Measuring the three forms of ellagic acid: Suitability of extraction solvents

Williams, David J., Edwards, David, Chaliha, Mridusmita and Sultanbawa, Yasmina (2016) Measuring the three forms of ellagic acid: Suitability of extraction solvents. Chemical Papers, 70 2: 144-152. doi:10.1515/chempap-2015-0193

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Author Williams, David J.
Edwards, David
Chaliha, Mridusmita
Sultanbawa, Yasmina
Title Measuring the three forms of ellagic acid: Suitability of extraction solvents
Journal name Chemical Papers   Check publisher's open access policy
ISSN 0366-6352
Publication date 2016-01-01
Sub-type Article (original research)
DOI 10.1515/chempap-2015-0193
Open Access Status Not Open Access
Volume 70
Issue 2
Start page 144
End page 152
Total pages 9
Place of publication Bratislava, Slovaki
Publisher Slovenska Akademia Vied * Chemicky Ustav
Language eng
Formatted abstract
Accurate quantification of ellagic acid and its derivatives, ellagic acid glycosides and ellagitannins, present in plant-based foods is a vital prerequisite for any study of their health-promoting properties. This goal is impeded by the lack of commercially available standards and the fact that these three forms differ widely in solubility. This disparity necessitates careful attention being paid to the choice of extraction solvents to ensure that precise and reproducible content measurements are achieved. This work sought to devise an extraction protocol that is effective for all ellagic acid forms whilst keeping the water-insoluble free ellagic acid solubilised during all analysis stages. To overcome this unavailability of commercial standards, the designated “targeted” ellagic acid derivatives identified in the selected fruit were monitored during the course of extraction that employed a number of commonly used solvents. Large variations in the extraction yield of the solvents tested for the ellagic acid and its derivatives were identified, extending even to the different fruit samples for the same form. It is regarded as unlikely that any selected extraction solvent could be universally employed to effectively extract all the ellagic acid compounds; however, the use of the solvent 50 : 50 vol. methanol-dimethylformamide satisfied most requirements
Keyword Boysenberry
Ellagic acid
Ellagic acid derivatives
Extractation solvents
Kakadu plum
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Queensland Alliance for Agriculture and Food Innovation
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