, followed by fructose as main sugars. Citric acid was the most abundant organic acid in both
samples; while oxalic and ascorbic acids were only detected in traces in the infusion. In terms of
microelements, manganese was the most abundant in both forms. Potassium and calcium were the
main macroelements found in the fruits and their infusion, respectively. In terms of vitamins, both
samples presented folates (vitamin B9) and tocopherols (vitamin E), being γ-tocopherol the main
isoform found, followed by α-tocopherol. By the way, in the infusion only α-tocopherol was detected.
Conclusions
Although fruits of wild F. vesca are mainly consumed in fresh, this study also proves the potentiality
of their infusions as a source of bioactive molecules.
Description
Keywords
Fragaria vesca L. fruits Nutritional value Chromatography Bioactive molecules
Pedagogical Context
Citation
Dias, Maria Inês; Caleja, Cristina; Barros, Lillian; Oliveira, M.B.P.P.; Morales, Patricia; Sánchez-Mata, María Cortes; Ferreira, Isabel C.F.R. (2015). Fragaria vesca L. fruits as sources of high valuable bioactive molecules. In EuroFoodChem XVIII International Conference 2015. Madrid