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.
Lactic acid fermentation is a biological process by which glucose and other six-carbon sugars (also, disaccharides of six-carbon sugars, e.g. sucrose or lactose) are converted into cellular energy and the metabolite lactate.actic acid fermentation is also used in the production of sauerkraut. The main type of bacteria used in the production of sauerkraut is of the genus Leuconostoc.