1. Department of Food Science and Agricultural Chemistry and Department of Agricultural and Biosystems Engineering, Macdonald Campus of McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, Quebec, H9X 3V9, Canada; Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, People's Republic of China, 300071; and Environmental Technology Center, 3439 River Road, Ottawa, Canada K1A 0H3