The heavy metal contents of some selected medicinal plants sampled from different geographical locations

Annan, Kofi; Dickson, Rita A.; Amponsah, Isaac Kingsley; Nooni, Isaac Kwesi

doi:10.4103/0974-8490.110539

Cited by 101 publications

(61 citation statements)

References 7 publications

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“…(Rutacea) has antioxidant activities (Fakhfakh et al, 2012 El-Rjoob et al, 2008;Srividhya et al, 2011;Karayil et al, 2011;Princewill Ogbonna and Princewill Ogbonna, 2011;Subramanian et al, 2012;Annan et al, 2013;Baye and Hymete, 2013;Nema et al, 2014).…”

Section: R Chalepensismentioning

confidence: 96%

Assessment of Heavy Metals in Different Parts of Ruta chalepensis L. Rutaceae Medicinal Plant and Soil Samples Collected from Three Selected Zones in Jordan

Massadeh

El-Rjoob

Omari

2016

Soil and Sediment Contamination: An International Journal

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Different parts of Ruta chalepensis L. medicinal plant and soil samples collected from three zones in Jordan (Irbid, Al-Mafraq and Ma'an) were analyzed for determination of Pb, Cu, Zn, Cd, Ni and Fe by atomic absorption spectrometry. Heavy metal levels in washed and unwashed parts of R. chalepensis were evaluated and compared statistically. Results show that there was a variation in heavy metal concentrations related to washed and unwashed parts of R. chalepensis in the three zones. Moreover, Pb, Zn, Cu, Cd, and Ni were concentrated in the following order:Two standard reference materials of plant (SRM 1790a; spinach, CRM 281; rye grass) and a standard reference material of soil (GBW 07406) were examined to validate the method used.Results indicate that high recoveries were obtained. Significant variation existed in metal content in different parts of Ruta chalepensis L. for the various locations (P ≤ 0.05).

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Section: R Chalepensismentioning

confidence: 96%

Assessment of Heavy Metals in Different Parts of Ruta chalepensis L. Rutaceae Medicinal Plant and Soil Samples Collected from Three Selected Zones in Jordan

Massadeh

El-Rjoob

Omari

2016

Soil and Sediment Contamination: An International Journal

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“…Medicinal plants are the essential sources of active ingredients in these systems of medicines for the preparation of various drugs. The medicinal plants also account for a major portion of the therapeutic preparations in the modern pharmaceutical industries [1]. In the present century, market for medicinal plants has increased tremendously to meet the needs of the patients all over the world.…”

Section: Introductionmentioning

confidence: 99%

Chromium Accumulation in Medicinal Plants Growing Naturally on Tannery Contaminated and Non-contaminated Soils

Jaison

Muthukumar

2016

Biol Trace Elem Res

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Herbal preparations used to treat human ailments globally can be contaminated with various heavy metals (HMs) originating from the raw materials or from the manufacturing processes. Therefore, we assessed 22 medicinal plants growing naturally on tannery pollutant contaminated (Site-C) and non-contaminated (Site-NC) sites for their ability to accumulate chromium (Cr). The Cr contents in soil and various plant parts were estimated using an atomic absorption spectrophotometer. Translocation and bioconcentration factors were calculated. The soil at Site-C had 27-fold higher concentration of total Cr than at Site-NC. Chromium accumulation is reported for the first time in 50 % of the medicinal plants examined and varied significantly among the sites. Shoots of Ricinus communis and Amaranthus viridis had maximum concentrations of Cr at Site-C, whereas in Site-NC, none of the plants had Cr accumulation >30 ppm. Ricinus communis, Amaranthus viridis, and Amaranthus spinosus had translocation factor (TF) greater than the one in the Site-C and Lantana camara had TF >1 in Site-NC. The bioconcentration factor (BCF) was >1 only for Ricinus communis at both the sites. The majority of the medicinal plants at Site-NC had Cr content exceeding the permissible limit of 2 ppm suggested for herbal raw material. The results of the study clearly emphasize the need for screening plants of therapeutic value for the presence of HMs even when collected from non-contaminated soils. Moreover, proportional allocation of Cr in different plant parts provided an insight on the safety of these parts when specifically used in herbal preparations.

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“…No literature reported on other studied medicinal plants. However, medicinal plants can be contaminated with various levels of Al based on their geographical distribution particularly based on soil composition (IPCS, 1997, WHO, 2003b that reflects the reported level of Al (<0.30-110.47 µgAl/g) in medicinal plants collected from different parts of Gana (Annan et al, 2013).…”

Section: Aluminum (Al)mentioning

confidence: 99%

Essential and Non-essential heavy metal contents in some marketed medicinal herbs of UAE

Nessa¹,

Khan²

2018

Asian J Pharm Pharmacol

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Objectives: This study aimed to determine essential and non-essential heavy metal contents as cadmium (Cd), lead (Pb), iron (Fe), arsenic (As), aluminum (Al), zinc (Zn), nickel (Ni) and copper (Cu), from marketed medicinal herbs of UAE and to investigate whether or not they pose a risk of heavy metal toxicity in regards to World Health Organization (WHO) and national limits.Nine samples of medicinal herbs as Linn., Materials and methods:Artemisia absinthium Adhatoda vasica Melissa parviflora Achillea millefolium Bacopa monnieri Gymnema sylvestre Nees., Benth., , , , Onosma bracteatum, Corchorus depressus Viola odorata Linn. and were collected from local herbal stores of UAE and sample solution was prepared by a dry ashing digestion procedure used for the quantification of Al, Zn, Cu, Cd, Pb, Ni and Fe. For As determination, the samples were prepared by wet digestion procedure. Calibration curves were prepared using different concentration ranges for the metals and the solutions were analyzed either by Graphite Furnace or Flame Atomic Absorption Spectrometer. Method validation was performed by evaluating metal recovery studies . Results: The mean recoveries were from 82.20 to 98.92%. The studied samples all exhibited a positive response for eight essential and non-essential heavy metals, and contained about 1.01-3.63 µg Pb, 0.126-0.849 µg As, 0.46-1.48 µg Ni, 0.073-0.591 µg Cd, µg Fe respectively. The results were compared with the established WHO and national permissible limits set for heavy metals in medicinal plants and found within limits.The studied nine medicinal herbs contained tolerable levels of essential Conclusion: and non-essential heavy metals, and were safe to consume and further processing.

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The heavy metal contents of some selected medicinal plants sampled from different geographical locations

Cited by 101 publications

References 7 publications

Assessment of Heavy Metals in Different Parts of Ruta chalepensis L. Rutaceae Medicinal Plant and Soil Samples Collected from Three Selected Zones in Jordan

Assessment of Heavy Metals in Different Parts of Ruta chalepensis L. Rutaceae Medicinal Plant and Soil Samples Collected from Three Selected Zones in Jordan

Chromium Accumulation in Medicinal Plants Growing Naturally on Tannery Contaminated and Non-contaminated Soils

Essential and Non-essential heavy metal contents in some marketed medicinal herbs of UAE

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