1. Natl. Nanotechnology Laboratory for Agribusiness; Embrapa Instrumentação-Rua XV de Novembro; 1452 São Carlos SP 13560-979 Brazil
2. PPG-CEM, Dept. of Materials Engineering; Federal Univ. of São Carlos-Rod. Washington Luis; km 235 São Carlos SP 13565-905 Brazil
3. Healthy Processed Foods Research, Western Regional Research Center; Agricultural Research Service; USDA-800 Buchanan St. Albany CA 94710 USA
4. Embrapa Tropical Agroindustry-Rua Dra Sara Mesquita; 2270 Fortaleza CE 60511-110 Brazil
5. PPGQ, Dept. of Chemistry; Federal Univ. of São Carlos-Rod. Washington Luis; km 235 São Carlos SP 13565-905 Brazil
6. Dept. of Physics and Chemistry; FEIS; São Paulo State Univ.-Av. Brasil, 56 Ilha Solteira SP 15385-000 Brazil