Bioconcentration efficiency of Lemna minor L. and Lemna gibba L. for trace metals in three southeastern Bulgarian water reservoirs

Abstract

La lenteja de agua se utiliza en el tratamiento de aguas residuales para eliminar sustancias nocivas, minerales y contaminación orgánica. El propósito del presente estudio fue investigar la eficiencia de bioconcentración de metales pesados en Lemna minor y Lemna gibba provenientes de tres embalses del sureste de Bulgaria: el canal de la ciudad de Elhovo, el canal del lago Vaja y el canal del lago Mandra. Se analizaron los contenidos de proteína cruda, lípidos y ceniza en las especies estudiadas de Lemna. Los metales pesados en agua y plantas acuáticas se determinaron con un espectrómetro de absorción atómica (AAS) "A Analyst 800" - Perkin Elmer. Las concentraciones de metales en L. minor y L. gibba mostraron una tendencia descendente: Mn>Fe>Zn>Cu>Ni> Cr>Pb>Cd en las tres masas de agua. Duckweed is used in wastewater treatment to remove inorganic substances, mineral and organic contamination. The purpose of present study was to investigate a Lemna minor and Lemna gibba bioconcentration efficiency of trace metals in three southeast Bulgarian water reservoirs. Three waterbodies located on the territory of South East Bulgaria: water canal town Elhovo, water canal Vaja Lake and water canal Mandra Lake was studied. Crude protein, lipid, ash content in studied species of Lemna were analyzed. The trace metal content in water and aquatic plants was determined on an atomic absorption spectrometer (AAS) "A Analyst 800" - Perkin Elmer. The concentrations of metals in both L. minor and L. gibba and for all sites showed a downward trend: Mn>Fe> Zn>Cu>Ni>Cr>Pb>Cd.

Pulmonary Protein Oxidation and Oxidative Stress Modulation by Lemna minor L. in Progressive Bleomycin-Induced Idiopathic Pulmonary Fibrosis

“…Lemna minor L. (L. minor, Duckweed), a fast-growing freshwater plant used in traditional medicine as an antiscorbutic, depurative diuretic, natural agent effective for colds [31]. Structurally, L. minor extract contains 32 biologically active ingredients such as: phytosterols (>52.8 mg/kg), hydrocarbons (>23.1 mg/kg), aldehydes and ketones (>20.2 mg/kg), proteins (>21.80%), lipids (>11.1 mg/kg), etc., [32,33], determining the potential antioxidant nature [31]. Recently, it has been emphasized that L. minor is an environmental inhibitor that registers high toxicological and pharmaceutical potential [34].…”

Protective Activity of Lemna Minor L. In Chronic Bleomycin–induced Lung Inflammation

“…The author illustrates the antioxidant abilities of L. minor that allow it to absorb ciprofloxacin-induces toxic effects and reduce hydrogen peroxide (H2O2) accumulation alongside the increased oxidative stress. The LME antioxidant effect originating from the southeastern Bulgarian region is based on 32 biologically active constituents like phytosterols (52.8 mg/kg), hydrocarbons (23.1 mg/kg), aldehydes and ketones (20.2 mg/kg), protein (21.80 %), lipids (11.1 mg/kg), etc., as reported by Vladimirova & Georgiyants (2014) and Velichkova (2019). Traditionally, L. minor is used as an antiscorbutic, diuretic depurative, and is also effective during colds, according to Al-Snai (2019).…”