Investigation of Some Metals in Leaves and Leaf Extracts of Lippia javanica: Its Daily Intake
Joint Authors
Ncube, France
Kanda, Artwell
Florence, Kunsamala
Source
Journal of Environmental and Public Health
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-11
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Consumption of plant extracts can be a source of essential elements or a route of human exposure to toxicants.
Metal concentrations in leaves, leaf brew, and infusion of L.
javanica collected from five sites were determined by atomic absorption spectrometry after acid and aqueous extraction.
Estimated daily intakes of metals in extracts were compared with recommended dietary allowances.
Total metal concentrations in leaves varied with sampling sites (p<0.05): Mn > Fe > Cu > Cr > Pb for sites SS2–SS5.
The highest metal concentrations in leaves were recorded for SS3 (Cu: 15.32±4.53 and Mn: 734.99±105.49), SS5 (Fe: 210.27±17.17), SS2 (Pb: 3.11±0.21), and SS4 (Cr: 4.40±0.75 mg/kg).
Leaf infusion appeared to release higher Cu and Mn concentrations in leaves across sites (Cu: 21.65; Mn: 28.01%) than leaf brew (Cu: 11.95; Mn: 19.74%).
Lead was not detected in leaf extracts.
Estimated dietary intakes of Cr, Cu, Fe, and Mn were below recommended dietary allowances.
A 250 ml cup of leaf infusion contributed 0.30–1.18% Cu and 4.46–13.83% Mn to the recommended dietary allowances of these elements per day.
Lead did not pose any potential hazard when consumed in tea beverage made from brew and infusion of leaves of L.
javanica.
American Psychological Association (APA)
Kanda, Artwell& Ncube, France& Florence, Kunsamala. 2017. Investigation of Some Metals in Leaves and Leaf Extracts of Lippia javanica: Its Daily Intake. Journal of Environmental and Public Health،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1175515
Modern Language Association (MLA)
Kanda, Artwell…[et al.]. Investigation of Some Metals in Leaves and Leaf Extracts of Lippia javanica: Its Daily Intake. Journal of Environmental and Public Health No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1175515
American Medical Association (AMA)
Kanda, Artwell& Ncube, France& Florence, Kunsamala. Investigation of Some Metals in Leaves and Leaf Extracts of Lippia javanica: Its Daily Intake. Journal of Environmental and Public Health. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1175515
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1175515