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Antilisterial activities of polyphenol-rich extracts of grapes and vinification byproducts.
J Agric Food Chem. 2009 Jan 28; 57(2):457-63.JA

Abstract

The quantitation of the main polyphenols and the assessment of the total polyphenolic content (TPC) in polyphenol-rich extracts of grape berries and vinification byproducts, obtained from Vitis vinifera cultivars of the Greek islands, are presented. The results indicated that seed extracts contain high concentrations of flavan-3-ols and their derivatives, whereas pomace and stem extracts consist of significant amounts of flavonoids, stilbenes, and phenolic acids. In particular, stemsa scarcely studied class of grape byproductwere also characterized by high trans-resveratrol and epsilon-viniferin content. The evaluation of their in vitro antilisterial activities revealed as most potent the seed and stem extracts of the red variety Mandilaria. Their minimum inhibitory concentrations (MICs) were assessed using a Malthus apparatus by two methods, a plate count technique and an automated technique that combines the conductance measurements with the common dilution method. The results revealed the usefulness of the conductance method as an alternative rapid means for the MIC estimation, whereas the respective values (0.26 and 0.34 for seeds and stems) indicated that both extracts represent an inexpensive source of potent natural antilisterial mixtures, which may be incorporated in food systems to prevent the growth of Listeria monocytogenes .

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Publisher Full Text (DOI)

Authors+Show Affiliations

Anastasiadi M
Agricultural University of Athens, Iera odos, Athens, Greece.
Chorianopoulos NG
No affiliation info available
Nychas GJ
No affiliation info available
Haroutounian SA
No affiliation info available

MeSH

FlavonoidsFood IndustryListeria monocytogenesPhenolsPlant ExtractsPlant StemsPolyphenolsSeedsVitis

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19105651

Citation

Anastasiadi, Maria, et al. "Antilisterial Activities of Polyphenol-rich Extracts of Grapes and Vinification Byproducts." Journal of Agricultural and Food Chemistry, vol. 57, no. 2, 2009, pp. 457-63.
Anastasiadi M, Chorianopoulos NG, Nychas GJ, et al. Antilisterial activities of polyphenol-rich extracts of grapes and vinification byproducts. J Agric Food Chem. 2009;57(2):457-63.
Anastasiadi, M., Chorianopoulos, N. G., Nychas, G. J., & Haroutounian, S. A. (2009). Antilisterial activities of polyphenol-rich extracts of grapes and vinification byproducts. Journal of Agricultural and Food Chemistry, 57(2), 457-63. https://doi.org/10.1021/jf8024979
Anastasiadi M, et al. Antilisterial Activities of Polyphenol-rich Extracts of Grapes and Vinification Byproducts. J Agric Food Chem. 2009 Jan 28;57(2):457-63. PubMed PMID: 19105651.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antilisterial activities of polyphenol-rich extracts of grapes and vinification byproducts. AU - Anastasiadi,Maria, AU - Chorianopoulos,Nikos G, AU - Nychas,George-John E, AU - Haroutounian,Serkos A, PY - 2008/12/25/entrez PY - 2008/12/25/pubmed PY - 2009/2/14/medline SP - 457 EP - 63 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 57 IS - 2 N2 - The quantitation of the main polyphenols and the assessment of the total polyphenolic content (TPC) in polyphenol-rich extracts of grape berries and vinification byproducts, obtained from Vitis vinifera cultivars of the Greek islands, are presented. The results indicated that seed extracts contain high concentrations of flavan-3-ols and their derivatives, whereas pomace and stem extracts consist of significant amounts of flavonoids, stilbenes, and phenolic acids. In particular, stemsa scarcely studied class of grape byproductwere also characterized by high trans-resveratrol and epsilon-viniferin content. The evaluation of their in vitro antilisterial activities revealed as most potent the seed and stem extracts of the red variety Mandilaria. Their minimum inhibitory concentrations (MICs) were assessed using a Malthus apparatus by two methods, a plate count technique and an automated technique that combines the conductance measurements with the common dilution method. The results revealed the usefulness of the conductance method as an alternative rapid means for the MIC estimation, whereas the respective values (0.26 and 0.34 for seeds and stems) indicated that both extracts represent an inexpensive source of potent natural antilisterial mixtures, which may be incorporated in food systems to prevent the growth of Listeria monocytogenes . SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/19105651/Antilisterial_activities_of_polyphenol_rich_extracts_of_grapes_and_vinification_byproducts_ L2 - https://doi.org/10.1021/jf8024979 DB - PRIME DP - Unbound Medicine ER -