A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp.
The aquaculture industry commonly makes use of microalgae as live feed. Chaetoceros sp., a diatom, and Nannochloropsis sp., a unicellular green microalga, have both been reported to contain a substantial amount of polyunsaturated fatty acids and carotenoids. Their potential as natural sources of ant...
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| Format: | Article |
| Language: | English |
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Canadian Center of Science and Education
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/12671/ http://psasir.upm.edu.my/id/eprint/12671/1/A%20comparison%20of%20the%20antioxidant%20properties%20and%20total%20phenolic%20content%20in%20a%20Diatom.pdf |
| _version_ | 1848841898232381440 |
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| author | Goh, Su Hua Md Yusoff, Fatimah Loh, Su Peng |
| author_facet | Goh, Su Hua Md Yusoff, Fatimah Loh, Su Peng |
| author_sort | Goh, Su Hua |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The aquaculture industry commonly makes use of microalgae as live feed. Chaetoceros sp., a diatom, and Nannochloropsis sp., a unicellular green microalga, have both been reported to contain a substantial amount of polyunsaturated fatty acids and carotenoids. Their potential as natural sources of antioxidants has gained recent attention. This study focuses on determining the antioxidant properties of the different solvent extracts, namely hexane, dichloromethane, chloroform and methanol, from both microalgae. The evaluation of antioxidant capacities was done by Folin-ciocalteu, 1,1-diphenyl-2-picrylhydrazyl radical-scavenging, metal chelating, nitro-blue tetrazolium reduction and ferric-reducing antioxidant power assay. Results showed that the non-polar solvent extracts from the diatom were highest in antioxidant power, whereas both polar and non-polar solvent extracts of green microalgae showed good antioxidant potential. In general, Chaetoceros sp. had higher antioxidant capacities than Nannochloropsis sp. This study suggests that different solvent extracts contain different potential antioxidant compounds able to scavenge different types of free radicals.
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| first_indexed | 2025-11-15T07:50:33Z |
| format | Article |
| id | upm-12671 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:50:33Z |
| publishDate | 2010 |
| publisher | Canadian Center of Science and Education |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-126712015-11-27T08:25:31Z http://psasir.upm.edu.my/id/eprint/12671/ A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp. Goh, Su Hua Md Yusoff, Fatimah Loh, Su Peng The aquaculture industry commonly makes use of microalgae as live feed. Chaetoceros sp., a diatom, and Nannochloropsis sp., a unicellular green microalga, have both been reported to contain a substantial amount of polyunsaturated fatty acids and carotenoids. Their potential as natural sources of antioxidants has gained recent attention. This study focuses on determining the antioxidant properties of the different solvent extracts, namely hexane, dichloromethane, chloroform and methanol, from both microalgae. The evaluation of antioxidant capacities was done by Folin-ciocalteu, 1,1-diphenyl-2-picrylhydrazyl radical-scavenging, metal chelating, nitro-blue tetrazolium reduction and ferric-reducing antioxidant power assay. Results showed that the non-polar solvent extracts from the diatom were highest in antioxidant power, whereas both polar and non-polar solvent extracts of green microalgae showed good antioxidant potential. In general, Chaetoceros sp. had higher antioxidant capacities than Nannochloropsis sp. This study suggests that different solvent extracts contain different potential antioxidant compounds able to scavenge different types of free radicals. Canadian Center of Science and Education 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/12671/1/A%20comparison%20of%20the%20antioxidant%20properties%20and%20total%20phenolic%20content%20in%20a%20Diatom.pdf Goh, Su Hua and Md Yusoff, Fatimah and Loh, Su Peng (2010) A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp. Journal of Agricultural Science, 2 (3 ). pp. 123-130. ISSN 916-9752; ESSN: 1916-9760 http://www.ccsenet.org/journal/index.php/jas/article/view/5372 10.5539/jas.v2n3p123 |
| spellingShingle | Goh, Su Hua Md Yusoff, Fatimah Loh, Su Peng A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp. |
| title | A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp. |
| title_full | A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp. |
| title_fullStr | A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp. |
| title_full_unstemmed | A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp. |
| title_short | A comparison of the antioxidant properties and total phenolic content in a Diatom, Chaetoceros sp. and a green microalga, Nannochloropsis sp. |
| title_sort | comparison of the antioxidant properties and total phenolic content in a diatom, chaetoceros sp. and a green microalga, nannochloropsis sp. |
| url | http://psasir.upm.edu.my/id/eprint/12671/ http://psasir.upm.edu.my/id/eprint/12671/ http://psasir.upm.edu.my/id/eprint/12671/ http://psasir.upm.edu.my/id/eprint/12671/1/A%20comparison%20of%20the%20antioxidant%20properties%20and%20total%20phenolic%20content%20in%20a%20Diatom.pdf |