Journal
FRONTIERS IN PLANT SCIENCE
Volume 11, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fpls.2020.573531
Keywords
Vaccinium ashei; antioxidant compounds; anthocyanin; electronic tongue; sensory properties
Categories
Funding
- National Natural Science Foundation of China [31301838, 31601709]
- Natural Science Foundation of Jiangsu Province, China [BK20160597, BK20170615]
- Key Research and Development Plan (Modern Agriculture) of Jiangsu Province, China [BE2017373]
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To better understand the effect of growing location on the phytochemical compounds and sensory properties of blueberry (Vacciniumspp.), here we investigated rabbiteye blueberry 'Brightwell' (Vaccinium asheicv. 'Brightwell') grown in 10 locations of China. Significant differences in terms of total soluble solids, titratable acidity, flavonoids, phenols, as well as proanthocyanidins and anthocyanins, were found in the fruits (berries) of blueberry plants among the different sampled locations. Furthermore, their sensory properties, which evaluated by the electronic tongue method, also significantly differed among the 10 locations. The content of flavonoids, phenols, proanthocyanidins, and anthocyanins all had significant correlations with sensory properties, except that of aftertaste-astringency. A key finding to emerge was that blueberry plants grown at high altitude locations harbored a high content of total soluble solids, flavonoids, phenols, proanthocyanidins, and anthocyanins along with high scores for the sweetness. These results suggested cultivating blueberry at high altitude can produce fruit that not only possess pronounced beneficial health effects but also good taste.
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