کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5161377 | 1502255 | 2017 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of di- and triterpenoid lipid tracers confirms the significant role of autoxidation in the degradation of terrestrial vascular plant material in the Canadian Arctic
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Autoxidation products of specific lipid components of angiosperms (betulin, α- and β-amyrin) and gymnosperms (dehydroabietic acid) and their parent compound in surface sediments from different regions of the Canadian Arctic were quantified. The high proportions of these autoxidation products in all the sediments (mean 60.1 ± 14.0%, 91.8 ± 1.1, 98.7 ± 2.2 and 96.6 ± 5.4% for dehydroabietic acid, betulin and α- and β-amyrin, respectively) confirmed, unambiguously, the important role played by autoxidation in the degradation of vascular plant material in the region and its enhancement in seawater. The enhancement of these processes in Arctic waters could be the result of intense photooxidation during the senescence of the organisms within the terrestrial environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Geochemistry - Volume 108, June 2017, Pages 43-50
Journal: Organic Geochemistry - Volume 108, June 2017, Pages 43-50
نویسندگان
Jean-François Rontani, Marie-Aimée Galeron, Rémi Amiraux, Lise Artigue, Simon T. Belt,