Wine is an alcoholic beverage made from fermentation of grape juice. The natural chemical balance of grapes is such that they can ferment without the addition of sugars, acids, enzymes, or other nutrients. Although fruits other than grapes can also be fermented, the resultant wines are normally named after the fruit from which they are produced (for example, apple wine) and are known as fruit wine (or country wine). Others, such as barley wine and rice wine (e.g. sake), are made from starch-based materials and resemble beer more than wine; ginger wine is fortified with brandy. In these cases, the use of the term "wine" is a reference to the higher alcohol content, rather than the production process. The commercial use of the word "wine" (and its equivalent in other languages) is protected by law in many jurisdictions. Wine is produced by fermenting crushed grapes using various types of yeast which consume the sugars found in the grapes and convert them into alcohol. Various varieties of grapes and strains of yeasts are used depending on the types of wine produced.
Wine stems from an extended and rich history dating back about 8,000 years and is thought to have originated in present-day Georgia or Iran. Wine is thought to have appeared in Europe about 6,500 years ago in present-day Bulgaria and Greece and was very common in ancient Greece and Rome; the Greek god Dionysos, and his Roman counterpart Liber represented wine. Wine continues to play a role in religious ceremonies, such as Kiddush in Judaism and the Eucharist in Christianity.
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Yeasts are eukaryotic microorganisms classified in the kingdom Fungi, with about 1,500 species currently described; they dominate fungal diversity in the oceans. Most reproduce asexually by budding, although a few do so by binary fission. Yeasts are unicellular, although some species with yeast forms may become multicellular through the formation of a string of connected budding cells known as pseudohyphae, or false hyphae as seen in most molds. Yeast size can vary greatly depending on the species, typically measuring 3–4 µm in diameter, although some yeasts can reach over 40 µm.
The yeast species Saccharomyces cerevisiae has been used in baking and fermenting alcoholic beverages for thousands of years. It is also extremely important as a model organism in modern cell biology research, and is the most thoroughly researched eukaryotic microorganism. Researchers have used it to gather information into the biology of the eukaryotic cell and ultimately human biology. Other species of yeast, such as Candida albicans, are opportunistic pathogens and can cause infection in humans. Yeasts have recently been used to generate electricity in microbial fuel cells, and produce ethanol for the biofuel industry.
Yeasts do not form a specific taxonomic or phylogenetic grouping. At present it is estimated that only 1% of all yeast species have been described. The term "yeast" is often taken as a synonym for S. cerevisiae, but the phylogenetic diversity of yeasts is shown by their placement in both divisions Ascomycota and Basidiomycota. The budding yeasts ("true yeasts") are classified in the order Saccharomycetales.
|Pierre Brejoux was Inspector General of the Appellation d'Origine Controlee Board, which controls the production of top French wines. he served as an expert wine taster in the Paris Wine Tasting of 1976. In the blind tasting, California wines won both the red and white wine categories. After the tasting, there were many calls for him to resign his position as Inspector General because so many people and groups were highly displeased with the results. He is also the author of several books on French wine.
is a winery in the Rheingau wine
-growing region in Germany
, that has been making wine
for over 900 years. A mountain on the north bank of the River Rhine
has been associated with the Church and with winemaking since the Dark Ages, when Ludwig der Fromme ("Louis the Pious
") made 6000 litres of wine during the reign of Charlemagne
. In 1100, Benedictine
monks completed a monastery on the Bischofsberg ("Bishop's") mountain, having identified the site as one of the best places to grow vines. 30 years later they built a Romanesque basilica in honour of John the Baptist
, and the hill became known as Johannisberg (John's mountain). It was constructed according to similar floor plans as its mother house, St. Alban's Abbey, Mainz
. As such the monastery was a prime target for the Anabaptists
in the Peasants' War
of 1525, and it was destroyed.
is a green-skinned grape
variety which originates from the Bordeaux
region of France
. The grape gets it name from the French word sauvage
("wild") and blanc
("white") due to its early origins as an indigenous grape in western France. It is now planted in many of the world's wine regions
, producing a crisp, dry, and refreshing white varietal wine
. Conversely, the grape is also a component of the famous dessert wines
. Sauvignon blanc is widely cultivated in France
, New Zealand
, and South America
Depending on climate, the flavor can range from aggressively grassy to sweetly tropical. Wine experts have used the phrase "crisp, elegant, and fresh" as a favorable description of Sauvignon blanc from the Loire Valley and New Zealand.Sauvignon blanc, when slightly chilled, pairs well with fish or cheese, particularly Chèvre. It is also known as one of the few wines that can pair well with sushi.
Along with Riesling, Sauvignon blanc was one of the first fine wines to be bottled with a screwcap in commercial quantities, especially by New Zealand producers. The wine is usually consumed young, as it does not particularly benefit from aging. Dry and sweet white Bordeaux, typically made with Sauvignon blanc as a major component, is the one exception.
||I have often wondered what the vintners buy, one half so precious as the goods they sell
||— Omar Khayyam
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