OOIR: Observatory of International Research

Papers

(The TQCC of Phytochemical Analysis is 4. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-11-01 to 2024-11-01.)

Article	Citations
Immunoprotective potential of Ayurvedic herb Kalmegh (Andrographis paniculata) against respiratory viral infections – LC–MS/MS and network pharmacology analysis	46
Phytochemical discrimination of Pinus species based on GC–MS and ATR‐IR analyses and their impact on Helicobacter pylori	28
Cleavage rules of mass spectrometry fragments and rapid identification of chemical components of Radix Paeoniae Alba using UHPLC‐Q‐TOF‐MS	27
Rapid classification and identification of chemical constituents in Epimedium koreanum Nakai by UPLC‐Q‐TOF‐MS combined with data post‐processing techniques	24
Attenuated total reflectance–Fourier transform infrared (ATR–FTIR) spectroscopy coupled with chemometric analysis for detection and quantification of adulteration in lavender and citronella essential	21
LC–MS/MS coupled with chemometric analysis as an approach for the differentiation of bulbus Fritillaria unibracteata and Fritillaria ussuriensis	18
Identification of flavonoid‐3‐O‐glycosides from leaves of Casearia arborea (Salicaceae) by UHPLC‐DAD‐ESI‐HRMS/MS combined with molecular networking and NMR	18
Comprehensive characterization of naturally occurring antioxidants from the twigs of mulberry (Morus alba) using on‐line high‐performance liquid chromatography coupled with chemical	17
Simultaneous quantitative analysis of ten bioactive flavonoids in Citri Reticulatae Pericarpium Viride (Qing Pi) by ultrahigh‐performance liquid chromatography and high‐resolution mass spectrometry co	17
On‐line coupling pressurised liquid extraction with two‐dimensional counter current chromatography for isolation of natural acetylcholinesterase inhibitors from Astragalus membranaceus	16
Metabolomics analysis of dandelions from different geographical regions in China	16
Opposite trends of glycosides and alkaloids in Dendrobium nobile of different age based on UPLC‐Q/TOF‐MS combined with multivariate statistical analyses	16
Chemical composition and antibacterial activity of 12 medicinal plant ethyl acetate extracts using LC–MS feature‐based molecular networking	16
Rapid classification and identification of chemical components of Astragali radix by UPLC‐Q‐TOF‐MS	16
Metabolomics and chemometrics of seven aromatic plants: Carob, eucalyptus, laurel, mint, myrtle, rosemary and strawberry tree	15
Screening and characterisation of potential antioxidant, hypoglycemic and hypolipidemic components revealed in Portulaca oleracea via multi‐target affinity ultrafiltration LC–MS and	15
Quality assessment of leaf extracts of 12 olive cultivars and impact of seasonal variation based on UV spectroscopy and phytochemcial content using multivariate analyses	15
Chemical comparison and discrimination of two plant sources of Angelicae dahuricae Radix, Angelica dahurica and Angelica dahurica var. formosana, by HPLC‐Q/TOF‐MS and quantitative	15
LC–MS metabolomics analysis of Stevia rebaudiana Bertoni leaves cultivated in Malaysia in relation to different developmental stages	15
Correlations between phytochemical fingerprints of Moringa oleifera leaf extracts and their antioxidant activities revealed by chemometric analysis	15
Gas chromatography–mass spectrometry (GC–MS) profiling reveals substantial metabolome diversity in seabuckthorn (Hippophae rhamnoides L.) berries originating from different geographi	14
Identification of Forsythia suspensa (Thunb.) Vahl in different harvest periods using intelligent sensory technologies, HPLC characteristic fingerprint coupled with chemometrics	14
Computational multi‐target approach to target essential enzymes of Leishmania donovani using comparative molecular dynamic simulations and MMPBSA analysis	14
Determination of monosaccharides in Lycium barbarum fruit polysaccharide by an efficient UHPLC‐QTRAP‐MS/MS method	14
Establishment and validation of the quantitative analysis of multi‐components by single marker for the quality control of Qishen Yiqi dripping pills by high‐performance liquid chromatography with char	14

Identifying new compounds with potential pharmaceutical and physiological activity in Areca catechu and Areca triandra via a non‐targeted metabolomic approach	13
Response surface modeling and optimization of the extraction conditions using lactic acid‐based deep eutectic solvents as green alternative extraction media for Mentha pulegium	12
Analysis of the characteristic compounds of Citri Sarcodactylis Fructus from different geographical origins	12
Instant determination of the artemisinin from various Artemisia annua L. extracts by LC‐ESI‐MS/MS and their in‐silico modelling and in vitro antiviral activity studies against SAR	12
Extended application of deep learning combined with 2DCOS: Study on origin identification in the medicinal plant of Paris polyphylla var. yunnanensis	12
