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At present, cyanobacteria and their toxins (also known as cyanotoxins) constitute a major threat for freshwater resources worldwide. Cyanotoxin occurrence in water bodies around the globe is constantly increasing, whereas emerging, less studied or completely new variants and congeners of various chemical classes of cyanotoxins, as well as their degradation/transformation products are often detected. In addition to planctic cyanobacteria, benthic cyanobacteria, in many cases, appear to be important toxin producers, although far less studied and more difficult to manage and control. This Special Issue highlights novel research results on the structural diversity of cyanotoxins from planktic and benthic cyanobacteria, as well as on their expanding global geographical spread in freshwaters.

Research & information: general --- Environmental economics --- Meiktila Lake --- Raphidiopsis --- Microcystis --- cylindrospermopsin --- deoxycylindrospermopsin --- microcystin --- cyanobacteria --- cyanopeptides --- harmful bloom --- liquid chromatography-tandem mass spectrometry --- global natural product social networking (GNPS) --- dereplication strategy --- earthquakes --- harmful algal blooms --- sediment --- sediment cores --- co-occurrence --- toxicity --- plastics --- metals --- biocide --- anatoxin-a --- dihydroanatoxin-a --- Tychonema --- neurotoxicosis --- cyanotoxins --- macrophytes --- benthic --- tychoplanktic --- reservoir --- Maumee Bay --- Sandusky Bay --- Planktothrix --- anatoxin --- cyanotoxin detection --- harmful cyanobacterial blooms --- next-generation biomonitoring --- real-time PCR --- qPCR --- LC-MS/MS --- saxitoxin --- ESI-LC-MS/MS --- 16S rRNA phylogeny --- Azores --- eutrophication --- long term monitoring --- water quality --- microcystins --- anabaenopeptins --- microginins --- aeruginosins --- aeruginosamide --- SPE --- Lake Vegoritis --- deep-chlorophyll layers (DCLs) --- cyanobacterial toxins --- allelopathy --- bioactive metabolites --- hypoxia --- Georgian Bay --- peptide --- NRPS --- anabaenopeptin --- Synechococcus --- temperate lakes --- cyanotoxins (CTs) --- microcystins (MCs) --- volatile organic compounds (VOCs) --- taste and odor (T&O) compounds --- SPE-LC-MS/MS --- HS-SPME-GC/MS --- LC–qTRAP MS/MS --- fragmentation spectra --- structure elucidation --- cyanobacterial metabolites --- Greek freshwaters --- planktonic cyanobacteria --- blooms --- monitoring --- analysis --- mass spectrometry --- Liquid Chromatography with tandem mass spectrometry (LC-MS/MS) --- fish tissue --- shellfish --- detection methods --- n/a --- LC-qTRAP MS/MS

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At present, cyanobacteria and their toxins (also known as cyanotoxins) constitute a major threat for freshwater resources worldwide. Cyanotoxin occurrence in water bodies around the globe is constantly increasing, whereas emerging, less studied or completely new variants and congeners of various chemical classes of cyanotoxins, as well as their degradation/transformation products are often detected. In addition to planctic cyanobacteria, benthic cyanobacteria, in many cases, appear to be important toxin producers, although far less studied and more difficult to manage and control. This Special Issue highlights novel research results on the structural diversity of cyanotoxins from planktic and benthic cyanobacteria, as well as on their expanding global geographical spread in freshwaters.

