Quality evaluation of red and white currant cultivars.

摘要

The quality of 7 red currant cultivars, 'Fertodi Korai', 'Red Dutch', 'Rachnovskaya', 'Heinemann's Rote Spatlese', 'Rovada', 'Varshevicha' and 'Viksnes Sarkanas', and 4 white currant cultivars, 'Cirvja Piets', 'White Dutch', 'Viksnes Baltas' and 'Werdavia', was determined. Ascorbic acid, total anthocyanins and soluble solids contents of fresh and frozen berries were measured. Average berry weight and number of flowers per raceme were evaluated. 'White Dutch' and Latvian 'Cirvja Piets' had the highest ascorbic acid content, Latvian 'Viksnes Sarkanas' and 'Varshevicha' had the highest anthocyanin content, and 'Werdavia', 'Heinemann's Rote Spatlese', and 'Red Duch' recorded the highest soluble solids content. 'Heinemann's Rote Spatlese' and 'Rovada' recorded the highest number of flowers per raceme. Frozen storage did not influence anthocyanin and soluble solids content, but significantly reduced ascorbic acid content for both red and white currant cultivars by 18.2% and 19.0% respectively in 2002 and 2003. The least ascorbic acid loss was in red currant 'Viksnes Sarkanas' (4.15%). The best white currant cultivars for fresh market following integrated analysis were 'White Dutch', 'Cirvja Piets', and 'Werdavia'. The best red currant cultivars were 'Heinemann's Rote Spatlese', 'Fertodi Korai' and 'Viksnes Sarkanas'..