Leaves of Cannabis sativa and their trichomes studied by DESI and MALDI mass spectrometry imaging for their contents of cannabinoids and flavonoids	12
Advancing quantification methods for polyphenols in brown seaweeds—applying a selective qNMR method compared with the TPC assay	12
Integrating chemical profiling and network pharmacology analysis based on anti‐inflammatory effects for quality control of Scutellaria barbata	11
DNA meta‐barcoding using rbcL based mini‐barcode revealed presence of unspecified plant species in Ayurvedic polyherbal formulations	11
HS‐SPME coupled with GC–MS for elucidating differences between the volatile components in wild and cultivated Atractylodes chinensis	11
Rapid characterisation of xanthine oxidase inhibitors from the flowers of Chrysanthemum morifolium Ramat. Using metabolomics approach	11
Metabolic differences of two Ferula species as potential sources of galbanum: An NMR‐based metabolomics study	10
The composition differences between small black beans and big black beans from different habitats and its effects on the processing of Polygonum multiflorum	10
In vivo anti‐inflammatory activity of Fabaceae species extracts screened by a new ex vivo assay using human whole blood	10
Identification and quantification of eight alkaloids in Aconitum heterophyllum using UHPLC‐DAD‐QTOF‐IMS: A valuable tool for quality control	10
Optimisation of microwave‐assisted extraction and functional elucidation of bioactive compounds from Cola nitida pod	10
Anticoagulant activity analysis and origin identification of Panax notoginseng using HPLC and ATR‐FTIR spectroscopy	10
Exploration of a ternary deep eutectic solvent for the efficient extraction of plantamajoside, acteoside, quercetin and kaempferol from Plantago asiatica L.	10
Exploring correlations between MS and NMR for compound identification using essential oils: A pilot study	9
Screening of anti‐thrombin active components from Ligusticum chuanxiong by affinity‐ultrafiltration coupled with HPLC‐Q‐Orbitrap‐MSⁿ	9
Dereplication of phenolic derivatives of three Erythroxylum species using liquid chromatography coupled with ESI‐MSⁿ and HRESIMS	9
Discovery of potential Q‐marker of traditional Chinese medicine based on chemical profiling, chemometrics, network pharmacology, and molecular docking: Centipeda minima as an example	9
Comparative metabolomics analysis revealed biomarkers and distinct flavonoid biosynthesis regulation in Chrysanthemum mongolicum and C. rhombifolium	8
Using ¹³C‐NMR dereplication to aid in the identification of xanthones present in the stem bark extract of Calophyllum brasiliense	8
Green NP‐HPTLC and green RP‐HPTLC methods for the determination of thymoquinone: A contrast of validation parameters and greenness assessment	8
Colour, chemical compounds, and antioxidant capacity of Astragali Radix based on untargeted metabolomics and targeted quantification	8
Discrimination between Zingiberis Rhizoma Praeparatum and carbonised ginger by colour measurement and fingerprint analysis	8
Compositional analysis of essential oil and solvent extracts of Norway spruce sprouts by ultrahigh‐resolution mass spectrometry	8
Discrimination between raw and ginger juice processed Magnoliae officinalis cortex based on HPLC and Heracles NEO ultra‐fast gas phase electronic nose	8
Simultaneous qualitative and quantitative analysis of 10 bioactive flavonoids in Aurantii Fructus Immaturus (Zhishi) by ultrahigh‐performance liquid chromatography and high‐resolution tandem mass spec	8
Chemical characterisation of Pelargonium sidoides root based on LC‐QToF‐MS non‐target screening strategies	8
Data Fusion‐based Discovery (DAFdiscovery) pipeline to aid compound annotation and bioactive compound discovery across diverse spectral data	7
Study on the spatial distribution of coumarins in Angelica dahurica root by MALDI‐TOF‐MSI	7
Evaluation of adulteration in distillate samples of Rosa damascena Mill using colorimetric sensor arrays, chemometric tools and dispersive liquid–liquid microextraction‐GC‐MS	7
UPLC–MS/MS method for the determination of the herb composition of Tangshen formula and the in vivo pharmacokinetics of its metabolites in rat plasma	7
Detailed investigation of the composition and transformations of phenolic compounds in fresh and fermented Vaccinium floribundum berry extracts by high‐resolution mass spectrometry and bioinfor	7
A reliable quantitative method for determining CBD content and release from transdermal patches in Franz cells	7
Quality evaluation of Codonopsis Radix and processed products based on the analysis of monosaccharides and oligosaccharides by liquid chromatography coupled with charged aerosol detector	7
A supercritical fluid workflow for the quality assessment of herbal drugs and commercial preparations from Rhodiola rosea	7
Response surface methodology optimised solvothermal system enables an efficient extraction of echinacoside and oleuropein from Syringa pubescens Turcz	7
