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Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail

This study investigated the levels of six different heavy metals (Zn, Cu) which are essential and toxic metal ( Cd, Cr , Pb, As ) in three types of Malaysian grown l e a f y vegetables including leaves and stems of water spinach (Ipomoea aquatica), mustard green (Brassica juncea) and spinach (Spinac...

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Main Author: Ismail, Norihayani
Format: Thesis
Language:English
Published: 2009
Online Access:https://ir.uitm.edu.my/id/eprint/103404/1/103404.pdf
https://ir.uitm.edu.my/id/eprint/103404/
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spelling my.uitm.ir.1034042024-09-28T16:05:54Z https://ir.uitm.edu.my/id/eprint/103404/ Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail Ismail, Norihayani This study investigated the levels of six different heavy metals (Zn, Cu) which are essential and toxic metal ( Cd, Cr , Pb, As ) in three types of Malaysian grown l e a f y vegetables including leaves and stems of water spinach (Ipomoea aquatica), mustard green (Brassica juncea) and spinach (Spinacia oleracea). Heavy metals were extracted from vegetables using dry ashing method. I C P -OES was used to evaluate the levels of these metals in the vegetables. The results showed the following ranges (mg/kg): 0.053- 0.058, 0.101-2.125, 27.786-83.306, 4.391-8.486 for cadmium, chromium, zinc and copper respectively. The highest mean concentration of Zn, Cu, Cr, Cd were detected in leaves of mustard greens, stems of water spinach, stems of mustard green and leaves of spinach. Heavy metals were the highest in leaves of mustard green compared to other type of vegetables. The study showed that heavy metals content in various parts of vegetables studied were still below the permissible levels b y Malaysian Food Act 1983 (Act 281) & Regulations. Overall, this study indicates Malaysian grown leafy vegetables especially water spinach, spinach and mustard green obtained from Selayang market was safe to be consumed in terms of heavy metals. 2009 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/103404/1/103404.pdf Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail. (2009) Degree thesis, thesis, Universiti Teknologi MARA (UiTM). <http://terminalib.uitm.edu.my/103404.pdf>
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
description This study investigated the levels of six different heavy metals (Zn, Cu) which are essential and toxic metal ( Cd, Cr , Pb, As ) in three types of Malaysian grown l e a f y vegetables including leaves and stems of water spinach (Ipomoea aquatica), mustard green (Brassica juncea) and spinach (Spinacia oleracea). Heavy metals were extracted from vegetables using dry ashing method. I C P -OES was used to evaluate the levels of these metals in the vegetables. The results showed the following ranges (mg/kg): 0.053- 0.058, 0.101-2.125, 27.786-83.306, 4.391-8.486 for cadmium, chromium, zinc and copper respectively. The highest mean concentration of Zn, Cu, Cr, Cd were detected in leaves of mustard greens, stems of water spinach, stems of mustard green and leaves of spinach. Heavy metals were the highest in leaves of mustard green compared to other type of vegetables. The study showed that heavy metals content in various parts of vegetables studied were still below the permissible levels b y Malaysian Food Act 1983 (Act 281) & Regulations. Overall, this study indicates Malaysian grown leafy vegetables especially water spinach, spinach and mustard green obtained from Selayang market was safe to be consumed in terms of heavy metals.
format Thesis
author Ismail, Norihayani
spellingShingle Ismail, Norihayani
Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail
author_facet Ismail, Norihayani
author_sort Ismail, Norihayani
title Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail
title_short Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail
title_full Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail
title_fullStr Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail
title_full_unstemmed Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail
title_sort heavy metal determination in selected malaysian in grown leafy vegetables / norihayani ismail
publishDate 2009
url https://ir.uitm.edu.my/id/eprint/103404/1/103404.pdf
https://ir.uitm.edu.my/id/eprint/103404/
_version_ 1811598317262471168
score 13.211869

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