Oil is oxidanted and ranciditied easily, and its oxidative rancidity can be delaied by various kinds of anti-oxidants, but the natural anti - oxidants are far superior to the formated antioxidants.

• 摘要油脂易发生氧化酸败，各种抗氧化剂具有防止延缓其氧化的作用，而天然杭氧化剂具有合成抗氧化剂不可比拟的优越性。