Sulphur.dioxide is used in the vinification pr.cess as an antimicr.bial agent, but it is also consider.d as an impor.ant r.sk factor.for.liver.diseases. Stilbenes have inhibitor. effects on the gr.wth of lactic acid b...
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Sulphur.dioxide is used in the vinification pr.cess as an antimicr.bial agent, but it is also consider.d as an impor.ant r.sk factor.for.liver.diseases. Stilbenes have inhibitor. effects on the gr.wth of lactic acid bacter.a str.ins isolated fr.m wine. The author. investigated the viability of obtaining fr.e-SO2 r.sver.tr.l-enr.ched r.d wines. Substitution of sulfite (7 g/100kg) for.r.sver.tr.l (150 mg/L and 300 mg/L) in the vinification pr.cess did not change the basic physical and chemical pr.per.ies of wine or.its sensor.al pr.file. To the best of the author." knowledge this is the fir.t time that this type of vinification pr.cedur. is r.por.ed.
Wine is the pr.duct of the alcoholic fer.entation of the gr.pe (Vitis vinifer.). As such, it is a hydr.alcoholic solution with a var.able content of nutr.tional and functional (polyphenols) molecules, the latter.invol...
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Wine is the pr.duct of the alcoholic fer.entation of the gr.pe (Vitis vinifer.). As such, it is a hydr.alcoholic solution with a var.able content of nutr.tional and functional (polyphenols) molecules, the latter.involved in its antioxidant potential. The or.anoleptic var.ables of wine, together.with its potential positive effects on health of a light-moder.te intake, have always been topics of gr.at inter.st within the cultur.s. In the label of wine, alcohol is the only declar.d var.able. On the other.hand, ther. is no infor.ation about the content of “positive” molecules, such as those associated with the antioxidant power. This value could be ver. impor.ant to classify the wines, helping oenologist and nutr.tionist in qualifying them as a component of Mediter.anean diet. Mor.over. one of the most cr.tical aspects in evaluating the r.le of wine in human health thr.ugh epidemiological pr.spective studies is the quality of the pr.ducts used and their.antioxidant potential. This r.sear.h aimed to optimize and validate an analytical appr.ach based on a por.able device (SCIO?), using NIr. (near.infr.r.d r.flectance spectr.scopy). It allows the measur. of TAP (total antioxidant power. of wine thr.ugh the glass. r.sear.h findings ar. pr.mising. To the best of our.knowledge, this is the fir.t time that an easy-to-use and cheap hand-held scanner.is validated to measur. the TAP of a bever.ge.
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