Conjugated linoleic acid has good physiological activity.The CLA was prepared by the alkali isomerization with KOH as catalyst and sunflower oil as raw material.

• 共轭亚油酸具有很好的生理活性.；本文以葵花油为原料；KOH为催化剂；研究了碱异构化法制备共轭亚油酸;