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Population changes and growth modeling of Salmonella enterica during alfalfa seed germination and early sprout development

  • Won-Il Kim
  • Sang Don Ryu
  • Se-Ri Kim
  • Hyun-Ju Kim
  • Seungdon Lee
  • Jinwoo Kim
Article

Abstract

This study examined the effects of alfalfa seed germination on growth of Salmonella enterica. We investigated the population changes of S. enterica during early sprout development. We found that the population density of S. enterica, which was inoculated on alfalfa seeds was increased during sprout development under all experimental temperatures, whereas a significant reduction was observed when S. enterica was inoculated on fully germinated sprouts. To establish a model for predicting S. enterica growth during alfalfa sprout development, the kinetic growth data under isothermal conditions were collected and evaluated based on Baranyi model as a primary model for growth data. To elucidate the influence of temperature on S. enterica growth rates, three secondary models were compared and found that the Arrhenius-type model was more suitable than others. We believe that our model can be utilized to predict S. enterica behavior in alfalfa sprout and to conduct microbial risk assessments.

Keywords

Predictive microbiology Seed sprout safety Salmonellosis 

Notes

Acknowledgements

This study was carried out with the support of National Institute of Agricultural Sciences (Project No. PJ01123702).

Supplementary material

10068_2018_412_MOESM1_ESM.docx (38 kb)
Supplementary material 1 (DOCX 38 kb)

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Copyright information

© The Korean Society of Food Science and Technology and Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Microbial Safety Team, National Institute of Agricultural SciencesRural Development AdministrationWanjuRepublic of Korea
  2. 2.Institute of Agriculture and Life ScienceGyeongsang National UniversityJinjuRepublic of Korea
  3. 3.Division of Applied Life ScienceGyeongsang National UniversityJinjuRepublic of Korea

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