摘要： 对4个品种的胡萝卜（新黑田五寸人参、HERTAGE、XPH3910和TEBE）进行贮藏期间干物质和β 胡萝卜素动态研究。结果表明，贮藏期间干物质含量（干/鲜）呈下降趋势。β 胡萝卜素含量的变化受贮藏温度的影响，呈现四个阶段：第一阶段温度降低，肉质根进入休眠状态，β 胡萝卜素含量略有下降；第二阶段温度稳定，肉质根处于休眠状态，β 胡萝卜素含量稳定；第三阶段温度回升，生理休眠打破，β 胡萝卜素含量剧增，其增加量可达一倍以上；第四阶段温度缓慢升高，嫩芽不断生长，β 胡萝卜素含量开始降低。

关键词: 胡萝卜, &beta, -胡萝卜素, 高效液相色谱法, 贮藏

Abstract: Dynamic changes of β Carotene and dry matter content of four carrot varieties (Xinheitan, HERTACE, XPH3910 and TEBE) were studied during postharvest storage. The experiment revealed that the dry matter content (dry/fresh) decreased constantly and the β Carotene content was subject to the changed of temperature during storage. There were four phases in the whole stage. At the first phase, with temperature dropping, fleshy roots entered dormant period, and β Carotene content decreased slightly; at the second stage, with lower stable temperature, fleshy roots remained in the dormant period and β Carotene content changed very slightly; at the third stage when temperature went up again, the dormancy was broken and β Carotene content went up more than doubled, at the fourth stage, with temperature going up slowly, the tender shoots grew continuously and β Carotene content began to go down.

Key words: Carrot (Daucus carota L.), &beta, Carotene, HPLC, Postharvest storage