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Klein-Júnior LC, Viaene J, Tuenter E, Salton J, Gasper AL, Apers S, Andries JP, Pieters L, Henriques AT, Vander Heyden Y. The use of chemometrics to study multifunctional indole alkaloids from Psychotria nemorosa (Palicourea comb. nov.). Part II: Indication of peaks related to the inhibition of butyrylcholinesterase and monoamine oxidase-A. J Chromatogr A 2016; 1463:71-80. [DOI: 10.1016/j.chroma.2016.08.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 08/01/2016] [Accepted: 08/02/2016] [Indexed: 01/12/2023]
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Alvarez-Zapata R, Sánchez-Medina A, Chan-Bacab M, García-Sosa K, Escalante-Erosa F, García-Rodríguez RV, Peña-Rodríguez LM. Chemometrics-enhanced high performance liquid chromatography-ultraviolet detection of bioactive metabolites from phytochemically unknown plants. J Chromatogr A 2015; 1422:213-221. [PMID: 26515384 DOI: 10.1016/j.chroma.2015.10.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 09/28/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
Abstract
This work describes the use of Colubrina greggii as a model to investigate the use of chemometric analysis combined with data from a leishmanicidal bioassay, using Principal Component Analysis (PCA) and Orthogonal Projections to Latent Structures (O-PLS), to detect biologically active natural products in crude extracts from plants having little or no phytochemical information. A first analysis of the HPLC-UV profiles of the extract and its semi-purified fractions using both Principal Component Analysis (PCA) and Orthogonal Partial Least Squares (O-PLS) indicated that the components at tR 48.2, 48.7, 51.8min correlated with the variation in bioactivity. However, a further O-PLS analysis of the HPLC-UV profiles of fractions obtained through a final semi-preparative HPLC purification showed two components at tR 48.7 and 49.5min which correlated with the variation of the bioactivity in a high performance predictive model, with high determination coefficient, high correlation coefficient values (R(2) and Q(2)=0.99) and a low root mean square error (RMSE=0.018). This study demonstrates that the association of chemometric analysis with bioassay results can be an excellent strategy for the detection and isolation of bioactive metabolites from phytochemically unknown plant crude extracts.
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Affiliation(s)
- Radamés Alvarez-Zapata
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 N. 130, Col. Chuburná, CP 97200 Mérida, Yucatán, Mexico
| | - Alberto Sánchez-Medina
- Unidad de Servicios de Apoyo en Resolución Analítica, Universidad Veracruzana, Av. Dr. Luis Castelazo Ayala S/N, Col. Industrial Ánimas, CP 91190 Xalapa, Veracruz, Mexico
| | - Manuel Chan-Bacab
- Departamento de Microbiología Ambiental y Biotecnología, Universidad Autónoma de Campeche, Av. Agustín Melgar S/N, Col. Buenavista, CP 24039 Campeche, Campeche, México
| | - Karlina García-Sosa
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 N. 130, Col. Chuburná, CP 97200 Mérida, Yucatán, Mexico
| | - Fabiola Escalante-Erosa
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 N. 130, Col. Chuburná, CP 97200 Mérida, Yucatán, Mexico
| | - Rosa Virginia García-Rodríguez
- Unidad de Servicios de Apoyo en Resolución Analítica, Universidad Veracruzana, Av. Dr. Luis Castelazo Ayala S/N, Col. Industrial Ánimas, CP 91190 Xalapa, Veracruz, Mexico
| | - Luis Manuel Peña-Rodríguez
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 N. 130, Col. Chuburná, CP 97200 Mérida, Yucatán, Mexico.
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Sharif KM, Rahman MM, Azmir J, Khatib A, Sabina E, Shamsudin SH, Zaidul ISM. Multivariate analysis of PRISMA optimized TLC image for predicting antioxidant activity and identification of contributing compounds from Pereskia bleo. Biomed Chromatogr 2015; 29:1826-33. [PMID: 26033701 DOI: 10.1002/bmc.3503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 04/02/2015] [Accepted: 04/28/2015] [Indexed: 11/09/2022]
Abstract
Multivariate analysis of thin-layer chromatography (TLC) images was modeled to predict antioxidant activity of Pereskia bleo leaves and to identify the contributing compounds of the activity. TLC was developed in optimized mobile phase using the 'PRISMA' optimization method and the image was then converted to wavelet signals and imported for multivariate analysis. An orthogonal partial least square (OPLS) model was developed consisting of a wavelet-converted TLC image and 2,2-diphynyl-picrylhydrazyl free radical scavenging activity of 24 different preparations of P. bleo as the x- and y-variables, respectively. The quality of the constructed OPLS model (1 + 1 + 0) with one predictive and one orthogonal component was evaluated by internal and external validity tests. The validated model was then used to identify the contributing spot from the TLC plate that was then analyzed by GC-MS after trimethylsilyl derivatization. Glycerol and amine compounds were mainly found to contribute to the antioxidant activity of the sample. An alternative method to predict the antioxidant activity of a new sample of P. bleo leaves has been developed.
