| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7792382 | Carbohydrate Polymers | 2014 | 9 Pages |
Abstract
Results of chemical analyses and immunological studies of two Coffea arabica instant coffee powders obtained by freeze-dried (ICPf) and spray-dried (ICPs) procedures, and arabinogalactan-protein (AGP3) obtained from ICPf are presented. For instant coffee powders no significant differences have been found in carbohydrate (ICPf: 37%, ICPs: 38%) as well as in caffeine (ICPf: 3.0%, ICPs: 3.4%) contents. Their 1H NMR spectra revealed differences in trigonelline and chlorogenic acids content and in a degree of AGP backbone substitution. Immunobiological tests of all samples (ICPf, ICPs, AGP2 and AGP3) revealed a significant immunostimulatory effect on induction of interleukin 2 and free radicals secretion by mice immunocytes. Moreover, tests revealed more pronounced effect of arabinogalactans AGP2 and AGP3 compared to instant coffee powders (ICPf and ICPs).
Related Topics
Physical Sciences and Engineering
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Authors
Peter Capek, Ema PauloviÄová, Mária Matulová, Danica MisloviÄová, Luciano Navarini, Furio Suggi-Liverani,