A1 Refereed original research article in a scientific journal
Effects of Latitude and Weather Conditions on Proanthocyanidins in Blackcurrant (Ribes nigrum) of Finnish Commercial Cultivars
Authors: Wei Yang, Xueying Ma, Oskar A. Laaksonen, Wenjia He, Heikki Kallio and Baoru Yang
Publisher: American Chemical Society
Publication year: 2019
Journal: Journal of Agricultural and Food Chemistry
Volume: 67
Issue: 51
First page : 14038
Last page: 14047
Number of pages: 10
ISSN: 0021-8561
eISSN: 1520-5118
DOI: https://doi.org/10.1021/acs.jafc.9b06031
Web address : https://pubs.acs.org/doi/abs/10.1021/acs.jafc.9b06031
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/43468765
Blackcurrants of three Finnish commercial cultivars ‘Mortti’, ‘Ola’ and
‘Melalahti’ cultivated in southern and northern Finland were compared on
the basis of the content and composition of proanthocyanidins (PAs).
Seventeen B-type PA oligomers (degree of polymerization 2-5 and 7) were
detected by hydrophilic interaction liquid chromatography and
electrospray ionization mass spectrometry. Total PAs, dimers, trimers
and tetramers were quantified. Among the three cultivars, ‘Ola’ had the
highest contents of both total PAs and PA oligomers. ‘Melalahti’ was
separated from both ‘Mortti’ and ‘Ola’ by PA profiles in the partial
least squares discriminant analysis model. All three cultivars revealed
distinct responses to latitude and weather conditions. The content of
total PAs showed a positive correlation to latitude in ‘Ola’ and
‘Melalahti’. Among the meteorological variables, high temperature and
radiation correlated negatively with total PAs, while only specific
variables showed a correlation with PA oligomers.
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