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.
Milk-based products are rich in both lactic acid and the protein casein. Lactose fermentation to lactic acid increases the food acidity; the acid combines with the casein, and the two coagulate and precipitate.The precipitate is then removed from the milk, and the dairy product derived from it is low in â or free of â lactose.ilk-based products are rich in both lactic acid and the protein casein. Lactose fermentation to lactic acid increases the food acidity; the acid combines with the casein, and the two coagulate and precipitate.