Profiling and quantitation of alkaloids in different parts of Sophora alopecuroides L. extracts by high‐performance liquid chromatography with electrospray ionisation ion mobility spectrometry	7
Rapid estimation of piperine in black pepper: Exploration of Raman spectroscopy	7
From sample preparation to NMR‐based metabolic profiling in food commodities: The case of table olives	7
Quantitative profiling of comprehensive composition in compound herbal injections: An NMR approach applied on Shenmai injection	7
Comparative evaluation of phenolic profile and antioxidant activity of new sweet cherry (Prunus avium L.) genotypes in Turkey	7
A new specific method for isolation of tomentosin with a high yield from Inula viscosa (L.) and determination of its bioactivities	7
Efficiency and selectivity of ionic liquids in microwave‐assisted extraction of major lichen phenolic compounds: a scalable process with recycling of ionic liquids	7
Highly clean recovery of natural antioxidants from lemon peels: Lactic acid‐based automatic solvent extraction	7
High‐throughput LC–MS method for the rapid characterisation and comparative analysis of multiple ingredients of four hawthorn leaf extracts	7
Volatile flavour identification and odour complexity of radix Angelicae sinensis by electronic nose, integrated gas chromatography–mass spectrometry/olfactometry and comprehensive two‐dimension	7

A multivariate curve resolution‐alternating least squares (MCR‐ALS) technology assisted ¹H‐NMR methodology for multi‐component quantitation of Trichosanthis Pericarpium injection	7
Recent bioanalytical methods for the isolation of bioactive natural products from genus Codonopsis	6
The determination of monosaccharide in different years Qingzhuan Dark Tea polysaccharide by liquid chromatography–mass spectrometry	6
Application of multivariate linear regression models for selection of deep eutectic solvent for extraction of apigenin and luteolin from Chrysanthemum indicum L.	6
Identification of geographical origin and different parts of Wolfiporia cocos from Yunnan in China using PLS‐DA and ResNet based on FT‐NIR	6
Identification of alkaloidal compounds from leaves and roots of Stephania succifera by HPLC‐QTOF‐MS and prediction of potential bioactivity with PharmMapper	6
Untargeted UHPLC‐Q‐TOF‐HRMS based determination of discrimating compounds for oak species Quercus robur L. and Quercus petraea Liebl. identification	6
Predictive quality control for compound liquorice tablets by the intelligent mergence fingerprint method combined with the systematic quantitative fingerprint method	6
Quantification of crocin, picrocrocin and safranal in saffron stigmas obtained from sounded corms with acoustic waves	6
High‐performance thin‐layer chromatography coupled attenuated total reflectance‐Fourier‐transform infrared and NMR spectroscopy‐based identification of α‐amylase inhibitor from the aerial part	6
Gene‐targeted molecular phylogeny, phytochemical analysis, antibacterial and antifungal activities of some medicinal plant species cultivated in Egypt	6
Two‐dimensional chromatography in screening of bioactive components from natural products	6
Integrated metabolomic and transcriptomic analysis revealed the flavonoid biosynthesis and regulation in Areca catechu	6
Identification of antidiabetic components in Uncariae Rammulus Cum Uncis based on phytochemical isolation and spectrum–effect relationship analysis	6
Rapid analysis and identification of dianthrone glycosides in Polygoni Multiflori Caulis based on enrichment of macroporous absorbent resin and UPLC‐Q‐TOF‐MS/MS	6
Hydrogen‐rich solvent method in phytochemical extraction: Potential mechanisms and perspectives	6
Metabolomic analysis reveals the valuable bioactive compounds of Ardisia elliptica	6
Review on NMR as a tool to analyse natural products extract directly: Molecular structure elucidation and biological activity analysis	5
Cellular localisation and quantification of Camptothecin in different plant parts of Nothapodytes nimmoniana (J. Graham) Mabberley of Sri Lankan origin	5
Effect of folic acid‐linked chitosan‐coated PLGA‐based curcumin nanoparticles on the redox system of glioblastoma cancer cells	5
Simultaneous quantitation of kavalactones in kava dry extracts: comparison of multi‐standards and single standard validation approaches	5
Comparison of Lycium barbarum fruits polysaccharide from different regions of China by acidic hydrolysate fingerprinting‐based HILIC‐ELSD‐ESI‐TOF‐MS combined with chemometrics analys	5
Qualitative and quantitative analysis of the major components in Qinghao Biejia decoction by UPLC‐Orbitrap Fusion‐MS/MS and UPLC‐QQQ‐MS/MS and evaluation of their antibacterial activities	5
An innovative extraction strategy for herbal medicine by adopting p‐sulphonatocalix[6]/[8]arenes	5
NMR as a tool for compound identification in mixtures	5
Chemical characterisation by UPLC‐Q‐ToF‐MS/MS and antibacterial potential of Coffea arabica L. leaves: A coffee by‐product	5
