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[ Article ] TOXICOLOGICAL STUDY OF VERNONIA AMYGDALINA ON A SOIL CONTAMINATED WITH DIFFERENT CONCENTRATIONS OF LEAD AND CADMIUM AND ITS INTERACTION IN THE TRANSFER OF ESSENTIAL TRACE MINERALS

Date de soumission: 04-02-2021
Année de Publication: 2020
Entité/Laboratoire
Document type : Article
Discipline(s) :
Titre TOXICOLOGICAL STUDY OF VERNONIA AMYGDALINA ON A SOIL CONTAMINATED WITH DIFFERENT CONCENTRATIONS OF LEAD AND CADMIUM AND ITS INTERACTION IN THE TRANSFER OF ESSENTIAL TRACE MINERALS
Auteurs DEGUENON Adjouavi Yvette [1], ELEGBEDE Bernardin Manou [2], AHADJI-DABLA Mensah Koffi [3], GNANDI Kissao [4], KETOH Koffivi Guillaume [5], EDORH Aléodjrodo Patrick [6],
Journal: International Journal of Science Academic Research
Catégorie Journal: Internationale
Impact factor: 4.791
Volume Journal: 1
DOI:
Resume Vernonia amygdalina is a vegetable widely used in nutrition and phytotherapy. Its toxicological quality poses real concerns for its use. Greenhouse cultivation is carried out with twelve batches of six vegetative vases in order to evaluate the soil-plant transfer. Atomic Absorption Spectrophotometry analysis allowed an investigation of the lead, cadmium and bivalent iron, magnesium, calcium, manganese, zinc and copper contents of the different plant organs. Lead and cadmium concentrations vary according to the concentration of the two metals in the crop soil. The lowest concentrations of lead and cadmium are found in the leaves, that are the most consumed part of the plant. In the leaves, cadmium (0.937-33.004ppm); lead (0.945-31.701ppm). Lead concentration is positively correlated with the trace elements iron (r = 0.465), manganese (r = 0.342), magnesium (r = 0.349); there is a weak correlation between cadmium and trace elements in leaves. In the stem, cadmium (0.145- 96.680ppm); lead (0.050-288.364ppm). Lead and cadmium correlate respectively with zinc (r = 0.552; r = 0.547), manganese (r = 0.741; r = 0.708); iron (r = 0.432; r = 0.452). There is a strong negative correlation between cadmium-calcium r = -0.341. At root level cadmium (0.572- 237.043); lead (2.594-151.358ppm). The following correlations can be observed: cadmium-copper r = 0.648; cadmium-zinc r = -0.379; cadmium-iron r = -0.412; lead-magnesium r = 0.369; lead-calcium r = 0.410. This study permits to orient the cultivation of this vegetable in order to guarantee its virtues and protect the consumers.
Mots clés Vernonia amygdalina, Lead, cadmium.
Pages 698 - 702
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