Electron paramagnetic resonance study of defects in gamma-irradiated marine mussel (Mytilus galloprovincialis) and scallop (Pecten jacobaeus) shells


Koseoglu R. , KOKSAL E., Birey M.

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, cilt.59, ss.773-779, 2004 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 59 Konu: 11
  • Basım Tarihi: 2004
  • Dergi Adı: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
  • Sayfa Sayıları: ss.773-779

Özet

EPR studies have been performed on some gamma-irradiated marine mussels (Mytilus galloprovincialis) and scallops (Pecten jacobaeus) from the families of Mytilidae and Pectinidae, respectively. Before gamma-irradiation, the EPR lines of Mytilus galloprovincialis indicated the existence of Mn2+ ions, which were not observed in the powders of scallop shells. gamma-irradiation induced defects in powders of Mytilus galloprovincialis shells, were attributed to orthorhombic CO3- axial CO3,3- orthorhombic CO2-, freely rotating CO2-, freely rotating SO2-, axial SO3-, isotropic PO42- and organic free radicals. gamma-irradiation induced defects in powders of Pecten jacobaeus shells were attributed to orthorhombic CO3-, axial CO33-, orthorhombic CO2-, freely rotating CO2-, freely rotating SO2-, and axial SO3-- free radicals. The EPR parameters of the free radicals were compared with literature data on similar defects.