1. Agriculture, Food and Environmental Science Division (Food Microbiology Branch), Agri-food and Biosciences Institute, and Department of Food Science; Queen's University, Belfast, Newforge Lane; Belfast BT9 5PX Northern Ireland United Kingdom
2. Agriculture, Food and Environmental Science Division (Food Microbiology Branch), Agri-food and Biosciences Institute; Newforge Lane; Belfast BT9 5PX Northern Ireland United Kingdom