Quality assessment method for Chinpi, dried Citrus spp. peel and its derived Kampo medicines using specific monoclonal antibody against hesperidin	5
Development of approach for flavonoid profiling of biotechnological raw materials Iris sibirica L. by HPLC with high‐resolution tandem mass spectrometry	5
Advanced data post‐processing method for rapid identification and classification of the major triterpenoids of Alismatis rhizoma by ultra‐performance liquid chromatography coupled with quadrupole time	5
Mass spectrometry and synchrotron‐FTIR microspectroscopy reveal the anti‐inflammatory activity of Bua Bok extracts	5
Quantitative analysis of methoxyflavones discriminates between the two types of Kaempferia parviflora	5
Rapid quality evaluation of four kinds of Polygoni Multiflori Radix Praeparata by electronic eye combined with chemometrics	5
Four almost unexplored species of Brazilian Connarus (Connaraceae): Chemical composition by ESI‐QTof‐MS/MS–GNPS and a pharmacologic potential	5
Advances in the quality control of fenugreek seeds using chromatographic, spectroscopic and DNA‐based techniques: A comprehensive review	5
Assessing the concentration of conjugated fatty acids within pomegranate seed oil using quantitative nuclear magnetic resonance (qNMR)	5
Fingerprint combining with quantitative analysis of multi‐components by single marker for quality control of Chenxiang Huaqi tablets	5
From metabolomic analysis to quality assessment and biosynthetic insight in traditional Chinese medicine: Mulberry tree as a case study	5
Systematical characterization and comparison of saponins in Achyranthes bidentata Blume and its three analogous species	4
Metabolomics study of the desiccation and recovery process in the resurrection plants Ramonda serbica and R. nathaliae	4
6‐Gingerol contents of several ginger varieties of Northeast India and correlation of their antioxidant activity in respect to phenolics and flavonoids contents	4
Development of new and validated HPTLC methods for the qualitative and quantitative analysis of hyperforin, hypericin and hyperoside contents in Hypericum species	4
Novel fluorescence spectroscopy method coupled with N‐PLS‐R and PLS‐DA models for the quantification of cannabinoids and the classification of cannabis cultivars	4
New insights into the Van Krevelen diagram: Automated molecular formula determination from HRMS for a large chemical profiling of lichen extracts	4
Encapsulation of Origanum onites essential oil with different wall material using spray drying	4
Comparative metabolic profiling of mycelia, fermentation broth, spore powder and fruiting bodies of Ophiocordyceps gracilis by LC–MS/MS	4
An integrated chemical analysis and network pharmacology approach to identify quality markers of Actinidia eriantha Benth radix on gastric cancer	4
Chromatographic fingerprint combined with quantitative analysis of multi‐components by single‐marker for quality control of total lignans from Fructus arctii by high‐performance liquid chromato	4
Geographical and seasonal phytochemical variation of Artemisia afra Jacq. ex Willd	4
A comparative study of surface properties of Urtica dioica (nettle) leaves, roots, and seeds and examination of their ability to separate xylene isomers	4
Quality evaluation of Tetrastigma hemsleyanum different parts based on quantitative analysis of 42 bioactive constituents combined with multivariate statistical analysis	4
Quality evaluation of Lonicerae Japonicae Flos from different origins based on high‐performance liquid chromatography (HPLC) fingerprinting and multicomponent quantitative analysis combined with chemi	4
Comprehensive quality evaluation of processed Scrophulariae Radix from different regions of China using HPLC coupled with chemometrics methods	4
Network pharmacology and fingerprint for the integrated analysis of mechanism, identification and prediction in Panax notoginseng	4
Study on the technology of efficient extraction of eleutheroside E from Acanthopanax senticosus by green solvent DES	4
Correlation of chemical profiles obtained from ¹H‐NMR and LC–MS metabolomics with α‐glucosidase inhibition activity for varietal selections of Ficus deltoidea	4
Quality marker prediction in Trillium tschonoskii based on UHPLC–MS chemical characterisation and network pharmacology	4
Analysis of 3‐nitropropionic acid in Fabaceae plants by HPLC‐MS/MS	4
Ligand fishing of monoamine oxidase B inhibitors from Platycodon grandiflorus (Jacq.) A.DC. roots by the enzyme functionalised magnetic nanoparticles	4
Extraction of essential oils from tea tree (Melaleuca alternifolia) and lemon grass (Cymbopogon citratus) using betaine‐based deep eutectic solvent (DES)	4
Quality analysis of hawthorn leaves (the leaves of Crataegus pinnatifida Bge. var major N.E.Br) in different harvest time	4
Untargeted metabolomics study and identification of potential biomarkers in the six sections of the genus Stachys L. (Lamiaceae) using HPLC‐MQ‐API‐MS/MS	4