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Lipińska L., Klewicka E., Sójka M., 2014. The structure, occurrence and biological activity of ellagitannins: a general review. Acta Sci.Pol. Technol. Aliment. 13 (3), 289-299

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Issue 13 (3) 2014 pp. 289-299

Lidia Lipińska1, Elżbieta Klewicka1, Michał Sójka2

1Institute of Fermentation Technology and Microbiology, Lodz University of Technology, Poland
2
Institute of Chemical Technology of Food, LoLodz University of Technology, Poland

The structure, occurrence and biological activity of ellagitannins: a general review

Abstract

The present paper deals with the structure, occurrence and biological activity of ellagitannins. Ellagitannins belong to the class of hydrolysable tannins, they are esters of hexahydroxydiphenoic acid and monosaccharide (most commonly glucose). Ellagitannins are slowly hydrolysed in the digestive tract, releasing the ellagic acid molecule. Their chemical structure determines physical and chemical properties and biological activity. Ellagitannins occur naturally in some fruits (pomegranate, strawberry, blackberry, raspberry), nuts
(walnuts, almonds), and seeds. They form a diverse group of bioactive polyphenols with anti-infl ammatory, anticancer, antioxidant and antimicrobial (antibacterial, antifungal and antiviral) activity. Furthermore, they improve the health of blood vessels. The paper discusses the metabolism and bioavailability of ellagitannins and ellagic acid. Ellagitannins are metabolized in the gastrointestinal tract by intestinal microbiota. They are stable in the stomach and undergo neither hydrolysis to free ellagic acid nor degradation. In turn, ellagic acid can be absorbed in the stomach. This paper shows the role of cancer cell lines in the studies of ellagitannins and ellagic acid metabolism. The biological activity of these compounds is broad and thus the focus is on their antimicrobial, anti-inflammatory and antitumor properties. Ellagitannins exhibit antimicrobial activity against fungi, viruses, and importantly, bacteria, including antibiotic-resistant strains such as methicillinresistant Staphylococcus aureus.

Keywords: ellagitannins, hydrolysable tannins, biological activity
pub/.pdf Full text available in english in Adobe Acrobat format:
http://www.food.actapol.net/issue3/volume/7_3_2014.pdf

http://dx.doi.org/10.17306/J.AFS.2014.3.7

For citation:

MLA Lipińska, Lidia, et al. "The structure, occurrence and biological activity of ellagitannins: a general review." Acta Sci.Pol. Technol. Aliment. 13.3 (2014): 289-299. http://dx.doi.org/10.17306/J.AFS.2014.3.7
APA Lipińska L., Klewicka E., Sójka M. (2014). The structure, occurrence and biological activity of ellagitannins: a general review. Acta Sci.Pol. Technol. Aliment. 13 (3), 289-299 http://dx.doi.org/10.17306/J.AFS.2014.3.7
ISO 690 LIPIńSKA, Lidia, KLEWICKA, Elżbieta, SóJKA, Michał. The structure, occurrence and biological activity of ellagitannins: a general review. Acta Sci.Pol. Technol. Aliment., 2014, 13.3: 289-299. http://dx.doi.org/10.17306/J.AFS.2014.3.7