Antioxidant content of dark colored berries
Laen...
Kuupäev
2020
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Blackberries (Rubus caesius), elderberries (Sambucus nigra L), highbush blueberries
(Vaccinium corymbosum L) and black currants (Ribes nigrum) were selected for research on their
content of phenolic compounds, including anthocyanins and comparing their content in these
berries. Samples were also assayed for ascorbic acid and soluble solid content. The unifying mark
of these fruits is purple-black color, which indicates high content of anthocyanins. Analyses of
these fruits showed that they contain high biological activity components that justify the uses of
these fruits.
The research was done at the Department of Chemistry, Latvia University of Life Sciences and
Technologies, year 2019. Berry samples were bought at the supermarket (highbush blueberries)
or collected from garden in Jelgava, Latvia (blackberries, elderberries and black currants). All
berries were at full maturity. The content of ascorbic acid, total phenols, anthocyanins, flavonoids
as well as soluble solids was determined.
Descending order of ascorbic acid content in berries is: black currants > blackberries
> elderberries > highbush blueberries. Elderberries had the highest content of anthocyanins, total
phenols and flavonoids on average 161.5, 537.9 and 112.6 mg 100 g
-1 FW, respectively. The
content of soluble solids changes from 5.83 Brix (elderberries) to 13.67 Brix (black currants).
Kirjeldus
Märksõnad
berries, bioactive compounds, phenolic compounds, articles