Determine of caffeine using HPLC and other quality characteristics in different brands of coffee / Nor Aishah Akmal A. Rahman
Determination of caffeine in coffee was done using HPLC. The main objective of the analysis is to determine the caffeine conteiit in various coffee brands. Highest caffeine concentration was detected in Kapal Api roasted coffee which was 137.61 ppm. The lowest concentration of caffeine was obtained...
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2005
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| Online Access: | https://ir.uitm.edu.my/id/eprint/72548/1/72548.pdf |
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my-uitm-ir.725482024-05-29T09:19:32Z Determine of caffeine using HPLC and other quality characteristics in different brands of coffee / Nor Aishah Akmal A. Rahman 2005 A. Rahman, Nor Aishah Akmal Determination of caffeine in coffee was done using HPLC. The main objective of the analysis is to determine the caffeine conteiit in various coffee brands. Highest caffeine concentration was detected in Kapal Api roasted coffee which was 137.61 ppm. The lowest concentration of caffeine was obtained in Boh decaffeinated coffee with 11.29 ppm. Physical analysis of moisture content, ash and colour of coffee were also carried out to compare the quality characteristic between different coffee samples. The highest percentage of moisture content was obtained in Nescafe decaffeinated coffee which was 4.10%. The highest percentage of ash was found in Nescafe decaffeinated coffee. The percentage of the ash was 8.24%. Colour determination on the coffee sample was carried out using chromameter. 2005 Thesis https://ir.uitm.edu.my/id/eprint/72548/ https://ir.uitm.edu.my/id/eprint/72548/1/72548.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Applied Sciences Abdul Razak, Rozana |
| institution |
Universiti Teknologi MARA |
| collection |
UiTM Institutional Repository |
| language |
English |
| advisor |
Abdul Razak, Rozana |
| description |
Determination of caffeine in coffee was done using HPLC. The main objective of the analysis is to determine the caffeine conteiit in various coffee brands. Highest caffeine concentration was detected in Kapal Api roasted coffee which was 137.61 ppm. The lowest concentration of caffeine was obtained in Boh decaffeinated coffee with 11.29 ppm. Physical analysis of moisture content, ash and colour of coffee were also carried out to compare the quality characteristic between different coffee samples. The highest percentage of moisture content was obtained in Nescafe decaffeinated coffee which was 4.10%. The highest percentage of ash was found in Nescafe decaffeinated coffee. The percentage of the ash was 8.24%. Colour determination on the coffee sample was carried out using chromameter. |
| format |
Thesis |
| qualification_level |
Bachelor degree |
| author |
A. Rahman, Nor Aishah Akmal |
| spellingShingle |
A. Rahman, Nor Aishah Akmal Determine of caffeine using HPLC and other quality characteristics in different brands of coffee / Nor Aishah Akmal A. Rahman |
| author_facet |
A. Rahman, Nor Aishah Akmal |
| author_sort |
A. Rahman, Nor Aishah Akmal |
| title |
Determine of caffeine using HPLC and other quality characteristics in different brands of coffee / Nor Aishah Akmal A. Rahman |
| title_short |
Determine of caffeine using HPLC and other quality characteristics in different brands of coffee / Nor Aishah Akmal A. Rahman |
| title_full |
Determine of caffeine using HPLC and other quality characteristics in different brands of coffee / Nor Aishah Akmal A. Rahman |
| title_fullStr |
Determine of caffeine using HPLC and other quality characteristics in different brands of coffee / Nor Aishah Akmal A. Rahman |
| title_full_unstemmed |
Determine of caffeine using HPLC and other quality characteristics in different brands of coffee / Nor Aishah Akmal A. Rahman |
| title_sort |
determine of caffeine using hplc and other quality characteristics in different brands of coffee / nor aishah akmal a. rahman |
| granting_institution |
Universiti Teknologi MARA (UiTM) |
| granting_department |
Faculty of Applied Sciences |
| publishDate |
2005 |
| url |
https://ir.uitm.edu.my/id/eprint/72548/1/72548.pdf |
| _version_ |
1804889674199597056 |