Carotenoid and chlorophyll-derived compounds in some wine grapes grown in Apulian region

Pasquale Crupi, Antonio Coletta, Rosa Anna Milella, Giuseppe Palmisano, Antonella Baiano, Ennio La Notte, Donato Antonacci

Research output: Contribution to journalArticle

Abstract

Carotenoid compounds in wine grapes (Chardonnay, Merlot, Primitivo, Negroamaro) grown in Apulian region were investigated by chromatographic and spectrometric analyses. Cis-isomers of lutein and β-carotene (9Z, 9'Z-lutein and 9Z-β-carotene) and 5,6-epoxyxanthophylls were detected: 9'Z-neoxanthin, violaxanthin, and 5,6-epoxylutein. Moreover, zeaxanthin was efficiently resolved from lutein by a selective factor > 1 (α = 1.06) and was found in high amounts (50 to 300 μg/kg) in the grape extracts analyzed in 3 y of study (2006 to 2008). At grape maturity, β-carotene had concentration approximately 2-to 4-fold higher than (all-E)-lutein in all varieties. Because carotenoids are potential precursors of aroma compounds, it was determined carotenoids change Δ C (μg/kg), from the difference of total carotenoids concentration between veraison and maturity. Chardonnay and Merlot had the highest Δ C values and principal component analysis showed that they were characterized by 5,6-epoxyxanthophylls derivatives and zeaxanthin, lutein, and β-carotene derivatives, respectively. An important effect of vintage on Δ C values in the analyzed grapes was also observed. A strong positive correlation was determined between Δ C and temperature data that seem to be responsible for the difference of Δ C in the Chardonnay and Merlot compared to the Primitivo and Negroamaro varieties.

Original languageEnglish
JournalJournal of Food Science
Volume75
Issue number4
DOIs
Publication statusPublished - May 2010

Keywords

  • 5,6-epoxyxanthophylls
  • Carotenoids
  • Pheophytins
  • Wine grapes
  • Zeaxanthin

ASJC Scopus subject areas

  • Food Science
  • Medicine(all)

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    Crupi, P., Coletta, A., Milella, R. A., Palmisano, G., Baiano, A., La Notte, E., & Antonacci, D. (2010). Carotenoid and chlorophyll-derived compounds in some wine grapes grown in Apulian region. Journal of Food Science, 75(4). https://doi.org/10.1111/j.1750-3841.2010.01564.x