期刊
FOOD CHEMISTRY
卷 152, 期 -, 页码 467-474出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2013.11.142
关键词
Total antioxidant capacity; TEAC; BRAI; Red grape; Wine; Grape variety; Polyphenolic compounds; Training system; Bud load
资金
- Italian Ministry of Agriculture, Food and Forestal Policy
This study aims to assess the effect of three wine grape varieties, three training systems and two bud loads on the Total Antioxidant Capacity (TAC) and polyphenolic composition of Southern Italy red wines produced, during two vintages. Overall, Primitivo, Malvasia nera of Brindisi-Lecce and Montepulciano as grape varieties, single Guyot (SG), single spur pruned low cordon (SLC) and single spur pruned high wire cordon (HSLC) as training systems, 8 and 12 buds/plant as bud loads were compared. Significant differences in the polyphenolic families were shown by the grape varieties and by modifying the vine growing practices. Moreover, the results demonstrated that varieties influenced the TAC (indicating the Malvasia as the more effective one), that SLC led to the lowest level of TAC and that 8 buds/plant increased it. The relationship between antioxidant indexes and the concentration of single polyphenolic families was evaluated and the highest correlation was found between the total polyphenols and the proanthocyanidins family. (C) 2013 Elsevier Ltd. All rights reserved.
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