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A comparative assessment of microwave assisted (MAE) and conventional solid-liquid (SLE) techniques for the extraction of phloroglucinol from brown seaweed

Citation

Magnusson, M and Yuen, AKL and Zhang, R and Wright, JT and Taylor, RB and Maschmeyer, T and de Nys, R, A comparative assessment of microwave assisted (MAE) and conventional solid-liquid (SLE) techniques for the extraction of phloroglucinol from brown seaweed, Algal Research, 23 pp. 28-36. ISSN 2211-9264 (2017) [Refereed Article]


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DOI: doi:10.1016/j.algal.2017.01.002

Abstract

Brown seaweeds are rich in polyphenols with a basic building block of 1,3,5-trihydroxybenzene (phloroglucinol) and were investigated as a bioresource for the extraction of polyphenols for biopolymers and bioproducts. Species of seaweed with high contents of polyphenols were identified through meta-analysis and selected for the comparative assessment of the extraction efficiency of polyphenols using microwave assisted (MAE) vs. conventional solid-liquid (SLE) extraction. Out of ten species from Australia and New Zealand screened by SLE, Carpophyllum flexuosum (8.6%) and C. plumosum (7.5%) had the highest contents of polyphenols and were selected for MAE along with commercially available Ecklonia radiata. C. flexuosum was identified as the key species for extraction of polyphenols, with a 70% increase in yield using optimized MAE (aqueous, biomass:solvent ratio 1:30, 160 C, 3 min) compared to SLE. The cell-wall bound fraction of polyphenols in brown seaweed may be larger than previously thought and is accessible through MAE.

Item Details

Item Type:Refereed Article
Keywords:hydrothermal liquefaction, hydrothermal upgrading, phenolic compounds, biorefinery, macroalgae, bioproducts
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Phycology (incl. Marine Grasses)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Other Plant Production and Plant Primary Products
Objective Field:Plant Production and Plant Primary Products not elsewhere classified
Author:Wright, JT (Dr Jeffrey Wright)
ID Code:121383
Year Published:2017
Deposited By:Centre for Ecology and Biodiversity
Deposited On:2017-09-27
Last Modified:2017-09-27
Downloads:0

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