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Affiliation(s)
- K M Sharif
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Sultan Ahmed Shah, 25200, Kuantan, Pahang, Malaysia
| | - M M Rahman
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Sultan Ahmed Shah, 25200, Kuantan, Pahang, Malaysia
| | - J Azmir
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Sultan Ahmed Shah, 25200, Kuantan, Pahang, Malaysia
| | - A Khatib
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Sultan Ahmed Shah, 25200, Kuantan, Pahang, Malaysia
| | - E Sabina
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Sultan Ahmed Shah, 25200, Kuantan, Pahang, Malaysia
| | - S H Shamsudin
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Sultan Ahmed Shah, 25200, Kuantan, Pahang, Malaysia
| | - I S M Zaidul
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Sultan Ahmed Shah, 25200, Kuantan, Pahang, Malaysia
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Viaene J, Goodarzi M, Dejaegher B, Tistaert C, Hoang Le Tuan A, Nguyen Hoai N, Chau Van M, Quetin-Leclercq J, Vander Heyden Y. Discrimination and classification techniques applied on Mallotus and Phyllanthus high performance liquid chromatography fingerprints. Anal Chim Acta 2015; 877:41-50. [DOI: 10.1016/j.aca.2015.02.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 02/02/2015] [Accepted: 02/10/2015] [Indexed: 10/24/2022]
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Orzel J, Daszykowski M, Kazura M, de Beer D, Joubert E, Schulze AE, Beelders T, de Villiers A, Malherbe CJ, Walczak B. Modeling of the total antioxidant capacity of rooibos (Aspalathus linearis) tea infusions from chromatographic fingerprints and identification of potential antioxidant markers. J Chromatogr A 2014; 1366:101-9. [PMID: 25283576 DOI: 10.1016/j.chroma.2014.09.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/12/2014] [Accepted: 09/12/2014] [Indexed: 02/06/2023]
Abstract
Models to predict the total antioxidant capacity (TAC) of rooibos tea infusions from their chromatographic fingerprints and peak table data (content of individual phenolic compounds), obtained using HPLC with diode array detection, were developed in order to identify potential antioxidant markers. Peak table data included the content of 12 compounds, namely phenylpyruvic acid-2-O-glucoside, aspalathin, nothofagin, isoorientin, orientin, ferulic acid, quercetin-3-O-robinobioside, vitexin, hyperoside, rutin, isovitexin and isoquercitrin. The TAC values, measured using the oxygen radical absorbance capacity (ORAC) and DPPH radical scavenging assays, could be predicted from the peak table data or the chromatographic fingerprints (prediction errors 9-12%) using partial least squares (PLS) regression. Prediction models created from samples of only two production years could additionally be used to predict the TAC of samples from another production year (prediction errors<13%) indicating the robustness of the models in a quality control environment. Furthermore, the uninformative variable elimination (UVE)-PLS method was used to identify potential antioxidant markers for rooibos infusions. All individual phenolic compounds that were quantified were selected as informative variables, except vitexin, while UVE-PLS models developed from chromatographic fingerprints indicated additional antioxidant markers, namely (S)-eriodictyol-6-C-glucoside, (R)-eriodictyol-6-C-glucoside, aspalalinin and two unidentified compounds. The potential antioxidant markers should be validated prior to use in quality control of rooibos tea.
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Affiliation(s)
- Joanna Orzel
- Institute of Chemistry, The University of Silesia, 9 Szkolna Street, 40-006 Katowice, Poland
| | - Michal Daszykowski
- Institute of Chemistry, The University of Silesia, 9 Szkolna Street, 40-006 Katowice, Poland.
