Antioxidant activities and phenolics content of eight species of seaweeds from north Borneo.

Matanjun, Patricia and Mohamed, Suhaila and Mohamed Mustapha, Noordin and Syed Muhammad, Sharifah Kharidah and Cheng, Hwee Ming (2008) Antioxidant activities and phenolics content of eight species of seaweeds from north Borneo. Journal of Applied Phycology, 20 (4). pp. 367-373. ISSN 1573-5176

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1007/s10811-007-9264-6

Abstract

The antioxidant activity of eight edible species of Malaysian North Borneo seaweeds obtained from Sabah waters (Kudat, Tanjung Aru and Semporna) consisting of three red seaweeds (Eucheuma cottonii, E. spinosum and Halymenia durvillaei), two green seaweeds (Caulerpa lentillifera and C. racemosa) and three brown seaweeds (Dictyota dichotoma, Sargassum polycystum and Padina sp.) were determined. Methanol and diethyl ether were used as extraction solvent. The antioxidant activities were determined by two methods, TEAC (trolox equivalent antioxidant capacity) and FRAP (ferric reducing antioxidant power) assays. The total phenolic content of the extract was determined according to the Folin–Ciocalteu method and results were expressed as phloroglucinol equivalents. The methanolic extracts of green seaweeds, C. lentillifera and C. racemosa, and the brown seaweed, S. polycystum showed better radical-scavenging and reducing power ability, and higher phenolic content than the other seaweeds. The TEAC and FRAP assays showed positive and significantly high correlation (R 2 = 0.89). There was a strong correlation (R 2 = 0.96) between the reducing power and the total phenolic content of the seaweeds methanolic dry extracts. These seaweeds could be potential rich sources of natural antioxidants.

Item Type:Article
Keyword:Seaweeds, Antioxidant activity, TEAC, FRAP, Phenolics, North Borneo waters
Faculty or Institute:Faculty of Food Science and Technology
Publisher:Springer Link
DOI Number:10.1007/s10811-007-9264-6
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s10811-007-9264-6
ID Code:7230
Deposited By: Samsida Samsudin
Deposited On:10 Jun 2010 09:36
Last Modified:27 Jul 2010 10:02

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 10 Jun 2010 09:36.

View statistics for "Antioxidant activities and phenolics content of eight species of seaweeds from north Borneo. "


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.