Peppers are highly appreciated by customer in the world moving a market in constant growth.Brazil is the second largest worldwide producer of black pepper.The constituents of black pepper oil, which contribute to the value of black pepper as a food additive, are the essential oil for aroma and the alkaloidal compounds for the pungency. Many studies show that black pepper has antioxidant, anti-inflammatory and anti-tumor properties. Supercritical fluid extraction(SFE) provides extracts with high purity and free of solvent contamination. Therefore, the aim of this work is to investigate the quality of the black pepper extracts obtained by supercritical CO2 at different conditions of pressures and temperatures in order to evaluate the yield behavior and the antioxidant characteristic. The moisture content of de raw material is 15.1-0.2% and the extraction yields were up to 2.9-0.1%, obtained at 200 bar and 313.15K. The antioxidant aspects will be evaluated by means of the determination of the total phenolic content by Folin-Ciocalteau method and by the antioxidant activity by the DPPH,ABTS and B-carotene methods.