1. Department of Plant Science and Agricultural Engineering, Universidade de Trás-os-Montes e Alto Douro, Apartado 1013, 5001-911 Vila Real, Portugal; The Lewis B. and Dorothy Cullman Cancer Chemoprotection Center and Brassica Chemoprotection Laboratory, Department of Pharmacology and Molecular Sciences, School of Medicine, and Center for Human Nutrition, Bloomberg School of Public Health, The Johns Hopkins University, 725 North Wolfe Street, Baltimore, Maryland 21205