<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this study, the lyophilized extracts of grape (<italic>Vitis vinifera</italic> L. cv. Dimrit) seeds [0 (control), 4, 5 and 6 mg/100 mL)] were incorporated into ayran drinks, and the total solids, fat, pH, acidity (% lactic acid) and CIELAB color values, total phenolic content, antioxidant activity values, some microbiological and sensory properties of ayran drinks were determined during storage at 4±1 °C for 10 days. The addition of grape seed extract powder (GSEP) had an insignificant effect on the pH, acidity and L* values of ayran drinks (<italic>p</italic> > 0.05), but the a* and b* color values of drinks increased as its concentration increased. The incorporation of GSEP into ayran drinks increased the total phenolic content and antioxidant activity values of samples significantly in comparison to control samples (<italic>p</italic> &lt; 0.05). Addition of GSEP to ayran drinks did not change the counts of lactobacilli and lactococci in ayran drinks during storage. Panelists in sensory evaluation liked the flavor and color properties of control and ayran drinks with 4 mg/100 mL GSEP more than other samples (<italic>p</italic> &lt; 0.05). Results indicated that GSEP might have a great potential to increase the antioxidant activity of ayran drinks, but its concentration is primarily limited by its bitter taste in drinks.</p>
</abstract>

In this study, the lyophilized extracts of grape (Vitis vinifera L. cv. Dimrit) seeds [0 (control), 4, 5 and 6 mg/100 mL)] were incorporated into ayran drinks, and the total solids, fat, pH, acidity (% lactic acid) and CIELAB color values, total phenolic content, antioxidant activity values, some microbiological and sensory properties of ayran drinks were determined during storage at 4±1 °C for 10 days. The addition of grape seed extract powder (GSEP) had an insignificant effect on the pH, acidity and L* values of ayran drinks (p > 0.05), but the a* and b* color values of drinks increased as its concentration increased. The incorporation of GSEP into ayran drinks increased the total phenolic content and antioxidant activity values of samples significantly in comparison to control samples (p < 0.05). Addition of GSEP to ayran drinks did not change the counts of lactobacilli and lactococci in ayran drinks during storage. Panelists in sensory evaluation liked the flavor and color properties of control and ayran drinks with 4 mg/100 mL GSEP more than other samples (p < 0.05). Results indicated that GSEP might have a great potential to increase the antioxidant activity of ayran drinks, but its concentration is primarily limited by its bitter taste in drinks.

Effect of grape (<italic>Vitis vinifera</italic> L. cv. Dimrit) seed extract powder on total phenolic content and antioxidant properties of ayran drink

Burdur Mehmet Akif Ersoy University, Faculty of Engineering and Architecture

Ovidius University Annals of Chemistry

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of grape ( L. cv. Dimrit) seed extract powder on total phenolic content and antioxidant properties of ayran drink

In this study, the lyophilized extracts of grape (Vitis vinifera L. cv. Dimrit) seeds [0 (control), 4, 5 and 6 mg/100 mL)] were incorporated into ayran drinks,...

Effect of grape (Vitis vinifera L. cv. Dimrit) seed extract powder on total phenolic content and antioxidant properties of ayran drink

Published Online: Oct 25, 2022

Page range: 143 - 149

Received: May 17, 2022

Accepted: Sep 11, 2022

DOI: https://doi.org/10.2478/auoc-2022-0021

Keywords
antioxidant activity, ayran, grape seed, phenolic content

© 2022 Rabia Faki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of grape (Vitis vinifera L. cv. Dimrit) seed extract powder on total phenolic content and antioxidant properties of ayran drink

Published Online: Oct 25, 2022

Page range: 143 - 149

Received: May 17, 2022

Accepted: Sep 11, 2022

DOI: https://doi.org/10.2478/auoc-2022-0021

Keywordsantioxidant activity, ayran, grape seed, phenolic content

© 2022 Rabia Faki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
antioxidant activity, ayran, grape seed, phenolic content