Techniques of lipid extraction from microalgae for biofuel production: a review

Sze Ying Lee; Ianatul Khoiroh; Dai Viet N. Vo; P. Senthil Kumar; Pau Loke Show

doi:10.1007/s10311-020-01088-5

Techniques of lipid extraction from microalgae for biofuel production: a review

Sze Ying Lee, Ianatul Khoiroh, Dai Viet N. Vo, P. Senthil Kumar, Pau Loke Show

Chemical and Petroleum Engineering

Research output: Contribution to journal › Review article › peer-review

79 Scopus citations

Abstract

Microalgae are feedstocks for production of carbon-neutral biofuels. Efforts have been performed to market microalgae biofuels, yet the production of microalgae biofuel remains a challenge due to the high production cost and low product yield. In particular, lipid extraction is a critical step to be optimized. Here, we review lipid extraction technologies and cell lysis strategies. Extraction techniques involve solvents such as organic solvents, supercritical fluids, ionic liquids, deep eutectic solvents and switchable solvents. Advantages and shortcomings of solvents are discussed. Besides, strategies have been designed to reduce power costs by integration of unit operations in downstream processing. We present single-step processes for simultaneous cell lysis and lipid extraction, such as ultrasound-, microwave-, bead-beating-, surfactant- and pulsed electric field-assisted extractions. The lipid extraction yield is enhanced by incorporating cell disruption into the lipid extraction process.

Original language	British English
Pages (from-to)	231-251
Number of pages	21
Journal	Environmental Chemistry Letters
Volume	19
Issue number	1
DOIs	https://doi.org/10.1007/s10311-020-01088-5
State	Published - Feb 2021

Keywords

Biodiesel
Downstream processes
Extraction
Lipid
Microalgae

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s10311-020-01088-5

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title = "Techniques of lipid extraction from microalgae for biofuel production: a review",

abstract = "Microalgae are feedstocks for production of carbon-neutral biofuels. Efforts have been performed to market microalgae biofuels, yet the production of microalgae biofuel remains a challenge due to the high production cost and low product yield. In particular, lipid extraction is a critical step to be optimized. Here, we review lipid extraction technologies and cell lysis strategies. Extraction techniques involve solvents such as organic solvents, supercritical fluids, ionic liquids, deep eutectic solvents and switchable solvents. Advantages and shortcomings of solvents are discussed. Besides, strategies have been designed to reduce power costs by integration of unit operations in downstream processing. We present single-step processes for simultaneous cell lysis and lipid extraction, such as ultrasound-, microwave-, bead-beating-, surfactant- and pulsed electric field-assisted extractions. The lipid extraction yield is enhanced by incorporating cell disruption into the lipid extraction process.",

keywords = "Biodiesel, Downstream processes, Extraction, Lipid, Microalgae",

author = "Lee, {Sze Ying} and Ianatul Khoiroh and Vo, {Dai Viet N.} and {Senthil Kumar}, P. and Show, {Pau Loke}",

note = "Funding Information: The authors gratefully acknowledge the support of Universiti Tunku Abdul Rahman (UTAR) research grant (Grant No. IPSR/RMC/UTARRF/2019-C1/L05). Publisher Copyright: {\textcopyright} 2020, Springer Nature Switzerland AG.",

year = "2021",

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doi = "10.1007/s10311-020-01088-5",

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T2 - a review

AU - Lee, Sze Ying

AU - Khoiroh, Ianatul

AU - Vo, Dai Viet N.

AU - Senthil Kumar, P.

AU - Show, Pau Loke

N1 - Funding Information: The authors gratefully acknowledge the support of Universiti Tunku Abdul Rahman (UTAR) research grant (Grant No. IPSR/RMC/UTARRF/2019-C1/L05). Publisher Copyright: © 2020, Springer Nature Switzerland AG.

PY - 2021/2

Y1 - 2021/2

N2 - Microalgae are feedstocks for production of carbon-neutral biofuels. Efforts have been performed to market microalgae biofuels, yet the production of microalgae biofuel remains a challenge due to the high production cost and low product yield. In particular, lipid extraction is a critical step to be optimized. Here, we review lipid extraction technologies and cell lysis strategies. Extraction techniques involve solvents such as organic solvents, supercritical fluids, ionic liquids, deep eutectic solvents and switchable solvents. Advantages and shortcomings of solvents are discussed. Besides, strategies have been designed to reduce power costs by integration of unit operations in downstream processing. We present single-step processes for simultaneous cell lysis and lipid extraction, such as ultrasound-, microwave-, bead-beating-, surfactant- and pulsed electric field-assisted extractions. The lipid extraction yield is enhanced by incorporating cell disruption into the lipid extraction process.

AB - Microalgae are feedstocks for production of carbon-neutral biofuels. Efforts have been performed to market microalgae biofuels, yet the production of microalgae biofuel remains a challenge due to the high production cost and low product yield. In particular, lipid extraction is a critical step to be optimized. Here, we review lipid extraction technologies and cell lysis strategies. Extraction techniques involve solvents such as organic solvents, supercritical fluids, ionic liquids, deep eutectic solvents and switchable solvents. Advantages and shortcomings of solvents are discussed. Besides, strategies have been designed to reduce power costs by integration of unit operations in downstream processing. We present single-step processes for simultaneous cell lysis and lipid extraction, such as ultrasound-, microwave-, bead-beating-, surfactant- and pulsed electric field-assisted extractions. The lipid extraction yield is enhanced by incorporating cell disruption into the lipid extraction process.

KW - Biodiesel

KW - Downstream processes

KW - Extraction

KW - Lipid

KW - Microalgae

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DO - 10.1007/s10311-020-01088-5

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SN - 1610-3653

VL - 19

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EP - 251

JO - Environmental Chemistry Letters

JF - Environmental Chemistry Letters

IS - 1

ER -

Techniques of lipid extraction from microalgae for biofuel production: a review

Abstract

Keywords

UN SDGs

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