TY - JOUR
T1 - Pulsed electric field treatment of microalgae
T2 - inactivation tendencies and energy consumption
AU - Qin, Si
AU - Timoshkin, Igor
AU - MacLean, Michelle
AU - Wilson, Mark
AU - MacGregor, Scott
AU - Given, Martin
AU - Anderson, John
AU - Wang, Tao
N1 - (c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
PY - 2014
Y1 - 2014
N2 - Pulsed electric field (PEF) treatment can be used to facilitate microbial cell lysis. The aim of this paper is to investigate this effect of PEF treatment on microalgae. The PEF system used in this paper consists of a pulse generator and treatment cell with parallel-plane metallic electrodes. The PEF treatment of microalgae, Spirulina, was conducted using 33.3- and 66.7-kV/cm electric field impulses. The efficiency of the PEF treatment for inactivation of microalgae was assessed by comparison of the growth curves of PEF-treated and untreated samples. Results showed that growth of microalgae can be stopped by the application between 100 and 500 high-field impulses with field magnitude 33.3 kV/cm. When the field is increased to a magnitude of 66.7 kV/cm, the growth of microalgae can be stopped by application of 50 impulses. Overall, this paper confirms that PEF treatments can be used for the inactivation of algae and the energy consumption of the PEF process can be reduced using suspensions with lower electrical conductivity.
AB - Pulsed electric field (PEF) treatment can be used to facilitate microbial cell lysis. The aim of this paper is to investigate this effect of PEF treatment on microalgae. The PEF system used in this paper consists of a pulse generator and treatment cell with parallel-plane metallic electrodes. The PEF treatment of microalgae, Spirulina, was conducted using 33.3- and 66.7-kV/cm electric field impulses. The efficiency of the PEF treatment for inactivation of microalgae was assessed by comparison of the growth curves of PEF-treated and untreated samples. Results showed that growth of microalgae can be stopped by the application between 100 and 500 high-field impulses with field magnitude 33.3 kV/cm. When the field is increased to a magnitude of 66.7 kV/cm, the growth of microalgae can be stopped by application of 50 impulses. Overall, this paper confirms that PEF treatments can be used for the inactivation of algae and the energy consumption of the PEF process can be reduced using suspensions with lower electrical conductivity.
KW - pulsed electric field
KW - inactivation
KW - microalgae
KW - pulsed electric field treatments
KW - PEF
UR - http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=27
U2 - 10.1109/TPS.2014.2317522
DO - 10.1109/TPS.2014.2317522
M3 - Article
SN - 0093-3813
VL - 42
SP - 3191
EP - 3196
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
IS - 10
ER -
