What is unsaponifiable matters?



What is unsaponifiable matters?..

Answer / s v l n kumar

Un saponifiable matter (U.S.M) are the higher aliphatic alcohols, sterols, pigments and hydrocarbons. These substances frequently found dissolved in fatty acids (oils) which cannot be saponified by caustic (NaOH/KOH) treatment performed by AOCS method.

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