为实现叶类蔬菜常温下长途运输销售,以油菜为试材,研究了不同浓度CO2(0、3%、6%、9%、12%、15%、18%)对常温(20±1)℃条件下油菜贮藏品质的影响。结果表明:随着贮藏时间延长,各处理的叶绿素、Vc和还原糖含量均逐渐减少,黄化指数和失重率逐渐增大,可溶性固形物含量先升高后降低。贮藏8 d时,各处理失重率差异不显著;18%浓度CO2处理的叶绿素含量最高,黄化指数最小;9%和12%浓度CO2处理的Vc、可溶性固形物和还原糖含量极显著高于其他处理,这两组处理的油菜在常温下能够贮藏6d仍具有商品性。

In order to achieve the long-distance transportation of leafy vegetables at room temperature,the effect of CO 2 with different concentrations(0,3%,6%,9%,12%,15%,18%) on the storage quality of Bok choy at room temperature(20 ± 1℃) was investigated.The results showed that with the extension of storage time,chlorophyll content,Vc content and reducing sugar content were decreased,yellowing index and the weight loss were gradually increased,and soluble solids content increased first and then decreased.At the eighth day of storage,the weight loss rate of each treatment was not significant;Chlorophyll content and yellowing index with CO 2 were smallest;Vc content,soluble solids content and reducing sugar content with the treatment of 9% and 12% CO 2 was significantly higher than other treatments and Bok choy still had market value at room temperature after 6d.