Evaluation of in Vitro Reducing Effect of Several Vegetable Extracts on the Digestive Bioavailability of Heavy Metals

Abstract

The study aimed at assessing the in vitro digestive bioavailability of heavy metals in the presence of plant extracts under simulated digestive system conditions. The complexing ability of aqueous herbal extracts of Crataegus sp., Tilia spp., Rosa canina, Vaccinium myrtillus, Geranium robertianum, Mentha piperita, Cynara cardunculus subsp. Scolymus, Plantago sp., and Coriandrum sativum was researched on Cu+2, Cd+2, Ni+2, Pb+2 and Hg+2 cations. The quantitative determination of the fraction of free metal left, available for absorption, was achieved by atomic absorption spectroscopy (AAS) or potentiometry using an ion-selective electrode (ISE).

The Effect of Heavy Metals (Copper and Cadmium) on the Germination of Bell Pepper Seeds (Capsicum annuumL. var. Dariana Bac)

“…Among these, heavy metals (HM) are [4] classified as main soil contaminants [23]. In the recent years, contamination of agricultural land by HM has increased due to anthropogenic activities [23], and as they are easily absorbed by plants [23,24], can pose a serious threat to human health. However certain HM, such as iron (Fe), copper (Cu), manganese (Mn), zinc (Zn), nickel (Ni), and molybdenum (Mo) are considered to be micronutrients for plants, but also minerals required in the diet of humans and animals [23][24][25].…”

“…In the recent years, contamination of agricultural land by HM has increased due to anthropogenic activities [23], and as they are easily absorbed by plants [23,24], can pose a serious threat to human health. However certain HM, such as iron (Fe), copper (Cu), manganese (Mn), zinc (Zn), nickel (Ni), and molybdenum (Mo) are considered to be micronutrients for plants, but also minerals required in the diet of humans and animals [23][24][25]. On the other hand, some of the HM, such as cadmium (Cd), mercury (Hg), lead (Pb), arsenic (As), tin (Sn), silver (Ag), bismuth (Bi), chromium (Cr), are highly toxic to biological systems and they accumulate easily in living organisms [23].…”

“…It is known the benefits of copper (Cu) which is an essential element for plant growth and development [4,[23][24][25][26]. The largest source of Cu from the soil comes from industrial and agricultural waste [27].…”

Synthesis and Structural Characterization of Cobalt Nanostructures in AAO Membranes

“…It was established that the pores ordering and structure can be controlled by the nature of the electrolyte, the voltage applied during the anodization and electrolyte temperature. Due to their properties and possible advanced applications, metallic nanostructures attracted the interest of many researchers [14][15][16][17][18][19][20][21][22][23][24][25][26]. If some of the researchers have focused on their magnetic properties [27][28][29][30][31], others have studied the mechanism of formation of their formation [30][31][32][33][34][35][36].…”

Design and Study of Electrochemical Sensors Based on Polymer Inclusion Membranes Containing Polyoxometalates

“…The literature on the use of electrochemical sensors with specific response in the analysis of pharmaceuticals is particularly recent [9,10]. Selective membrane sensors based on electro-active material embedded in vinyl polychloride (PVC) matrix have the advantage of design, economy of active material and long service life [11,12].…”