Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2007
Volume 10
Issue 4
Topic:
Food Science and Technology
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
¦cibisz I. , Mitek M. 2007. ANTIOXIDANT PROPERTIES OF HIGHBUSH BLUEBERRY FRUIT CULTIVARS, EJPAU 10(4), #34.
Available Online: http://www.ejpau.media.pl/volume10/issue4/abs-34.html

ANTIOXIDANT PROPERTIES OF HIGHBUSH BLUEBERRY FRUIT CULTIVARS

Iwona ¦cibisz, Marta Mitek
Department of Food Technology, Division of Fruit and Vegetables Technology, Faculty of Food Technology, Warsaw Agricultural University, Poland

 

ABSTRACT



Antioxidant capacity, total phenolics, total anthocyanins and chlorogenic acid contents were evaluated in fruits of 14 cultivars of highbush blueberry (Vaccinium corymbosum L.) grown in Central Poland in the years of 2002-2004. In addition, fruits were analyzed for soluble solids, pH and total acidity. The total antioxidant capacity of berries was high and ranged from 23.1 to 43.7 µmol Trolox equivalents/g of fresh fruits. The antioxidant capacity was strongly correlated with the content of total anthocyanins and total phenolics. The total anthocyanins content ranged from 97.1 to 256.5 mg·100 g-1 of fresh fruits. The highest concentration of anthocyanins was found in cv. ‘Bluegold’ and the lowest in cv. ‘Darrow’. In the year 2002, when the berries shown the lowest fruit weight, the average anthocyanins content was the highest in all years. The most common cv ‘Bluecrop’ in Poland exhibited the highest chlorogenic content (in average for three years 92 mg·100 g-1 FW). The highest concentration of soluble solids was recorded for cv. ‘Brigitta Blue’ (15.5%). Antioxidant capacity and total phenolics, anthocyanins, chlorogenic acid content of highbush blueberry were strongly affected by genotype. Highbush blueberries exhibited also significant differences in antioxidant properties as a consequence of growing season.

Key words: highbush blueberry, cultivars, growing season, antioxidant activity, phenolics.


Iwona ¦cibisz
Department of Food Technology,
Division of Fruit and Vegetables Technology,
Faculty of Food Technology,
Warsaw Agricultural University, Poland
Nowoursynowska 159C, 02-787 Warsaw, Poland
Phone: 225937545
email: iwona_scibisz@sggw.pl

Marta Mitek
Department of Food Technology,
Division of Fruit and Vegetables Technology,
Faculty of Food Technology,
Warsaw Agricultural University, Poland
Nowoursynowska 159C, 02-787 Warsaw, Poland Phone: 225937545
email: marta_mitek@sggw.pl

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