Characterization of Flavonoid Compounds in Common Swedish Berry Species
Berries are considered an ideal source of polyphenols, especially from the flavonoid group. In this study, we examined the flavonoid content in 16 varieties of Swedish lingonberry, raspberry, blueberry, and strawberry. Nineteen flavonoids were simultaneously quantified using external standards. An a...
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doaj-69af561641244ff7a8452e5c57ca67ae2020-11-25T03:15:26ZengMDPI AGFoods2304-81582020-03-019335810.3390/foods9030358foods9030358Characterization of Flavonoid Compounds in Common Swedish Berry SpeciesJiyun Liu0Mohammed E. Hefni1Cornelia M. Witthöft2Department of Chemistry and Biomedical Sciences, Faculty of Health and Life Sciences, Linnaeus University, 392 31 Kalmar, SwedenDepartment of Chemistry and Biomedical Sciences, Faculty of Health and Life Sciences, Linnaeus University, 392 31 Kalmar, SwedenDepartment of Chemistry and Biomedical Sciences, Faculty of Health and Life Sciences, Linnaeus University, 392 31 Kalmar, SwedenBerries are considered an ideal source of polyphenols, especially from the flavonoid group. In this study, we examined the flavonoid content in 16 varieties of Swedish lingonberry, raspberry, blueberry, and strawberry. Nineteen flavonoids were simultaneously quantified using external standards. An additional 29 flavonoids were tentatively identified using MS as no standards were available. Quantification was done using HPLC-UV after optimization of chromatographic and extraction procedures. The method showed high linearity within the range of 2−100 μg/mL (correlation co-efficient >0.999), intra- and inter-day precision of 1.7−7.3% and average recovery above 84% for all compounds. Blueberries and lingonberries were found to contain higher contents of flavonoids (1100 mg/100 g dry weight) than raspberries and strawberries (500 mg/100 g dry weight). Anthocyanins were the dominant flavonoids in all berries. The tentatively characterized compounds contribute 18%, 29%, 61%, and 67% of the total flavonoid content in strawberries, lingonberries, raspberries, and blueberries, respectively. Overall, Swedish berries were shown to be good sources of polyphenols.https://www.mdpi.com/2304-8158/9/3/358extractionflavonoidshplc-uv/mspolyphenolsswedish berries |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jiyun Liu Mohammed E. Hefni Cornelia M. Witthöft |
spellingShingle |
Jiyun Liu Mohammed E. Hefni Cornelia M. Witthöft Characterization of Flavonoid Compounds in Common Swedish Berry Species Foods extraction flavonoids hplc-uv/ms polyphenols swedish berries |
author_facet |
Jiyun Liu Mohammed E. Hefni Cornelia M. Witthöft |
author_sort |
Jiyun Liu |
title |
Characterization of Flavonoid Compounds in Common Swedish Berry Species |
title_short |
Characterization of Flavonoid Compounds in Common Swedish Berry Species |
title_full |
Characterization of Flavonoid Compounds in Common Swedish Berry Species |
title_fullStr |
Characterization of Flavonoid Compounds in Common Swedish Berry Species |
title_full_unstemmed |
Characterization of Flavonoid Compounds in Common Swedish Berry Species |
title_sort |
characterization of flavonoid compounds in common swedish berry species |
publisher |
MDPI AG |
series |
Foods |
issn |
2304-8158 |
publishDate |
2020-03-01 |
description |
Berries are considered an ideal source of polyphenols, especially from the flavonoid group. In this study, we examined the flavonoid content in 16 varieties of Swedish lingonberry, raspberry, blueberry, and strawberry. Nineteen flavonoids were simultaneously quantified using external standards. An additional 29 flavonoids were tentatively identified using MS as no standards were available. Quantification was done using HPLC-UV after optimization of chromatographic and extraction procedures. The method showed high linearity within the range of 2−100 μg/mL (correlation co-efficient >0.999), intra- and inter-day precision of 1.7−7.3% and average recovery above 84% for all compounds. Blueberries and lingonberries were found to contain higher contents of flavonoids (1100 mg/100 g dry weight) than raspberries and strawberries (500 mg/100 g dry weight). Anthocyanins were the dominant flavonoids in all berries. The tentatively characterized compounds contribute 18%, 29%, 61%, and 67% of the total flavonoid content in strawberries, lingonberries, raspberries, and blueberries, respectively. Overall, Swedish berries were shown to be good sources of polyphenols. |
topic |
extraction flavonoids hplc-uv/ms polyphenols swedish berries |
url |
https://www.mdpi.com/2304-8158/9/3/358 |
work_keys_str_mv |
AT jiyunliu characterizationofflavonoidcompoundsincommonswedishberryspecies AT mohammedehefni characterizationofflavonoidcompoundsincommonswedishberryspecies AT corneliamwitthoft characterizationofflavonoidcompoundsincommonswedishberryspecies |
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1724639374413398016 |