Melanoidins were prepared from tobacco,and their antioxidant activity were determined by radical scavenging activity,DPPH assay and antioxidant value.

• 以云南产烟草为实验材料制备不同的烟草类黑精；并用还原能力、抗氧化值、和[DPPH.；]自由基清除能力等指标对其抗氧化活性进行评价。