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Phytochemical Analysis: PCA

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https://www.readbyqxmd.com/read/29430752/discrimination-of-cynanchum-wilfordii-and-cynanchum-auriculatum-by-terahertz-spectroscopic-analysis
#1
Woo Sik Ham, Jinju Kim, Dae Joon Park, Han-Cheol Ryu, Young Pyo Jang
INTRODUCTION: Precise identification of botanical origin of plant species is crucial for the quality control of herbal medicine. In Korea, the root part of Cynanchum auriculatum has been misused for C. wilfordii in the herbal drug market due to their morphological similarities. Currently, DNA analysis using the polymerase chain reaction (PCR) method is employed to discriminate between these species. OBJECTIVE: In order to develop a new analytical tool for the rapid discrimination of C...
February 12, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29430744/rapid-discrimination-of-different-apiaceae-species-based-on-hptlc-fingerprints-and-targeted-flavonoids-determination-using-multivariate-image-analysis
#2
Eman Shawky, Rasha M Abou El Kheir
INTRODUCTION: Species of Apiaceae are used in folk medicine as spices and in officinal medicinal preparations of drugs. They are an excellent source of phenolics exhibiting antioxidant activity, which are of great benefit to human health. Discrimination among Apiaceae medicinal herbs remains an intricate challenge due to their morphological similarity. OBJECTIVE: In this study, a combined "untargeted" and "targeted" approach to investigate different Apiaceae plants species was proposed by using the merging of high-performance thin layer chromatography (HPTLC)-image analysis and pattern recognition methods which were used for fingerprinting and classification of 42 different Apiaceae samples collected from Egypt...
February 11, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29424093/taxus-ingredients-in-the-red-arils-of-taxus-baccata-l-determined-by-hplc-ms-ms
#3
Lydia Siegle, Jörg Pietsch
INTRODUCTION: Taxus baccata L. is an evergreen conifer whose plant parts are cardiotoxic. Only the red arils of the berries are described as non-toxic and taxane-free. OBJECTIVE: Extraction and HPLC-MS/MS methods were developed for the investigation of the Taxus compounds 3,5-dimethoxyphenol, 10-deacetylbaccatin III, baccatin III, cephalomannine, taxol A and taxinine M in the red arils of the yew berries. MethodologyA liquid-liquid extraction method for the red arils of the fruits from three yews were developed...
February 9, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29392793/simultaneous-separation-and-determination-of-praeruptorin-a-b-and-c-by-micellar-electrokinetic-chromatography-using-sodium-dodecyl-sulphate-and-sodium-cholate-as-mixed-micelles
#4
Meng Chen, Ruimiao Chang, Liying Xu, Yayun Huang, Hongfen Zhang, Anjia Chen
INTRODUCTION: Praeruptorin A, B and C are major bioactive constituents in Peucedani Radix. They display anti-inflammatory effect, anti-hypertension effect, antiplatelet aggregation, potential anti-cancer activities and so on. They are worthy of investigation as potentially novel and versatile drugs. OBJECTIVE: To develop a method using micellar electrokinetic chromatography (MEKC) for the application in simultaneously separation and determination of praeruptorin A, B and C from Peucedani Radix and its medicinal preparations...
February 2, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29356155/metabolic-study-of-dioecy-in-mauritia-flexuosa-nmr-based-and-chemometric-approaches
#5
Deisy Dos Santos Freitas, Glaucia Braz Alcantara
INTRODUCTION: Mauritia flexuosa is a dioecious species native to the Amazon, and the gender identification can currently be determined through the differentiation between female and male flowers in the first flowering. OBJECTIVES: To identify variations in the metabolome profiles of pooled and individual samples of leaves from female and male plants of M. flexuosa in reproductive phase, and the plant in its vegetative phase, using two extraction systems. MATERIAL AND METHODS: Extractions of leaves were separately conducted using deuterated water and methanol...
