A study on total phenolics and vitamin c contents of kalecik karasi (Vitis vinifera L.) clones. | [Pakistan Journal of Agricultural Sciences • 2014]

Author(s):

1. Nurhan Keskin: Department of Horticulture, Faculty of Agriculture, Yüzüncü Yil University, Van, Turkey

2. Hasan Çelik: Department of Horticulture, Faculty of Agriculture, Ankara University, Ankara, Turkey

3. Birhan Kunter: Department of Horticulture, Faculty of Agriculture, Ankara University, Ankara, Turkey

4. Siddik Keskin: Ankara-Turkey; Department of Biostatistics, Faculty of Medicine, Yüzüncü Yil University, Van-Turkey

Abstract:

In this study total phenolic and vitamin C contents of the fully ripe berries of 23 clones of Kalecik Karasi which is one of the leading Turkish local red-wine grape cultivar originally grown in Kizilirmak valley near Kalecik/Ankara region were examined under the clone selection project supported by TÜBITAK (Project Nr: 107 O 731). High-pressure liquid chromatography (HPLC) was used for vitamin C and spectrophotometer for total phenolics estimation. One way ANOVA was used to compare means of clone for their total phenolic and vitamin C contents. In addition to this univariate method, hierarchical cluster analysis was performed to identify similarity levels among the clones by considering total phenolics and vitamin C content together. Differences among the clones were found statistically significant for both characteristics. Total phenolic contents of the clones varied from 3.310 mg (clone 21) to 3.389 mg (clone 6) as GAE g fw. Vitamin C content ranged from 14.010 mg (clone 6) to 16.500 mg (clone 19) in 100g fw. Furthermore, similarity level for all clones was 83.1% that means variation rate is about 17% among the clones. As a summary of whole data, the first three performing clones are 6 (3.389 mg), 10 (3.374 mg) and 1 (3.365 mg) for total phenolics, and 19 (16.500 mg), 9 (16.020 mg), and 21 (16.015 mg) for vitamin C contents of the berries.

Page(s): 131-135

DOI: DOI not available

Published: Journal: Pakistan Journal of Agricultural Sciences, Volume: 51, Issue: 1, Year: 2014

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