General analysis of Koshu-Nuveau wines produced in Yamanashi prefecture [Japan] in 1996
1997
Yamakawa, Y. (Yamanashi Univ., Kofu (Japan). Faculty of Engineering)
Thirty-four bottles of Koshu-nouveau wines produced in 1996 by various wineries located in Yamanashi prefecture, Japan, were analyzed to determine the general constituents of the wines. The average alcohol content of the wines was 11.4 vol.&. The five wines of the 1996 vintage had an alcohol content of less than 10 vol.%. The average extract in the wines was 5.57 become lower. The average pH and total acidity were influenced by the meteorological conditions during the growing seasons and harvest time. The average total SO2 content in the wines was 96 mg/l. However, there were some wines with no added SO2 in the 1996 vintage. Bottles were also examined with respect to type and color. The various winters used mainly colorless or emerald-green Bordeaux-type bottles with a cork stopper. Five bottles in the 1006 vintage came in a 500 ml size
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