January 21, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29349835/optimization-of-aqueous-extraction-from-kalanchoe-pinnata-leaves-to-obtain-the-highest-content-of-an-anti-inflammatory-flavonoid-using-a-response-surface-model
#6
Luana Beatriz Dos Santos Nascimento, Paula Fernandes de Aguiar, Marcos Vinicius Leal-Costa, Marcela Araújo Soares Coutinho, Maria Paula Gonçalves Borsodi, Bartira Rossi-Bergmann, Eliana Schwartz Tavares, Sônia Soares Costa
INTRODUCTION: The medicinal plant Kalanchoe pinnata is a phenolic-rich species used worldwide. The reports on its pharmacological uses have increased by 70% in the last 10 years. The leaves of this plant are the main source of an unusual quercetin-diglycosyl flavonoid (QAR, quercetin arabinopyranosyl rhamnopyranoside), which can be easily extracted using water. QAR possess a strong in vivo anti-inflammatory activity. OBJECTIVE: To optimize the aqueous extraction of QAR from K...
January 19, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29336082/metabolomics-study-of-cultivated-bulbus-fritillariae-cirrhosae-at-different-growth-stages-using-uhplc-qtof-ms-coupled-with-multivariate-data-analysis
#7
Zhao Geng, YiFei Liu, Yan Gou, QinMei Zhou, ChengJun He, Li Guo, Juan Zhou, Liang Xiong
INTRODUCTION: Bulbus fritillariae cirrhosae (known as Chuān bèi mǔ in China, BFC) contain fritillaria steroidal alkaloids as the bioactive ingredients and are widely used as traditional Chinese medicine for the treatment of cough and phlegm. Due to limited wild resources, the cultivated species are becoming predominantly used in Chinese traditional medicine markets. OBJECTIVE: To assess the impact of different growth stages on the alkaloids of cultivated BFC and establish a reference for quality control and guidance for appropriate harvesting practices...
January 15, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29314317/quantification-of-incensole-in-three-boswellia-species-by-nir-spectroscopy-coupled-with-plsr-and-cross-validation-by-hplc
#8
Sulaiman Al-Shidhani, Najeeb Ur Rehman, Fazal Mabood, Muhammed Al-Broumi, Hidayat Hussain, Javid Hussain, Rene Csuk, Ahmed Al-Harrasi
INTRODUCTION: Incensole can be considered as a biomarker for Boswellia species which is a diterpene that has received remarkable pharmacological interest recently due to its potent anti-inflammatory and anti-depressant activity. OBJECTIVE: Near-infrared (NIR) spectroscopy coupled with PLSR (partial least squares regression) as a robust, rapid and alternative method was used to quantify the content of incensole in three species namely B. papyrifera, B. sacra and B...
January 4, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29280218/rapid-monitoring-of-pharmacological-volatiles-of-night-flowering-evening-primrose-according-to-flower-opening-or-closing-by-fast-gas-chromatography-surface-acoustic-wave-sensor-electronic-znose
#9
Se Yeon Oh
INTRODUCTION: Aroma is important in night-flowering species, as visually they can not be observed well. Thus, the analysis of the volatiles of evening-primrose is of great interest in biological fields and therapy. Furthermore, the analysis of volatiles demands rapid and simple procedure, because volatiles decompose. OBJECTIVE: The aim of this study is to show the rapid monitoring of the volatiles of evening-primrose according to the flowering or closing by fast gas chromatography/surface acoustic wave GC/SAW...
December 26, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29266486/development-of-a-competitive-time-resolved-fluoroimmunoassay-for-paclitaxel
#10
Qian Cui, Hiroyuki Tanaka, Yukihiro Shoyama, Hao-Ting Ye, Fang Li, En-Wei Tian, Ying-Song Wu, Zhi Chao
INTRODUCTION: Paclitaxel (Tax) is a diterpene alkaloid isolated from Taxus species and has proved clinically effective in treating a number of malignancies. Current quantitative analytical methods for Tax such as high-performance liquid chromatography (HPLC) often involve complicated sample preparation procedures with low recovery rates. OBJECTIVE: To establish a rapid and sensitive time-resolved fluoroimmunoassay (TRFIA) for measuring Tax in Taxus materials with convenient sample preparation and a high recovery rate...
December 20, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29205603/selective-profiling-of-saponins-from-gypsophila-trichotoma-wend-by-hilic-separation-and-hrms-detection
#11
Reneta Gevrenova, Ventzislav Bardarov, Krum Bardarov, Laurence Voutquenne-Nazabadioko, Max Henry
INTRODUCTION: Roots of Gypsophila trichotoma Wend. (Caryophyllaceae) are rich sources of glucuronide oleanane-type triterpenoid carboxylic acid 3,28-O-bidesmosides (GOTCABs). These saponins have been reported to possess synergistic cytotoxicity in combination with type I ribosome-inactivating protein saporin. OBJECTIVE: To develop ultra high-performance liquid chromatography - electrospray ionisation/high resolution mass spectrometry (UHPLC-ESI/HRMS) acquisition strategy for the recognition of Gypsophila GOTCAB saponins...
