CHANGES IN TEXTURE ANALYSIS PARAMETERS OF WINE GRAPE BERRIES AT TWO RIPENESS STAGES: A STUDY ON VARIETAL EFFECT

Main Article Content

L. Brillante
F. Gaiotti
L. Lovat
S. Giacosa
S. RÍO SEGADE
S. Vincenzi
F. Torchio
L. Rolle http://orcid.org/0000-0002-6075-079X
D. Tomasi

Keywords

Berry ripening, physical-mechanical properties, texture analysis, skin weight, wine grapes, Vitis vinifera L.

Abstract

Ripening of grapes is associated with great modifications at both the chemical and physical level. The aim of this work was to describe the changes in physical-mechanical parameters associated to ripening of wine grape berries, as evaluated by texture analysis, in order to understand if these modifications are stable across cultivars, or they are cultivar-specific. Berries from 21 different cultivars were sorted by flotation in different saline solutions, separated in two ripening stages differentiated by the amount of sugars (183 and 217 g L-1) and then analysed. Multivariate and univariate variations in texture analysis parameters were found, which were not constant across the studied grapevine varieties. However, a general behaviour was observed for skin weight, which had the largest variation between the two ripening stages. Other parameters showed significant differences between the ripening stages: skin thickness, berry gumminess, chewiness, and springiness, but the variation was not common to all cultivars. The work therefore evidenced the existence of cultivar-specific differences in the behaviour of physical-mechanical parameters between ripening stages. 

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References

Battista F., Tomasi D., Porro D., Caicci F., Giacosa S. and Rolle L. 2015. Winegrape berry skin thickness determination: comparison between histological observation and texture analysis determination. Ital. J. Food Sci. 27:136-141.

Bindon K.A., Bacic A. and Kennedy J.A. 2012. Tissue-specific and developmental modifications of grape cell walls influence the adsorption of proanthocyanidins. J. Agric. Food Chem. 60:9249–9260.

Brillante L., Gaiotti F., Lovat L., Vincenzi S., Giacosa S., Torchio F., Río Segade S., Rolle L. and Tomasi D. 2015a. Investigating the use of gradient boosting machine, random forest and their ensemble to predict skin flavonoid content from berry physical-mechanical characteristics in wine grapes. Comput. Electron. Agr. 117: 186-193.

Brillante L.; Tomasi D., Gaiotti F., Giacosa S., Torchio F., Río Segade S., Siret R., Zouid I. and Rolle L. 2015b. Relationships between skin flavonoid content and berry physical-mechanical properties in four red wine grape cultivars (Vitis vinifera L.). Sci. Hort. 197: 272-279.

Conde C., Silva P., Fontes N., Dias A.C.P., Tavares R.M., Sousa M.J., Agasse A., Delrot S. and Gerós H. 2007. Biochemical changes throughout grape berry development and fruit and wine quality. Food. 1, 1–22. Global Science Books Ltd, UK.

Coombe B.G. 1992. Research on development and ripening of the grape berry. Am. J. Enol. Vitic. 43: 101–110.

Deytieux-Belleau C., Vallet A., Donèche B. and Geny L. 2008. Pectin methylesterase and polygalacturonase in the developing grape skin. Plant Physiol. Biochem. 46: 638–646.

Goulao L.F. and Oliveira C.M. 2008. Cell wall modifications during fruit ripening: When a fruit is not the fruit. Trends Food Sci. Technol. 19: 4–25.

Hernández-Hierro J.M., Quijada-Morín N., Martínez-Lapuente L., Guadalupe Z., Ayestarán B., Rivas-Gonzalo J.C. and Escribano-Bailón M.T. 2014. Relationship between skin cell wall composition and anthocyanin extractability of Vitis vinifera L. cv. Tempranillo at different grape ripeness degree. Food Chem. 146: 41–47.

Letaief H., Rolle L. and Gerbi V. 2008. Mechanical behavior of wine grapes under compression tests. Am. J. Enol. Vitic. 59: 323–329.

Maury C., Madieta E., Le Moigne M., Mehinagic E., Siret R. and Jourjon F. 2009. Development of a mechanical texture test to evaluate the ripening process of Cabernet Franc grapes. J. Texture Stud. 40: 511–535.

