1. Center for Viticulture and Small Fruit Research; Florida A & M University; Tallahassee FL USA
2. Vita 34 AG; Leipzig Germany
3. Department of Analytical Chemistry; University of Food Technologies; Plovdiv Bulgaria
4. Laboratory of Applied Biotechnologies, The Stephan Angeloff Institute of Microbiology; Bulgarian Academy of Sciences; Plovdiv Bulgaria
5. Institute of Food Technology and Bioprocess Engineering; Technische Universität Dresden; Dresden Germany