Comparison of the phenolic composition of fruit juices by single step gradient HPLC analysis of multiple components versus multiple chromatographic runs optimised for individual families

2000 ◽  
Vol 32 (6) ◽  
pp. 549-559 ◽  
Author(s):  
Paul D. Bremner ◽  
Claire J. Blacklock ◽  
George Paganga ◽  
William Mullen ◽  
Catherine A. Rice-Evans ◽  
...  
Keyword(s):  
Hplc Analysis ◽  
Single Step ◽  
Fruit Juices ◽  
Phenolic Composition ◽  
Multiple Components ◽  
Gradient Hplc

Optimisation of gradient HPLC analysis of phenolic compounds and flavonoids in beer using a CoulArray detector

2004 ◽  
Vol 27 (15-16) ◽  
pp. 1345-1359 ◽  
Author(s):  
Lucie Řehová ◽  
Veronika Škeříková ◽  
Pavel Jandera
Keyword(s):  
Phenolic Compounds ◽  
Hplc Analysis ◽  
Gradient Hplc

scholarly journals Drink Red: Phenolic Composition of Red Fruit Juices and Their Sensorial Acceptance

Beverages ◽  
2016 ◽  
Vol 2 (4) ◽  
pp. 29 ◽  
Author(s):  
Alice Vilela ◽  
Fernanda Cosme
Keyword(s):  
Fruit Juices ◽  
Phenolic Composition

scholarly journals Phenolic Composition, Antioxidant and Anticancer Potentials of Extracts from Rosa banksiae Ait. Flowers

Molecules ◽  
2020 ◽  
Vol 25 (13) ◽  
pp. 3068 ◽  
Author(s):  
Chen Zeng ◽  
Siyuan Luo ◽  
Shiling Feng ◽  
Tao Chen ◽  
Lijun Zhou ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Antioxidant Capacity ◽  
Pharmacological Activity ◽  
Hplc Analysis ◽  
Folk Medicine ◽  
Ornamental Plant ◽  
Natural Antioxidant ◽  
Phenolic Composition ◽  
Extraction Technology ◽  
Research Papers

Rosa banksiae Ait. (R. banksiae) is a traditional Chinese folk medicine and an ornamental plant. Most previous studies have focused on cultivation and utilization while there are few research papers on the pharmacological activity of R. banksiae. This study aimed to get a better understanding of R. banksiae by extracting polyphenols with fractionated extraction technology. The results showed that ethyl acetate phase (EAP) contained the most polyphenols, while water phase (WP) had the least. HPLC analysis indicated that rutin and luteolin-4′-O-glucoside existed in the EAP and butanol phase (BP), but quercetin was only detected in the EAP. Six phenolic compositions were not detected in WB. The antioxidant and anti-tumor abilities of the EAP and BP were excellent. The results revealed that R. banksiae possessed a great antioxidant capacity and was rich in polyphenols, thus indicating R. banksiae was suitable for being a natural antioxidant and an abundant source of polyphenols.

Variations in the phenolic composition of fruit juices with different treatments

1997 ◽  
Vol 204 (2) ◽  
pp. 151-155 ◽  
Author(s):  
T. Hernandez ◽  
Nieves Auśn ◽  
B. Bartolomé ◽  
L. Bengoechea ◽  
Isabel Estrella ◽  
...  
Keyword(s):  
Fruit Juices ◽  
Phenolic Composition

scholarly journals Study of the phenolic composition of Vernaccia di San Gimignano vine

2019 ◽  
Vol 13 ◽  
pp. 04019
Author(s):  
Franco Giannetti ◽  
Anna Maria Epifani ◽  
Marco Leprini ◽  
Giordano Martini
Keyword(s):  
Aging Process ◽  
Hplc Analysis ◽  
White Wine ◽  
Hydroxycinnamic Acids ◽  
Phenolic Composition ◽  
Research Protocol ◽  
Caftaric Acid ◽  
Predominant Form ◽  
Historical Tradition ◽  
Set Up

Vernaccia di San Gimignano is a Tuscan white wine, with a great historical tradition, produced mostly from the homonymous grapevine. One of the peculiarities of the vine, apart from producing fruity and sapid young wines, is the ability to generate structured wines, suitable for the aging process of “riserva” type. For a better understanding of the Vernaccia di San Gimignano characteristics, a research protocol has been set up. It specifically concerns the phenolic composition of the grapes observed by HPLC analysis. The hydroxycinnamic acids, the flavanols and the flavonols of the skins, the flavanols of the seeds and the hydroxycinnamic acids of the juice have been determined. The trans-caftaric acid is the predominant form in the juice (70-120 mg/L) and in the skins (5-12 mg/Kg) where there are higher values of quercetin (4-20 mg/Kg) and procyanidins (18-35 mg/Kg). Catechins (30-80 mg/Kg) prevail in the seeds.

Identifying suboptimalities with factorial model comparison

2018 ◽  
Vol 41 ◽  
Author(s):  
Wei Ji Ma
Keyword(s):  
Experimental Design ◽  
Model Comparison ◽  
Process Models ◽  
Multiple Forms ◽  
Factorial Experimental Design ◽  
Factorial Model ◽  
Multiple Components ◽  
The Many

AbstractGiven the many types of suboptimality in perception, I ask how one should test for multiple forms of suboptimality at the same time – or, more generally, how one should compare process models that can differ in any or all of the multiple components. In analogy to factorial experimental design, I advocate for factorial model comparison.

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