Document Detail


An investigation of ultrasound effect on microalgal cell integrity and lipid extraction efficiency.
MedLine Citation:
PMID:  24321606     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In this study, different ultrasound power intensities (0.1-0.5WmL(-1)) were applied at a frequency of 30kHz and for durations of 5-60min to mixed microalgal cultures, one cultivated in BG11 medium, and the other in secondary effluent wastewater. The ultrasonic effect on cell disruption was revealed by increased concentrations of protein and carbohydrate released into the solution, and a decreased concentration of total suspended solids in cell suspension. The highest intercellular material release was achieved at an ultrasonic energy intensity of 0.4kWhL(-1), while the effect of ultrasound on cell disruption was reduced at higher energy intensities. Additionally, the ultrasonic effect on lipid extraction efficiency was studied in the presence of two different solvents, n-hexane and chloroform/methanol mixture. The application of ultrasound at 0.4kWhL(-1), provided 1.5-2.0-fold increase in lipid extraction yields in the presence of the solvents.
Authors:
Ulker D Keris-Sen; Unal Sen; Gulfem Soydemir; Mirat D Gurol
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-11-19
Journal Detail:
Title:  Bioresource technology     Volume:  152C     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2013 Nov 
Date Detail:
Created Date:  2013-12-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  407-413     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Elsevier Ltd. All rights reserved.
Affiliation:
Gebze Institute of Technology, Faculty of Engineering, Department of Environmental Engineering, TR-41400 Kocaeli, Turkey.
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