Cited by 144Microbial Inactivation MethodsAlgal biology and biofuel productionPlasma Applications and Diagnostics

Evaluation of Cell-Disruption Effects of Pulsed-Electric-Field Treatment of Synechocystis PCC 6803

Sheng, Jie, Vannela, Raveender, Rittmann, Bruce E.·2011·Environmental Science & Technology

Abstract

In order to use Synechocystis PCC 6803 as feedstock of nonpetroleum-based diesel fuel, pulsed electric field (PEF) technology was used for cell disruption prior to extraction of intracellular lipids. Severe cell disruption was evident after PEF treatment, especially with treatment intensity (TI) > 35 kWh/m(3). Temperature increase during the treatment brought about most of the destruction of autofluorescence compounds, as well as a fraction of inactivation and the destruction of the plasma and thylakoid membranes. However, the forces associated with the pulsing electric field caused significant damage to the plasma membrane, cell wall, and thylakoid membrane, and it even led to complete disruption of some cells into fragments, which resulted in biomass loss. Treatment by PEF enhanced the potential for the low-toxicity solvent isopropanol to access lipid molecules during subsequent solvent extraction, leading to lower usage of isopropanol for the same extraction efficiency. Thus, PEF shows promise for lowering the costs and environmental effects of the lipid-extraction step.

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Crossref · 10.1021/es103339x

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Authors
Sheng, J., Vannela, R., & Rittmann, B. E.
Affiliations
Arizona State University (US)
Corresponding author
Sheng, Jie
Venue
Environmental Science & Technology
Published
2011-03-23
Volume
45
Issue
8
Pages
3795-3802
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2027555951
Cited by
144
References
38
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 6 · 2022: 7 · 2021: 10 · 2020: 11 · 2019: 17 · 2018: 15 · 2017: 14 · 2016: 11 · 2015: 20 · 2014: 10 · 2013: 8 · 2012: 4
FWCI
6.00
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Microbial Inactivation Methods
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Plasma Applications and Diagnostics
Keywords
pulsed electric field, cell disruption, Synechocystis sp. PCC 6803, microalgae, cell membrane damage, thylakoid membranes, treatment intensity, biomass loss
MeSH terms
Cell Membrane, Disinfection, Electricity, Chemical Fractionation, Lipids, Solvents, 2-Propanol, Synechocystis, Microbial Viability, Biofuels

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