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.
Citric acid is an organic acid that is a component of all aerobic living organisms â most abundantly, and not surprisingly, in citrus fruit.This weak acid has been used as an additive in processed foods for more than 100 years as a preservative, a sour flavoring, or an emulsifying agent.itric acid used to be made from fruit. Now itâs more commonly made from feeding sugars to black mold and processed using sulfuric acid. Citric acid is in just about all processed foods. Itâs also often found in kitchen cleaners, and does a great job removing mineral deposits from chrome.