ESR spectroscopy study of radicals induced by gamma radiation in oleaster (Elaeagnus Angustifolia L.) fruits

被引：2

作者：

Paksu, Ufuk ^{[1
]}

Engin, Birol ^{[2
]}

Sayin, Ulku ^{[3
]}

机构：

[1] Kirklareli Univ, Fac Art & Sci, Dept Phys, Kayali Campus, TR-39060 Kirklareli, Turkey

[2] Dokuz Eylul Univ, Fac Sci, Dept Phys, Izmir, Turkey

[3] Selcuk Univ, Fac Sci, Dept Phys, Konya, Turkey

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2022年 / 137卷 / 08期

关键词：

D O I：

10.1140/epjp/s13360-022-03155-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the electron spin resonance (ESR) technique, the kinetic and spectroscopic properties of free radicals generated by gamma radiation in oleaster (Elaeagnus angustifolia L.) fruits were investigated. For ESR measurements, skin parts of unirradiated (Group-A) and gamma-irradiated (Group-B) oleaster fruits were used. While the ESR spectrum of the Group-A samples consisted of a singlet signal at g = 2.0032 +/- 0.0002, two cellulosic signal components were observed in the low (g = 2.0205 +/- 0.0002) and high (g = 1.9861 +/- 0.0002) field regions of this singlet signal in Group-B sample. A model containing three free radicals was used to determine spectroscopic parameters of radiation-specific radicals. The stability at room temperature and detailed kinetic behaviors of the radiation-specific signals were investigated. Results show that gamma irradiation induces free radicals in oleaster fruits, and these radicals can be used to identify gamma irradiation process. Graphic abstract

引用

页数：9

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