Phenolic Composition and Antioxidant Activities of Wines and Extracts of Some Grape Varieties Grown in Turkey
Grape seed and skin extracts and wines from Cabernet Sauvignon, Kalecik Karası and Narince grape cultivars were assayed for their antioxidant properties and phenolic compositions. Total phenolic contents of the samples were determined by the Folin Ciocalteu method and compositions of the phenolics w...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Ankara University
2011-03-01
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| Series: | Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/download/article-file/21035 |
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| Summary: | Grape seed and skin extracts and wines from Cabernet Sauvignon, Kalecik Karası and Narince grape cultivars were
assayed for their antioxidant properties and phenolic compositions. Total phenolic contents of the samples were
determined by the Folin Ciocalteu method and compositions of the phenolics were separated by HPLC. Antioxidant
activities of the samples were evaluated using the 1, 1-diphenyl-2- picrylhydrazyl (DPPH.
) radical scavenging and
reducing power methods. Total phenolic contents varied from 522.49 to 546.50 mg GAE g-1 in seed extracts; from
22.73 to 43.75 mg GAE g-1 in skin extracts and from 217.06 to 1336.21 GAE mg l
-1 in wines. Radical scavenging
activities and reducing powers of the samples changed depending on the grape cultivars and the different parts of
grape and wine types. |
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| ISSN: | 1300-7580 2148-9297 |