FINGERPRINT ANALYSIS OF UNFRACTIONATED Piper PLANT EXTRACTS BY HPLC-UV-DAD COUPLED WITH CHEMOMETRIC METHODS
23 crude ethanolic extracts of Piper plants were analyzed by combining HPLC fingerprints and chemometric methods including principal component analysis (PCA), hierarchical clustering analysis (HCA) and parallel factor analysis (PARAFAC). All statistical analysis were carried out both with and without previous preprocessing by counting with alignment of the fingerprints by correlation optimized warping (COW) and several normalization methods. Normalization processes of autoscaling, range scaling and vast scaling resulted to be the better offering the most relevant information. Both direct two-way methods (PCA and HCA) and HCA after data minimization employing a three-way method (PARAFAC) were demonstrated to be useful in the establishment of chemical composition relationships among Piper samples, and resulting in agreement with phylogenic relationships previously reported in literature to some Piper species.
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Sociedad Chilena de Química
2012
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oai:scielo:S0717-970720120003000132019-02-19FINGERPRINT ANALYSIS OF UNFRACTIONATED Piper PLANT EXTRACTS BY HPLC-UV-DAD COUPLED WITH CHEMOMETRIC METHODSBERNAL,FREDDY ADELGADO,WILMAN ACUCA,LUIS E Piper Piperaceae fingerprints HPLC chemometrics PCA pest control potential 23 crude ethanolic extracts of Piper plants were analyzed by combining HPLC fingerprints and chemometric methods including principal component analysis (PCA), hierarchical clustering analysis (HCA) and parallel factor analysis (PARAFAC). All statistical analysis were carried out both with and without previous preprocessing by counting with alignment of the fingerprints by correlation optimized warping (COW) and several normalization methods. Normalization processes of autoscaling, range scaling and vast scaling resulted to be the better offering the most relevant information. Both direct two-way methods (PCA and HCA) and HCA after data minimization employing a three-way method (PARAFAC) were demonstrated to be useful in the establishment of chemical composition relationships among Piper samples, and resulting in agreement with phylogenic relationships previously reported in literature to some Piper species.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.57 n.3 20122012-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072012000300013en10.4067/S0717-97072012000300013 |
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BERNAL,FREDDY A DELGADO,WILMAN A CUCA,LUIS E |
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BERNAL,FREDDY A DELGADO,WILMAN A CUCA,LUIS E FINGERPRINT ANALYSIS OF UNFRACTIONATED Piper PLANT EXTRACTS BY HPLC-UV-DAD COUPLED WITH CHEMOMETRIC METHODS |
| author_facet |
BERNAL,FREDDY A DELGADO,WILMAN A CUCA,LUIS E |
| author_sort |
BERNAL,FREDDY A |
| title |
FINGERPRINT ANALYSIS OF UNFRACTIONATED Piper PLANT EXTRACTS BY HPLC-UV-DAD COUPLED WITH CHEMOMETRIC METHODS |
| title_short |
FINGERPRINT ANALYSIS OF UNFRACTIONATED Piper PLANT EXTRACTS BY HPLC-UV-DAD COUPLED WITH CHEMOMETRIC METHODS |
| title_full |
FINGERPRINT ANALYSIS OF UNFRACTIONATED Piper PLANT EXTRACTS BY HPLC-UV-DAD COUPLED WITH CHEMOMETRIC METHODS |
| title_fullStr |
FINGERPRINT ANALYSIS OF UNFRACTIONATED Piper PLANT EXTRACTS BY HPLC-UV-DAD COUPLED WITH CHEMOMETRIC METHODS |
| title_full_unstemmed |
FINGERPRINT ANALYSIS OF UNFRACTIONATED Piper PLANT EXTRACTS BY HPLC-UV-DAD COUPLED WITH CHEMOMETRIC METHODS |
| title_sort |
fingerprint analysis of unfractionated piper plant extracts by hplc-uv-dad coupled with chemometric methods |
| description |
23 crude ethanolic extracts of Piper plants were analyzed by combining HPLC fingerprints and chemometric methods including principal component analysis (PCA), hierarchical clustering analysis (HCA) and parallel factor analysis (PARAFAC). All statistical analysis were carried out both with and without previous preprocessing by counting with alignment of the fingerprints by correlation optimized warping (COW) and several normalization methods. Normalization processes of autoscaling, range scaling and vast scaling resulted to be the better offering the most relevant information. Both direct two-way methods (PCA and HCA) and HCA after data minimization employing a three-way method (PARAFAC) were demonstrated to be useful in the establishment of chemical composition relationships among Piper samples, and resulting in agreement with phylogenic relationships previously reported in literature to some Piper species. |
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Sociedad Chilena de Química |
| publishDate |
2012 |
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http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072012000300013 |
| work_keys_str_mv |
AT bernalfreddya fingerprintanalysisofunfractionatedpiperplantextractsbyhplcuvdadcoupledwithchemometricmethods AT delgadowilmana fingerprintanalysisofunfractionatedpiperplantextractsbyhplcuvdadcoupledwithchemometricmethods AT cucaluise fingerprintanalysisofunfractionatedpiperplantextractsbyhplcuvdadcoupledwithchemometricmethods |
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