Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR
The MALDI-TOF mass spectrometry (MS) and solid state CP-MAS 13C Nuclear Magnetic Resonance (NMR) spectroscopic technique were introduced to characterize Acacia mangium tannin (condensed tannins). The MALDI-TOF MS illustrated a series of peaks corresponding to oligomers of condensed tannins of up to...
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| Format: | Article |
| Language: | English |
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Pergamon Press
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/13536/1/Characterization%20of%20Acacia%20mangium%20polyflavonoid%20tannins%20by%20MALDI.pdf |
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| author | Yeoh, Beng Hoong Pizzi, Antonio Md. Tahir, Paridah Pasch, Harald |
| author_facet | Yeoh, Beng Hoong Pizzi, Antonio Md. Tahir, Paridah Pasch, Harald |
| author_sort | Yeoh, Beng Hoong |
| collection | UPM |
| description | The MALDI-TOF mass spectrometry (MS) and solid state CP-MAS 13C Nuclear Magnetic Resonance (NMR) spectroscopic technique were introduced to characterize Acacia mangium tannin (condensed tannins). The MALDI-TOF MS illustrated a series of peaks corresponding to oligomers of condensed tannins of up to 11 flavonoid units (3200 Da). A. mangium condensed tannins were found to consist predominantly of prorobinetinidin combined with profisetinidin and prodelphinidin. Both the MALDI-TOF mass spectra and the solid state CP-MAS 13C NMR indicated that the A. mangium tannins obtained from Kudat, had an almost completely linear structure; In addition, Lembah Beringin, consist of “angular” polymer structure; and Tawau, has included “twice-angular” polymer structures present in oligomers type of up to 7 flavonoid units. The high degree of polymerization of linear, angular type, twice-angular structures and longer oligomer (3200 Da) chains have not been observed in previous studies of condensed tannins. The spectra also indicated that A. mangium tannins are more heavily branched and have higher degree of polymerization (>7.0) compared to commercial mimosa (A. mearnsii) tannin (4.9). Because tannins are phenolic, it was expected that they can be used to replace phenol–formaldehyde (PF) adhesives. |
| first_indexed | 2024-03-06T07:28:39Z |
| format | Article |
| id | upm.eprints-13536 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:28:39Z |
| publishDate | 2010 |
| publisher | Pergamon Press |
| record_format | dspace |
| spelling | upm.eprints-135362015-10-30T00:43:24Z http://psasir.upm.edu.my/id/eprint/13536/ Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR Yeoh, Beng Hoong Pizzi, Antonio Md. Tahir, Paridah Pasch, Harald The MALDI-TOF mass spectrometry (MS) and solid state CP-MAS 13C Nuclear Magnetic Resonance (NMR) spectroscopic technique were introduced to characterize Acacia mangium tannin (condensed tannins). The MALDI-TOF MS illustrated a series of peaks corresponding to oligomers of condensed tannins of up to 11 flavonoid units (3200 Da). A. mangium condensed tannins were found to consist predominantly of prorobinetinidin combined with profisetinidin and prodelphinidin. Both the MALDI-TOF mass spectra and the solid state CP-MAS 13C NMR indicated that the A. mangium tannins obtained from Kudat, had an almost completely linear structure; In addition, Lembah Beringin, consist of “angular” polymer structure; and Tawau, has included “twice-angular” polymer structures present in oligomers type of up to 7 flavonoid units. The high degree of polymerization of linear, angular type, twice-angular structures and longer oligomer (3200 Da) chains have not been observed in previous studies of condensed tannins. The spectra also indicated that A. mangium tannins are more heavily branched and have higher degree of polymerization (>7.0) compared to commercial mimosa (A. mearnsii) tannin (4.9). Because tannins are phenolic, it was expected that they can be used to replace phenol–formaldehyde (PF) adhesives. Pergamon Press 2010-06 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/13536/1/Characterization%20of%20Acacia%20mangium%20polyflavonoid%20tannins%20by%20MALDI.pdf Yeoh, Beng Hoong and Pizzi, Antonio and Md. Tahir, Paridah and Pasch, Harald (2010) Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR. European Polymer Journal, 46 (6). pp. 1268-1277. ISSN 0014-3057; ESSN: 1873-1945 10.1016/j.eurpolymj.2010.03.002 |
| spellingShingle | Yeoh, Beng Hoong Pizzi, Antonio Md. Tahir, Paridah Pasch, Harald Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR |
| title | Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR |
| title_full | Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR |
| title_fullStr | Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR |
| title_full_unstemmed | Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR |
| title_short | Characterization of Acacia mangium polyflavonoid tannins by MALDI-TOF mass spectrometry and CP-MAS 13C NMR |
| title_sort | characterization of acacia mangium polyflavonoid tannins by maldi tof mass spectrometry and cp mas 13c nmr |
| url | http://psasir.upm.edu.my/id/eprint/13536/1/Characterization%20of%20Acacia%20mangium%20polyflavonoid%20tannins%20by%20MALDI.pdf |
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