02081nam a2200361 a 450000100080000000500110000800800410001910000190006024501340007926002060021330000140041950000120043352009050044565000110135065000220136165000260138365000080140965000130141765000080143065000100143865300310144865300210147965300270150065300150152765300140154265300420155665300270159865300160162565300190164170000190166070000220167970000180170119087302011-12-08       2011    bl uuuu     u00u1 u    #d1 aLIMA, L. L. A.  aPolyphenolic and chromatic characterization of tropical red wines produced in the São Francisco River Valley (Northeast Brazil).  aIn: INTERNATIONAL SYMPOSIUM OF THE GROUP OF INTERNATIONAL EXPERTS OF VITIVINICULTURAL SYSTEMS FOR COOPERATION, 17., 2011, Asti-Alba, Italy. Proceedings... [S.l.]: Le Progrès Agricole et Viticolec2011  ap. 33-35.  aResumo.  aYoung varietal and experimental wines from Vitis vinifera - Petit Verdot,Tempranillo and Syrah - cultivated in a tropical semiarid region (Northeast Brazil) were evaluated with regard to their phenolic composition and chromatic characteristics during a storage period of 12-month. The wine was stored in bottles and evaluated using spectrophotometry and high efficiency liquid chromatography to determine color, total polyphenols, anthocyanins, flavanols and flavonols. The Petit Verdot had a less color variation when compared to wines from temperate climates. Although the wines followed the traditional pattem of decreasing polyphenol concentration during storage, the concentrations of these compounds remained higher than those reported in literature, such as for the anthocyanins in Petit Verdot wines and transresveratrolin Syrah, showing possible beneficial health effects even after storage.  aGrapes  aAnálise química  aComposição química  aCor  aEnologia  aUva  aVinho  aCaracterística cromática  aCaracterização  aComposição fenólica  aPernambuco  aPolifenol  aRegião do Vale do Rio São Francisco  aVale do São Francisco  aVinho tinto  aVinho tropical1 aPEREIRA, G. E.1 aANDRADE, S. A. C.1 aGUERRA, N. B.