Comparative study of microelement composition of Lycium barbarum and Lycium ruthenicum fruits
The comparative elemental composition of the fruits of Lycium barbarum L. introduced in the Botanic garden of Vladikavkaz (North Ossetia-Alania), of Lycium barbarum (commercially available samples), and of wild Lycium ruthenicum Murr. collected in the Absheron district of the Tugchay river was investigated. A high content of trace elements including essential ones was found in the fruit of the samples studied. Major in the fruit of the introduced Lycium barbarum was magnesium - 468.5 mg / kg; in the commercially available Lycium barbarum - silicon (546.25 mg / kg); in the Lycium ruthenicum - iron (870.7 mg / kg), silicon (681.5 mg / kg), magnesium (547 mg / kg). Molybdenum (2.68 mg / kg) and tin (0.7 m g / kg), were found in the fruits of the Lycium barbarum (introduced sampl), but they were not found in the other two samples. The maximum content of lead in all three samples does not exceed acceptable standards.