Relevant bibliographies by topics / HPLC-PDA/ESI-MSn

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'HPLC-PDA/ESI-MSn'

Author: Grafiati
Published: 10 January 2023
Last updated: 28 January 2023

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Journal articles on the topic "HPLC-PDA/ESI-MSn"

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Sobolev, Anatoly P., Arianna Di Lorenzo, Simone Circi, et al. "NMR, RP-HPLC-PDA-ESI-MSn, and RP-HPLC-FD Characterization of Green and Oolong Teas (Camellia sinensis L.)." Molecules 26, no. 17 (2021): 5125. http://dx.doi.org/10.3390/molecules26175125.

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Untargeted (NMR) and targeted (RP-HPLC-PDA-ESI-MSn, RP-HPLC-FD) analytical methodologies were used to determine the bioactive components of 19 tea samples, characterized by different production processes (common tea and GABA tea), degrees of fermentation (green and oolong teas), and harvesting season (autumn and spring). The combination of NMR data and a multivariate statistical approach led to a statistical model able to discriminate between GABA and non-GABA teas and green and oolong teas. Targeted analyses showed that green and GABA green teas had similar polyphenol and caffeine contents, b
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Mininel, Francisco José, Carlos Sérgio Leonardo Junior, Lívia Greghi Espanha, et al. "Characterization and Quantification of Compounds in the Hydroalcoholic Extract of the Leaves fromTerminalia catappaLinn. (Combretaceae) and Their Mutagenic Activity." Evidence-Based Complementary and Alternative Medicine 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/676902.

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Terminaliais a genus of Combretaceous plants widely distributed in tropical and subtropical regions. Thus, the aim of this study was to quantify the majority compounds of the hydroalcoholic extract (7 : 3, v/v) of the leaves fromT. catappaby HPLC-PDA, chemically characterize by hyphenated techniques (HPLC-ESI-IT-MSn) and NMR, and evaluate its mutagenic activity by theSalmonella/microsome assay onS. typhimuriumstrains TA98, TA97a, TA100, and TA102. The quantification of analytes was performed using an external calibration standard. Punicalagin is the most abundant polyphenol found in the leaves
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Shao, Yanlin, Jinjin Jiang, Liping Ran, Chunliang Lu, Cunxu Wei, and Youping Wang. "Analysis of Flavonoids and Hydroxycinnamic Acid Derivatives in Rapeseeds (Brassica napusL. var.napus) by HPLC-PDA–ESI(−)-MSn/HRMS." Journal of Agricultural and Food Chemistry 62, no. 13 (2014): 2935–45. http://dx.doi.org/10.1021/jf404826u.

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Elhadef, Khaoula, Slim Smaoui, Mariam Fourati, et al. "A Review on Worldwide Ephedra History and Story: From Fossils to Natural Products Mass Spectroscopy Characterization and Biopharmacotherapy Potential." Evidence-Based Complementary and Alternative Medicine 2020 (April 30, 2020): 1–22. http://dx.doi.org/10.1155/2020/1540638.

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Growing worldwide, the genus Ephedra (family Ephedraceae) had a medicinal, ecological, and economic value. The extraordinary morphological diversity suggests that Ephedra was survivor of an ancient group, and its antiquity is also supported by fossil data. It has recently been suggested that Ephedra appeared 8–32 million years ago, and a few megafossils document its presence in the Early Cretaceous. Recently, the high analytical power provided by the new mass spectrometry (MS) instruments is making the characterization of Ephedra metabolites more feasible, such as ephedrine series. In this reg
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Serra, Mariana B., Wermerson A. Barroso, Cláudia Rocha, et al. "Chemical Characterization and Wound Healing Property of Jacaranda decurrens Cham. (Bignoniaceae): An Experimental Study Based on Molecular Mechanisms." Evidence-Based Complementary and Alternative Medicine 2020 (April 21, 2020): 1–13. http://dx.doi.org/10.1155/2020/4749712.

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Background. Jacaranda decurrens Cham., known as carobinha, is prevalent in the Cerrado biome and presents popular use in treatment of dermatological diseases. The present study aimed to investigate the healing action of topical formulation of Jacaranda decurrens Cham. (FtEHJ) in mice cutaneous lesions. Methods. Phytochemical analysis of J. decurrens hydroalcoholic extract was carried out by using HPLC-PDA-ESI-MS and FIA-ESI-IT-MSn. Swiss mice were treated topically with formulation base (FtB) or Fibrinase® or ointment FtEHJ (15 mg/g; 50 mg/Kg). At the end of treatment periods, the inflammatory
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Pedreiro, Sónia, Sandrine da Ressurreição, Maria Lopes, et al. "Crepis vesicaria L. subsp. taraxacifolia Leaves: Nutritional Profile, Phenolic Composition and Biological Properties." International Journal of Environmental Research and Public Health 18, no. 1 (2020): 151. http://dx.doi.org/10.3390/ijerph18010151.

