|
Amarone Della Valpolicella
Amarone della Valpolicella, usually known as Amarone (, ), is an Italian DOCG denomination of typically rich dry red wine made from the partially dried grapes of the Corvina (45–95%, of which up to 50% could be substituted with Corvinone), Rondinella (5–30%) and other approved red grape varieties (up to 25%). Valpolicella is in the province of Verona, within the large Veneto region. In Italian, the name ''Amarone'' literally means "Great Bitter"; originally, this was to distinguish it from the Recioto produced in the same region, which is sweeter in taste. History Notable wines have been produced in Valpolicella since ancient times, but the Verona wine was not marketed as Amarone before 1953. It is believed that the label Amarone was coined by Adelino Lucchese in 1936. The wine was assigned Denominazione di Origine Controllata (DOC) status in December 1990. On 4 December 2009, Amarone and Recioto della Valpolicella were promoted to the status of Denominazione di Origine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amarone BMK
Amarone della Valpolicella, usually known as Amarone (, ), is an Italian DOCG denomination of typically rich dry red wine made from the partially dried grapes of the Corvina (45–95%, of which up to 50% could be substituted with Corvinone), Rondinella (5–30%) and other approved red grape varieties (up to 25%). Valpolicella is in the province of Verona, within the large Veneto region. In Italian, the name ''Amarone'' literally means "Great Bitter"; originally, this was to distinguish it from the Recioto produced in the same region, which is sweeter in taste. History Notable wines have been produced in Valpolicella since ancient times, but the Verona wine was not marketed as Amarone before 1953. It is believed that the label Amarone was coined by Adelino Lucchese in 1936. The wine was assigned Denominazione di Origine Controllata (DOC) status in December 1990. On 4 December 2009, Amarone and Recioto della Valpolicella were promoted to the status of Denominazione di Origine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Straw Wine
Straw wine, or raisin wine, is a wine made from grapes that have been dried to concentrate their juice. The result is similar to that of the ice wine process, but is a much older process and suitable for warm climates. The technique dates back to pre-Classical times with wines becoming fashionable in Roman times and in late Medieval/Renaissance Europe when wines such as Malmsey ('Malvasia' originally from Greece) and Candia (from Crete) were highly sought after. Traditionally, most production of these wines has been in Greece, the islands of Sicily, Cyprus, Northern Italy and the French Alps. However, producers in other areas now use the method as well. Under the classic method, after a careful hand harvest, selected bunches of ripe grapes will be laid out on mats in full sun. (Originally the mats were made of straw, but these days the plastic nets for the olive harvest are likely to be used). This drying will probably be done on well exposed terraces somewhere near the wine pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volatile Acidity
A wine fault or defect is an unpleasant characteristic of a wine often resulting from poor winemaking practices or storage conditions, and leading to wine spoilage. Many of the compounds that cause wine faults are already naturally present in wine but at insufficient concentrations to be of issue. In fact, depending on perception, these concentrations may impart positive characters to the wine. However, when the concentration of these compounds greatly exceeds the sensory threshold, they replace or obscure the flavors and aromas that the wine should be expressing (or that the winemaker wants the wine to express). Ultimately the quality of the wine is reduced, making it less appealing and sometimes undrinkable.M. Baldy: ''"The University Wine Course", Third Edition, pp. 37-39, 69-80, 134-140. The Wine Appreciation Guild 2009 . There are many causes for the perception in wine faults, including poor hygiene at the winery, excessive or insufficient exposure of the wine to oxygen, exce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wine Fault
A wine fault or defect is an unpleasant characteristic of a wine often resulting from poor winemaking practices or storage conditions, and leading to wine spoilage. Many of the compounds that cause wine faults are already naturally present in wine but at insufficient concentrations to be of issue. In fact, depending on perception, these concentrations may impart positive characters to the wine. However, when the concentration of these compounds greatly exceeds the sensory threshold, they replace or obscure the flavors and aromas that the wine should be expressing (or that the winemaker wants the wine to express). Ultimately the quality of the wine is reduced, making it less appealing and sometimes undrinkable.M. Baldy: ''"The University Wine Course", Third Edition, pp. 37-39, 69-80, 134-140. The Wine Appreciation Guild 2009 . There are many causes for the perception in wine faults, including poor hygiene at the winery, excessive or insufficient exposure of the wine to oxygen, exce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fermentation (wine)
The process of fermentation in winemaking turns grape juice into an alcoholic beverage. During fermentation, yeasts transform sugars present in the juice into ethanol and carbon dioxide (as a by-product). In winemaking, the temperature and speed of fermentation are important considerations as well as the levels of oxygen present in the must at the start of the fermentation. The risk of stuck fermentation and the development of several wine faults can also occur during this stage, which can last anywhere from 5 to 14 days for ''primary fermentation'' and potentially another 5 to 10 days for a '' secondary fermentation''. Fermentation may be done in stainless steel tanks, which is common with many white wines like Riesling, in an open wooden vat, inside a wine barrel and inside the wine bottle itself as in the production of many sparkling wines. History The natural occurrence of fermentation means it was probably first observed long ago by humans.H. Johnson: ''Vintage: The Story ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvest (wine)
The harvesting of wine grapes (Vintage) is one of the most crucial steps in the process of wine-making. The time of harvest is determined primarily by the ripeness of the grape as measured by sugar, acid and tannin levels with winemakers basing their decision to pick based on the style of wine they wish to produce. The weather can also shape the timetable of harvesting with the threat of heat, rain, hail, and frost which can damage the grapes and bring about various vine diseases. In addition to determining the time of the harvest, winemakers and vineyard owners must also determine whether to use hand pickers or mechanical harvesters. The harvest season typically falls between August & October in the Northern Hemisphere and February & April in the Southern Hemisphere. With various climate conditions, grape varieties, and wine styles the harvesting of grapes could happen in every month of the calendar year somewhere in the world. In the New World it is often referred to as the '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymerization
