为了研究高二氧化碳处理对马铃薯绿变和龙葵素含量的影响，研究了不同时间高二氧化碳处理后光照贮藏马铃薯表皮a值、叶绿素和龙葵素含量的变化。结果表明，随着贮藏时间的延长马铃薯表皮a值下降，颜色趋于绿色，高二氧化碳处理能够抑制马铃薯表皮a值的降低，贮藏期间HCO2-24处理表皮a值最高；叶绿素含量均有所升高，贮藏到12天，对照叶绿素含量达到17.11 mg/kg，HCO2-12处理含量为7.10 mg/kg，HCO2-48处理含量为4.80 mg/kg，而HCO2-24处理含量为3.45 mg/kg，从试验数据可以看出，高二氧化碳处理能够控制马铃薯绿变，延长货架期；贮藏后龙葵素含量升高，而HCO2-24处理含量有所降低，但差异不显著。

In order to study the effect of high carbon dioxide treatment on greening and glycoalkaloid content of potatoes, stored under light condition, changes in a value, chlorophyll and glycoalkaloid content of potato peel with different time of high carbon dioxide treatment were investigated. Results showed that a value of potatoes decreased with extension of the storage time, the color tended to green. High carbon dioxide treatment could inhibit the decrease of a value of the potato peel, a value of HCO2-24 treatment maintained maximum during storage. Chlorophyll content of all treatments increased, until day 12 of storage, the content of control treatment was at 17.11mg/kg, HCO2-12 at 7.10 mg/kg, HCO2-48 at 4.80 mg/kg, whereas HCO2-24 at 3.45 mg/kg. Based on the experimental results, high carbon dioxide treatments could inhibit potato greening and prolong its shelf life. Glycoalkaloid content increased after storage; however, the content of HCO2-24 treatment was not decreased obviously.