IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Flavor Enhancement Of Neutral White Wines By Mango Peel Products

Flavor Enhancement Of Neutral White Wines By Mango Peel Products

Abstract

Varietal flavor is commonly known as the aromatic character of a wine in which the aroma of a particular grape variety predominates. However, not all varieties present particularly pronounced aromas. Therefore, different methods are constantly sought to enhance the aroma of wines with neutral aromatic characteristics, such as the use of glycosidases (1), certain yeast strains (2) or maceration with different agricultural products. In this work, aiming to improve the sensory profile together with the diversification of this product, white wines, derived from a neutral grape variety, were elaborated with the addition of mango peel by-products. This by-product was chosen because of its greatly esteemed tropical scents (3). Three different samples were performed regarding the mango peels application: 7 days co-fermentation (MCF), 7 days maceration post-fermentation (MPF) and no mango peel added, considered as control (C). A comprehensive analysis of the volatile profile, both qualitative and quantitative, was carried out by SPE extraction followed by GC-MS. Wines were also tasted by a panel of experts in order to evaluate the sensory attributes. Conventional analsysis including color parameters were also executed. Preliminary results have shown that MCF and PCF, exhibited an overall terpene compounds increase in which significant amounts of characteristic mango volatile compounds such as 3-carene or p-cymene were found, which evoque floral-resinous aromatic scents. On the other hand, less appreciated compounds such as 1-octen-3-ol (musty odour) were also found in larger quantities in both samples treated with mango peels.  The sensory analysis outcomes showed that, while some unattractive volatiles compounds were identified in the samples treated with mango peels, those were not found in any case during the tasting evaluation. In addition, judges detected exclusive attributes in MCF and PCF samples, defined as compote and apricot notes. Furthermore, these exclusive desirable attributes remained much longer in the mouth in the sample of wines that had undergone post-fermentation maceration (PCF).In conclusion, together with the rest of data analysed, a 7-day post-fermentation maceration with dried mango skins is proposed as a natural cheap and simple aromatisation method for white wines.

References

(1) Vázquez, L. C., Pérez-Coello, M. S., & Cabezudo, M. D. (2002). Effects of enzyme treatment and skin extraction on varietal volatiles in Spanish wines made from Chardonnay, Muscat, Airén, and Macabeo grapes. Analytica Chimica Acta, 458(1), 39-44.
(2) Sabel, A., Martens, S., Petri, A., König, H., & Claus, H. (2014). Wickerhamomyces anomalus AS1: a new strain with potential to improve wine aroma. Annals of Microbiology, 64(2), 483-491.
(3) Pino, J. A., & Mesa, J. (2006). Contribution of volatile compounds to mango (Mangifera indica L.) aroma. Flavour and fragrance journal, 21(2), 207-213.

DOI:

Publication date: June 27, 2022

Issue: IVAS 2022

Type: Poster

Authors

Oliver-Simancas Rodrigo1, Labrador-Fernández L.1,  Díaz-Maroto M. C.1, Pérez-Coello1 and Alañón-Pardo1

1Area of Food Technology, Faculty of Chemical Sciences and Technologies, Regional Institute for Applied Scientific Research (IRICA)

Contact the author

Keywords

Wine styles, Neutral wines, Maceration, Diversification, Agricultural peels.

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Development of a new method to understand headspace aroma distribution and explore the pre-sensory level in perceptive interactions involved in red wine fruity aroma expression

A part, at least, of red wines fruity expression may be explained by perceptive interactions involving particularly various substituted ethyl esters and acetates present at concentration far below their olfactory threshold, specifically thanks to synergistic effects. Wine sensory perception is directly linked to the stimulation of the taster at the level of olfactory epithelium by volatiles. These compounds are liberated from the matrix to the atmosphere, and will then be smelt. From a physico-chemical point of view, these volatiles ability to be released may be evaluated by their partition coefficients, which correspond to the volatile concentration ratio between the liquid and gas phase. Our goal is, through these coefficients determination, to assess if volatile matrix composition is able to impact the volatility of some compounds, and then explain sensory perception, i.eto evaluate what is called the pre-sensorial level impact.

Climate regionalization of Uruguayan viticulture for ecological sustainability

Ecological sustainability refers to developing viticulture in adequate environmental conditions.

Chemical systems behind wine aroma perception: overview, genesis and evolution

This talk presents a revision of our knowledge and understanding of the role played by the different aroma chemicals in the positive aroma attributes of wine. A systematic approach to classifying the different aroma chemicals of wine is presented .

Gambellara zoning: climate and soil effect on the aromatic fresh and dried grape composition and wine aroma

La région de production de la Gambellara et Recioto di Gambellara DOC (variété Garganega), tout en n’intéressant qu’une surface limitée, présente une certaine variabilité de milieu due à la morphologie du territoire (colline et plaine), à l’état actuel des sols et aux variations climatiques entre les différents sites. Pour les années 2001, 2002

Comparison of imputation methods in long and varied phenological series. Application to the Conegliano dataset, including observations from 1964 over 400 grape varieties

A large varietal collection including over 1700 varieties was maintained in Conegliano, ITA, since the 1950s. Phenological data on a subset of 400 grape varieties including wine grapes, table grapes, and raisins were acquired at bud break, flowering, veraison, and ripening since 1964. Despite the efforts in maintaining and acquiring data over such an extensive collection, the data set has varying degrees of missing cases depending on the variety and the year. This is ubiquitous in phenology datasets with significant size and length. In this work, we evaluated four state-of-the-art methods to estimate missing values in this phenological series: k-Nearest Neighbour (kNN), Multivariate Imputation by Chained Equations (mice), MissForest, and Bidirectional Recurrent Imputation for Time Series (BRITS). For each phenological stage, we evaluated the performance of the methods in two ways. 1) On the full dataset, we randomly hold-out 10% of the true values for use as a test set and repeated the process 1000 times (Monte Carlo cross-validation). 2) On a reduced and almost complete subset of varieties, we varied the percentage of missing values from 10% to 70% by random deletion. In all cases, we evaluated the performance on the original values using normalized root mean squared error. For the full dataset we also obtained performance statistics by variety and by year. MissForest provided average errors of 17% (3 days) at budbreak, 14% (4 days) at flowering, 14.5% (7 days) at veraison, and 17% (3 days) at maturity. We completed the imputations of the Conegliano dataset, one of the world’s most extensive and varied phenological time series and a steppingstone for future climate change studies in grapes. The dataset is now ready for further analysis, and a rigorous evaluation of imputation errors is included.