December 4, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29148164/protein-profiling-of-non-model-plant-cuminum-cyminum-by-gel-based-proteomic-approach
#12
Uzma Zaman, Henning Urlaub, Atiya Abbasi
INTRODUCTION: Cumin (Cuminum cyminum), a popular spice has been widely used in traditional medicine to cure various ailments. Despite the existence of scientific literature about its pharmacological properties, no successful proteome profiling has yet been attempted. OBJECTIVE: To optimise extraction of cumin proteins and analyse its profile by shotgun proteomics, using one-dimensional electrophoresis coupled with nano-ESI-LC-MS/MS. METHODOLOGY: As a first step, we have compared three extraction protocols for total proteins extraction from cumin...
November 16, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29143440/use-of-innovative-micro-extraction-techniques-to-characterise-harpagophytum-procumbens-root-and-its-commercial-food-supplements
#13
Alina Diuzheva, Simone Carradori, Vasil Andruch, Marcello Locatelli, Elisa De Luca, Matteo Tiecco, Raimondo Germani, Luigi Menghini, Alessio Nocentini, Paola Gratteri, Cristina Campestre
INTRODUCTION: For the determination of harpagoside and the wide phenolic pattern in Harpagophytum procumbens root and its commercial food supplements, dispersive liquid-liquid microextraction (DLLME), ultrasound-assisted DLLME (UA-DLLME), and sugaring-out liquid-liquid extraction (SULLE) were tested and compared. OBJECTIVES: In order to optimise the extraction efficiency, DLLME and UA-DLLME were performed in different solvents (water and aqueous solutions of glucose, β-cyclodextrin, (2-hydroxypropyl)-β-cyclodextrin, sodium chloride, natural deep eutectic solvent, and ionic liquid)...
November 16, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29110356/quantitation-of-tolyporphins-diverse-tetrapyrrole-secondary-metabolites-with-chlorophyll-like-absorption-from-a-filamentous-cyanobacterium-microbial-community
#14
Yunlong Zhang, Ran Zhang, Rebecca-Ayme Hughes, Jingqiu Dai, Joshua R Gurr, Philip G Williams, Eric S Miller, Jonathan S Lindsey
INTRODUCTION: Tolyporphins are unusual tetrapyrrole macrocycles produced by a non-axenic filamentous cyanobacterium (HT-58-2). Tolyporphins A-J, L, and M share a common dioxobacteriochlorin core, differ in peripheral substituents, and exhibit absorption spectra that overlap that of the dominant cyanobacterial pigment, chlorophyll a. Identification and accurate quantitation of the various tolyporphins in these chlorophyll-rich samples presents challenges. OBJECTIVE: To develop methods for the quantitative determination of tolyporphins produced under various growth conditions relative to that of chlorophyll a...
November 6, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28612431/phlorotannin-composition-of-laminaria-digitata
#15
Anne M Vissers, Augusta Caligiani, Stefano Sforza, Jean-Paul Vincken, Harry Gruppen
INTRODUCTION: Phlorotannins are complex mixtures of phloroglucinol oligomers connected via C-C (fucols) or C-O-C (phlorethols) linkages. Their uniformity in subunits and large molecular weight hamper their structural analysis. Despite its commercial relevance for alginate extraction, phlorotannins in Laminaria digitata have not been studied. OBJECTIVE: To obtain quantitative and structural information on phlorotannins in a methanolic extract from L. digitata. METHODOLOGY: The combined use of 13 C and 1 H NMR spectroscopy allowed characterisation of linkage types and extract purity...
