1. ANALYSIS OF FREE AMINO ACIDS FROM PLANT EXTRACTS BY CHROMATOGRAPHIC METHODS. Authors: MONICA CULEA, SORIN HODISAN, ANAMARIA HOSU, CLAUDIA CIMPOIU.2. CARACTERISATION OF ORIGANUM VULGARE EXTRACTS. Authors: SORIN HODISAN, RAMONA POP MAGHIAR, ALINA GROZE, MARIANA GANEA, OANA STANASEL.