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Studies on the Reaction of Wine Flavonoids with Exogenous Acetaldehyde

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자료유형	E-Book
개인저자	Sheridan, Marlena K.
단체저자명	The Pennsylvania State University. Food Science.
서명/저자사항	Studies on the Reaction of Wine Flavonoids with Exogenous Acetaldehyde.
발행사항	[S.l.] : The Pennsylvania State University., 2016
발행사항	Ann Arbor : ProQuest Dissertations & Theses, 2016
형태사항	164 p.
소장본 주기	School code: 0176.
ISBN	9780438135789
일반주기	Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
요약	Red wine quality is known to improve with oxidation, typically as a result of exposure to oxygen. These benefits are based on the reaction of acetaldehyde with flavonoids in red wine. Acetaldehyde forms ethylidene bridges between flavonoids resu
요약	As a replacement for oxygenation techniques, I investigated the use of exogenous acetaldehyde additions to improve the color stability and mouthfeel of red wine. I first determined the viability of exogenous acetaldehyde treatment of a red wine
요약	In order to understand the role of wine components in the reaction of acetaldehyde with wine flavonoids, I assessed the effect of pH, dissolved oxygen, and sulfur dioxide (SO2) in model wine solutions. The rate of reaction of acetaldehyde with c
요약	Based on the efficacy of acetaldehyde in a system with an equimolar concentration of bisulfite in the previous study, I then explored the reactivity of aldehydes from bisulfite adducts. I synthesized alpha-hydroxyalkylsulfonates from bisulfite a
요약	In order to confirm the application of exogenous acetaldehyde in red wine production, I investigated the treatment of red wine with exogenous acetaldehyde, the acetaldehyde-bisulfite adduct, and oxygenation after alcoholic fermentation. A reason
요약	Overall, I demonstrated that exogenous acetaldehyde treatment is a viable alternative to oxygenation for improving the color stability of red wines. At low concentrations (22 mg/L), winemakers could use acetaldehyde to significantly improve colo
일반주제명	Food science. Chemistry.
언어	영어
기본자료 저록	Dissertation Abstracts International79-12B(E). Dissertation Abstract International
대출바로가기	http://www.riss.kr/pdu/ddodLink.do?id=T15000718