Molecules 2013, 18(3), 3410-3426; doi:10.3390/molecules18033410
Article

Differences in the Phenolic Composition and Antioxidant Properties between Vitis coignetiae and Vitis vinifera Seeds Extracts

1 Department of Biochemistry, University of Warmia and Mazury, Oczapowskiego Street 1A, Olsztyn 10-957, Poland 2 Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Tuwima Street 10, 10-747 Olsztyn, Poland
* Author to whom correspondence should be addressed.
Received: 30 November 2012; in revised form: 8 March 2013 / Accepted: 12 March 2013 / Published: 14 March 2013
(This article belongs to the Special Issue Antioxidants 2012)
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Abstract: Phenolic compounds were extracted from European and Japanese grapevine species (Vitis vinifera and V. coignetiae) seeds using 80% methanol or 80% acetone. The total content of phenolic compounds was determined utilizing Folin-Ciocalteu’s phenol reagent, while the content of tannins was assayed by the vanillin and BSA precipitation methods. Additionally, the DPPH free radical and ABTS cation radical scavenging activities and the reduction power of the extracts were measured. The HPLC method was applied to determine the phenolic compounds, such as phenolic acids and catechins. The seeds contained large amounts of tannins and gallic acid and observable quantities of catechins, p-coumaric, ferulic and caffeic acids. The dominant form of phenolic acids in the extracts was the ester-bound form. The content of total phenolics was higher in the European grape V. vinifera seeds, which also contained more tannins, catechins and phenolic acids, except for caffeic acid. Extracts from V. vinifera seeds showed better radical scavenger properties and stronger reducing power. The total contents of phenolic compounds and tannins in acetone extracts were higher than in methanolic extracts. Acetone extracts also exhibited stronger antiradical properties as well as stronger reducing power.
Keywords: grapevine seeds; catechins; phenolic acids; antioxidant activity

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MDPI and ACS Style

Weidner, S.; Rybarczyk, A.; Karamać, M.; Król, A.; Mostek, A.; Grębosz, J.; Amarowicz, R. Differences in the Phenolic Composition and Antioxidant Properties between Vitis coignetiae and Vitis vinifera Seeds Extracts. Molecules 2013, 18, 3410-3426.

AMA Style

Weidner S, Rybarczyk A, Karamać M, Król A, Mostek A, Grębosz J, Amarowicz R. Differences in the Phenolic Composition and Antioxidant Properties between Vitis coignetiae and Vitis vinifera Seeds Extracts. Molecules. 2013; 18(3):3410-3426.

Chicago/Turabian Style

Weidner, Stanisław; Rybarczyk, Anna; Karamać, Magdalena; Król, Angelika; Mostek, Agnieszka; Grębosz, Joanna; Amarowicz, Ryszard. 2013. "Differences in the Phenolic Composition and Antioxidant Properties between Vitis coignetiae and Vitis vinifera Seeds Extracts." Molecules 18, no. 3: 3410-3426.

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