Analysis of Vervain Flavonoids by HPLC/Diode Array Detector Method. Its Application to Quality Control

Valentão, Patrı́cia; Andrade, Paula B.; Areias, Filipe; Ferreres, Federico; Seabra, Rosa M.

doi:10.1021/jf990444i

Cited by 67 publications

(42 citation statements)

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“…This chromatographic profile should be featured by the fundamental attributions of "integrity" and "fuzziness" or "sameness" and "differences" so as to chemically represent the HM investigated [11,13]. It is suggested that with the help of chromatographic fingerprints obtained, the authentication and identification of herbal medicines can be accurately conducted ("integrity") even if the amount and/or concentration of the chemically characteristic constituents are not exactly the same for different samples of this HM (hence, "fuzziness") or, the chromatographic fingerprints could demonstrate both the "sameness" and "differences" between various samples successfully [11,14]. Thus, we should globally consider multiple constituents in the HM extracts, and not individually consider only one and/or two marker components for evaluating the quality of the HM products.…”

Section: Introductionmentioning

confidence: 99%

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Quality control of herbal medicines

Liang¹,

Xie²,

Chan³

2004

Journal of Chromatography B

495

401

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Different chromatographic and electrophoretic techniques commonly used in the instrumental inspection of herbal medicines (HM) are first comprehensively reviewed. Chemical fingerprints obtained by chromatographic and electrophoretic techniques, especially by hyphenated chromatographies, are strongly recommended for the purpose of quality control of herbal medicines, since they might represent appropriately the "chemical integrities" of the herbal medicines and therefore be used for authentication and identification of the herbal products. Based on the conception of phytoequivalence, the chromatographic fingerprints of herbal medicines could be utilized for addressing the problem of quality control of herbal medicines. Several novel chemometric methods for evaluating the fingerprints of herbal products, such as the method based on information theory, similarity estimation, chemical pattern recognition, spectral correlative chromatogram (SCC), multivariate resolution, etc. are discussed in detail with examples, which showed that the combination of chromatographic fingerprints of herbal medicines and the chemometric evaluation might be a powerful tool for quality control of herbal products.

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Section: Introductionmentioning

confidence: 99%

“…These excellent properties are the so-called dimension advantages proposed by Booksh and Kowalski [19]. A chemical fingerprint obtained by hyphenated chromatography, out of question, will become the primary tool for quality control of herbal medicines [13][14][15][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Quality control of herbal medicines

Liang¹,

Xie²,

Chan³

2004

Journal of Chromatography B

495

401

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“…In addition, these compounds are known to play an important role in maintaining fruit and vegetable quality, contributing to their organoleptic characteristics (Vaughan and Geissler, 1997 b), and have also been used for the quality control of several matrices 0308-8146/$ -see front matter Ó 2006 Elsevier Ltd. All rights reserved. doi:10.1016/j.foodchem.2006.02.013 Valentão, Andrade, Areias, Ferreres, and Seabra, 1999).…”

Section: Introductionmentioning

confidence: 99%

Tronchuda cabbage (Brassica oleracea L. var. costata DC) seeds: Phytochemical characterization and antioxidant potential

et al. 2007

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Tronchuda cabbage (Brassica oleracea L. var. costata DC) seeds were studied for their chemical composition and antioxidant capacity. Thirteen phenolic compounds were characterized and quantified by reversed-phase HPLC-DAD-MS/MS-ESI and HPLC-DAD, respectively: two sinapoylgentiobiose isomers, three sinapoylglucose isomers, kaempferol-3-(sinapoyl)sophorotrioside-7-glucoside, sinapoylcholine, kaempferol-3,7-diglucoside-4 0 -(sinapoyl)glucoside, three disinapoylgentiobiose isomers, 1,2,2 0 -trisinapoylgentiobiose and 1,2-disinapoylglucose. Seven organic acids (aconitic, citric, ascorbic, malic, quinic, shikimic and fumaric acids) were also identified and quantified by HPLC-UV. The aqueous extract of tronchuda cabbage seeds was investigated for its capacity to act as a scavenger of DPPH Å radical and reactive oxygen species (superoxide radical, hydroxyl radical and hypochlorous acid), exhibiting antioxidant capacity in a concentration-dependent manner against all radicals. These results may be attributed to the high content of hydroxycinnamic derivatives and ascorbic acid.

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“…Entretanto, outras substâncias como flavonóides, iridóides e naftoquinonas também são citados com freqüência [19][20][21][22][23][24][25].…”

Section: Constituintes Químicosunclassified

Aspectos químicos e biológicos do gênero Lippia enfatizando Lippia gracilis Schauer

2011

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Analysis of Vervain Flavonoids by HPLC/Diode Array Detector Method. Its Application to Quality Control

Cited by 67 publications

References 1 publication

Quality control of herbal medicines

Quality control of herbal medicines

Tronchuda cabbage (Brassica oleracea L. var. costata DC) seeds: Phytochemical characterization and antioxidant potential

Aspectos químicos e biológicos do gênero Lippia enfatizando Lippia gracilis Schauer

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