Sorbitan monooleate is produced by the esterification of sorbitol with oleic acid. Sorbitol is a sugar alcohol that are commonly derived from corn and pototoes or the reduction of glucose. In the biological systems, sorbitan fatty acid such as oleic acid often do not occur in the fatty acids form, instead they are usually in their esters form. Triglycerides are the common forms where oleic acids occur in nature. They can be found in both plants and animals. To satisfy the varieties of customers, Huana Chemical has chosen to use plant-derived oleic acids. Thus, the sorbitan monooleate manufactured by Huana are vegetarian and vegan friendly.