(Rio Grande do Sul, Brazil). Itsapproximate composition was gelatin (48.2%), water (30.0%) andglycerin (21.8%). Radical 2,2-diphenyl-1-picrilidrazil (DPPH) waspurchased from Sigma–Aldrich (São Paulo, Brazil). Sunflower oil(Liza, Cargill Agricola SA, Brazil) was acquired at a local market. Allother reagents used were of analytical grade.