Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds
1,3,7- trymethylxanthine (caffeine) is a naturally occurring substance found in cocoa seeds.The purpose of this research is to extract caffeine from Klon Koko Malaysia (KKM)22, to investigate the effect of particle size,solvent/feed ratio and extraction time,and also to determine the kinetic model f...
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| Format: | Undergraduates Project Papers |
| Language: | English |
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2012
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| Online Access: | http://umpir.ump.edu.my/id/eprint/4378/ http://umpir.ump.edu.my/id/eprint/4378/1/15.Batch%20extraction%20of%201%2C3%2C7-trymethylxanthine%20from%20KKM22%20cocoa%20seeds.pdf |
| _version_ | 1848817371075051520 |
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| author | Norhamizah, Johari |
| author_facet | Norhamizah, Johari |
| author_sort | Norhamizah, Johari |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | 1,3,7- trymethylxanthine (caffeine) is a naturally occurring substance found in cocoa seeds.The purpose of this research is to extract caffeine from Klon Koko Malaysia (KKM)22, to investigate the effect of particle size,solvent/feed ratio and extraction time,and also to determine the kinetic model for extraction of 1,3,7-trymethylxantine.The sample was prepared by grinding and sieving, followed by solid-liquid extraction using water by heat reflux extracting technique, liquid-liquid extraction with ethyl acetate,drying of caffeine by rotary evaporator,and finally analysis of the caffeine yield.The analysis of the caffeine yield was done using UV/Vis Spectrophotometric method.The caffeine yield was highest at sample particle size of 315 μm (0.22 % w/w caffeine or 2.1724 mg/g cocoa),solvent/feed ratio of 1:1 (0.22 % w/w caffeine or 2,2102 mg/g cocoa),and extraction time of 90 minutes (0.23 % w/w caffeine or 2.288 mg/g cocoa).The best conditions for the highest yield of caffeine from KKM22 were 315 μm of sample particle size, 1:1 of solvent/feed ratio, and 90 minutes of extraction time. |
| first_indexed | 2025-11-15T01:20:42Z |
| format | Undergraduates Project Papers |
| id | ump-4378 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:20:42Z |
| publishDate | 2012 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-43782023-05-11T04:43:16Z http://umpir.ump.edu.my/id/eprint/4378/ Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds Norhamizah, Johari TP Chemical technology 1,3,7- trymethylxanthine (caffeine) is a naturally occurring substance found in cocoa seeds.The purpose of this research is to extract caffeine from Klon Koko Malaysia (KKM)22, to investigate the effect of particle size,solvent/feed ratio and extraction time,and also to determine the kinetic model for extraction of 1,3,7-trymethylxantine.The sample was prepared by grinding and sieving, followed by solid-liquid extraction using water by heat reflux extracting technique, liquid-liquid extraction with ethyl acetate,drying of caffeine by rotary evaporator,and finally analysis of the caffeine yield.The analysis of the caffeine yield was done using UV/Vis Spectrophotometric method.The caffeine yield was highest at sample particle size of 315 μm (0.22 % w/w caffeine or 2.1724 mg/g cocoa),solvent/feed ratio of 1:1 (0.22 % w/w caffeine or 2,2102 mg/g cocoa),and extraction time of 90 minutes (0.23 % w/w caffeine or 2.288 mg/g cocoa).The best conditions for the highest yield of caffeine from KKM22 were 315 μm of sample particle size, 1:1 of solvent/feed ratio, and 90 minutes of extraction time. 2012-01 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/4378/1/15.Batch%20extraction%20of%201%2C3%2C7-trymethylxanthine%20from%20KKM22%20cocoa%20seeds.pdf Norhamizah, Johari (2012) Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds. Faculty of Chemical & Natural Resource Engineering, Universiti Malaysia Pahang. |
| spellingShingle | TP Chemical technology Norhamizah, Johari Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds |
| title | Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds |
| title_full | Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds |
| title_fullStr | Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds |
| title_full_unstemmed | Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds |
| title_short | Batch extraction of 1,3,7-trymethylxanthine from KKM22 cocoa seeds |
| title_sort | batch extraction of 1,3,7-trymethylxanthine from kkm22 cocoa seeds |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/4378/ http://umpir.ump.edu.my/id/eprint/4378/1/15.Batch%20extraction%20of%201%2C3%2C7-trymethylxanthine%20from%20KKM22%20cocoa%20seeds.pdf |