Effects of gamma irradiation on the physical and structural properties of β-glucan

Eui Hong Byun, Jae Hun Kim, Nak Yun Sung, Jong il Choi, Seung Taik Lim, Kwang Hoon Kim, Hong Sun Yook, Myung Woo Byun, Ju Woon Lee

Research output: Contribution to journalArticle

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Abstract

This study was carried out to evaluate the effect of gamma irradiation on the physical and structural properties of β-glucan. β-Glucan solution (10%, w/v) was exposed to a cobalt-60 source (10, 30, and 50 kGy). Gel permeation chromatography data showed that the average molecular weight of irradiated β-glucan significantly decreased as the irradiation dose increased. In addition, gamma irradiation improved the solubility and decreased the viscosity of β-glucan by the radiolysis of the glycosidic bonds, and this effect was dependent upon the absorbed dose. Fourier transform infrared spectroscopy results showed that the functional groups of β-glucan were not significantly affected by gamma irradiation. Scanning electron microscopy results showed that the irradiated β-glucan was deformed into smaller granules. Therefore, gamma irradiation could be used in commercial processes as an effective method to resolve the physical problems involved in the use of β-glucan with high viscosity and low solubility.

Original languageEnglish
Pages (from-to)781-786
Number of pages6
JournalRadiation Physics and Chemistry
Volume77
Issue number6
DOIs
Publication statusPublished - 2008 Jun 1

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physical properties
irradiation
solubility
viscosity
cobalt 60
dosage
gel chromatography
radiolysis
molecular weight
infrared spectroscopy
scanning electron microscopy

Keywords

  • β-Glucan
  • Gamma irradiation
  • Radiolysis
  • Solubility
  • Viscosity

ASJC Scopus subject areas

  • Radiation

Cite this

Effects of gamma irradiation on the physical and structural properties of β-glucan. / Byun, Eui Hong; Kim, Jae Hun; Sung, Nak Yun; Choi, Jong il; Lim, Seung Taik; Kim, Kwang Hoon; Yook, Hong Sun; Byun, Myung Woo; Lee, Ju Woon.

In: Radiation Physics and Chemistry, Vol. 77, No. 6, 01.06.2008, p. 781-786.

Research output: Contribution to journalArticle

Byun, EH, Kim, JH, Sung, NY, Choi, JI, Lim, ST, Kim, KH, Yook, HS, Byun, MW & Lee, JW 2008, 'Effects of gamma irradiation on the physical and structural properties of β-glucan', Radiation Physics and Chemistry, vol. 77, no. 6, pp. 781-786. https://doi.org/10.1016/j.radphyschem.2007.12.008
Byun, Eui Hong ; Kim, Jae Hun ; Sung, Nak Yun ; Choi, Jong il ; Lim, Seung Taik ; Kim, Kwang Hoon ; Yook, Hong Sun ; Byun, Myung Woo ; Lee, Ju Woon. / Effects of gamma irradiation on the physical and structural properties of β-glucan. In: Radiation Physics and Chemistry. 2008 ; Vol. 77, No. 6. pp. 781-786.
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