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.
L. lactis is a facultative anaerobe that converts carbohydrates into lactic acid by lactic acid fermentation. The lactic acid fermentation can produce L-lactic acid and D-lactic acid at low pH. When added to milk, the bacterium uses enzymes to produce ATP from lactose the byproduct of which is lactic acid.. lactis is a facultative anaerobe that converts carbohydrates into lactic acid by lactic acid fermentation. The lactic acid fermentation can produce L-lactic acid and D-lactic acid at low pH. When added to milk, the bacterium uses enzymes to produce ATP from lactose the byproduct of which is lactic acid.