Modelling and optimization of wet microalgae Scenedesmus quadricauda lipid extraction using microwave pre-treatment method and response surface methodology

C. Onumaegbu, A. Alaswad, C. Rodriguez, A. Olabi

Research output: Contribution to journalArticle

65 Downloads (Pure)

Abstract

The process of extracting lipids from high-moisture Scenedesmus quadricauda microalgae biomass disrupted with microwave was examined. The study showed that microwave pre-treatment is effective in algae cell rupture while microwave power was found to be a significant factor to enhance the degree of cell disruption. Though microwave pre-treatment time had some effect, the degree of cell rupture seemed to decrease after a certain pre-treatment time. The total lipid from Scenedesmus quadricauda sp. were extracted using a mixture methanol and sulphuric acid as an organic solvent. In addition, it was discovered that microwave pre-treatment enhances the disruption of microalgae cells to attain a high level of lipid yields. Optimal lipid yield obtained in this study was 49% at power 600 W, heating time of 8 min and extraction time of 3.5 h.
Original languageEnglish
Pages (from-to)1323-1331
Number of pages9
JournalRenewable Energy
Volume132
Early online date20 Sep 2018
DOIs
Publication statusPublished - 31 Mar 2019

Fingerprint

Lipids
Microwaves
Algae
Organic solvents
Biomass
Methanol
Moisture
Heating
Acids

Keywords

  • microalgae
  • lipid extraction
  • microwave pre-treatment
  • modelling
  • optimization
  • biodiesel

Cite this

@article{a4a8cab2c25647c5ba07446fcb3e064a,
title = "Modelling and optimization of wet microalgae Scenedesmus quadricauda lipid extraction using microwave pre-treatment method and response surface methodology",
abstract = "The process of extracting lipids from high-moisture Scenedesmus quadricauda microalgae biomass disrupted with microwave was examined. The study showed that microwave pre-treatment is effective in algae cell rupture while microwave power was found to be a significant factor to enhance the degree of cell disruption. Though microwave pre-treatment time had some effect, the degree of cell rupture seemed to decrease after a certain pre-treatment time. The total lipid from Scenedesmus quadricauda sp. were extracted using a mixture methanol and sulphuric acid as an organic solvent. In addition, it was discovered that microwave pre-treatment enhances the disruption of microalgae cells to attain a high level of lipid yields. Optimal lipid yield obtained in this study was 49{\%} at power 600 W, heating time of 8 min and extraction time of 3.5 h.",
keywords = "microalgae, lipid extraction, microwave pre-treatment, modelling, optimization, biodiesel",
author = "C. Onumaegbu and A. Alaswad and C. Rodriguez and A. Olabi",
year = "2019",
month = "3",
day = "31",
doi = "10.1016/j.renene.2018.09.008",
language = "English",
volume = "132",
pages = "1323--1331",
journal = "Renewable Energy",
issn = "0960-1481",
publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Modelling and optimization of wet microalgae Scenedesmus quadricauda lipid extraction using microwave pre-treatment method and response surface methodology

AU - Onumaegbu, C.

AU - Alaswad, A.

AU - Rodriguez, C.

AU - Olabi, A.

PY - 2019/3/31

Y1 - 2019/3/31

N2 - The process of extracting lipids from high-moisture Scenedesmus quadricauda microalgae biomass disrupted with microwave was examined. The study showed that microwave pre-treatment is effective in algae cell rupture while microwave power was found to be a significant factor to enhance the degree of cell disruption. Though microwave pre-treatment time had some effect, the degree of cell rupture seemed to decrease after a certain pre-treatment time. The total lipid from Scenedesmus quadricauda sp. were extracted using a mixture methanol and sulphuric acid as an organic solvent. In addition, it was discovered that microwave pre-treatment enhances the disruption of microalgae cells to attain a high level of lipid yields. Optimal lipid yield obtained in this study was 49% at power 600 W, heating time of 8 min and extraction time of 3.5 h.

AB - The process of extracting lipids from high-moisture Scenedesmus quadricauda microalgae biomass disrupted with microwave was examined. The study showed that microwave pre-treatment is effective in algae cell rupture while microwave power was found to be a significant factor to enhance the degree of cell disruption. Though microwave pre-treatment time had some effect, the degree of cell rupture seemed to decrease after a certain pre-treatment time. The total lipid from Scenedesmus quadricauda sp. were extracted using a mixture methanol and sulphuric acid as an organic solvent. In addition, it was discovered that microwave pre-treatment enhances the disruption of microalgae cells to attain a high level of lipid yields. Optimal lipid yield obtained in this study was 49% at power 600 W, heating time of 8 min and extraction time of 3.5 h.

KW - microalgae

KW - lipid extraction

KW - microwave pre-treatment

KW - modelling

KW - optimization

KW - biodiesel

U2 - 10.1016/j.renene.2018.09.008

DO - 10.1016/j.renene.2018.09.008

M3 - Article

VL - 132

SP - 1323

EP - 1331

JO - Renewable Energy

JF - Renewable Energy

SN - 0960-1481

ER -