Bactericidal effect of intense pulsed light on seeds without loss of viability

Su Min Kim, Hee Jeong Hwang, Chan Ick Cheigh, Myong Soo Chung

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This study investigated the microbial inactivation effects of intense pulsed light (IPL) treatment as an alternative to chemical treatment for decontaminating the radish and pak choi seeds. The f R values (which indicate the resistance to IPL treatment) for radish and pak choi seeds were 24.50, 20.81 J/cm 2 , respectively. This resistance exhibited by seeds to IPL treatment is related to their surface roughness. Their Rq (the root-mean-square roughness), average surface roughness (Ra), and 10-point height roughness (Rz) values indicate that each crevice on a rough surface could shelter microorganisms from IPL. Viability tests of seeds exposed to IPL treatment indicated that the average germination rates of treated seeds exceeded 85% on day 3 of germination, which is considered as an acceptable criterion for germination. Also, on day 5 of germination the average shoot lengths of sprouts exposed to IPL did not differ significantly from those of untreated seeds.

Original languageEnglish
Pages (from-to)281-287
Number of pages7
JournalFood Science and Biotechnology
Volume28
Issue number1
DOIs
StatePublished - 11 Feb 2019

Keywords

  • Germination rate
  • Intense pulsed light (IPL)
  • Pak choi seed
  • Radish seed
  • Roughness

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