噪声对黄瓜贮藏的影响

Influence of noise on cucumber's preservation

通过实验研究了噪声对黄瓜贮藏的影响。选用频率为 2～ 4kHz,强度分别为 85、95和 1 0 2dB的噪声 ,测定采摘后黄瓜在 8～ 1 2d的贮藏时间内 ,过氧化氢酶 (CAT)活性的变化趋势及 85dB噪声作用下其内源乙烯释放量的变化。结果表明 ,噪声能提高采后黄瓜内源乙烯的释放量 ,使黄瓜的CAT活性在贮藏前期维持在较高水平 ,贮藏后期下降速度较快 ,黄瓜较早失去食用价值。

We investigate the influence of noise on cucumber's preservation. We select: noise frequency,2-4?kHz; intensity, 85,95 and 102?dB. The quantity of ethylene releasing and variation of Catalase activity for the cucumbers in 8-12 days storage. The results show that noise treatment can increase the ethylene releasing, keeping the CAT activity at a higher level during the earlier storage and at a descending status, later. Therefore, the cucumber will lose edible value earlier, i.e. noise treatment accelerates the cucumber's decrepitude.