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Influence of Berry Heterogeneity on Phenolics and Antioxidant Activity of Grapes and Wines: A Primary Study of the New Winegrape Cultivar Meili (Vitis vinifera L.).
PLoS One. 2016; 11(3):e0151276.Plos

Abstract

Wine grapes are usually harvested in vineyards when they ripen. However, not all of the berries in a vineyard ripen homogeneously because of different microclimates around the clusters and berries. In this study, the influence of berry heterogeneity on the phenolic content and antioxidant capacity of grapes and wines under a continental monsoon climate was evaluated for a new wine grape cultivar Meili (Vitis vinifera L.). The total phenolic, flavonoid, flavanol, and monomeric anthocyanin contents in the skin and wine significantly increased with grape density; however, there was no significant difference in the seeds between the two lower densities. The highest values of DPPH free radical-scavenging activity, cupric-reducing antioxidant capacity, and hydroxyl radical-scavenging activity in the skin, seed and wine were detected for the densest berries. The sum of individual phenolic compounds in skin, seed and wine increased with berry density, though no significant difference for skin was observed between the two higher density classes. Hence, the chemical components of Meili grapes and wines were positively associated with the berry density at harvest under the continental monsoon climate.

Authors+Show Affiliations

College of Enology, Northwest A&F University, Yangling, Shaanxi, China. Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, Shaanxi, China.College of Enology, Northwest A&F University, Yangling, Shaanxi, China.College of Enology, Northwest A&F University, Yangling, Shaanxi, China.Department of Horticulture, Sichuan Agricultural University, Yaan Sichuan, China.College of Enology, Northwest A&F University, Yangling, Shaanxi, China. Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, Shaanxi, China.

Pub Type(s)

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

Language

eng

PubMed ID

26974974

Citation

Liu, Xu, et al. "Influence of Berry Heterogeneity On Phenolics and Antioxidant Activity of Grapes and Wines: a Primary Study of the New Winegrape Cultivar Meili (Vitis Vinifera L.)." PloS One, vol. 11, no. 3, 2016, pp. e0151276.
Liu X, Li J, Tian Y, et al. Influence of Berry Heterogeneity on Phenolics and Antioxidant Activity of Grapes and Wines: A Primary Study of the New Winegrape Cultivar Meili (Vitis vinifera L.). PLoS One. 2016;11(3):e0151276.
Liu, X., Li, J., Tian, Y., Liao, M., & Zhang, Z. (2016). Influence of Berry Heterogeneity on Phenolics and Antioxidant Activity of Grapes and Wines: A Primary Study of the New Winegrape Cultivar Meili (Vitis vinifera L.). PloS One, 11(3), e0151276. https://doi.org/10.1371/journal.pone.0151276
Liu X, et al. Influence of Berry Heterogeneity On Phenolics and Antioxidant Activity of Grapes and Wines: a Primary Study of the New Winegrape Cultivar Meili (Vitis Vinifera L.). PLoS One. 2016;11(3):e0151276. PubMed PMID: 26974974.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of Berry Heterogeneity on Phenolics and Antioxidant Activity of Grapes and Wines: A Primary Study of the New Winegrape Cultivar Meili (Vitis vinifera L.). AU - Liu,Xu, AU - Li,Jinlu, AU - Tian,Yuping, AU - Liao,Mingan, AU - Zhang,Zhenwen, Y1 - 2016/03/14/ PY - 2015/09/10/received PY - 2016/02/25/accepted PY - 2016/3/15/entrez PY - 2016/3/15/pubmed PY - 2016/8/2/medline SP - e0151276 EP - e0151276 JF - PloS one JO - PLoS One VL - 11 IS - 3 N2 - Wine grapes are usually harvested in vineyards when they ripen. However, not all of the berries in a vineyard ripen homogeneously because of different microclimates around the clusters and berries. In this study, the influence of berry heterogeneity on the phenolic content and antioxidant capacity of grapes and wines under a continental monsoon climate was evaluated for a new wine grape cultivar Meili (Vitis vinifera L.). The total phenolic, flavonoid, flavanol, and monomeric anthocyanin contents in the skin and wine significantly increased with grape density; however, there was no significant difference in the seeds between the two lower densities. The highest values of DPPH free radical-scavenging activity, cupric-reducing antioxidant capacity, and hydroxyl radical-scavenging activity in the skin, seed and wine were detected for the densest berries. The sum of individual phenolic compounds in skin, seed and wine increased with berry density, though no significant difference for skin was observed between the two higher density classes. Hence, the chemical components of Meili grapes and wines were positively associated with the berry density at harvest under the continental monsoon climate. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/26974974/Influence_of_Berry_Heterogeneity_on_Phenolics_and_Antioxidant_Activity_of_Grapes_and_Wines:_A_Primary_Study_of_the_New_Winegrape_Cultivar_Meili__Vitis_vinifera_L___ L2 - https://dx.plos.org/10.1371/journal.pone.0151276 DB - PRIME DP - Unbound Medicine ER -