Effect of Natural Deep Eutectic Solvents on Antioxidant and Phenolic Profiles of Turkish Coffee

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This study aimed to explore how natural deep eutectic solvents affect antioxidant and phenolic levels in Turkish coffee.
Ultrasonic-assisted extraction of Turkish coffee samples using NADES made from betaine, glycerin, and water.
Comparison of different types of NADES (acidic, neutral, alkaline).
Total antioxidant capacity and total phenolic content were measured using ABTS and Folin-Ciocalteu methods, respectively.
Highest total antioxidant capacity (TAC) in pure NADES at 8.90 ± 0.14 mmol TE/g with p>0.05.
1/10 diluted NADES showed TAC at 8.79 ± 0.13 mmol TE/g with p>0.05.
Distilled water extraction yielded the lowest TAC and total phenolic content values.

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Investigates antioxidant and phenolic levels in Turkish coffee using natural deep eutectic solvents, suggesting enhanced extraction methods.

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Kılınç et al. (2026) studied this question.

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