通过对贮藏过程中气调包装蒲菜生理指标(粗纤维、失重率、总酸、VC 和气体含量)及其感官品质的变化，确定气体组成、温度和壳聚糖涂膜处理对蒲菜气调贮藏过程中生理和品质的影响，提出蒲菜气调保鲜- 涂膜的优化工艺条件。结果表明：蒲菜采后气调保鲜前20d，VC 含量和总酸含量有所下降，失重率和粗纤维含量有所上升。当气体比例O2:CO2:N2 为5:10:85(V/V)，经1% 浓度壳聚糖溶液涂膜处理，在低温下贮藏能抑制蒲菜在贮藏期间的蒸腾失水，保持较低的粗纤维含量和较高的VC 含量，降低蒲菜的呼吸作用，在上述条件下蒲菜保鲜期可延长至30d。

By examining the changes of physiological indicators (crude fiber, weight loss, total acid, VC and gas content) and sensory attributes during storage, the effects of gas composition of modified atmosphere, storage temperature and chitosan coating treatment on physiological quality and appearance of narrowleaf cattail. Then, based on this, an optimal modified atmosphere packaging (MAP)-chitosan coating process was proposed for preserving narrowleaf cattail. The contents of VC and total acid decreased while the weight loss and the content of crude fiber changed reversely during 20 d storage. When packaging under modified atmosphere consisting of 5% O2:10% CO2:85% N2 were used together with treatment with 1% chitosan coating, the weight loss and the respiration could be inhibited, and the contents of crude fiber and of VC were maintained at low and high levels, respectively, during low temperature (4 ℃) storage. Under the above conditions, narrowleaf cattail could be stored for up to 30 days.