Research & information: general --- Environmental economics --- Meiktila Lake --- Raphidiopsis --- Microcystis --- cylindrospermopsin --- deoxycylindrospermopsin --- microcystin --- cyanobacteria --- cyanopeptides --- harmful bloom --- liquid chromatography-tandem mass spectrometry --- global natural product social networking (GNPS) --- dereplication strategy --- earthquakes --- harmful algal blooms --- sediment --- sediment cores --- co-occurrence --- toxicity --- plastics --- metals --- biocide --- anatoxin-a --- dihydroanatoxin-a --- Tychonema --- neurotoxicosis --- cyanotoxins --- macrophytes --- benthic --- tychoplanktic --- reservoir --- Maumee Bay --- Sandusky Bay --- Planktothrix --- anatoxin --- cyanotoxin detection --- harmful cyanobacterial blooms --- next-generation biomonitoring --- real-time PCR --- qPCR --- LC-MS/MS --- saxitoxin --- ESI-LC-MS/MS --- 16S rRNA phylogeny --- Azores --- eutrophication --- long term monitoring --- water quality --- microcystins --- anabaenopeptins --- microginins --- aeruginosins --- aeruginosamide --- SPE --- Lake Vegoritis --- deep-chlorophyll layers (DCLs) --- cyanobacterial toxins --- allelopathy --- bioactive metabolites --- hypoxia --- Georgian Bay --- peptide --- NRPS --- anabaenopeptin --- Synechococcus --- temperate lakes --- cyanotoxins (CTs) --- microcystins (MCs) --- volatile organic compounds (VOCs) --- taste and odor (T&O) compounds --- SPE-LC-MS/MS --- HS-SPME-GC/MS --- LC-qTRAP MS/MS --- fragmentation spectra --- structure elucidation --- cyanobacterial metabolites --- Greek freshwaters --- planktonic cyanobacteria --- blooms --- monitoring --- analysis --- mass spectrometry --- Liquid Chromatography with tandem mass spectrometry (LC-MS/MS) --- fish tissue --- shellfish --- detection methods

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It is our pleasure to present this Special Issue of Pharmaceuticals, entitled “Applications of Liquid Chromatography in Analysis of Pharmaceuticals and Natural Products”. Plants produce a wide range of phytochemicals, which are secondary metabolites that confirm their identity and are used for the production of natural pharmaceuticals, among other things. The use of modern chromatographic techniques allows accurate quantitative and qualitative identification of the above-mentioned phytochemicals and their natural products. Liquid chromatography is one of the most efficient and robust specific techniques, due to the merits of convenience and strong separation ability, as well as a wide range of material applications for identification. Liquid chromatography is widely used for the analysis of plants, nutraceuticals, pharmaceuticals, natural product quality control, or quantitative determination of bioactive compounds. The most commonly used for the identification of different plant material and pharmaceuticals are the ultra- and high-performance liquid chromatography with UV-VIS, fluorescence, diode array, and equipped with mass spectrometry or tandem mass spectrometry detection methods. Therefore, for this Special Issue, we published works concerning the latest scientific news, insights, and advances in the field of innovation and applications of liquid chromatography in the analysis of phytochemicals and natural products.

Research & information: general --- Biology, life sciences --- Food & society --- in vitro biological activity --- bioactive compounds --- morphological parts --- medical plant --- Fragaria viridis --- creamy strawberry --- ellagitannins --- HPLC --- mass spectrometry --- fruit ripening --- antioxidant potential --- bisphenol A --- high-performance liquid chromatography --- ionic liquid --- dispersive liquid–liquid microextraction --- extraction kinetic studies --- tenofovir --- creatinine --- HPLC-UV --- hepatitis B virus --- human immunodeficiency virus --- anatoxin-a(s) --- neurotoxins --- cyanobacteria poisoning --- bio-accessibility --- isothiazolinones --- parabens --- cosmetics --- SPE --- UHPLC/DAD --- Gardenia jasminoides Ellis --- anti-diabetic activity --- LC-MS/MS --- GC-MS --- anti-oxidant --- Ficus glumosa --- polyphenols --- HPLC-ESI-MS/MS --- antiproliferative --- antioxidant --- Ayurveda --- Divya-Swasari-Vati --- herbal medicine --- UPLC/QToF MS --- validation --- Allium cepa L. --- Box–Behnken --- flavonoids --- quercetin glycosides --- liquid chromatography --- multiresponse optimization --- onion --- phenolic compounds --- UHPLC --- HPLC-MS/MS --- steroidal hormones --- anti-doping --- bovine blood --- equine blood --- natural products --- plant materials --- dietary supplements --- terpenes --- capillary liquid chromatography --- steroids --- skin permeability --- thin layer chromatography --- calculated physicochemical descriptors --- topical formulation --- anti-cellulite --- cosmetic --- monoterpenoids --- accelerated stability --- F0 concept --- steam sterilization --- sterilization safety --- glucose degradation products --- α-dicarbonyl compounds --- derivatization --- tandem mass spectrometry --- Geobacillus stearothermophilus --- paracetamol --- accuracy profile --- 3D printed --- formulation --- biorelevant media

