Concentration of copper, zinc, cadmium and lead in selected herbs / Nik Nabihah Hanim Nik Effendi
It is very obvious that herbs are sources that are used since many years ago until now. This is because herbs have many purpose such as in cooking, perfumes, disinfectant and most important is use as a natural medicine. In the current study, the concentration of some essentials and non-essentials...
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| Format: | Student Project |
| Language: | English |
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Faculty of Applied Sciences
2017
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| Online Access: | http://ir.uitm.edu.my/id/eprint/24166/ http://ir.uitm.edu.my/id/eprint/24166/1/PPb_NIK%20NABIHAH%20HANIM%20NIK%20EFFENDI%20AS%20C%2017_5.PDF |
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uitm-24166 |
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eprints |
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uitm-241662019-05-10T06:51:17Z http://ir.uitm.edu.my/id/eprint/24166/ Concentration of copper, zinc, cadmium and lead in selected herbs / Nik Nabihah Hanim Nik Effendi Nik Effendi, Nik Nabihah Hanim Organic chemistry Extraction (Chemistry) It is very obvious that herbs are sources that are used since many years ago until now. This is because herbs have many purpose such as in cooking, perfumes, disinfectant and most important is use as a natural medicine. In the current study, the concentration of some essentials and non-essentials heavy metals such as zinc (Zn), copper (Cu), lead (Pb) and cadmium (Cd) exist in selected herbs that were bought from the local markets were analysed using Atomic Absorption Spectroscopy (AAS) after using dry ashing as a treatment method. Selected herbs consist of Zingiber officinale (ginger), Curcuma tonga (turmeric) and Alpinia galangal (galangal). The concentration ranges for the heavy metals were found to be 0.221-0.442 mg/kg, 0.008-0.064 mg/kg, below detection limit (BDL)-0.136 mg/kg and 0.006-0.083 mg/kg for Zn, Cu, Pb and Cd respectively. Concentration for heavy metals analysed were below the permissible limit that recommended by Malaysian Food Regulation (1985). The Hazard Index (HI) for all heavy metals was found to have the value less than 1. HI value for Zingiber officinale, Curcuma tonga and Alpinia galangal were 2.02xl0-5, 6.85xl0-5 and 6.85xl0-5 respectively. Thus, the daily intake will not expose any risk to the consumers if the concentration of heavy metals is concerned and there is no non-carcinogenic risk from the digestion of these four metals individually. Faculty of Applied Sciences 2017 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/24166/1/PPb_NIK%20NABIHAH%20HANIM%20NIK%20EFFENDI%20AS%20C%2017_5.PDF Nik Effendi, Nik Nabihah Hanim (2017) Concentration of copper, zinc, cadmium and lead in selected herbs / Nik Nabihah Hanim Nik Effendi. [Student Project] (Unpublished) |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
Universiti Teknologi MARA |
| building |
UiTM Institutional Repository |
| collection |
Online Access |
| language |
English |
| topic |
Organic chemistry Extraction (Chemistry) |
| spellingShingle |
Organic chemistry Extraction (Chemistry) Nik Effendi, Nik Nabihah Hanim Concentration of copper, zinc, cadmium and lead in selected herbs / Nik Nabihah Hanim Nik Effendi |
| description |
It is very obvious that herbs are sources that are used since many years ago until
now. This is because herbs have many purpose such as in cooking, perfumes,
disinfectant and most important is use as a natural medicine. In the current study,
the concentration of some essentials and non-essentials heavy metals such as zinc
(Zn), copper (Cu), lead (Pb) and cadmium (Cd) exist in selected herbs that were
bought from the local markets were analysed using Atomic Absorption
Spectroscopy (AAS) after using dry ashing as a treatment method. Selected herbs
consist of Zingiber officinale (ginger), Curcuma tonga (turmeric) and Alpinia
galangal (galangal). The concentration ranges for the heavy metals were found to
be 0.221-0.442 mg/kg, 0.008-0.064 mg/kg, below detection limit (BDL)-0.136
mg/kg and 0.006-0.083 mg/kg for Zn, Cu, Pb and Cd respectively. Concentration
for heavy metals analysed were below the permissible limit that recommended by
Malaysian Food Regulation (1985). The Hazard Index (HI) for all heavy metals
was found to have the value less than 1. HI value for Zingiber officinale, Curcuma
tonga and Alpinia galangal were 2.02xl0-5, 6.85xl0-5 and 6.85xl0-5 respectively.
Thus, the daily intake will not expose any risk to the consumers if the
concentration of heavy metals is concerned and there is no non-carcinogenic risk
from the digestion of these four metals individually. |
| format |
Student Project |
| author |
Nik Effendi, Nik Nabihah Hanim |
| author_facet |
Nik Effendi, Nik Nabihah Hanim |
| author_sort |
Nik Effendi, Nik Nabihah Hanim |
| title |
Concentration of copper, zinc, cadmium and
lead in selected herbs / Nik Nabihah Hanim Nik Effendi |
| title_short |
Concentration of copper, zinc, cadmium and
lead in selected herbs / Nik Nabihah Hanim Nik Effendi |
| title_full |
Concentration of copper, zinc, cadmium and
lead in selected herbs / Nik Nabihah Hanim Nik Effendi |
| title_fullStr |
Concentration of copper, zinc, cadmium and
lead in selected herbs / Nik Nabihah Hanim Nik Effendi |
| title_full_unstemmed |
Concentration of copper, zinc, cadmium and
lead in selected herbs / Nik Nabihah Hanim Nik Effendi |
| title_sort |
concentration of copper, zinc, cadmium and
lead in selected herbs / nik nabihah hanim nik effendi |
| publisher |
Faculty of Applied Sciences |
| publishDate |
2017 |
| url |
http://ir.uitm.edu.my/id/eprint/24166/ http://ir.uitm.edu.my/id/eprint/24166/1/PPb_NIK%20NABIHAH%20HANIM%20NIK%20EFFENDI%20AS%20C%2017_5.PDF |
| first_indexed |
2023-09-18T23:12:01Z |
| last_indexed |
2023-09-18T23:12:01Z |
| _version_ |
1777418865790156800 |