Butylated hydroxyanisole ( bha ) and the related compound butylated hydroxytoluene ( bht ) are phenolic compounds that are often added to foods to preserve fats .

叔丁基羟基茴香醚（bha）和相关化合物二叔丁基对甲酚（bht）是经常添加在食物里用于保存脂肪的酚类化合物。