Acids in wine responsible for the sour taste of vinegar. During fermentation, activity by yeast cells naturally produces a small amount of acetic acid. If the wine is exposed to oxygen, "Acetobacter" bacteria will convert the ethanol into acetic acid. This process is known as the “acetification” of wine and is the primary process behind wine degradation into vinegar. An excessive amount of acetic acid is also considered a wine fault. A taster's sensitivity to acetic acid will vary, but most people can detect excessive amounts at around 600 mg/l. Ascorbic acid, also known as vitamin C, is found in young wine grapes
Our Word Is Our Weapon Our Word Is Our Weapon Our Word is Our Weapon () is a collection of writings by Subcomandante Marcos of the Zapatista Army of National Liberation. Marcos has become somewhat of an icon, a poetic representative of a much larger struggle. Much of the book contains political essays, as well as stories and commentary in the style of magical realism, with conversations between Marcos and a beetle named Durito. The book was published by Seven Stories Press in 2002. "Somewhere between the passionate analysis of Ricardo Flores Magón, and the poetic fury of Eduardo Galeano, lie these most powerful and