Correlation of Fourier transforms of pulsed electric field waveform and microorganism inactivation

Author

Love, P.

Author_Institution

Dept. of Chem., Connecticut Univ., Stamford, CT, USA

Volume

5

Issue

1

fYear

1998

fDate

2/1/1998 12:00:00 AM

Firstpage

142

Lastpage

147

Abstract

The real ℜ[F(ω)] and imaginary 𝔍[F(ω)] Fourier transform parameters of temporal waveforms comparable to those used in PEF (pulsed electric field) studies of microorganism S_f (survival fraction) as a function of waveform have been calculated. log S_ft is a linear function of the log of the ratio of areas 𝔍[F(ω)]/ℜ[F(ω)] and log of 𝔍[F(ω)]/ℜ[F(ω)]+𝔍[F(ω)]. The correlation with the largest slope, was found for the latter ratio. The log (S_f) also was found to correlate with the log of the integrated pulse magnitude M(ω) and log of temporal pulse area. The correlation coefficients are ⩾0.95

Keywords

Fourier transforms; bioelectric phenomena; biological effects of fields; cellular biophysics; waveform analysis; Fourier transform; correlation coefficient; microorganism inactivation; pulsed electric field; survival fraction; temporal waveform; Chemistry; Computed tomography; Discrete Fourier transforms; Equations; Food industry; Fourier transforms; Frequency domain analysis; Microorganisms; Pulse measurements; Sampling methods;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.660820

Filename

660820