Comparison of Phytochemicals and Antioxidant Capacities of Some Standard and Organically Grown Highbush Blueberries (Vaccinium corymbosum L.)

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Çelik H., Ozgen M., Saraçoğlu O.

JOURNAL OF AGRICULTURAL SCIENCES-TARIM BILIMLERI DERGISI, vol.18, no.3, pp.167-176, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 3
  • Publication Date: 2012
  • Doi Number: 10.1501/tarimbil_0000001205
  • Journal Name: JOURNAL OF AGRICULTURAL SCIENCES-TARIM BILIMLERI DERGISI
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.167-176
  • Keywords: Highbush blueberries, Phenolics, Anthocyanins, Antioxidants, FRUIT-QUALITY, ANTHOCYANIN CONTENT, PHENOLIC CONTENT, MATURATION, CULTIVARS, GENOTYPES, MATURITY, PROFILE, POWER, FRAP
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

Blueberries are considered one of the important fruits for health benefits due to their antioxidant capacity and rich natural compounds. In this study, northern highbush blueberry cultivars 'Brigitta', 'Patriot', 'Bluecrop', 'Darrow' and 'Bluejay' (Vaccinium corymbosum L.) grown in standard and organic conditions in Black Sea Region were compared. Berry weight (g), TSS (%), organic acids (tartaric, ascorbic and citric acid), sugars (fructose and glucose), total phenolic compounds (mu g GAE gfw(-1)), total monomeric anthocyanins (TMA) (mu g cy-3-glu gfw(-1)) and total antioxidant activity (FRAP and TEAC) were determined. Berries were harvested when 75% of the skin color changed into blue color (June 15, 2010). Quantities of ascorbic acid, glucose, total phenolics and TMA changed between 0.015-0.027 g kg(-1), 3.79-4.75 g 100g(-1), 1593.3-2362.4 mu g GAE gfw(-1), 57.7-267.2 mu mol TE gta(-1) respectively. Total antioxidant activity changed between 3.80-6.51 FRAP mu mol TE g fw(-1) and 2.32-5.29 TEAC mu mol TE g fw(-1). While blueberries grown in standard system exhibited higher tartaric acid, citric acid, ascorbic acid, glucose, TEAC and berry weight, blueberries grown organically showed higher total phenolics, TMA, FRAP and malic acid.