Tags

Type your tag names separated by a space and hit enter

Mechanical properties, phenolic composition and extractability indices of Barbera grapes of different soluble solids contents from several growing areas.
Anal Chim Acta. 2010 Feb 15; 660(1-2):183-9.AC

Abstract

Phenolic compounds, extractable from grape skins and seeds, have a notable influence on the quality of red wines. Many studies have clearly demonstrated the relationship between the phenolic composition of the grape at harvest time and its influence on the phenolic composition of the red wine produced. In many previous works the evolution of phenolic composition and relative extractability was normally studied on grapes sampled at different times during ripening, but at the same date the physiological characteristics of grape berries in a vineyard are often very heterogeneous. Therefore, the main goal of the study is to investigate the differences among mechanical properties, phenolic composition and relative extractability of Vitis vinifera L. cv Barbera grape berries, harvested at the same date from several vineyards, and calibrated according to their density at three levels of soluble solids (A=235+/-8, B=252+/-8 and C=269+/-8 g L(-1) sugar) with the aim of studying the influence of ripeness stages and growing locations on these parameters. Results on mechanical properties showed that the thickness of the berry skin (Sp(sk)) was the parameter most affected by the different level of sugars in the pulp, while different skin hardnesses, evaluated by the break skin force (F(sk)), were related to the cultivation sites. The latter were also observed to influence the mechanical characteristics of seeds. Generally, the anthocyanin content increased with the level of soluble solids, while the increase in the tannin content of the berry skin and seeds was less marked. However, significant changes in flavanols reactive to vanillin in the seeds were found. The cellular maturity index (EA%) was little influenced by the soluble solids content of grapes.

Authors+Show Affiliations

DIVAPRA, Settore Tecnologie Alimentari, Università degli Studi di Torino, Via L. da Vinci 44, 10095 Grugliasco, Torino, Italy.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20103161

Citation

Torchio, Fabrizio, et al. "Mechanical Properties, Phenolic Composition and Extractability Indices of Barbera Grapes of Different Soluble Solids Contents From Several Growing Areas." Analytica Chimica Acta, vol. 660, no. 1-2, 2010, pp. 183-9.
Torchio F, Cagnasso E, Gerbi V, et al. Mechanical properties, phenolic composition and extractability indices of Barbera grapes of different soluble solids contents from several growing areas. Anal Chim Acta. 2010;660(1-2):183-9.
Torchio, F., Cagnasso, E., Gerbi, V., & Rolle, L. (2010). Mechanical properties, phenolic composition and extractability indices of Barbera grapes of different soluble solids contents from several growing areas. Analytica Chimica Acta, 660(1-2), 183-9. https://doi.org/10.1016/j.aca.2009.10.017
Torchio F, et al. Mechanical Properties, Phenolic Composition and Extractability Indices of Barbera Grapes of Different Soluble Solids Contents From Several Growing Areas. Anal Chim Acta. 2010 Feb 15;660(1-2):183-9. PubMed PMID: 20103161.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Mechanical properties, phenolic composition and extractability indices of Barbera grapes of different soluble solids contents from several growing areas. AU - Torchio,Fabrizio, AU - Cagnasso,Enzo, AU - Gerbi,Vincenzo, AU - Rolle,Luca, Y1 - 2009/10/17/ PY - 2009/07/24/received PY - 2009/10/09/revised PY - 2009/10/10/accepted PY - 2010/1/28/entrez PY - 2010/1/28/pubmed PY - 2010/3/31/medline SP - 183 EP - 9 JF - Analytica chimica acta JO - Anal Chim Acta VL - 660 IS - 1-2 N2 - Phenolic compounds, extractable from grape skins and seeds, have a notable influence on the quality of red wines. Many studies have clearly demonstrated the relationship between the phenolic composition of the grape at harvest time and its influence on the phenolic composition of the red wine produced. In many previous works the evolution of phenolic composition and relative extractability was normally studied on grapes sampled at different times during ripening, but at the same date the physiological characteristics of grape berries in a vineyard are often very heterogeneous. Therefore, the main goal of the study is to investigate the differences among mechanical properties, phenolic composition and relative extractability of Vitis vinifera L. cv Barbera grape berries, harvested at the same date from several vineyards, and calibrated according to their density at three levels of soluble solids (A=235+/-8, B=252+/-8 and C=269+/-8 g L(-1) sugar) with the aim of studying the influence of ripeness stages and growing locations on these parameters. Results on mechanical properties showed that the thickness of the berry skin (Sp(sk)) was the parameter most affected by the different level of sugars in the pulp, while different skin hardnesses, evaluated by the break skin force (F(sk)), were related to the cultivation sites. The latter were also observed to influence the mechanical characteristics of seeds. Generally, the anthocyanin content increased with the level of soluble solids, while the increase in the tannin content of the berry skin and seeds was less marked. However, significant changes in flavanols reactive to vanillin in the seeds were found. The cellular maturity index (EA%) was little influenced by the soluble solids content of grapes. SN - 1873-4324 UR - https://www.unboundmedicine.com/medline/citation/20103161/Mechanical_properties_phenolic_composition_and_extractability_indices_of_Barbera_grapes_of_different_soluble_solids_contents_from_several_growing_areas_ DB - PRIME DP - Unbound Medicine ER -