Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system.
Polyphenol and pH influence the flavour quality of cocoa beans during roasting. Amino acids and reducing sugars are flavour precursors in cocoa beans, which develop into cocoa-specific aroma through Maillard reactions during roasting. A central composite design was applied to determine the combined...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-Blackwell
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/14294/ |
| _version_ | 1848842353399300096 |
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| author | S.S., Noor Soffalina Selamat, Jinap Saari, Nazamid Sheikh Abdul Hamid, Nazimah |
| author_facet | S.S., Noor Soffalina Selamat, Jinap Saari, Nazamid Sheikh Abdul Hamid, Nazimah |
| author_sort | S.S., Noor Soffalina |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Polyphenol and pH influence the flavour quality of cocoa beans during roasting. Amino acids and reducing sugars are flavour precursors in cocoa beans, which develop into cocoa-specific aroma through Maillard reactions during roasting. A central composite design was applied to determine the combined effect of polyphenol and pH on the flavour precursors during cocoa roasting at 120 °C for 45 min using a lipidic model system. Polyphenol was added at 40, 80 and 120 g kg−1 and pH was adjusted to 4.5, 6 and 7.5. The response surface methodology revealed that a lower concentration of amino acids and reducing sugars was obtained at higher polyphenol concentration (120 g kg−1) and lower pH value (4.5). Based on the constraints set, the best polyphenol concentration of 43–58 g kg−1 and pH of 7.0–7.5 was found to be optimum for the formation of flavour precursors in this lipidic model study. |
| first_indexed | 2025-11-15T07:57:47Z |
| format | Article |
| id | upm-14294 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:57:47Z |
| publishDate | 2009 |
| publisher | Wiley-Blackwell |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-142942013-07-24T06:58:31Z http://psasir.upm.edu.my/id/eprint/14294/ Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system. S.S., Noor Soffalina Selamat, Jinap Saari, Nazamid Sheikh Abdul Hamid, Nazimah Polyphenol and pH influence the flavour quality of cocoa beans during roasting. Amino acids and reducing sugars are flavour precursors in cocoa beans, which develop into cocoa-specific aroma through Maillard reactions during roasting. A central composite design was applied to determine the combined effect of polyphenol and pH on the flavour precursors during cocoa roasting at 120 °C for 45 min using a lipidic model system. Polyphenol was added at 40, 80 and 120 g kg−1 and pH was adjusted to 4.5, 6 and 7.5. The response surface methodology revealed that a lower concentration of amino acids and reducing sugars was obtained at higher polyphenol concentration (120 g kg−1) and lower pH value (4.5). Based on the constraints set, the best polyphenol concentration of 43–58 g kg−1 and pH of 7.0–7.5 was found to be optimum for the formation of flavour precursors in this lipidic model study. Wiley-Blackwell 2009 Article PeerReviewed S.S., Noor Soffalina and Selamat, Jinap and Saari, Nazamid and Sheikh Abdul Hamid, Nazimah (2009) Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system. International Journal of Food Science and Technology, 44 (1). pp. 168-180. ISSN 0950-5423 10.1111/j.1365-2621.2008.01711.x English |
| spellingShingle | S.S., Noor Soffalina Selamat, Jinap Saari, Nazamid Sheikh Abdul Hamid, Nazimah Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system. |
| title | Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system. |
| title_full | Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system. |
| title_fullStr | Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system. |
| title_full_unstemmed | Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system. |
| title_short | Effect of polyphenol and pH on cocoa Maillard-related flavour precursors in a lipidic model system. |
| title_sort | effect of polyphenol and ph on cocoa maillard-related flavour precursors in a lipidic model system. |
| url | http://psasir.upm.edu.my/id/eprint/14294/ http://psasir.upm.edu.my/id/eprint/14294/ |