光质对蚕豆芽苗菜生长及营养品质的影响

Effects of Light Quality on the Growth and Nutrition Quality of Faba Bean Sprouts

摘要: 以黑暗作为对照组，采用LED灯调节光质和光量，研究不同光质对蚕豆芽苗菜生长和营养品质的影响。结果表明，红光、蓝光和白光处理不仅显著抑制了蚕豆芽苗菜下胚轴的伸长，还显著减少了蚕豆芽苗菜地上部的鲜质量。蓝光条件下，蚕豆芽苗菜的可溶性蛋白质、维生素C和左旋多巴含量均显著高于对照组(P < 0.05)。游离氨基酸含量在白光条件下达到最大为1.72 g/100g。研究表明，光质处理蚕豆芽苗菜，特别是蓝光处理，能提高芽苗菜的营养品质。

Abstract: The effects of light spectral energy distribution of light emitting diode (LED) on growth and nutrition quality of faba bean sprouts have been investigated, with the dark treatment used as control. The results showed that, compared with the dark treatment, light treatment not only inhibited the hypocotyl elongation of faba bean sprouts, but also decreased the fresh weight of faba bean sprouts. The contents of soluble protein, vitamin C and levodopa significantly increased under blue light treatment (P < 0.05). The white light treatment significantly increased the free amino acid content in faba bean sprouts, which is 1.72 g/100g. The results suggest the light treatment, especially blue light, are effective in promoting growth and nutritional quality of faba bean sprouts.