Microwave-Assisted Extraction for Microalgae: From Biofuels to Biorefinery

The commercial reality of bioactive compounds and oil production from microalgal species is constrained by the high cost of production. Downstream processing, which includes harvesting and extraction, can account for 70–80% of the total cost of production. Consequently, from an economic perspective...

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Main Authors: Rahul Vijay Kapoore, Thomas O. Butler, Jagroop Pandhal, Seetharaman Vaidyanathan
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Biology
Subjects:
Online Access:http://www.mdpi.com/2079-7737/7/1/18
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author Rahul Vijay Kapoore
Thomas O. Butler
Jagroop Pandhal
Seetharaman Vaidyanathan
author_facet Rahul Vijay Kapoore
Thomas O. Butler
Jagroop Pandhal
Seetharaman Vaidyanathan
author_sort Rahul Vijay Kapoore
collection DOAJ
description The commercial reality of bioactive compounds and oil production from microalgal species is constrained by the high cost of production. Downstream processing, which includes harvesting and extraction, can account for 70–80% of the total cost of production. Consequently, from an economic perspective extraction technologies need to be improved. Microalgal cells are difficult to disrupt due to polymers within their cell wall such as algaenan and sporopollenin. Consequently, solvents and disruption devices are required to obtain products of interest from within the cells. Conventional techniques used for cell disruption and extraction are expensive and are often hindered by low efficiencies. Microwave-assisted extraction offers a possibility for extraction of biochemical components including lipids, pigments, carbohydrates, vitamins and proteins, individually and as part of a biorefinery. Microwave technology has advanced since its use in the 1970s. It can cut down working times and result in higher yields and purity of products. In this review, the ability and challenges in using microwave technology are discussed for the extraction of bioactive products individually and as part of a biorefinery approach.
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spelling doaj.art-d4c19df6cc98476d841475ff5a82a8f92023-09-02T15:04:25ZengMDPI AGBiology2079-77372018-02-01711810.3390/biology7010018biology7010018Microwave-Assisted Extraction for Microalgae: From Biofuels to BiorefineryRahul Vijay Kapoore0Thomas O. Butler1Jagroop Pandhal2Seetharaman Vaidyanathan3Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield S1 3JD, UKDepartment of Chemical and Biological Engineering, The University of Sheffield, Sheffield S1 3JD, UKDepartment of Chemical and Biological Engineering, The University of Sheffield, Sheffield S1 3JD, UKDepartment of Chemical and Biological Engineering, The University of Sheffield, Sheffield S1 3JD, UKThe commercial reality of bioactive compounds and oil production from microalgal species is constrained by the high cost of production. Downstream processing, which includes harvesting and extraction, can account for 70–80% of the total cost of production. Consequently, from an economic perspective extraction technologies need to be improved. Microalgal cells are difficult to disrupt due to polymers within their cell wall such as algaenan and sporopollenin. Consequently, solvents and disruption devices are required to obtain products of interest from within the cells. Conventional techniques used for cell disruption and extraction are expensive and are often hindered by low efficiencies. Microwave-assisted extraction offers a possibility for extraction of biochemical components including lipids, pigments, carbohydrates, vitamins and proteins, individually and as part of a biorefinery. Microwave technology has advanced since its use in the 1970s. It can cut down working times and result in higher yields and purity of products. In this review, the ability and challenges in using microwave technology are discussed for the extraction of bioactive products individually and as part of a biorefinery approach.http://www.mdpi.com/2079-7737/7/1/18biorefinerymicroalgaemicrowave-assisted extraction (MAE)lipid extractiondirect transesterification (DT)biofuels
spellingShingle Rahul Vijay Kapoore
Thomas O. Butler
Jagroop Pandhal
Seetharaman Vaidyanathan
Microwave-Assisted Extraction for Microalgae: From Biofuels to Biorefinery
Biology
biorefinery
microalgae
microwave-assisted extraction (MAE)
lipid extraction
direct transesterification (DT)
biofuels
title Microwave-Assisted Extraction for Microalgae: From Biofuels to Biorefinery
title_full Microwave-Assisted Extraction for Microalgae: From Biofuels to Biorefinery
title_fullStr Microwave-Assisted Extraction for Microalgae: From Biofuels to Biorefinery
title_full_unstemmed Microwave-Assisted Extraction for Microalgae: From Biofuels to Biorefinery
title_short Microwave-Assisted Extraction for Microalgae: From Biofuels to Biorefinery
title_sort microwave assisted extraction for microalgae from biofuels to biorefinery
topic biorefinery
microalgae
microwave-assisted extraction (MAE)
lipid extraction
direct transesterification (DT)
biofuels
url http://www.mdpi.com/2079-7737/7/1/18
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AT thomasobutler microwaveassistedextractionformicroalgaefrombiofuelstobiorefinery
AT jagrooppandhal microwaveassistedextractionformicroalgaefrombiofuelstobiorefinery
AT seetharamanvaidyanathan microwaveassistedextractionformicroalgaefrombiofuelstobiorefinery