[1] Democritus Univ Thrace, Dept Mol Biol & Genet, Lab Appl Microbiol & Biotechnol, Alexandroupolis 68100, Greece
[2] Greek Agr Org Demeter, Inst Technol Agr Prod, Athens 15310, Greece
[3] Univ Bucharest, Dept Bot Microbiol, Lab Microbiol Immunol, Fac Biol, Bucharest, Romania
[4] Univ Parma, Food & Drug Dept, Parma, Italy