Comparison of total phenolic content and antioxidant activity of Kappaphycus alvarezii from Langkawi and Semporna

Norhidayu Mohamed, Aminah Abdullah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The total phenolic content and antioxidant activity of Kappaphycus alvarezii obtained from Langkawi, Kedah and Semporna, Sabah were evaluated. The total phenolic content (TPC) of the extracts were determined according to the Folin Ciocalteau method and results were expressed as gallic acid equivalents. The antioxidant activities of the extracts were determined by three methods namely Free Radical Scavenging Activity (DPPH), Ferric Reducing Antioxidant Power (FRAP) and Trolox Equivalent Antioxidant Capacity (TEAC). Both of the TPC and FRAP assays showed that seaweed from Semporna, Sabah significantly (p<0.05) had higher antioxidant activities compared to Langkawi, Kedah one (Semporna's seaweed: 73.25 mg GAE/100g and 16.94 μmol TE/100g, Langkawi's seaweed: 54.35 mg GAE/100g and 10.01 μmol TE/100 g). However, the seaweed from Langkawi (60.93 μmol TE/100g) show higher TEAC value compared to seaweed from Semporna (36.36 μmol TE/100g) but for DPPH assay there was no significant difference (p>0.05) between the samples. Pearson coefficient correlation test, showed that there was a positive correlation (p<0.01) between TPC and antioxidant activity (FRAP assay) (r=0.980) and thus it can be concluded that the phenolic compounds was a contributor of the antioxidant activity in Kappaphycus alvarezii.

Original languageEnglish
Title of host publication2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium
PublisherAmerican Institute of Physics Inc.
Volume1784
ISBN (Electronic)9780735414464
DOIs
Publication statusPublished - 17 Nov 2016
Event2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016 - Selangor, Malaysia
Duration: 13 Apr 201614 Apr 2016

Other

Other2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016
CountryMalaysia
CitySelangor
Period13/4/1614/4/16

Fingerprint

antioxidants
seaweeds
scavenging
correlation coefficients
free radicals
acids

Keywords

  • Antioxidant Activity
  • Kappaphycus alvarezii
  • Total Phenolic Content

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Mohamed, N., & Abdullah, A. (2016). Comparison of total phenolic content and antioxidant activity of Kappaphycus alvarezii from Langkawi and Semporna. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium (Vol. 1784). [030040] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966778

Comparison of total phenolic content and antioxidant activity of Kappaphycus alvarezii from Langkawi and Semporna. / Mohamed, Norhidayu; Abdullah, Aminah.

2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016. 030040.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mohamed, N & Abdullah, A 2016, Comparison of total phenolic content and antioxidant activity of Kappaphycus alvarezii from Langkawi and Semporna. in 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. vol. 1784, 030040, American Institute of Physics Inc., 2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016, Selangor, Malaysia, 13/4/16. https://doi.org/10.1063/1.4966778
Mohamed N, Abdullah A. Comparison of total phenolic content and antioxidant activity of Kappaphycus alvarezii from Langkawi and Semporna. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784. American Institute of Physics Inc. 2016. 030040 https://doi.org/10.1063/1.4966778
Mohamed, Norhidayu ; Abdullah, Aminah. / Comparison of total phenolic content and antioxidant activity of Kappaphycus alvarezii from Langkawi and Semporna. 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016.
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