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Crepis vesicaria subsp. taraxacifolia (Cv) of Asteraceae family is used as food and in traditional medicine. However there are no studies on its nutritional value, phenolic composition and biological activities. In the present work, a nutritional analysis of Cv leaves was performed and its phenolic content and biological properties evaluated. The nutritional profile was achieved by gas chromatography (GC). A 70% ethanolic extract was prepared and characterized by HLPC-PDA-ESI/MSn. The quantification of chicoric acid was determined by HPLC-PDA. Subsequently, it was evaluated its antioxidant act
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Santos, Telmo N., Gustavo Costa, J. Pinto Ferreira, et al. "Antioxidant, Anti-Inflammatory, and Analgesic Activities ofAgrimonia eupatoriaL. Infusion." Evidence-Based Complementary and Alternative Medicine 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/8309894.

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Agrimony (Agrimonia eupatoriaL.) (Ae) is used in traditional medicine to treat inflammatory and oxidative related diseases. Therefore, this study focuses on the anti-inflammatory and analgesic potential of Ae infusion (AeI). Phenolic compounds characterization was achieved by HPLC-PDA-ESI/MSn. To evaluate antioxidant potential, 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide anion, hydroxyl radical, and SNAP assays were used. In vitro anti-inflammatory activity of AeI was investigated in LPS-stimulated macrophages by measuring the NO production. In vivo anti-inflammatory activity was validate
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Motta, Elizangela Pestana, Josivan Regis Farias, Arthur André Castro da Costa, et al. "The Anti-Virulence Effect of Vismia guianensis against Candida albicans and Candida glabrata." Antibiotics 11, no. 12 (2022): 1834. http://dx.doi.org/10.3390/antibiotics11121834.

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In folk medicine, Vismia guianensis is used to treat skin diseases and mycoses in the Amazon region. We evaluated the anti-Candida activity of the hydroalcoholic extract from the leaves of Vismia guianensis (EHVG). HPLC-PDA and FIA-ESI-IT-MSn were used to chemically characterize EHVG. The anti-Candida activity was determined in vitro by the minimum inhibitory concentrations (MIC) against Candida glabrata (ATCC-2001); Candida albicans (ATCC-90028, ATCC-14053, and ATCC-SC5314), and C. albicans clinical isolates. EHVG effects on adhesion, growth, and biofilm formation were also determined. Molecu
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Igual, Marta, Ângela Fernandes, Maria Inês Dias, et al. "The In Vitro Simulated Gastrointestinal Digestion Affects the Bioaccessibility and Bioactivity of Beta vulgaris Constituents." Foods 12, no. 2 (2023): 338. http://dx.doi.org/10.3390/foods12020338.

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Beetroot (Beta vulgaris L.) is an important root vegetable crop and a valuable food source of micronutrients and bioactive constituents. In this study, the bioaccessibility of minerals, organic acids, and betacyanins in beetroot powder during simulated gastrointestinal digestion was investigated, as well as the antioxidant activity of the final fractions of each phase of the process. Mineral elements were analyzed by inductively coupled plasma optical emission spectroscopy (ICP-OES), organic acids by ultra-fast liquid chromatography with photodiode array detection (UFLC-PDA), and betacyanins b
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Ingallina, Cinzia, Mattia Spano, Anatoly P. Sobolev, et al. "Characterization of Local Products for Their Industrial Use: The Case of Italian Potato Cultivars Analyzed by Untargeted and Targeted Methodologies." Foods 9, no. 9 (2020): 1216. http://dx.doi.org/10.3390/foods9091216.

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The chemical characterization of local Italian potato cultivars is reported to promote their preservation and use as high quality raw material in food industries. Twenty potato (Solanum tuberosum L.) cultivars from Piedmont and Liguria Italian regions were investigated using NMR (Nuclear Magnetic Resonance) and RP-HPLC-PDA-ESI-MSn (Reversed Phase High-Performance Liquid Chromatography with Photodiode Array Detector and Electrospray Ionization Mass Detector) methodologies. Water soluble and lipophilic metabolites were identified and quantified. With respect to literature data, a more complete 1
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Dissertations / Theses on the topic "HPLC-PDA/ESI-MSn"

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Isic, Aida. "A study of flavonols in bok choy and their anti-cancer properties." Thesis, 2017. https://vuir.vu.edu.au/37821/.

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Phytochemicals are defined as biologically active, non-nutrient (i.e. not essential for the maintenance of life), plant compounds. They are present in all fruits, vegetables, grains, and other plant foods, and have been shown to be beneficial to human health. Flavonols are a group of phytochemicals present in a variety of different vegetables including broccoli, Brussels sprouts, cabbage, cauliflower, kale and bok choy. Flavonols have been shown to exhibit powerful antioxidant activity as well as possess potential protective properties against certain cancers. The aim of this research wa
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Costa, Gustavo Franco Ferreira da. "Cymbopogon citratus and its polyphenols as potential phytotherapeutic products: an in vivo approach." Doctoral thesis, 2016. http://hdl.handle.net/10316/29994.

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Tese de doutoramento em Ciências Farmacêuticas, na especialidade de Farmacognosia e Fitoquímica, apresentada à Faculdade de Farmácia da Universidade de Coimbra<br>Cymbopogon citratus (DC). Stapf (Poaceae), commonly known as lemongrass, is a tropical perennial shrub originated from the Southeast Asia. This plant is reported to possess antifungal, insecticidal, anti-diabetic, anti-septic, anti-mutagenic, anti-carcinogenic activities as well as anti-inflammatory. In fact, aqueous extracts of dried leaves are used all over the year in folk medicine for the treatment of peptic ulcers and inflammato
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