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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Bibliographic Details
Main Author:	Ismail, Norihayani
Format:	Thesis
Language:	English
Published:	2009
Online Access:	https://ir.uitm.edu.my/id/eprint/103404/1/103404.pdf
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id	my-uitm-ir.103404
record_format	uketd_dc
spelling	my-uitm-ir.1034042024-09-28T16:05:54Z Heavy metal determination in selected Malaysian in grown leafy vegetables / Norihayani Ismail 2009 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 https://ir.uitm.edu.my/id/eprint/103404/ https://ir.uitm.edu.my/id/eprint/103404/1/103404.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Applied Sciences Nesamalar
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Nesamalar
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
qualification_level	Bachelor degree
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
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Applied Sciences
publishDate	2009
url	https://ir.uitm.edu.my/id/eprint/103404/1/103404.pdf
_version_	1811769255608188928

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

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