Role of gamma irradiation on the natural antioxidants in cumin seeds

Jae Hun Kim, Mee Hye Shin, Young Jeong Hwang, Periasamy Srinivasan, Jae Kyung Kim, Hyun Jin Park, Myung Woo Byun, Ju Woon Lee

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


Antioxidants quench oxidation by transferring hydrogen atoms to free radicals. In the present investigation, the effect of gamma irradiation on the natural antioxidants of irradiated cumin was studied. Cumin samples were purchased from retailers and then irradiated in a cobalt-60 irradiator to 0, 1, 3, 5 and 10 kGy at ambient temperature. The effect of irradiation on the antioxidant properties of the cumin seed were investigated by evaluating the radical-scavenging effect on the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, determination of ferric reducing antioxidant power (FRAP), total polyphenol content (TPC) and the antioxidant index by β-carotene/linoleic acid co-oxidation. Electron spin resonance (ESR) was performed to assess ionization of cumin seeds by gamma irradiation. Irradiation was found to nonsignificantly increase and/or maintain all antioxidant parameters, TPC and the ESR signal intensity was found to be increased in cumin seeds.

Original languageEnglish
Pages (from-to)153-157
Number of pages5
JournalRadiation Physics and Chemistry
Issue number2
Publication statusPublished - 2009 Feb


  • Antioxidants
  • Cumin
  • ESR
  • Gamma irradiation
  • Total phenolic content

ASJC Scopus subject areas

  • Radiation


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