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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Skorupskaitė, Virginija;Makarevičienė, Violeta;Sendžikienė, Eglė;Gumbytė, Milda
Title: Microalgae Chlorella sp. cell disruption efficiency utilising ultrasonication and ultrahomogenisation methods
Is part of: Journal of Applied Phycology. Dordrecht : Springer, 2019, vol. 31, iss. 4
Extent: p. 2349-2354
Date: 2019
Keywords: Microalgae;Ultrasonication;Ultrahomogenisation;Cell disruption;Efficiency
Abstract: To break cells of the microalga Chlorella sp. two different methods were applied. The objectives of this study involved ultrasonication using an open system (a VCX 130 ultrasonic processor) and a closed (circulatory) system, as well as ultrahomogenisation at different rotation speeds. For the study, non-frozen microalgae biomass and cold-treated biomass (process of lyophilisation) were used. The efficiency of these methods was assessed with regard to the breaking of microalgae cells. The duration of exposure ranged from 1 to 60 min. A maximum microalgae cell disruption efficiency of 52.6% was achieved by applying high-frequency vibrations for 60 min in an open system while using frozen microalgae biomass. Ultrahomogenisation was less efficient when breaking microalgae cells, although efficiency grew as rotation speed increased. With rotation speed of 24,000 rpm and using frozen microalgae biomass, disruption efficiency reached 48.5% within 60 min. Exposure of microalgae suspension to cold increased cell disruption efficiency by approximately 0.34–3.9%
Affiliation(s): Miškų ir ekologijos fakultetas
Vytauto Didžiojo universitetas
Appears in Collections:1. Straipsniai / Articles
Universiteto mokslo publikacijos / University Research Publications

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