Biochemical composition and antiradical activity of rowanberry (Sorbus L.) cultivars and hybrids with different Rosaceae L. cultivars | Pīlādžu (Sorbus L.) šķirņu un to hibrīdu ar citiem Rosaceae L. augļaugiem antioksidatīvā aktivitāte un bioķīmiskais sastāvs
2009
Kampuss, K., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture | Kampuse, S., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Food Technology | Berna, E., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Food Technology | Kruma, Z., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Food Technology | Krasnova, I., Latvian State Inst. of Fruit-Growing, Dobele (Latvia) | Drudze, I., Pure Horticultural Research Centre, Tukuma reg. (Latvia)
Rowanberry (Sorbus aucuparia L.) is a common yellowish, wild berry that grows in the Northern part of Europe. Rowan has been described as an important source of flavonoids and their antioxidant activity affects reactive oxygen species and lipid peroxidation. The aim of this study was to evaluate the biochemical composition of 8 rowanberry cultivar fruits and the fruits of their hybrids with Rosaceae L. cultivars and to establish the correlation of their biochemical composition with antiradical activity. The experiments were done at the Faculty of Food Technology, Latvia University of Agriculture (LLU) and in the Latvia State Fruit Growing institute, Dobele. The content of ascorbic acid, the total phenols, anthocyanins, carotenoids, soluble solids, titrable acids, tannins and the antiradical activity of fresh and frozen rowanberry×hawthorn 'Granatnaya', rowanberry×chokeberry 'Likiornaya', rowanberry (Sorbus aucuparia) 'Rosina', rowanberry (Sorbus aucuparia) 'Zholtaya', wild rowanberry (Sorbus aucuparia), rowanberry×pear 'Alaya Krupnaya', rowanberry (Sorbus aucuparia) 'Rosina Variegata', rowanberry (Sorbus aucuparia) 'Krasnaya Krupnaya' were analysed. There were no significant differences between the chemical composition of fresh and frozen rowanberry samples. The highest content of ascorbic acid was in fruits of the rowanberry ‘Rosina’, 'Rosina Variegata', 'Krasnaya Krupnaya', and 'Zholtaya' (49 – 53 mg 100 gE-1). The highest content of carotenoids were detected in rowanberry×hawthorn 'Granatnaya‘ (13.04 mg 100 gE-1), but the highest phenol content was detected in the rowanberry and chokeberry hybrid 'Likiornaya' (484.9 mg 100 gE-1). 'Likiornaya' showed also the highest antiradical activity (11.2 g of berries per 1g of DPPH radical).
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