Comparative assessment of nutritional composition, polyphenol profile and antioxidative properties of wild edible ferns from northeastern China.

Ferns are one of the prevalent species of wild edible plants but one of the least explored terrestrial plants. Therefore, the aim of this study was to assess the nutrient composition, polyphenol profile and antioxidative properties of four wild edible ferns commonly utilized in northeastern China. We studied the content of ash, polysaccharide, protein, fat and mineral elements of the samples.