Clarification and stabilization of wine

In winemaking, clarification and stabilization are the processes by which insoluble matter suspended in the wine is removed before bottling. This matter may include dead yeast cells (lees), bacteria, tartrates, proteins, pectins, various tannins and other phenolic compounds, as well as pieces of grape skin, pulp, stems and gums. Clarification and stabilization may involve fining, filtration, centrifugation, flotation, refrigeration, pasteurization, and/or barrel maturation and racking.

Clarifying wine

In wine tasting, a wine is considered "clear" when there are no visible particles suspended in the liquid and, especially in the case of white wines, when there is some degree of transparency. A wine with too much suspended matter will appear cloudy and dull, even if its aroma and flavor are unaffected; wines therefore generally undergo some kind of clarification.

Before fermentation, pectin-splitting enzymes and, for white wine, fining agents such as bentonite may be added to the must in order to promote the agglomeration and settling of colloids later. Pectins are structural molecules in the cell walls of fruits which have the important function of 'gumming' plant cells together. The pectin content of grapes increases steadily throughout ripening, reaching levels of about 1 g/l, although it varies by varietal and pre-fermentation handling processes. Large pectin molecules can affect the amount of juice yielded at pressing, ease of filtration and clarification, and extraction of tannins. Grapes contain natural pectolytic enzymes responsible for softening the grape berries during ripening, but these are not active under wine-making conditions (due to pH level, SO₂, and alcohol.) Therefore, fungal pectolytic enzymes are often added to white must to break up pectins, decrease the viscosity of the juice, and speed up settling. In red musts, this increases color and tannin extraction.

Wine

Wine (from Latin vinum) is an alcoholic beverage made from fermented grapes or other fruits. Due to a natural chemical balance, grapes ferment without the addition of sugars, acids, enzymes, water, or other nutrients.Yeast consumes the sugar in the grapes and converts it to ethanol and carbon dioxide. Different varieties of grapes and strains of yeasts produce different styles of wine. These variations result from the complex interactions between the biochemical development of the grape, the reactions involved in fermentation, the terroir (the special characteristics imparted by geography, geology, climate and plant genetics) and subsequent appellation (the legally defined and protected geographical indication used to identify where the grapes for a wine were grown), along with human intervention in the overall process.

Wine has been produced for thousands of years. The earliest evidence of wine to date was found in the country of Georgia, where 8000-year old wine jars were uncovered. Traces of wine have also been found in Iran with 7,000-year-old wine jars and in Armenia with the 6100-year old Areni-1 winery, which is considered to be the earliest known winery by far. The earliest form of grape-based fermented drink however, was found in northern China, where archaeologists discovered 9000-year old pottery jars. Wine had reached the Balkans by c. 4500 BC and was consumed and celebrated in ancient Greece, Thrace and Rome. Throughout history, wine has been consumed for its intoxicating effects, which are evident at normal serving sizes.

Wine (bishop)

Wine (or Wini; died before 672) was a medieval Bishop of London and the first Bishop of Winchester.

Wine was consecrated the first bishop of Winchester in 660 and possibly translated to Dorchester around 663. In 666, he was translated from Dorchester to London.

Bede tells us that Wine was ordained bishop in the Frankish kingdom and that King Cenwalh of Wessex installed him after disagreements with the previous Frankish bishop, Agilbert. Wine too was forced to leave after a few years and took refuge with Wulfhere, king of Mercia, who installed him in London, after a payment to Wulfhere.

In 665, while in Wessex, Wine took part with two Welsh or British bishops in the ordination of Chad as bishop of the Northumbrians, an act that was uncanonical because the other two bishops' ordination was not recognised by Rome. This would have resulted in his being disciplined, along with Chad, by Theodore of Tarsus, the new archbishop of Canterbury, who arrived in 669. Since Bede does not list him among the miscreants at this point, it is possible he had died by this date.

Wine (1924 film)

Wine was a 1924 American silent melodrama directed by Louis J. Gasnier, produced and released by Universal Pictures under their 'Jewel' banner. The film featured Clara Bow in her first starring role. The film is now presumed lost.

Synopsis

Set during the Prohibition Era, Wine exposes the widespread liquor traffic in the upper-classes. Bow portrays an innocent girl who develops into a "wild redhot mama".

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