The invention discloses monohydroxy
conjugated linoleic acid, a preparation method and application thereof, which relate to a novel
conjugated linoleic acid derivative, namely the monohydroxy
conjugated linoleic acid, the preparation method and the application thereof. The compounds are the monohydroxy conjugated
linoleic acid obtained by following steps: stirring
linoleic acid and
selenium dioxide for 0.5 to 2h at a temperature of between 25 and 60 DEG C; continuing stirring to react for 12 to 48 hour; and adding water to wash the obtained product; collecting an
organic solvent layer and recovering a
solvent, wherein a molecular formula is C18H32O3, and the morphology is yellowish oily matter. The monohydroxy conjugated
linoleic acid is used for preparing medicaments or food for treating
obesity or reducing blood fat or reducing
blood sugar or improving the
immunity or resisting tumor, and preparing antioxidative and whitening
skin nursing preparations for
external application. L-
carnitine can also be added into dihydroxyoleic acid to prepare medicaments or food for treating
obesity or reducing blood fat or reducing
blood sugar or serve as a
feed additive, and the weight ratio ofthe monohydroxy conjugated linoleic acid to the L-
carnitine in a product is 4:1-8.