Grape Riesling

Apple ( Golden Delicious, peel) Grape ( Riesling )... 

Comparing sun-exposed with shaded grape bunches in South African Riesling during the ripening period [45], sun-exposed grapes had up to 3 times more acid-releasable TDN than shaded bunches in the same vineyard. In the wines made from sun-exposed and shaded grapes, sun exposure induced a 50% increase in TDN. 

From the wine aromas of Pollux, Castor, and Riesling grapes, Rapp et al. and Schreier and Paroschy have isolated an undesirable strawberry aroma by GC-MS (80V13, 81MI112). This lactone was characterized as 2,5-dimethyl-4-hydroxy-2,3-dihydro-3-furanone 8 ("furaneol") having an odor threshold of 50-100 ppb. 

Grape variety Furmint, Furmint, Furmint, Riesling, Riesling, Riesling, Riesling, Furmint... 

The North Coast area represents 20 percent of California s total wine-grape acreage. Its plantings of Chardonnay, Sauvignon blanc, White Riesling, and Gewurztraminer represent a substantial portion of the state crop of these white varieties (Table IV). 

The variety and condition of grapes affect rate of pressing, measured in tons per hour. Grapes that tend to retain juice more easily in their cellular structure are more difficult to press efficiently and are called slippery grapes. White Riesling, Sylvaner, and Muscat blanc cultivars are among the slowest and most difficult North Coast whites to press. 

The remnants of a very old, dry-farmed V. vinifera vineyard near Union Gap, in the Yakima Valley, still exist. It is reported to have been planted in the 1880s. The first documented planting of V. vinifera grapes in the Yakima Valley were planted in 1930 by W. P. Bridgeman. The first V. vinifera wines produced were made by Mr. Bridgeman at the Upland Winery in Sunnyside in 1936. A White Riesling wine was produced for several years before being discontinued. 

Mature Grapes and During the Maturation of White Riesling, Am. J. Enol. Vitic. 1978, 29, 277-281. 

Murphey, J.M., Spayd, S.E., Rowers, J.R. (1989). Effect of grape maturation on soluble protein characteristics of Gewiitziraminer and White Riesling juice and wine. Am. J. Enol. Vitic., 40, 199-207... 

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