CHEMICAL AND ANTIOXIDANT PROPERTIES OF FULLY MATURED RASPBERRY FRUITS (RUBUS IDAEUS L.) PICKED IN DIFFERENT MOMENTS OF HARVESTING SEASON
Fruits of the most abundant raspberry cultivars in Serbia (Willamette and Meeker) were collected in abac growing area, Serbia.
The harvest of fully matured raspberry samples from each cultivar is conducted at nearly 2-weeks intervals throughout the harvest season, and further analyzed for main phenolics and antioxidant capacity.
Using high-performance liquid chromatography, in all samples quite high content of ellagic acid (from 27.5 to 29.2 mg/100 g fw for Willamette; from 21.0 to 25.1 mg/100 g fw for Meeker) and cyanidin (from 38.7 to 43.2 mg/100 g fw for Willamette; from 21.3 to 30.4 mg/100 g fw for Meeker) were determined. Significant amounts of quercetin (up to 1.1 mg/100 g fw), apigenin (up to 0.4 mg/ 100 g fw), gallic acid (up to 6.1 mg/100 g fw), and pelargonidin (up to 5.1 mg/100 g fw) were also detected in all samples. In general, contents of quercetin, apigenin, ellagic acid and cyanidin were higher in fruits of Willamette than that of fruits of Meeker. On the other hand, gallic acid and pelargonidin are more abundant in fruits of Meeker.
In fruits of Willamette and Meeker, the concentrations of main phenolics, and consequently the total anthocyanin, total flavonoid and total phenolic contents, significantly change in fully matured raspberry fruits during harvest season. Determination of antioxidant capacity of all raspberry samples revealed a significant influence of picking moments during harvest season. Furthermore, no significant correspondence between antioxidant capacity and total anthocyanin content was evidenced. On the other hand, an increase in antioxidant capacity corresponds to the increase in the total flavonoid and total phenolic content.
Using high-performance liquid chromatography, in all samples quite high content of ellagic acid (from 27.5 to 29.2 mg/100 g fw for Willamette; from 21.0 to 25.1 mg/100 g fw for Meeker) and cyanidin (from 38.7 to 43.2 mg/100 g fw for Willamette; from 21.3 to 30.4 mg/100 g fw for Meeker) were determined. Significant amounts of quercetin (up to 1.1 mg/100 g fw), apigenin (up to 0.4 mg/ 100 g fw), gallic acid (up to 6.1 mg/100 g fw), and pelargonidin (up to 5.1 mg/100 g fw) were also detected in all samples. In general, contents of quercetin, apigenin, ellagic acid and cyanidin were higher in fruits of Willamette than that of fruits of Meeker. On the other hand, gallic acid and pelargonidin are more abundant in fruits of Meeker.
In fruits of Willamette and Meeker, the concentrations of main phenolics, and consequently the total anthocyanin, total flavonoid and total phenolic contents, significantly change in fully matured raspberry fruits during harvest season. Determination of antioxidant capacity of all raspberry samples revealed a significant influence of picking moments during harvest season. Furthermore, no significant correspondence between antioxidant capacity and total anthocyanin content was evidenced. On the other hand, an increase in antioxidant capacity corresponds to the increase in the total flavonoid and total phenolic content.
Miletić, N., Leposavić, A., Popović, B., Mitrović , O. and Kandić, M. (2015). CHEMICAL AND ANTIOXIDANT PROPERTIES OF FULLY MATURED RASPBERRY FRUITS (RUBUS IDAEUS L.) PICKED IN DIFFERENT MOMENTS OF HARVESTING SEASON. Acta Hortic. 1099, 211-218
DOI: 10.17660/ActaHortic.2015.1099.22
https://doi.org/10.17660/ActaHortic.2015.1099.22
DOI: 10.17660/ActaHortic.2015.1099.22
https://doi.org/10.17660/ActaHortic.2015.1099.22
'Willamette', 'Meeker', anthocyanins, phenolics, HPLC-DAD, ellagic acid, cyanidin
English
1099_22
211-218
- Commission Banana
- Division Temperate Tree Fruits
- Division Physiology and Plant-Environment Interactions of Horticultural Crops in Field Systems
- Division Vine and Berry Fruits
- Division Tropical and Subtropical Fruit and Nuts
- Division Temperate Tree Nuts
- Division Horticulture for Human Health
- Division Ornamental Plants
- Division Protected Cultivation and Soilless Culture
- Division Vegetables, Roots and Tubers