Trace Elements in Medicine (Moscow)
2022, 23(1): 47-53
ORIGINAL PAPERS

EVALUATION OF THE ELEMENTAL COMPOSITION OF A LICHEN AS A POTENTIAL SOURCE OF MICRONUTRIENTS

S.V. Nekhoroshev, A.V. Nekhorosheva, M.F. Kot, A.B. Sabutova

Khanty-Mansiysk State Medical Academy, Russia, 628010, Khanty-Mansiysk, Mira st., 40

DOI: 10.19112/2413-6174-2022-23-1-47-53 

ABSTRACT. In light of the possible use of the lichen thallus r. Cladonia as a valuable biological raw material for a series of bioextracts used in cosmetology and food industry, a study was carried out to determine the content of toxic and biogenic 25 elements: aluminum (Al), boron (B), vanadium (V), iron (Fe), iodine ( I), potassium (K), cadmium (Cd), calcium (Ca), cobalt (Co), silicon (Si), lithium (Li), magnesium (Mg), manganese (Mn), copper (Cu), arsenic ( As), sodium (Na), nickel (Ni), tin (Sn), mercury (Hg), lead (Pb), selenium (Se), strontium (Sr), phosphorus (P), chromium (Cr), zinc ( Zn) in samples of lichens and their extracts (Khanty-Mansi Autonomous Okrug-Yugra). The production of extracts from samples of plant raw materials was carried out by the maceration method, using glycerin, olive oil, and rapeseed oil as extractants used by the manufacturer for the manufacture of bioextracts at temperatures of 40 and 90 C, the extraction time is 24 hours. It was determined that in lichen samples the content of toxic elements and heavy metals is hundreds of times lower than the MPC for these elements in food. In addition, the article presents analytical data on the determination of some biogenic elements in lichens. It has been established that reindeer lichen samples presented for analysis by a regional manufacturer of bioextracts and the extracts obtained from them, when used by humans, cannot be considered as a significant source of vital elements entering the human body.

KEYWORDS: lichen thallus, heavy metals, biogenic elements, toxicity, bioextracts.