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

It is our pleasure to present this Special Issue of Pharmaceuticals, entitled “Applications of Liquid Chromatography in Analysis of Pharmaceuticals and Natural Products”. Plants produce a wide range of phytochemicals, which are secondary metabolites that confirm their identity and are used for the production of natural pharmaceuticals, among other things. The use of modern chromatographic techniques allows accurate quantitative and qualitative identification of the above-mentioned phytochemicals and their natural products. Liquid chromatography is one of the most efficient and robust specific techniques, due to the merits of convenience and strong separation ability, as well as a wide range of material applications for identification. Liquid chromatography is widely used for the analysis of plants, nutraceuticals, pharmaceuticals, natural product quality control, or quantitative determination of bioactive compounds. The most commonly used for the identification of different plant material and pharmaceuticals are the ultra- and high-performance liquid chromatography with UV-VIS, fluorescence, diode array, and equipped with mass spectrometry or tandem mass spectrometry detection methods. Therefore, for this Special Issue, we published works concerning the latest scientific news, insights, and advances in the field of innovation and applications of liquid chromatography in the analysis of phytochemicals and natural products.

Research & information: general --- Biology, life sciences --- Food & society --- in vitro biological activity --- bioactive compounds --- morphological parts --- medical plant --- Fragaria viridis --- creamy strawberry --- ellagitannins --- HPLC --- mass spectrometry --- fruit ripening --- antioxidant potential --- bisphenol A --- high-performance liquid chromatography --- ionic liquid --- dispersive liquid–liquid microextraction --- extraction kinetic studies --- tenofovir --- creatinine --- HPLC-UV --- hepatitis B virus --- human immunodeficiency virus --- anatoxin-a(s) --- neurotoxins --- cyanobacteria poisoning --- bio-accessibility --- isothiazolinones --- parabens --- cosmetics --- SPE --- UHPLC/DAD --- Gardenia jasminoides Ellis --- anti-diabetic activity --- LC-MS/MS --- GC-MS --- anti-oxidant --- Ficus glumosa --- polyphenols --- HPLC-ESI-MS/MS --- antiproliferative --- antioxidant --- Ayurveda --- Divya-Swasari-Vati --- herbal medicine --- UPLC/QToF MS --- validation --- Allium cepa L. --- Box–Behnken --- flavonoids --- quercetin glycosides --- liquid chromatography --- multiresponse optimization --- onion --- phenolic compounds --- UHPLC --- HPLC-MS/MS --- steroidal hormones --- anti-doping --- bovine blood --- equine blood --- natural products --- plant materials --- dietary supplements --- terpenes --- capillary liquid chromatography --- steroids --- skin permeability --- thin layer chromatography --- calculated physicochemical descriptors --- topical formulation --- anti-cellulite --- cosmetic --- monoterpenoids --- accelerated stability --- F0 concept --- steam sterilization --- sterilization safety --- glucose degradation products --- α-dicarbonyl compounds --- derivatization --- tandem mass spectrometry --- Geobacillus stearothermophilus --- paracetamol --- accuracy profile --- 3D printed --- formulation --- biorelevant media