发菜(Nostoc flagelliforme)是我国传统出口的一种珍贵野生旱生食用蓝藻,世界上只我国作为商品,素负盛誉.宁夏是我国发菜主要产地和集散地之一.为进一步了解其营养成分、药用价值和开发新的经济价值,我们对发菜在不同生态环境下营养及化学成分进行了测定,结果如下. Nostoc flagelliforme is a kind of valuable wild and dry-eating edible cyanobacteria that is exported to our country. Only the country as a commodity enjoys a good reputation in the world.Ningxia is one of the main producing areas and distribution centers in China.For further understanding of its nutritional content, Medicinal value and the development of new economic value, we have carried on the determination to the nutrition and the chemical composition of the hairpin in different ecological environment, the result is as follows.