Comparison of gamma ray and electron beam irradiation on extraction yield, morphological and antioxidant properties of polysaccharides from tamarind seed

Jong il Choi, Jae Kyung Kim, Periasamy Srinivasan, Jae Hun Kim, Hyun Jin Park, Myung Woo Byun, Ju Woon Lee

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Tamarind (Tamarindus indica L) seed polysaccharide (TSP) is of great important due to its various biological activities. The present investigation was carried out to compare extraction yield, morphological characteristics, average molecular weights and antioxidant activities of TSP from gamma- and electron beam (EB)-irradiated tamarind kernel powder. The tamarind kernel powder was irradiated with 0, 5 and 10 kGy by gamma ray (GR) and electron beam, respectively. The extraction yield of TSP was increased significantly by EB and GR irradiation, but there was no significant difference between irradiation types. Morphological studies by scanning electron microscope showed that TSP from GR-irradiated tamarind seed had a fibrous structure, different from that of EB irradiated with a particle structures. The average molecular weight of TSP was decreased by the irradiation, and EB treatment degraded more severely than GR. Superoxide radical scavenging ability and total antioxidant capacity of EB-treated TSP showed higher than those of GR-treated TSP.

Original languageEnglish
Pages (from-to)605-609
Number of pages5
JournalRadiation Physics and Chemistry
Volume78
Issue number7-8
DOIs
Publication statusPublished - 2009 Jul 1

Keywords

  • Antioxidant activities
  • Electron beam
  • Extraction yield
  • Gamma ray
  • Tamarind seed polysaccharides

ASJC Scopus subject areas

  • Radiation

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