[1] Univ Florence, Dipartimento Chim Organ Ugo Schiff, I-50019 Sesto Fiorentino, FI, Italy
[2] FiorGen Fdn, Sesto Fiorentino, FI, Italy
[3] Univ Florence, Dept Agr Biotechnol, Sesto Fiorentino, FI, Italy
[4] Univ Florence, Magnet Resonance Ctr, I-50019 Sesto Fiorentino, FI, Italy
[5] ProtEra Srl, Sesto Fiorentino, FI, Italy