PubAg

Main content area

You searched for: Journal Phytochemical analysis Remove constraint Journal: Phytochemical analysis Publication Year 2015 Remove constraint Publication Year: 2015 Source 2015 v.26 no.2 Remove constraint Source: 2015 v.26 no.2
Start Over

Search

9  Search Results

1 - 9 of 9
Number of results to display per page

Search Results

1. Chemical Differentiation and Quality Evaluation of Commercial Asian and American Ginsengs based on a UHPLC–QTOF/MS/MS Metabolomics Approach

Author:
Chen, Yujie; Zhao, Zhongzhen; Chen, Hubiao; Yi, Tao; Qin, Minjian; Liang, Zhitao
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 145-160
ISSN:
0958-0344
Subject:
Asian Americans; Panax quinquefolius; consumer preferences; discriminant analysis; forests; ginsenosides; isomers; markets; metabolomics; principal component analysis; solar drying
Abstract:
... INTRODUCTION: Asian and American ginsengs are widely used medicinal materials and are being used more and more in health products. The two materials look alike but function differently. Various forms of both types of ginseng are found in the market, causing confusion for consumers in their choice. OBJECTIVE: To evaluate the overall quality of commercial Asian and American ginsengs and investigate ...
DOI:
10.1002/pca.2546

2. Development and Validation of Liquid Chromatography Combined with Tandem Mass Spectrometry Methods for the Quantitation of Simalikalactone E in Extracts of Quassia amara L. and in Mouse Blood

Author:
Le, Hong Luyen; Jullian, Valérie; Claparols, Catherine; Vansteelandt, Marieke; Haddad, Mohamed; Cabou, Cendrine; Deharo, Eric; Fabre, Nicolas
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 111-118
ISSN:
0958-0344
Subject:
Simarouba amara; antimalarials; blood; guidelines; intravenous injection; leaves; methanol; mice; monitoring; pharmacokinetics; plant extracts; tandem mass spectrometry; ultra-performance liquid chromatography
Abstract:
... INTRODUCTION: Simalikalactone E (SkE) from Quassia amara, has been proved to be a valuable anti‐malarial and anti‐cancer compound. As SkE is very scarce, methods of quantitation are needed in order to optimise its isolation process and to determine pharmacokinetic data. OBJECTIVE: To validate methods using liquid chromatography coupled to mass spectrometry for the quantitation of SkE in plant extr ...
DOI:
10.1002/pca.2542

3. In Situ Detection and Identification of Hesperidin Crystals in Satsuma Mandarin (Citrus unshiu) Peel Cells

Author:
Inoue, Tsuyoshi; Yoshinaga, Arata; Takabe, Keiji; Yoshioka, Terutaka; Ogawa, Kazunori; Sakamoto, Masahiro; Azuma, Jun‐ichi; Honda, Yoichi
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 105-110
ISSN:
0958-0344
Subject:
Apiaceae; Citrus unshiu; crystals; hesperidin; satsumas; scanning electron microscopy; tissues; vascular bundles
Abstract:
... INTRODUCTION: Hesperidin, a flavonoid known to have important pharmacological effects, accumulates particularly in the peels of satsuma mandarin (Citrus unshiu). Although histochemical studies have suggested that hesperidin forms crystals in some tissues of the Rutaceae and Umbelliferae, there has been no rigorous in situ detection or identification of hesperidin crystals in C. unshiu. OBJECTIVE: ...
DOI:
10.1002/pca.2541

4. Isolation of Flavonoids and Triterpenoids from the Fruits of Alphitonia Neocaledonica and Evaluation of their Anti‐oxidant, Anti‐tyrosinase and Cytotoxic Activities

Author:
Muhammad, Dima; Hubert, Jane; Lalun, Nathalie; Renault, Jean‐Hugues; Bobichon, Hélène; Nour, Mohammed; Voutquenne‐Nazabadioko, Laurence
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 137-144
ISSN:
0958-0344
Subject:
Alphitonia; antioxidants; catechin; chemical structure; countercurrent chromatography; cytotoxicity; epigallocatechin; ethyl acetate; fruits; high performance liquid chromatography; ingredients; leaves; liquid-liquid extraction; mass spectrometry; nuclear magnetic resonance spectroscopy; secondary metabolites; silica gel; tannins; trees; triterpenoids; New Caledonia
Abstract:
... INTRODUCTION: Alphitonia neocaledonica (Rhamnaceae) is an endemic tree of New Caledonia. Although three flavonoids have been identified in the leaves, the secondary metabolite profile of the fruits has never been investigated. OBJECTIVE: Phytochemical investigation of A. neocaledonica fruits and evaluation of their anti‐oxidant, anti‐tyrosinase and cytotoxic activities. METHODS: A hydromethanolic ...
DOI:
10.1002/pca.2545

5. Non‐targeted Metabolomic Profile of Fagus Sylvatica L. Leaves using Liquid Chromatography with Mass Spectrometry and Gas Chromatography with Mass Spectrometry

