Transactions have traditionally been handled manually, between brokers or counterparties. However, starting in the 1970s, a greater portion of transactions have migrated to electronic trading platforms. These may include electronic communication networks, alternative trading systems,  dark pools  and others.
Lactic acid in Food. Lactic acid is naturally present in many foodstuffs. It is formed by natural fermentation in products such as cheese, yogurt, soy sauce, sourdough, meat products and pickled vegetables.
Vinegar. Acetic acid (also called ethanoic acid) is a weak organic acid. Unlike a lot of other food additives, acetic acid is commonly used in home cooking. Acetic acid is what gives vinegar its distinctive sour taste and pungent smell.Common table vinegar is diluted acetic acid. Usually it is about 4% to 8% by mass.escription: Vinegar. Acetic acid (also called ethanoic acid) is a weak organic acid. Unlike a lot of other food additives, acetic acid is commonly used in home cooking. Acetic acid is what gives vinegar its distinctive sour taste and pungent smell. Common table vinegar is diluted acetic acid.