Effects of gamma irradiation on the physical and structural properties of beta-glucan
- Authors
- Byun, Eul-Hong; Kim, Jae-Hun; Sung, Nak-Yun; Choi, Jong-il; Lim, Seong-Taek; Kim, Kwang-Hoon; Yook, Hong-Sun; Byun, Myung-Woo; Lee, Ju-Woon
- Issue Date
- 6월-2008
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- beta-Glucan; gamma irradiation; viscosity; solubility; radiolysis
- Citation
- RADIATION PHYSICS AND CHEMISTRY, v.77, no.6, pp.781 - 786
- Indexed
- SCIE
SCOPUS
- Journal Title
- RADIATION PHYSICS AND CHEMISTRY
- Volume
- 77
- Number
- 6
- Start Page
- 781
- End Page
- 786
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/123428
- DOI
- 10.1016/j.radphyschem.2007.12.008
- ISSN
- 0969-806X
- Abstract
- This study was carried out to evaluate the effect of gamma irradiation on the physical and structural properties of beta-glucan. beta-Glucan solution (10%, w/v) was exposed to a cobalt-60 source (10, 30, and 50kGy). Gel permeation chromatography data showed that the average molecular weight of irradiated beta-glucan significantly decreased as the irradiation dose increased. In addition, gamma irradiation improved the solubility and decreased the viscosity of beta-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 beta-glucan were not significantly affected by gamma irradiation. Scanning electron microscopy results showed that the irradiated beta-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 beta-glucan with high viscosity and low solubility. (C) 2007 Elsevier Ltd. All rights reserved.
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