Distribution of trace elements in edible green seaweed (Caulerpa racemosa)

Industrialisation has resulted in large-scale production of anthropogenic pollutants, particularly heavy metals. The process of removal of heavy metals by seaweed, a marine plant species is called biosorption. This helps in improving water quality but might lead to seaweed toxicity as many heavy...

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Main Authors:	Mohd Yusuff, Mohd Haikal, Mohamed Rehan, Aisyah, Kamarudin, Kamarul Rahim
Format:	Conference or Workshop Item
Language:	English
Published:	2008
Subjects:	Q Science (General)
Online Access:	http://irep.iium.edu.my/12817/ http://irep.iium.edu.my/12817/ http://irep.iium.edu.my/12817/1/Green_seaweed.pdf

id	iium-12817
recordtype	eprints
spelling	iium-128172013-09-20T07:31:32Z http://irep.iium.edu.my/12817/ Distribution of trace elements in edible green seaweed (Caulerpa racemosa) Mohd Yusuff, Mohd Haikal Mohamed Rehan, Aisyah Kamarudin, Kamarul Rahim Q Science (General) Industrialisation has resulted in large-scale production of anthropogenic pollutants, particularly heavy metals. The process of removal of heavy metals by seaweed, a marine plant species is called biosorption. This helps in improving water quality but might lead to seaweed toxicity as many heavy metals are toxic even in trace amounts. This study aims to analyse the biosorption of metals by edible marine green algae (Caulerpa racemosa). The seaweed species was collected from Sungai Kilim, an area of brackish water near the Langkawi island coastline. Heavy metals analysis was performed by graphite furnace atomic absorption spectrophotometry (GFAAS) to determine the range of heavy metal adsorption. Seaweed samples were treated and prepared with nitric acid 70% and diluted with distilled water (1:1000). Meanwhile, filtered and acidified seawater sample was treated with methyl isobutyl ketone (MIBK) solution followed by 1% ammonium-pyrrolidine dithiocarbonate (APDC) solution. The concentrations of Cu, Fe, Cr and Cd in both the seaweed samples and the seawater samples were determined. The overall concentration was found to range between 0.1μg/L to 7μg/L in Caulerpa racemosa. The results were also compared with the elemental distribution in seawater and with the interim proposed standard for the conservation of marine aquatic recourses. Results showed that concentration of metals in seaweed are higher than seawater due to the persistent biosorption of toxic metal in seaweed. The range was between 0.02μg/L to 0.1μg/L. Further study will be carried out to compare and verify the level of heavy metal elements analysed and to investigate any possible heavy metal contamination in the samples. In future, the data from this study will be compared with the physical analysis of water in Sungai Kilim for the overall analysis of trace metal distribution in C. racemosa. 2008-06-13 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/12817/1/Green_seaweed.pdf Mohd Yusuff, Mohd Haikal and Mohamed Rehan, Aisyah and Kamarudin, Kamarul Rahim (2008) Distribution of trace elements in edible green seaweed (Caulerpa racemosa). In: 2nd International Conference on Advancement of Science and Technology (iCAST), 13-15 June 2008, Kulliyyah of Science, International Islamic University Malaysia (IIUM), Kuantan, Pahang Darul Makmur, Malaysia. http://www.iium.edu.my/icast/2008/oral%20and%20poster.htm
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Mohd Yusuff, Mohd Haikal Mohamed Rehan, Aisyah Kamarudin, Kamarul Rahim Distribution of trace elements in edible green seaweed (Caulerpa racemosa)
description	Industrialisation has resulted in large-scale production of anthropogenic pollutants, particularly heavy metals. The process of removal of heavy metals by seaweed, a marine plant species is called biosorption. This helps in improving water quality but might lead to seaweed toxicity as many heavy metals are toxic even in trace amounts. This study aims to analyse the biosorption of metals by edible marine green algae (Caulerpa racemosa). The seaweed species was collected from Sungai Kilim, an area of brackish water near the Langkawi island coastline. Heavy metals analysis was performed by graphite furnace atomic absorption spectrophotometry (GFAAS) to determine the range of heavy metal adsorption. Seaweed samples were treated and prepared with nitric acid 70% and diluted with distilled water (1:1000). Meanwhile, filtered and acidified seawater sample was treated with methyl isobutyl ketone (MIBK) solution followed by 1% ammonium-pyrrolidine dithiocarbonate (APDC) solution. The concentrations of Cu, Fe, Cr and Cd in both the seaweed samples and the seawater samples were determined. The overall concentration was found to range between 0.1μg/L to 7μg/L in Caulerpa racemosa. The results were also compared with the elemental distribution in seawater and with the interim proposed standard for the conservation of marine aquatic recourses. Results showed that concentration of metals in seaweed are higher than seawater due to the persistent biosorption of toxic metal in seaweed. The range was between 0.02μg/L to 0.1μg/L. Further study will be carried out to compare and verify the level of heavy metal elements analysed and to investigate any possible heavy metal contamination in the samples. In future, the data from this study will be compared with the physical analysis of water in Sungai Kilim for the overall analysis of trace metal distribution in C. racemosa.
format	Conference or Workshop Item
author	Mohd Yusuff, Mohd Haikal Mohamed Rehan, Aisyah Kamarudin, Kamarul Rahim
author_facet	Mohd Yusuff, Mohd Haikal Mohamed Rehan, Aisyah Kamarudin, Kamarul Rahim
author_sort	Mohd Yusuff, Mohd Haikal
title	Distribution of trace elements in edible green seaweed (Caulerpa racemosa)
title_short	Distribution of trace elements in edible green seaweed (Caulerpa racemosa)
title_full	Distribution of trace elements in edible green seaweed (Caulerpa racemosa)
title_fullStr	Distribution of trace elements in edible green seaweed (Caulerpa racemosa)
title_full_unstemmed	Distribution of trace elements in edible green seaweed (Caulerpa racemosa)
title_sort	distribution of trace elements in edible green seaweed (caulerpa racemosa)
publishDate	2008
url	http://irep.iium.edu.my/12817/ http://irep.iium.edu.my/12817/ http://irep.iium.edu.my/12817/1/Green_seaweed.pdf
first_indexed	2023-09-18T20:21:58Z
last_indexed	2023-09-18T20:21:58Z
_version_	1777408166391185408

Distribution of trace elements in edible green seaweed (Caulerpa racemosa)

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