RT Journal Article SR Electronic T1 Study on Egyptian Fresh and Aged Wines. I. pH, Acidity, Esters, and SO2 Content JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 205 OP 207 DO 10.5344/ajev.1979.30.3.205 VO 30 IS 3 A1 A. G. Sachde A1 M. E. El-Zalaki A1 A. M. El-Tabey A1 S. A. Abo-Donia YR 1979 UL http://www.ajevonline.org/content/30/3/205.abstract AB pH, titratable acidity, volatile acidity, nonvolatile acidity, esters, and sulfur dioxide content were determined in 10 brands of Egyptian wines of different ages. The brands represented three dry white wines, three semisweet white wines, and four dry red wines. The wines represented fresh, one-year-old, and two-year-old wines. The constituents investigated varied between the brands and within the same brand at different ages.