Mature ‚Bluecrop’ berries, with no visible damage on the fruit surface, were picked by hand and placed in CA consisting of 8 different CO₂:O₂ concentrations (12:1.5, 12:3, 12:6, 12:12 and 18:1.5, 18:3, 18:6, 18:12) and in common cold storage for 8 weeks at 0ºC. HPLC was used to separate and determine individual anthocyanins compounds in blueberry fruit. Bluecrop blueberries contained 14 anthocyanins: delphinidin-3-glucoside, delphinidin-3-galactoside, delphinidin-3-arabinoside, cyaniding-3-glucoside, cyanidin-3-galactoside, cyanidin-3-arabinoside, peonidin-3 glucoside, peonidin-3-galactoside, petunidin-3-glucoside, petunidin-3-galactoside, petunidin-3-arabinoside, malvidin-3-glucoside, malvidin-3-galactoside, malvidin-3-arabinoside. Higher contents of those pigments were observed in fruits stored in CA, especially in atmospheres of lower oxygen contents than in common cold storage. During successive dates of analysis the contents of those components decreased. Changes in the antioxidative activity of berries showed a high similarity with the total anthocyanin content.