کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7781382 | 1500560 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemico-physical and pharmacodynamic properties of extracellular Dictyosphaerium chlorelloides biopolymer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Microalgae occupy all territories and their products represent a rich source of phytochemicals for human being. Green microalga Dictyosphaerium chlorelloides was found to be a significant producer of the extracellular biopolymer. Dominant components of the biopolymer were found to be Gal (39â¯wt%) with its methyl derivatives (15â¯wt%), Rha (19â¯wt%) and Man (14â¯wt%). 2-OMe-Gal was found to be the major derivative while other sugars, namely 3-OMe-, 6-OMe- and 2,3-di-OMe-Gal, 3-OMe-Glc and 4-OMe-Xyl were in smaller amounts. NMR spectroscopy revealed complex structure with galactan backbone branched by sugars in furano and pyrano forms in alpha and beta configurations. NMR data of 2-OMe, 3-OMe, 2,3-OMe and 6-OMe galactoses afforded characteristic values for O-methyls in each position. Biopolymer antitussive effect was similar to that of centrally acting antitussive drugs, indicating its relatively good antitussive potential.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 198, 15 October 2018, Pages 215-224
Journal: Carbohydrate Polymers - Volume 198, 15 October 2018, Pages 215-224
نویسندگان
Michal Halaj, Mária Matulová, Martina Å utovská, Jana BarborÃková, Ivana Kazimierová, SoÅa FraÅová, Pavel PÅibyl, Vladislav Cepák, JaromÃr Lukavský, Peter Capek,