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

6 Scopus citations


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
Issue number1
StatePublished - 11 Feb 2019

Bibliographical note

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


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


Dive into the research topics of 'Bactericidal effect of intense pulsed light on seeds without loss of viability'. Together they form a unique fingerprint.

Cite this