Sensory scores are given in Table 3.Degradation in aroma increased after 5 d of storage in untreated samples (UTC, UT1 and UT2) and after 10 d in treated control (TC). However, the aroma of T1 and T2 did not degrade to such an extent even at the end of storage.Development of off odours in MAP mushrooms is attributed to low O2 concentrations which lead to fermentative metabolism under anaerobic conditions