Although there are 40-60 known grape species, only three are relevant to human consumption: Vitis vinifera, the common table grape; Vitis labrusca, the concord or purple grape; and Viti rotundifolia, also known as the muscadine grape or scuppernong.
In
the United States, grapes are grown mainly in California, New York,
Pennsylvania, Michigan and Ohio. Washington, Missouri, and Arkansas also
produce same grapes.
California is the top grape
producer in the United States with total utilized grape production was
6,847 000 tons in 2015. Over half of it was processed into wine, 15%
was consumed fresh and 30% was dried into raisins.
Grape
production in California is classified by end use into three categories:
table grapes, raisin grapes and wine grapes. After harvest, grapes may
be consumed fresh, crushed or dehydrated. Fresh table grapes are
handled, stored, and marketed much like other fruits consumed fresh.
Crushed
grapes may be directly fermented into wine, pressed into juice that may
be fermented into wine, consumed fresh or concentrate for later use.
Dehydrated grapes or raisins are also a major product of the vine.
Grapes production in United States
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Epigallocatechin gallate (EGCG) is a potent antioxidant primarily found in
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