Carotenoid composition and antioxidant potential of Eucheuma denticulatum, Sargassum polycystum and Caulerpa lentillifera

Balasubramaniam, V., June Chelyn, L., Vimala, S., Mohd Fairulnizal, M.N., Brownlee, Iain and Amin, I. (2020) Carotenoid composition and antioxidant potential of Eucheuma denticulatum, Sargassum polycystum and Caulerpa lentillifera. Heliyon, 6 (8). e04654. ISSN 2405-8440

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Official URL: https://doi.org/10.1016/j.heliyon.2020.e04654

Abstract

Three species of Malaysian edible seaweed (Eucheuma denticulatum, Sargassum polycystum and Caulerpa lentillifera) were analyzed for their carotenoid composition using a combination of high-performance thin layer chromatography (HPTLC) and ultra-high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UHPLC-ESI-MS/MS), while the antioxidant capacities were determined by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and oxygen radical absorbance capacity (ORAC) assays. The HPTLC analysis exhibited a distinct carotenoid pattern among the three seaweed groups. The UHPLC-ESI-MS/MS analysis showed fucoxanthin as the major carotenoid present in S. polycystum while lutein and zeaxanthin in E. denticulatum. For C. lentillifera, β-carotene and canthaxanthin were the major carotenoids. Some of the carotenoids, such as rubixanthin, dinoxanthin, diatoxanthin and antheraxanthin, were also tentatively detected in E. denticulatum and S. polycystum. For antioxidant activity, S. polycystum (20 %) and E. denticulatum (1128 μmol TE/g) showed the highest activity in the DPPH and ORAC assays, respectively. The findings suggest the three edible varieties of seaweeds may provide a good dietary source with a potential to reduce antioxidative stress.

Item Type: Article
Uncontrolled Keywords: Food science, Food technology, Food analysis, Nutrition, Caulerpa lentillifera, Sargassum polycystum, Orbitrap, LC-MS/MS, Carotenoid, Eucheuma denticulatum, Antioxidant
Subjects: B400 Nutrition
C500 Microbiology
C700 Molecular Biology, Biophysics and Biochemistry
Department: Faculties > Health and Life Sciences > Applied Sciences
Depositing User: Elena Carlaw
Date Deposited: 01 Oct 2020 11:31
Last Modified: 01 Oct 2020 11:45
URI: http://nrl.northumbria.ac.uk/id/eprint/44370

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