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Researchers at Pohang University of Science and Technology Have Reported New Data on Environmental Biology (Comparison of Ecklonia cava, Ecklonia...

July 29, 2014



Researchers at Pohang University of Science and Technology Have Reported New Data on Environmental Biology (Comparison of Ecklonia cava, Ecklonia stolonifera and Eisenia bicyclis for phlorotannin extraction)

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Life Science Research. According to news reporting from Pohang, South Korea, by NewsRx journalists, research stated, "Phlorotannins are polyphenols of marine algae, particularly brown seaweed, having multiple biological activities. A reverse phase-high performance liquid chromatography method was developed for rapid and routine quantification of two major phlorotannins, dieckol and phlorofucofuroeckol-A (PFE-A), from boiling water- and organic solvent-extracts of brown seaweeds Ecklonia cava, E. stolonifera and Eisenia bicyclis."

The news correspondents obtained a quote from the research from the Pohang University of Science and Technology, "The regression equations for dieckol and PFE-A were as follows: the concentration (mg ml-1) = 16.56 x peak height (cm) + 0.44, and the concentration = 20.60 x peak height (cm) + 0.11, with correlation coefficients of 0.996 and 0.999, respectively. Compared to organic solvent extraction, the recovery yield of dieckol from boiling water extracts of E. cava, E. stolonifera and E. bicyclis was 86%, 93%, and 98%, respectively. The recovery yield of PFE-A was 74%, 86% and 62%, respectively. Antioxidant activity was detected in each E. bicyclis water extract (91%), followed by E. stolonifera (90%) and E. cava (74%)."

According to the news reporters, the research concluded: "Dieckol and PFE-A showed almost 9- and 7-fold stronger antioxidant activity than the standard butylhydroxytoluene, and 6- and 4-fold greater than L-ascorbic acid in molar concentration, respectively."

For more information on this research see: Comparison of Ecklonia cava, Ecklonia stolonifera and Eisenia bicyclis for phlorotannin extraction. Journal of Environmental Biology, 2014;35(4):713-719. Journal of Environmental Biology can be contacted at: Triveni Enterprises, C, O Kiran Dalela, 1, 206 Vikas Nagar, Kursi Rd, Lucknow 226 022, India (see also Life Science Research).

Our news journalists report that additional information may be obtained by contacting M.T.H. Chowdhury, Pohang University of Science & Technology, Postech Ocean Sci & Technol Inst, Pohang 790784, South Korea. Additional authors for this research include I. Bangoura, J.Y. Kang, J.Y. Cho, J. Joo, Y.S. Choi, D.S. Hwang and Y.K. Hong.

Keywords for this news article include: Pohang, South Korea, Asia, Life Science Research

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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