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Published on: February 7, 2017
Aging acceleration of balsamic vinegar applying micro-oxygenation technique
V Andreou1, M Giannoglou1, M Z Xanthou1
1Institute of Technology of Agricultural Products, Hellenic Agricultural Organization-DEMETER, Sofokli Venizelou 1, str., GR14123, Greece.
Abstract:
The effect of micro-oxygenation (MOX) technique on quality and sensorial characteristics of balsamic vinegar was investigated, aiming to aging acceleration. Aging experiments were conducted using a multiple diffuser micro-oxygenator for up to 6 months with an oxygen flow of 30 mg/L/month, including oak chips (1 g/L) or not. Barrel maturation was simultaneously carried out. Quality, nutritional, sensorial characteristics and the aromatic profile of all aged vinegars were evaluated throughout aging. MOX accelerated the alteration of aging indices. Volatile compounds of fruity aroma and wine were decreased, while the fatty/buttery and caramel aroma compounds were increased. Similar compounds of 1.5-year barrel maturation were developed within 6 and 5 months applying MOX without or with oak chips, respectively. MOX resulted in reduction of the aging time to 1/3 compared to the corresponding one in barrels, considered as an attractive approach for vinegar-producing industries, mimicking and accelerating the long and costly barrel aging.
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