评价油脂氧化的指标多样，而对于贮藏在低氧光照环境下的油脂是否适用有待研究。以食用菜籽油为研究对象，用较低透氧率的软塑膜PET12/CPP20包装后，在不同光照强度下进行贮藏实验，测定油脂常用的氧化指标，包括过氧化值、共轭二烯值、共轭三烯值、光敏剂（叶绿素）、挥发性醛类（己醛），以此来确定适用于光照加速试验的氧化指标。结果表明：过氧化值在光照条件下迅速增大，同时光照加速了其降解，导致了过氧化值与光照强度无显著关系；共轭二烯值与共轭三烯值呈波动上升趋势，己醛及光敏剂的含量与光照强度显著相关；中低透氧率膜包装菜籽油的保质期预测应以己醛及光敏剂为主要光氧化指标。

There are various oxidation indexes, whether they are suitable for evaluation of oil stored in low oxygen and light environment still need to be studied. Edible rapeseed oil was taken as object of study, which was packaged with low oxygen transmission rate PET12/CPP20 film. Storage test was carried out under different light intensity. Oxidation indexes in common use were determined, including peroxide value(PV), K-232 and K-270 values, photosensitizer (chlorophyll), and volatile aldehyde. The results showed that, peroxide number increases rapidly in light conditions, while light also accelerated its degradation, which causes little relationship between peroxide number and light intensity; K-232 and K-270 values are almost insignificantly increases with light intensity; Caproic aldehyde and photosensitizer are significantly correlated with light intensity. It was concluded that caproic aldehyde and photosensitizer can be the main oxidation indexes of shelf life prediction of rapeseed oil packaged in middle and low oxygen penetration rate film.