PRELIMINARY RESULTS OF BIOCHEMICAL COMPOSITION OF TWO CRANBERRY SPECIES GROWN IN LATVIA

B. Tikuma, M. Liepniece, D. Sterne, M. Abolins, D. Seglina , I. Krasnova
The American large-fruited cranberries (V. macrocarpon Ait.) have become over the last 15 years some of the most popular berries grown in Latvia. Nutrition studies suggest that cranberries help keep us healthy. Cranberries occupy 130 ha in Latvia, but in the future it is planned to increase plantations. Latvia has little research about big cranberry cultivars for biochemical composition and their comparison with the wild-growing berries.
The objective of the study was to determine the biochemical composition of two cranberry species: V. macrocarpon Ait. cultivars ‘Stevens’, ‘Bergman’, ‘Pilgrim’, ‘Early Black’, Latvian bred big cranberry cultivar ‘Septembra’ and wild cranberry V. oxycoccus L. The V. macrocarpon berries were harvested from three commercial cranberry plantations: one plantation was located on mineral soil + substratum, two plantations are organized in the high peat bogs. V. oxycoccus L. fruit were harvested from one natural habitat – Nature Reserve of Teici. The berries were collected in 2011 and until analysis stored in a freezer at -18°C temperature. Before analysing the samples were taken out from the freezer and thawed at temperature +18±1°C for three hours. The content of ascorbic acid, total phenolic, total anthocyanins, titrable acids and soluble solids were analyzed.
The results showed that V. oxycoccus L. has higher ascorbic acid (31 mg 100 g-1), soluble solid (9.9 Brix%) and titrable acid (3.5 mg 100 g-1) content compared to V. macrocarpon Ait. cultivars. Cultivar ‘Early Black’ contained the highest amount of anthocyanins and phenolic (105 and 441 mg 100 g-1, respectively). Latvian cultivar ‘Septembra’ showed a high level of ascorbic acid (28.6 mg per 100 g-1) and anthocyanins (82.5 mg per 100 g-1) content compared to other surveyed species. The results show that there is a significant difference in biochemical composition between the studied cranberry cultivars and species.
Tikuma, B., Liepniece, M., Sterne, D., Abolins, M., Seglina , D. and Krasnova , I. 2014. PRELIMINARY RESULTS OF BIOCHEMICAL COMPOSITION OF TWO CRANBERRY SPECIES GROWN IN LATVIA. Acta Hort. (ISHS) 1017:209-214
http://www.actahort.org/books/1017/1017_26.htm
Vaccinium macrocarpon Ait., Vaccinium oxycoccus L., wild cranberry, ascorbic acid, total phenol, anthocyanins, soluble solids
English

Acta Horticulturae