PMID- 24195612
OWN - NLM
STAT- MEDLINE
DCOM- 20140812
LR  - 20211021
IS  - 1471-2229 (Electronic)
IS  - 1471-2229 (Linking)
VI  - 13
DP  - 2013 Nov 6
TI  - Effect of artificial shading on the tannin accumulation and aromatic composition 
      of the Grillo cultivar (Vitis vinifera L.).
PG  - 175
LID - 10.1186/1471-2229-13-175 [doi]
AB  - BACKGROUND: White wine quality, especially in warm climates, is affected by 
      sunlight and heat stress. These factors increase the probability that ambering 
      processes will occur and reduce the potential flavour compounds. This study aimed 
      to investigate the effect of sunlight reduction on the accumulation of 
      polyphenolic and aromatic compounds. RESULTS: This study was conducted in a 
      commercial vineyard containing V. vinifera L. cv Grillo. Opaque polypropylene 
      boxes (100% shading) and high-density polyethylene (HDPE) net bags (50% shading) 
      were applied at fruit set. The effect of the shaded treatments was compared to 
      the exposed fruit treatment. The shaded treatments resulted in heavier berries 
      and lower must sugar contents than the exposed treatments. Proanthocyanidins and 
      total polyphenol levels were similar in the exposed and bagged grapes; however, 
      the levels were always lower in the boxed fruit. At harvest, the highest aroma 
      level was measured in the boxed fruits. CONCLUSIONS: The boxed fruit had less 
      sugar, fewer proanthocyanidins and more flavours than the exposed grapes.The 
      reduction in flavanols reactive to p-dimethylamino-cinnamaldehyde as (+)-catechin 
      equivalents and total skin proanthocyanidins is an important result for the white 
      winemaking process. In addition, the higher level of aromatic compounds in shaded 
      grapes at harvest is an important contribution to the development of different 
      wine styles.
FAU - Scafidi, Pietro
AU  - Scafidi P
FAU - Pisciotta, Antonino
AU  - Pisciotta A
FAU - Patti, Davide
AU  - Patti D
FAU - Tamborra, Pasquale
AU  - Tamborra P
FAU - Di Lorenzo, Rosario
AU  - Di Lorenzo R
FAU - Barbagallo, Maria Gabriella
AU  - Barbagallo MG
AD  - Department of Agricultural and Forest Sciences, Universita degli Studi di 
      Palermo, Viale delle Scienze 11 ed, H, Palermo 90128, Italy. 
      mariagabriella.barbagallo@unipa.it.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20131106
PL  - England
TA  - BMC Plant Biol
JT  - BMC plant biology
JID - 100967807
RN  - 0 (Hydrocarbons, Aromatic)
RN  - 0 (Proanthocyanidins)
RN  - 0 (Tannins)
RN  - 0 (Terpenes)
SB  - IM
MH  - Fruit/growth & development/metabolism/radiation effects
MH  - Glycosylation
MH  - Hydrocarbons, Aromatic/*metabolism
MH  - Proanthocyanidins/metabolism
MH  - Solubility
MH  - Sunlight
MH  - Tannins/*metabolism
MH  - Temperature
MH  - Terpenes/metabolism
MH  - Vitis/*physiology/radiation effects
PMC - PMC3833286
EDAT- 2013/11/08 06:00
MHDA- 2014/08/13 06:00
PMCR- 2013/11/06
CRDT- 2013/11/08 06:00
PHST- 2013/06/27 00:00 [received]
PHST- 2013/10/22 00:00 [accepted]
PHST- 2013/11/08 06:00 [entrez]
PHST- 2013/11/08 06:00 [pubmed]
PHST- 2014/08/13 06:00 [medline]
PHST- 2013/11/06 00:00 [pmc-release]
AID - 1471-2229-13-175 [pii]
AID - 10.1186/1471-2229-13-175 [doi]
PST - epublish
SO  - BMC Plant Biol. 2013 Nov 6;13:175. doi: 10.1186/1471-2229-13-175.