. . . "E236, CH2O2HCOOH) found in bee and ant stings,Lactic acid (E270, C3H6O3) found in dairy products such as yoghurt and sour milk, also is product of cellular fermentation, the reason muscles burn,Oxalic acid (C2H2O4) found in spinach and rhubarb, Pectic acid (C17H24O16) found in fruits and some vegetables, Sorbic acid (E200, C6H8O2) found in foods and drinks, Stearic acid (E570, C18H36O2), a type of" . .