Impedance spectroscopy: An efficient and fast method to probe the growing of Lactobacillus acidophilus

Translated title of the contribution: Impedance spectroscopy: An efficient and fast method to probe the growing of Lactobacillus acidophilus

M. Villa-García, R. Pedroza-Islas, E. San Martin-Martínez, M. Aguilar-Frutis

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In this work, a compart-on between Impedance Spectroscopy (IS) and Plate Counting to probe the growth of Lactobacillus acidophilus (La) was done. It was found that after inoculation, and after 0.8 h, the microbial growth was noticed by IS, inferred by the λ parameter. In contrast, by means of the Plate Counting method, the growth was noticed after 6.8 h. The experimental data obtained by IS were first fitted by an RC series circuit, and then, the curves generated were modeled by the; well-known growmg models of Gompertz and Boltzmann. When using the IS technique, ii was found that the resistance of the medium was a better parameter to describe the growing process of La.

Translated title of the contributionImpedance spectroscopy: An efficient and fast method to probe the growing of Lactobacillus acidophilus
Original languageEnglish
Pages (from-to)57-64
Number of pages8
JournalRevista Mexicana de Ingeniera Quimica
Volume12
Issue number1
StatePublished - 2013
Externally publishedYes

Keywords

  • Impedance spectroscopy
  • Lactobacillus acidophilus
  • Microbiology growing curves

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