Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia
The yield and quality of agar from Gracilaria species collected from distinct natural habitats (mangrove swamp, rocky shore, sandy mudflat) along the west coast of Peninsular Malaysia were evaluated in this study. The agar content was found to be significantly higher in G. changii and G. edulis grow...
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| Format: | Article |
| Language: | English |
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Elsevier
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/54987/ http://psasir.upm.edu.my/id/eprint/54987/1/Agar%20properties%20of%20Gracilaria%20species%20%28Gracilariaceae%2C%20Rhodophyta%29%20collected%20from%20.pdf |
| _version_ | 1848852684463931392 |
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| author | Lee, Wei Kang Lim, Phaik Eem Phang, Siew Moi Namasivayam, Parameswari Ho, Chai Ling |
| author_facet | Lee, Wei Kang Lim, Phaik Eem Phang, Siew Moi Namasivayam, Parameswari Ho, Chai Ling |
| author_sort | Lee, Wei Kang |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The yield and quality of agar from Gracilaria species collected from distinct natural habitats (mangrove swamp, rocky shore, sandy mudflat) along the west coast of Peninsular Malaysia were evaluated in this study. The agar content was found to be significantly higher in G. changii and G. edulis growing in the mangrove swamp, while the lowest agar content was recorded for G. changii and G. edulis collected from the sandy mudflat. Higher agar gel strength was obtained from the three Gracilaria species collected from the mangrove swamp compared to those that live in the sandy mudflat and rocky shore. The intraspecific variations found in gelling temperature were well correlated with the trend of changes in agar gel strength, except for G. changii collected from the sandy mudflat and rocky shore. The intraspecific and interspecific variations of agar melting temperature did not show a consistent trend for all Gracilaria species tested. The agars of Gracilaria spp. collected from the rocky shore showed a significantly higher gel syneresis while the lowest gel syneresis was recorded for the agars of samples collected from the mangrove swamp, except for the agars of G. salicornia from different habitats which showed no difference. In conclusion, the mangrove swamp is a natural habitat which produces Gracilaria with good agar properties, in terms of agar yield, gel strength and gel hysteresis, thus it can be considered as a potential site for seaweed farming and mariculture for the agar industry in Malaysia. |
| first_indexed | 2025-11-15T10:41:59Z |
| format | Article |
| id | upm-54987 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:41:59Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-549872019-10-22T01:33:36Z http://psasir.upm.edu.my/id/eprint/54987/ Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia Lee, Wei Kang Lim, Phaik Eem Phang, Siew Moi Namasivayam, Parameswari Ho, Chai Ling The yield and quality of agar from Gracilaria species collected from distinct natural habitats (mangrove swamp, rocky shore, sandy mudflat) along the west coast of Peninsular Malaysia were evaluated in this study. The agar content was found to be significantly higher in G. changii and G. edulis growing in the mangrove swamp, while the lowest agar content was recorded for G. changii and G. edulis collected from the sandy mudflat. Higher agar gel strength was obtained from the three Gracilaria species collected from the mangrove swamp compared to those that live in the sandy mudflat and rocky shore. The intraspecific variations found in gelling temperature were well correlated with the trend of changes in agar gel strength, except for G. changii collected from the sandy mudflat and rocky shore. The intraspecific and interspecific variations of agar melting temperature did not show a consistent trend for all Gracilaria species tested. The agars of Gracilaria spp. collected from the rocky shore showed a significantly higher gel syneresis while the lowest gel syneresis was recorded for the agars of samples collected from the mangrove swamp, except for the agars of G. salicornia from different habitats which showed no difference. In conclusion, the mangrove swamp is a natural habitat which produces Gracilaria with good agar properties, in terms of agar yield, gel strength and gel hysteresis, thus it can be considered as a potential site for seaweed farming and mariculture for the agar industry in Malaysia. Elsevier 2016-09 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54987/1/Agar%20properties%20of%20Gracilaria%20species%20%28Gracilariaceae%2C%20Rhodophyta%29%20collected%20from%20.pdf Lee, Wei Kang and Lim, Phaik Eem and Phang, Siew Moi and Namasivayam, Parameswari and Ho, Chai Ling (2016) Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia. Regional Studies in Marine Science, 7. pp. 123-128. ISSN 2352-4855 10.1016/j.rsma.2016.06.001 |
| spellingShingle | Lee, Wei Kang Lim, Phaik Eem Phang, Siew Moi Namasivayam, Parameswari Ho, Chai Ling Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia |
| title | Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia |
| title_full | Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia |
| title_fullStr | Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia |
| title_full_unstemmed | Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia |
| title_short | Agar properties of Gracilaria species (Gracilariaceae, Rhodophyta) collected from different natural habitats in Malaysia |
| title_sort | agar properties of gracilaria species (gracilariaceae, rhodophyta) collected from different natural habitats in malaysia |
| url | http://psasir.upm.edu.my/id/eprint/54987/ http://psasir.upm.edu.my/id/eprint/54987/ http://psasir.upm.edu.my/id/eprint/54987/1/Agar%20properties%20of%20Gracilaria%20species%20%28Gracilariaceae%2C%20Rhodophyta%29%20collected%20from%20.pdf |