The effects of extracts from the peels and pithes of sweet potato and potato as antioxidants in soy oil were investigated by using the active oxygen methed(AOM) and a new ferric thiocyanate filter paper method.

• 用活性氧法（AOM）及滤纸硫氰化铁新法研究了甘薯与马铃薯皮部与肉部提取物对大豆油的抗氧化活性。