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Wine and Wine Tasting. November 15, 2005 Eugene N. Losey Elmhurst College. Why Wine?. It's natural. Budbreak. Harvest. Why Wine?. It's natural. It's living. Red Wine. Why Wine?. It's natural. It's living. It's social. It's aesthetic. Aesthetic. Why Wine?. It's natural.
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Wine and Wine Tasting November 15, 2005 Eugene N. Losey Elmhurst College
Why Wine? • It's natural.
Why Wine? • It's natural. • It's living.
Why Wine? • It's natural. • It's living. • It's social. • It's aesthetic.
Why Wine? • It's natural. • It's living. • It's social. • It's aesthetic. • It's unique and varied.
Why Wine? • It's natural. • It's living. • It's social. • It's aesthetic. • It's unique and varied. • It’s healthful (in moderation).
Chemical Substances inGrapes • Water • Grape Sugars • Natural Acids • Phenolics
Chemical Substances inGrapes • Pectins • Organic Molecules (flavor components) • Esters • Carboxylic Acids • Aldehydes • Alcohols • Terpenes • Biochemicals
Pectins • Nature’s thickening agents. • Lost in Fermentation • Or ‘removed’ with pectic enzymes
Biochemicals • Enzymes • Amino Acids • Proteins • Vitamins • Glycerin • Inorganic Ions
Fermentation Biochemistry yeast’s enzymes C6H12O6 -------------> 2 C2H5OH + 2 CO2 + (ethyl alcohol) heat
Malolactic Fermentation bacteria Malic Acid ----------------> Lactic Acid (more acidic) (less acidic)