کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1892088 1043948 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gamma irradiation effect on the enzymatic activities of horseradish and apple peroxidases
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Gamma irradiation effect on the enzymatic activities of horseradish and apple peroxidases
چکیده انگلیسی

The behavior at low-dose exposure (0.033–0.4 kGy) of horseradish peroxidase (HRP) and of two different purified fractions of apple (Jonathan cultivar) peroxidases (named APR1S and APR2S) was studied. The HRP solutions were added with either 0.32 M fructose or glucose in order to study their effect on enzymes activity response under γ (137Cs, dose rate 0.4 kGy/h) irradiation. The obtained results showed similar behavior between HRP-sugar-added solution and apple fraction with higher oligosaccharides content (APR2S) undergoing low-dose treatment. The same pattern was observed between unglycosylated HRP and APR1S with lower oligosaccharides content. These similarities gave us the possibility to conclude that the presence of oligosaccharides, in more or less quantities, influences in the same way the peroxidases activity, from different plant species, exposed to γ irradiation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 78, Issue 1, January 2009, Pages 33–36
نویسندگان
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