02143naa a2200337 a 450000100080000000500110000800800410001902400560006010000250011624501680014126000090030952010940031865000250141265000240143765000160146165000110147765000180148865000080150665300270151465300240154165300280156565300250159365300150161865300210163365300250165470000200167970000180169970000190171770000270173677300420176321463172022-09-09       2019    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1016/j.foodchem.2019.1251702DOI1 aPADILHA, C. V. da S.  aEffects of successive harvesting in the same year on quality and bioactive compounds of grapes and juices in semi-arid tropical viticulture.h[electronic resource]  c2019  aThe technological and polyphenolic parameters of grapes for juice processing obtained from successive harvests were studied in semi-arid tropical viticulture. Red grapes ?BRS Violeta? and ?Isabel Precoce? were harvested during the same year and analyzed based on a multivariate approach that included climatic variations. The grapes were marked by variations in flavonoid compounds, particularly anthocyanins. Temperature, global radiation, air velocity and evapotranspiration rates were associated with higher accumulation of bioactive polyphenols in grape berries and juices. The temperatures in February were associated with higher antioxidant activity in grape peels, while the highest thermal amplitude in August and November favored the accumulation of anthocyanins up to 564 mg kg−1. Flavanols and procyanidin compounds were more abundant in seeds when the maximum thermal amplitude was 13.8 °C. The climatic data together with the polyphenolic results point out useful information about appropriate periods for harvesting grapes with high phenolic content in tropical areas.  aAntioxidant activity  aBioactive compounds  aGrape juice  aGrapes  aSuco de Fruta  aUva  aAtividade antioxidante  aBioativos compostos  aCondições climáticas  aPerfil polifenólico  aSemiárido  aUvas brasileiras  aViticultura tropical1 aLIMA, M. dos S.1 aTOALDO, I. M.1 aPEREIRA, G. E.1 aBORDIGNON-LUIZA, M. T.  tFood Chemistrygv. 301, 125170, 2019.