Tags

Type your tag names separated by a space and hit enter

Phenolic composition of Malbec grape skins and seeds from Valle de Uco (Mendoza, Argentina) during ripening. Effect of cluster thinning.
J Agric Food Chem. 2011 Jun 08; 59(11):6120-36.JA

Abstract

The phenolic composition of Malbec (Vitis vinifera L.) grape skins and seeds during ripening and the effect of cluster thinning (CT) in two consecutive seasons (2008-2009) were evaluated by high-performance liquid chromatography-diode array detection/electrospray ionization-mass spectrometry (HPLC-DAD/ESI-MS). Removal of 50% of clusters was performed at 40 days (T1), 80 days (T2), and 100 days after flowering (T3) in a vineyard located in southern Mendoza (Argentina). Yield components, with the exception of cluster weight, were significantly affected by CT in both seasons, but no statistically significant differences were found among treatments. Cluster thinning and its timing had little or no influence on physical parameters and fruit chemical composition, and the differences with respect to the control were mainly due to the season. At harvest in 2008, T1 encouraged the biosynthesis of individual anthocyanins in skins, generating 44.0, 39.6, and 41.2% more glucosylated, acetylated, and total anthocyanins, respectively, as compared to the control, whereas in seeds, T1 and T2 mainly changed the concentrations of (+)-catechin, epicatechin-3-gallate, procyanidin B4, dimer gallate 1, trimer gallate 2, and tetramer. Conversely in 2009, T1 significantly affected the content of flavanols and flavonols in skins, whereas in seeds, T1 and T2 modified the level of (+)-catechin, procyanidins B4 and B6, and trimer gallate 2. Moreover, in 2008 the grapes had a higher concentration of most phenolic compounds, indicating a greater potential for more complex wines. Finally, dihydroquercetin-3-glucoside was the major compound among all nonanthocyanin phenolics detected in Malbec skins and represented 25.7% (2008) and 39.9% (2009) of the total content of those compounds at harvest. This finding could represent a distinctive feature of this grape variety.

Authors+Show Affiliations

Laboratorio de Aromas y Sustancias Naturales, Estación Experimental Agropecuaria Mendoza, Instituto Nacional de Tecnología Agropecuaria (INTA), San Martín 3853, 5507 Luján de Cuyo, Mendoza, Argentina. mfanzone@mendoza.inta.gov.arNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21520971

Citation

Fanzone, Martín, et al. "Phenolic Composition of Malbec Grape Skins and Seeds From Valle De Uco (Mendoza, Argentina) During Ripening. Effect of Cluster Thinning." Journal of Agricultural and Food Chemistry, vol. 59, no. 11, 2011, pp. 6120-36.
Fanzone M, Zamora F, Jofré V, et al. Phenolic composition of Malbec grape skins and seeds from Valle de Uco (Mendoza, Argentina) during ripening. Effect of cluster thinning. J Agric Food Chem. 2011;59(11):6120-36.
Fanzone, M., Zamora, F., Jofré, V., Assof, M., & Peña-Neira, Á. (2011). Phenolic composition of Malbec grape skins and seeds from Valle de Uco (Mendoza, Argentina) during ripening. Effect of cluster thinning. Journal of Agricultural and Food Chemistry, 59(11), 6120-36. https://doi.org/10.1021/jf200073k
Fanzone M, et al. Phenolic Composition of Malbec Grape Skins and Seeds From Valle De Uco (Mendoza, Argentina) During Ripening. Effect of Cluster Thinning. J Agric Food Chem. 2011 Jun 8;59(11):6120-36. PubMed PMID: 21520971.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phenolic composition of Malbec grape skins and seeds from Valle de Uco (Mendoza, Argentina) during ripening. Effect of cluster thinning. AU - Fanzone,Martín, AU - Zamora,Fernando, AU - Jofré,Viviana, AU - Assof,Mariela, AU - Peña-Neira,Álvaro, Y1 - 2011/05/06/ PY - 2011/4/28/entrez PY - 2011/4/28/pubmed PY - 2011/10/15/medline SP - 6120 EP - 36 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 59 IS - 11 N2 - The phenolic composition of Malbec (Vitis vinifera L.) grape skins and seeds during ripening and the effect of cluster thinning (CT) in two consecutive seasons (2008-2009) were evaluated by high-performance liquid chromatography-diode array detection/electrospray ionization-mass spectrometry (HPLC-DAD/ESI-MS). Removal of 50% of clusters was performed at 40 days (T1), 80 days (T2), and 100 days after flowering (T3) in a vineyard located in southern Mendoza (Argentina). Yield components, with the exception of cluster weight, were significantly affected by CT in both seasons, but no statistically significant differences were found among treatments. Cluster thinning and its timing had little or no influence on physical parameters and fruit chemical composition, and the differences with respect to the control were mainly due to the season. At harvest in 2008, T1 encouraged the biosynthesis of individual anthocyanins in skins, generating 44.0, 39.6, and 41.2% more glucosylated, acetylated, and total anthocyanins, respectively, as compared to the control, whereas in seeds, T1 and T2 mainly changed the concentrations of (+)-catechin, epicatechin-3-gallate, procyanidin B4, dimer gallate 1, trimer gallate 2, and tetramer. Conversely in 2009, T1 significantly affected the content of flavanols and flavonols in skins, whereas in seeds, T1 and T2 modified the level of (+)-catechin, procyanidins B4 and B6, and trimer gallate 2. Moreover, in 2008 the grapes had a higher concentration of most phenolic compounds, indicating a greater potential for more complex wines. Finally, dihydroquercetin-3-glucoside was the major compound among all nonanthocyanin phenolics detected in Malbec skins and represented 25.7% (2008) and 39.9% (2009) of the total content of those compounds at harvest. This finding could represent a distinctive feature of this grape variety. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/21520971/Phenolic_composition_of_Malbec_grape_skins_and_seeds_from_Valle_de_Uco__Mendoza_Argentina__during_ripening__Effect_of_cluster_thinning_ L2 - https://doi.org/10.1021/jf200073k DB - PRIME DP - Unbound Medicine ER -
Try the Free App:
Prime PubMed app for iOS iPhone iPad
Prime PubMed app for Android
Prime PubMed is provided
free to individuals by:
Unbound Medicine.