Nutritional and toxic factors in selected wild edible plants.
Nutritional (ascorbic acid, dehydroascorbic acid and carotenes); antinutritional and toxic components (oxalic acid, nitrate and erucic acid) were determined in sixteen popular species of wild edible plants which are collected for human consumption in southeast Spain. Ascorbic + dehydroascorbic acids contents were very high in several species, especially in Chenopodium album L. (155 mg/100 g). Carotenoid content ranged from 4.2 mg/100 g (Stellaria media Villars) to 15.4 mg/100 g (Amaranthus viridis L.). A range of values was found for oxalic acid from absence to 1100 mg/100 g of plant material. Nitrate contents ranged from 47 mg/100 g (Salicornia europaea L.) to 597 mg/100 g (Amaranthus viridis L.). Low amounts of erucic acid were found in the Cruciferae family (Sisymbrium irio L. 1.73%; Cardaria draba L. 1.23%) and Plantago major L. 3.45%.
Guil
J L
JL
Departamento de Ingeniería Química, Universidad de Almería, Spain.
Rodríguez-García
I
I
Torija
E
E
D001205:Ascorbic Acid / Q000032:analysis; D002338:Carotenoids / Q000032:analysis; D003683:Dehydroascorbic Acid / Q000032:analysis; D004883:Erucic Acids / Q000032:analysis*; D006801:Humans; D009566:Nitrates / Q000032:analysis*; D009753:Nutritive Value; D010070:Oxalates / Q000032:analysis*; D019815:Oxalic Acid; D010945:Plants, Edible / Q000737:chemistry*
D004883:Erucic Acids; D009566:Nitrates; D010070:Oxalates; C049811:erucic acid; D002338:Carotenoids; D019815:Oxalic Acid; D001205:Ascorbic Acid; D003683:Dehydroascorbic Acid