Process for the deodorization and stabilization of polyunsaturated oils

摘要

Disclosed are novel deodorization processes to realize highly polyunsaturated oils of enhanced stability. The novel deodorization has particular suitability for processing fish oils and soybean oil. The process involves use of mild solutions of acids and/or bases in sequential distillations to manipulate the volatility of undesirable aroma compounds to effect removal of offending compounds and precursors therefor. The oils are then polished to remove residual moisture and salts and to acidify the oil.