| | - Malgorzata Kazura
- Institute of Chemistry, The University of Silesia, 9 Szkolna Street, 40-006 Katowice, Poland
| | - Dalene de Beer
- Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa
| | - Elizabeth Joubert
- Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa; Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa
| | - Alexandra E Schulze
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa
| | - Theresa Beelders
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa
| | - André de Villiers
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa
| | - Christiaan J Malherbe
- Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa
| | - Beata Walczak
- Institute of Chemistry, The University of Silesia, 9 Szkolna Street, 40-006 Katowice, Poland
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Wong KH, Razmovski-Naumovski V, Li KM, Li GQ, Chan K. Differentiating Puerariae Lobatae Radix and Puerariae Thomsonii Radix using HPTLC coupled with multivariate classification analyses. J Pharm Biomed Anal 2014; 95:11-9. [DOI: 10.1016/j.jpba.2014.02.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 02/10/2014] [Accepted: 02/11/2014] [Indexed: 12/29/2022]
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Implementation of chemometric techniques for evaluation of antioxidant properties of Camellia sinensis extracts. OPEN CHEM 2014. [DOI: 10.2478/s11532-014-0530-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractIn this study, antioxidant properties of commercial green teas and dietary supplements containing Camellia sinensis extracts were evaluated. Extracts were examined using two antioxidant assays (DPPH· radical method and ABTS·+ cation radical method). A Folin-Ciocalteu assay was used to evaluate the total polyphenol content in the extracts. In order to compare and characterize the investigated Camellia sinensis extracts, chemometric techniques based on fingerprint chromatograms, antioxidant activity and total polyphenol content were applied. Application of chemometric methods allowed for reduction of multidimensionality of the data set and grouped the samples into differentiable clusters. The relationship between the antioxidant activity and total polyphenol content was also assessed. The results indicated that extracts with the higher polyphenolic content exhibited the stronger antiradical activity against both DPPH· radicals and ABTS·+ cation radicals. The multivariate calibration technique (such as a tree regression algorithm) can be a useful tool for rapid determining the antioxidant activity of a herbal product based on its fingerprint chromatogram
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Xiao S, Zhang LF, Zhang X, Li SM, Xue FQ. Tracing antibacterial compounds from Acalypha australis
Linn. by spectrum-effect relationships and semi-preparative HPLC. J Sep Sci 2013; 36:1667-76. [DOI: 10.1002/jssc.201201202] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Revised: 02/28/2013] [Accepted: 02/28/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Sui Xiao
- Key Laboratory of Veterinary Drug Safety Evaluation and Residues Research; Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences; Shanghai China
| | - Li-Fang Zhang
- Key Laboratory of Veterinary Drug Safety Evaluation and Residues Research; Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences; Shanghai China
| | - Xu Zhang
- School of Pharmacy; Shanghai Jiaotong University; Shanghai China
| | - Su-Mei Li
- Key Laboratory of Veterinary Drug Safety Evaluation and Residues Research; Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences; Shanghai China
| | - Fei-Qun Xue
- Key Laboratory of Veterinary Drug Safety Evaluation and Residues Research; Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences; Shanghai China
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Deconinck E, Sacre PY, Courselle P, De Beer JO. Chromatography in the Detection and Characterization of Illegal Pharmaceutical Preparations. J Chromatogr Sci 2013; 51:791-806. [DOI: 10.1093/chromsci/bmt006] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Gad HA, El-Ahmady SH, Abou-Shoer MI, Al-Azizi MM. Application of chemometrics in authentication of herbal medicines: a review. PHYTOCHEMICAL ANALYSIS : PCA 2013; 24:1-24. [PMID: 22678654 DOI: 10.1002/pca.2378] [Citation(s) in RCA: 178] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 04/29/2012] [Accepted: 04/30/2012] [Indexed: 05/22/2023]
Abstract
INTRODUCTION Herbal medicines (HM) and their preparations have been widely used for hundreds of years all over the world. However, they have not been officially recognised due to a lack of adequate or accepted research methodology for their evaluation. OBJECTIVE To present a concise overview of the recent applications of chemometrics in solving the ambiguity of herbal medicine authentication during the last two decades. METHODOLOGY Studies involving the applications of chemometric analysis in combination with different analytical methods were classified according to the method of analysis used including chromatographic (HPLC, GC and CE), spectroscopic (NMR, IR, UV and ICP) and genetic analysis (RAPD). The purpose of each of these studies was classified into one of three main categories: taxonomic discrimination, quality assessment or classification between plants of different geographic origins. RESULTS This review comprises over 150 studies, covering the past two decades, emphasising the significance of chemometric methods in the discrimination of many herbs from closely related species and from adulterants, based on the principal bioactive components and phytochemical diversity. Furthermore, the differentiation between varieties and hybrids was achieved in addition to the prediction of the active components by quantitative methods of analysis. Discrimination according to geographical origin and localities, processing methods, DNA profiling and metabolomics were also efficiently investigated. CONCLUSION Chemometric methods have provided an efficient and powerful tool for the quality control and authentication of different herbs.
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Affiliation(s)
- Haidy A Gad
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abassia, 11566-Cairo, Egypt.
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Potentially antioxidant compounds indicated from Mallotus and Phyllanthus species fingerprints. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 910:114-21. [DOI: 10.1016/j.jchromb.2012.06.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2012] [Revised: 05/08/2012] [Accepted: 06/21/2012] [Indexed: 11/17/2022]
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Tistaert C, Dejaegher B, Chataigné G, Rivière C, Nguyen Hoai N, Van MC, Quetin-Leclercq J, Vander Heyden Y. Potential antioxidant compounds in Mallotus species fingerprints. Part II: Fingerprint alignment, data analysis and peak identification. Anal Chim Acta 2012; 721:35-43. [DOI: 10.1016/j.aca.2012.01.058] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Revised: 11/10/2011] [Accepted: 01/27/2012] [Indexed: 11/28/2022]
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Tistaert C, Dejaegher B, Heyden YV. Chromatographic separation techniques and data handling methods for herbal fingerprints: A review. Anal Chim Acta 2011; 690:148-61. [DOI: 10.1016/j.aca.2011.02.023] [Citation(s) in RCA: 181] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 02/04/2011] [Accepted: 02/09/2011] [Indexed: 10/18/2022]
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