光质对香椿芽苗菜生长和营养品质的影响  

EFFECTS OF LIGHT QUALITY ON THE GROWTH AND NUTRITIONAL QUALITY OF TOONA SINENSIS SPROUTS

作　　者：鲁燕舞 唐丽[1] 张晓燕[1] 崔瑾[1] 

机构地区：[1]南京农业大学生命科学学院,南京210095

出　　处：《营养学报》2014年第2期188-192,共5页Acta Nutrimenta Sinica

基　　金：国家自然科学基金(31171998)

摘　　要：目的探究不同光质处理对香椿芽苗菜生长及营养品质的影响。方法以黑暗为对照,将香椿苗置于白、红、黄和蓝四种发光二极管(LED)光源的光照培养箱内培养,日照光12 h,光照强度为(30±3)?mol/(m·s),照光培养13 d后测定香椿芽苗菜的各项生长和品质指标。结果白光处理下生长的香椿芽苗菜可食干质量、全株干质量、可食率、维生素C(VC)和可溶性糖含量显著高于对照和其他光质处理。蓝光处理下香椿芽苗菜可溶性蛋白和游离氨基酸含量最高且显著高于对照和其他光质处理。红光处理能显著降低硝酸盐含量,其次是白光和蓝光处理。与对照和其他光质处理比,白光和黄光处理下生长的香椿芽苗菜地上部分的总黄酮含量显著提高,白光处理的芽苗菜地下部分的总黄酮含量显著提高。与对照相比,红光处理下香椿芽苗菜子叶中的花青苷含量最高,其次是黄光处理。结论白光照射有利于香椿芽苗菜的生长,提高可食率,改善部分营养品质。Objective To explore the effects of different light qualities on the growth and nutritional quality of Toona sinensis sprouts. Methods The Toona sinensis sprouts were cultured under four kinds of LED light radiation： ： white light, red light, yellow light and blue light. A photon flux density of about （30±3） μmol/（m-s） and a 12 h photoperiod were maintained during LED treatments. The dark treatment was used as control. After 13 d treatment, the indices related to growth and quality of Toona sinensis sprouts were measured. Results Compared with the control and other LEDs treatment, the edible dry mass, total dry mass, edible rate, vitamin C content, and soluble sugar content of Toona sinensis sprouts were changed significantly in white light treatment. The contents of soluble protein and amino acids were significantly increased in blue light treatment. The content of nitrate were significantly down-regulated in red light treatment followed by white light and blue light treatments. The light and yellow light treatments significantly increased total flavonoid content （TFC） of sprout shoot, while the white light treatment significantly increased TFC of sprout root. Compared with the control, red light treatment significantly promoted anthocyanin accumulation of sprout leaf, followed by yellow light treatment. Conclusion The results suggested that white light treatment can benefit the growth of Toona sinensis sprouts, and increase the edible rate and improve partially nutritional quality.

关 键 词：香椿 LED 总酚类 总黄酮 花青苷 

分 类 号：S644.4[农业科学—蔬菜学]