Author:
Cadahía, Estrella; Fernández de Simón, Brígida; Aranda, Ismael; Sanz, Miriam; Sánchez‐Gómez, David; Pinto, Ernani
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 171-182
ISSN:
0958-0344
Subject:
terpenoids; fatty acids; proanthocyanidins; coumaric acids; ionization; polyols; reactive oxygen species; trees; flavanols; liquid chromatography; forests; biomarkers; carbohydrates; secondary metabolites; amino acids; metabolome; metabolomics; leaves; gas chromatography-mass spectrometry; flavonols; climate change; abiotic stress; Fagus sylvatica; leaf extracts; biochemical pathways; sterols
Abstract:
... INTRODUCTION: Fagus sylvatica L. is one of the most widely distributed broad‐leaved tree species in central and western Europe, important to the forest sector and an accurate biomarker of climate change. OBJECTIVE: To profile the beech leaf metabolome for future studies in order to investigate deeper into the characterisation of its metabolic response. METHODS: Leaf extracts were analysed using LC ...
DOI:
10.1002/pca.2549

6. Qualitative and Quantitative Analysis of Potentilla fulgens Roots by NMR, Matrix‐assisted Laser Desorption/Ionisation with Time‐of‐Flight MS, Electrospray Ionisation MS/MS and HPLC/UV

Author:
Choudhary, Alka; Radhika, Manukonda; Chatterjee, Anupam; Banerjee, Uttam Chand; Singh, Inder Pal
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 161-170
ISSN:
0958-0344
Subject:
2,5-dihydroxybenzoic acid; Potentilla siemersiana; catechin; chemical composition; dimethyl sulfoxide; epicatechin; high performance liquid chromatography; matrix-assisted laser desorption-ionization mass spectrometry; nuclear magnetic resonance spectroscopy; polyphenols; quantitative analysis; roots; traditional medicine; triterpene acids; Bhutan; India; Nepal
Abstract:
... INTRODUCTION: Potentilla fulgens is a commonly used folk medicine by natives of northeast India, Nepal and Bhutan and is rich in polyphenolic and triterpene constituents. OBJECTIVE: To identify chemomarkers in the roots of P. fulgens by an interplay of¹³C‐NMR, matrix‐assisted laser desorption/ionisation with time‐of‐flight (MALDI/TOF) MS, electrospray ionisation (ESI) MS/MS and HPLC/UV. MATERIAL A ...
DOI:
10.1002/pca.2547

7. The Evaluation of Reduction of Fe(III) in 3‐Hydroxy‐4‐Nitroso‐2,7‐Naphthalene Disulphonic Medium as an Alternative Ferric Reducing Activity Power Assay

Author:
Souza, Maryane Woth; Moya, Horacio Dorigan
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 119-126
ISSN:
0958-0344
Subject:
2,2-diphenyl-1-picrylhydrazyl; absorbance; amino acids; antioxidants; beers; blood serum; electrodes; flavonoids; hydrogen; iron; plant extracts; t-test; urine; wines
Abstract:
... INTRODUCTION: The growing interest in determination of anti‐oxidant capacity through non‐labour, effective and less costly methods encouraged the development of the spectrophotometric procedure presented in this study. OBJECTIVE: To investigate the reduction reaction of Fe(III) in 3‐hydroxy‐4‐nitroso‐2,7‐naphthalenedisulphonic anion (NRS) medium as an alternative ferric reducing activity power (FR ...
DOI:
10.1002/pca.2543

8. Ultrahigh‐performance Liquid Chromatography and Mass Spectrometry (UHPLC–LTQ/Orbitrap/MS/MS) Study of Phenolic Profile of Serbian Poplar Type Propolis

Author:
Ristivojević, Petar; Trifković, Jelena; Gašić, Uroš; Andrić, Filip; Nedić, Nebojša; Tešić, Živoslav; Milojković‐Opsenica, Dušanka
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 127-136
ISSN:
0958-0344
Subject:
anti-inflammatory activity; antioxidants; buds; chemical composition; chemometrics; honey bees; mass spectrometry; phenolic compounds; phytopharmaceuticals; propolis; provenance; ultra-performance liquid chromatography
Abstract:
... INTRODUCTION: Propolis is a resinous natural substance collected by honeybees from different plant sources. Due to the presence of various phytochemicals, this bee‐product exhibits numerous biological activities, including anti‐bacterial, anti‐viral, anti‐inflammatory, anti‐oxidant, immunostimulating and anti‐tumour effects. As the chemical composition and biological activity of propolis depend on ...
DOI:
10.1002/pca.2544

9. Ultrasound‐assisted Extraction of Gymnemic Acids from Gymnema sylvestre Leaves and its Effect on Insulin‐producing RINm‐5 F β Cell Lines

Author:
Sheoran, Sunita; Panda, Bibhu Prasad; Admane, Prasad S.; Panda, Amulya Kumar; Wajid, Saima
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 97-104
ISSN:
0958-0344
Subject:
Gymnema sylvestre; acids; alkaline hydrolysis; computer software; ethanol; insulin; leaves; medicinal plants; prediction; response surface methodology; thin layer chromatography
Abstract:
... INTRODUCTION: Gymnema sylvestre is an important anti‐diabetic medicinal plant, hence it is necessary to study the effective extraction of its active medicinal components. OBJECTIVE: To develop an efficient ultrasound‐assisted extraction method for anti‐diabetic gymnemic acids from Gymnema sylvestre leaves and measure their effect on insulin‐producing RINm‐5 F β cells. METHODS: Box–Behnken's design ...
DOI:
10.1002/pca.2540