In polymer chemistry, polymerization (American English), or polymerisation (British English), is a process of reacting monomer, monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks. There are many forms of polymerization and different systems exist to categorize them. In chemical compounds, polymerization can occur via a variety of reaction mechanisms that vary in complexity due to the functional groups present in the reactants and their inherent steric effects. In more straightforward polymerizations, alkenes form polymers through relatively simple free-radical reaction, radical reactions; in contrast, reactions involving substitution at a carbonyl group require more complex synthesis due to the way in which reactants polymerize. Alkanes can also be polymerized, but only with the help of strong acids. As alkenes can polymerize in somewhat straightforward radical reactions, they form useful compounds such as polyethylene and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desiccation
Desiccation () is the state of extreme dryness, or the process of extreme drying. A desiccant is a hygroscopic (attracts and holds water) substance that induces or sustains such a state in its local vicinity in a moderately sealed container. Industry Desiccation is widely employed in the oil and gas industry. These materials are obtained in a hydrated state, but the water content leads to corrosion or is incompatible with downstream processing. Removal of water is achieved by cryogenic condensation, absorption into glycols, and absorption onto desiccants such as silica gel. Laboratory A desiccator is a heavy glass or plastic container, now somewhat antiquated, used in practical chemistry for drying or keeping small amounts of materials very dry. The material is placed on a shelf, and a drying agent or ''desiccant'', such as dry silica gel or anhydrous sodium hydroxide, is placed below the shelf. Often some sort of humidity indicator is included in the desiccator to show, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grape Tannins
Procyanidins are members of the proanthocyanidin (or condensed tannins) class of flavonoids. They are oligomeric compounds, formed from catechin and epicatechin molecules. They yield cyanidin when depolymerized under oxidative conditions. See the box below entitled "Types of procyanidins" for links to articles on the various types. Distribution in plants Procyanidins, including the lesser bioactive / bioavailable polymers (4 or more catechines), represent a group of condensed flavan-3-ols that can be found in many plants, most notably apples, maritime pine bark, cinnamon, aronia fruit, cocoa beans, grape seed, grape skin, and red wines of ''Vitis vinifera'' (the common grape). However, bilberry, cranberry, black currant, green tea, black tea, and other plants also contain these flavonoids.USDA, August 2004USDA Database for the Proanthocyanidin Content of Selected Foods PDF summary accessed from main USDA pag Page accessed July 31, 2015 Procyanidins can also be isolated from ''Q ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botrytis Cinerea
''Botrytis cinerea'' is a necrotrophic fungus that affects many plant species, although its most notable hosts may be wine grapes. In viticulture, it is commonly known as "botrytis bunch rot"; in horticulture, it is usually called "grey mould" or "gray mold". The fungus gives rise to two different kinds of infections on grapes. The first, grey rot, is the result of consistently wet or humid conditions, and typically results in the loss of the affected bunches. The second, noble rot, occurs when drier conditions follow wetter, and can result in distinctive sweet dessert wines, such as Sauternes (wine), Sauternes or the Aszú of Tokaji/Grasă de Cotnari. The species name ''Botrytis cinerea'' is derived from the Latin for "grapes like ashes"; although poetic, the "grapes" refers to the bunching of the fungal spores on their Conidium, conidiophores, and "ashes" just refers to the greyish colour of the spores ''en masse''. The fungus is usually referred to by its anamorph (asexual form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ripasso
Valpolicella (, , ) is a viticultural zone of the province of Verona, Italy, east of Lake Garda. The hilly agricultural and marble-quarrying region of small holdings north of the Adige is famous for wine production. Valpolicella ranks just after Chianti in total Italian ''Denominazione di Origine Controllata'' (DOC) wine production.J. Robinson (ed) ''"The Oxford Companion to Wine"'' Third Edition, pp. 19, 726. Oxford University Press 2006 . The red wine known as Valpolicella is typically made from three grape varieties: Corvina Veronese, Rondinella, and Molinara. A variety of wine styles is produced in the area, including a ''recioto'' dessert wine and Amarone, a strong wine made from dried grapes. Most basic Valpolicellas are light, fragrant table wines produced in a '' novello'' style, similar to Beaujolais nouveau and released only a few weeks after harvest. Valpolicella Classico is made from grapes grown in the original Valpolicella production zone. Valpolicella Superiore is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressing (wine)
In winemaking, pressing is the process where juice is extracted from the grapes with the aid of a wine-press, by hand, or even by the weight of the grape berries and clusters.Jeff Cox ''From Vines to Wines: The Complete Guide to Growing Grapes and Making Your Own Wine'' pgs 131-142 Storey Publishing 1999 Historically, intact grape clusters were trodden by feet but in most wineries today the grapes are sent through a crusher/destemmer, which removes the individual grape berries from the stems and breaks the skins, releasing some juice, prior to being pressed. There are exceptions, such as the case of sparkling wine production in regions such as Champagne where grapes are traditionally whole-cluster pressed with stems included to produce a lighter must that is low in phenolics.J. Robinson (ed) ''The Oxford Companion to Wine'' Third Edition pgs 285-286, 545-546, 767 Oxford University Press 2006 In white wine production, pressing usually takes place immediately after crushing or/a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
-Epicatechin.svg "Click for more on -> Grape Tannins")
.jpg "Click for more on -> Botrytis Cinerea")
