1. Northern German Organic Fruit Consultancy Service ÖON Esteburg Centre, Moorende 53, 21635 Jork , Germany
2. Fruit Research Station OVA Esteburg Centre , Moorende 53, 21635 Jork , Germany
3. Department of Food Science , Aarhus University Kirstinebjergvej 10, 5792 Årslev, Denmark