Critical assessment of electrolyte systems for the capillary electrophoresis analysis of phenolic compounds in herbal extracts

2001 ◽  
Vol 13 (6) ◽  
pp. 227-235 ◽  
Author(s):  
Fabiana Novaes Fonseca ◽  
Massuo Jorge Kato ◽  
Levi Oliveira ◽  
Nestor Pinto Neto ◽  
Marina Franco Maggi Tavares
Keyword(s):  
Capillary Electrophoresis ◽  
Phenolic Compounds ◽  
Critical Assessment ◽  
Herbal Extracts

Capillary electrophoresis of phenolic compounds from Eupatorium perfoliatum L. (Asteraceae)

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
M Lechtenberg ◽  
M Maas ◽  
B Quandt ◽  
A Hensel
Keyword(s):  
Capillary Electrophoresis ◽  
Phenolic Compounds ◽  
Eupatorium Perfoliatum

Analyses of phenolic compounds by capillary electrophoresis electrospray mass spectrometry

1999 ◽  
Vol 13 (7) ◽  
pp. 562-567 ◽  
Author(s):  
Fernando Lafont ◽  
María A. Aramendia ◽  
Isabel García ◽  
Víctor Borau ◽  
César Jiménez ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Capillary Electrophoresis ◽  
Phenolic Compounds ◽  
Electrospray Mass Spectrometry

Determination of phenolic compounds in grape skin by capillary electrophoresis with simultaneous dual fluorescence and diode array absorption detection after dynamic superheated liquid leaching

2007 ◽  
Vol 1139 (2) ◽  
pp. 301-307 ◽  
Author(s):  
Feliciano Priego Capote ◽  
José Manuel Luque Rodríguez ◽  
María Dolores Luque de Castro
Keyword(s):  
Capillary Electrophoresis ◽  
Phenolic Compounds ◽  
Superheated Liquid ◽  
Diode Array ◽  
Dual Fluorescence ◽  
Grape Skin

scholarly journals The role of phenols in the influence of herbal extracts from Salvia officinalis L. and Matricaria chamomilla L. on two-spotted spider mite Tetranychus urticae Koch

2011 ◽  
Vol 48 (2) ◽  
pp. 193-205 ◽  
Author(s):  
Anna Tomczyk ◽  
Magdalena Suszko
Keyword(s):  
Phenolic Compounds ◽  
Toxic Effect ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Spider Mites ◽  
Salvia Officinalis ◽  
Herbal Extracts ◽  
Matricaria Chamomilla ◽  
Two Spotted Spider Mite

The role of phenols in the influence of herbal extracts fromSalvia officinalisL. andMatricaria chamomillaL. on two-spotted spider miteTetranychus urticaeKochExtracts prepared from 2 medicinal herbs (common sageSalvia officinalisL. and German chamomileMatricaria chamomillaL.) were used in this study for biological control of spider mites. Their effect on mortality, fecundity, and development ofTetranychus urticaeKoch on English ivy (Hedera helixL.) was studied under laboratory and greenhouse conditions. The extracts were prepared by soaking freshSalvialeaves or dryMatricariaflowers in ethanol for 24 h, followed by evaporation, and finally suspension of the pellets in water. Full extracts and extracts without phenols were tested. TheSalviaextracts had a higher acaricidal activity thanMatricariaextracts, but the toxicity of both extracts to spider mite eggs was low. The toxic effect of fullSalviaextracts on larval stages and females ofT. urticaewas evident. More than 50% of larvae and females were killed by this treatment in 4 days. Besides, total fecundity of survived females was evidently lower. Mortality and low fecundity after fullSalviaextract application decreased the spider mite population by 76%. The toxicity ofSalviaextracts after removal of phenols strongly declined, so the negative effect of the fullSalviaextract on spider mites was connected with a high concentration of phenolic compounds. The toxic effect ofMatricariaextracts in all tests was much lower and no evident role of phenolic compounds in its extracts was observed.

Development of a Sterilized Mixed Herbal Drink Product

2009 ◽  
Vol 5 (3) ◽  
Author(s):  
Bodin Techaratanakrai ◽  
Kalaya Laohasongkram ◽  
Saiwarun Chaiwanichsiri
Keyword(s):  
Antioxidant Activity ◽  
Response Surface Methodology ◽  
Phenolic Compounds ◽  
Weight Ratio ◽  
Total Phenolic ◽  
Extraction Temperature ◽  
Herbal Extracts ◽  
Total Phenolic Compounds ◽  
Extraction Condition ◽  
Total Potassium

A sterilized mixed herbal drink formula and process was developed for the mixed herbal extracts from Imperata cylindrical (L.) P. Beauv [IC], Murdannia loriformia (Hassk.) Rolla Rao et Kammathy [ML], Hedyotis corymbosa Lamk. [HC] and Orthosiphon aristatus Miq [OA]. Increasing extraction temperature and time decreased the antioxidant activity and increased the total potassium and phenolic compound contents of the herb infusions. Using response surface methodology (RSM), the appropriate extraction condition was 74.6°C for 41 minutes. The most acceptable formula contains a % weight ratio (w/w) of 14:35:27:17of IC: ML: HC: OA infusions to 7% (w/w) sucrose. Decreasing the sterilization temperature and increasing the F0-value reduced the antioxidant activity and total phenolic compounds. The appropriate sterilization temperature and F0 were 135°C and 3 minutes.

Optimization of phenolic compounds analysis by capillary electrophoresis

Talanta ◽  
2007 ◽  
Vol 72 (4) ◽  
pp. 1404-1409 ◽  
Author(s):  
D LIMA ◽  
A DUARTE ◽  
V ESTEVES
Keyword(s):  
Capillary Electrophoresis ◽  
Phenolic Compounds
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