... absolutely safe food additives.2. Pharmaceutical industry: Lactic acid lactic acid is a kind of important pharmaceutical intermediates, ... update, pH regulator, acne, to ChiGou agent,4. Pesticide industry: Lactic acid high biological activity of soil and ... Besides above purposes, lactic acid is used to produce biodegradable plastics, poly lactic acid and green solvent - lactic acid methyl ethyl lactate, ...