Autorenfreundlich Bücher kaufen?!
Beschreibung
Shorttitle In this work a simultaneous determination of caffeine content was performed in sample of Sidama (Ethiopia) coffee, before and after roasting at either different temperature (140-2100c) or different exposure time (4-10min). A UV/VIS spectrophotometer method is used. A modest loss of caffeine was verified both in the roasting time and roasting temperature. Rate constant for chemical reactions at 2000 c were determined. The result shows weight loss increases during roasting. For pure caffeine molar decadic absorption coefficient and translational dipole moment were calculated.
Effect of roasting time on caffeine content, effect of roasting temperature on caffeine content, effect of temperature on pure caffeine
Details
| Verlag | LAP LAMBERT Academic Publishing |
| Ersterscheinung | 26. November 2010 |
| Maße | 22 cm x 15 cm x 0.4 cm |
| Gewicht | 102 Gramm |
| Format | Softcover |
| ISBN-13 | 9783843378628 |
| Seiten | 56 |
Schlagwörter
Bekannt durch