McLeod A.I. and Xu C. 2014. bestglm: best subset GLM. R package version 0.34. Available at: http://CRAN.R-project.org/package=bestglm

Nunan K.J. Changes in cell wall composition during ripening of grape berries. 1998. Plant Physiol. 118: 783–792.

Nunan K.J., Davies C., Robinson S.P. and Fincher G.B. 2001. Expression patterns of cell wall-modifying enzymes during grape berry development. Planta. 214: 257–264.

Ortega-Regules A., Romero-Cascales I., Ros-García J.M., López-Roca J.M. and Gómez-Plaza E. 2006. A first approach towards the relationship between grape skin cell-wall composition and anthocyanin extractability. Anal. Chim. Acta. 563: 26–32.

Ortega-Regules A,; Ros-García J.M., Bautista-Ortín A.B., López-Roca J.M. and Gómez-Plaza, E. 2008. Differences in morphology and composition of skin and pulp cell walls from grapes (Vitis vinifera L.): technological implications. Eur. Food Res. Technol. 227: 223–231.
R Core Team. 2015. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. Available at: http://www.R-project.org/.

Río Segade S., Rolle L., Gerbi V. and Orriols I. 2008. Phenolic ripeness assessment of grape skin by texture analysis. J. Food Comp. Anal. 21:644-649.

Río Segade S., Soto Vázquez E., Orriols I., Giacosa S. and Rolle L. 2011a. Possible use of texture characteristics of winegrapes as markers for zoning and their relationship with anthocyanin extractability index. Int. J. Food Sci. Tech. 46: 386–394.

Río Segade S.; Giacosa S.; Gerbi V. and Rolle L. 2011b. Berry skin thickness as main texture parameter to predict anthocyanin extractability in winegrapes. LWT-Food Sci. Technol. 44: 392–398.

Río Segade S., Orriols I.; Giacosa S. and Rolle L. 2011c. Instrumental texture analysis parameters as winegrapes varietal markers and ripeness predictors. Int. J. Food Prop. 14: 1318–1329.

Rolle L., Torchio F., Zeppa G. and Gerbi V. 2008. Anthocyanin extractability assessment of grape skins by texture analysis. J. Int. Sci. Vigne Vin, 42(3): 157-162.

Rolle L., Río Segade S., Torchio F., Giacosa S., Cagnasso E., Marengo F. and Gerbi V. 2011. Influence of grape density and harvest date on changes in phenolic composition, phenol extractability indices, and instrumental texture properties during ripening. J. Agric. Food Chem. 59: 8796–8805.

Rolle L., Siret R., Río Segade S., Maury C., Gerbi V. and Jourjon F. 2012. Instrumental texture analysis parameters as markers of table-grapes and winegrape quality: a review. Am. J. Enol. Vitic. 63: 11-28.

Santini D., Rolle L., Cascio P. and Mannini F. 2011. Modifications in chemical, physical and mechanical properties of Nebbiolo (Vitis vinifera L.) grape berries induced by mixed virus infection. S. Afr. J. Enol. Vitic. 32: 183-189.

Todorov V. and Filzmoser P. 2009. An object-oriented framework for robust multivariate analysis. J. Stat. Softw. 32(3): 1-47.

Vicens A., Fournand D., Williams P., Sidhoum L., Moutounet M. and Doco T. 2009. Changes in polysaccharide and protein composition of cell walls in grape berry skin (Cv. Shiraz) during ripening and over-ripening. J. Agric. Food Chem. 57: 2955–2960.

Zouid I., Siret R., Mehinagic E., Maury C., Chevalier M. and Jourjon F. 2010. Evolution of grape berries during ripening: Investigations into the links between their mechanical properties and the extractability of their skin anthocyanins. J. Int. Sci. Vigne Vin. 44: 87–99.

Zouid I., Siret R., Jourjon F., Mehinagic E. and Rolle L. 2013. Impact of grapes heterogeneity according to sugar level on both physical and mechanical berries properties and their anthocyanins extractability at harvest. J. Texture Stud. 44: 95–103.