November 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29044771/alkaloids-of-amaryllidaceae-as-inhibitors-of-cholinesterases-aches-and-bches-an-integrated-bioguided-study
#16
Natalie Cortes, Karina Sierra, Fernando Alzate, Edison H Osorio, Edison Osorio
INTRODUCTION: Enzymatic inhibition of acetylcholinesterase (AChE) is an essential therapeutic target for the treatment of Alzheimer's disease (AD) and AChE inhibitors are the first-line drugs for it treatment. However, butyrylcholinesterase (BChE), contributes critically to cholinergic dysfunction associated with AD. Thus, the development of novel therapeutics may involve the inhibition of both cholinesterase enzymes. OBJECTIVE: To evaluate, in an integrated bioguided study, cholinesterases alkaloidal inhibitors of Amaryllidaceae species...
October 17, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28990237/dereplication-by-hplc-dad-esi-ms-ms-and-screening-for-biological-activities-of-byrsonima-species-malpighiaceae
#17
Karina Fraige, Alessandra Cristina Dametto, Maria Luiza Zeraik, Larissa de Freitas, Amanda Correia Saraiva, Alexandra Ivo Medeiros, Ian Castro-Gamboa, Alberto José Cavalheiro, Dulce Helena S Silva, Norberto Peporine Lopes, Vanderlan S Bolzani
INTRODUCTION: Byrsonima species have been used in the treatment of gastrointestinal and gynecological inflammations, skin infections and snakebites. Based on their biological activities, it is important to study other organisms from this genus and to identify their metabolites. OBJECTIVES: To determine the metabolic fingerprinting of methanol and ethyl acetate extracts of four Byrsonima species (B. intermedia, B. coccolobifolia, B. verbascifolia and B. sericea) by HPLC-DAD-ESI-MS/MS and evaluate their in vitro antioxidant, anti-glycation, anti-inflammatory and cytotoxic activities...
October 9, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28983983/flavonoid-constituents-of-phlomis-lamiaceae-species-using-liquid-chromatography-mass-spectrometry
#18
Fatemeh Aghakhani, Navaz Kharazin, Zahra Lori Gooini
INTRODUCTION: Phlomis is one of the medicinal genera of Lamiaceae. This genus has unique medicinal properties. Consequently, appropriate methods need to be described for the identification of the chemical compounds. OBJECTIVE: A liquid chromatography tandem mass spectrometry (LC-MS/MS) technique on a triple quadrupole mass spectrometer (TQMS) was used for separation and identification of leaf flavonoid compounds for seven Phlomis species including Phlomis kurdia, Ph...
October 5, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28925005/simultaneous-qualitative-and-quantitative-analyses-of-triterpenoids-in-ilex-pubescens-by-ultra-high-performance-liquid-chromatography-coupled-with-quadrupole-time-of-flight-mass-spectrometry
#19
Di Cao, Qing Wang, Jing Jin, Maosong Qiu, Lian Zhou, Xinghong Zhou, Hui Li, Zhongxiang Zhao
INTRODUCTION: Ilex pubescens Hook et Arn mainly contains triterpenoids that possess antithrombotic, anti-inflammatory and analgesic effects. Quantitative and qualitative analyses of the triterpenoids in I. pubescens can be useful for determining the authenticity and quality of raw materials and guiding its clinical preparation. OBJECTIVES: To establish a method for rapid and comprehensive analysis of triterpenoids in I. pubescens using ultra-high-performance liquid chromatography coupled to electrospray ionisation and quadrupole time-of-flight-mass spectrometry (UPLC-ESI-QTOF-MS), which will also be applied to evaluate the contents of nine triterpenoids among root, root heartwood and root bark of I...
September 18, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28915313/a-metabolomic-approach-applied-to-a-liquid-chromatography-coupled-to-high-resolution-tandem-mass-spectrometry-method-hplc-esi-hrms-ms-towards-the-comprehensive-evaluation-of-the-chemical-composition-of-cannabis-medicinal-extracts
#20
Cinzia Citti, Umberto Maria Battisti, Daniela Braghiroli, Giuseppe Ciccarella, Martin Schmid, Maria Angela Vandelli, Giuseppe Cannazza
INTRODUCTION: Cannabis sativa L. is a powerful medicinal plant and its use has recently increased for the treatment of several pathologies. Nonetheless, side effects, like dizziness and hallucinations, and long-term effects concerning memory and cognition, can occur. Most alarming is the lack of a standardised procedure to extract medicinal cannabis. Indeed, each galenical preparation has an unknown chemical composition in terms of cannabinoids and other active principles that depends on the extraction procedure...
September 15, 2017: Phytochemical Analysis: PCA
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