Sürdürülebilir Kalkınma Amaçları

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• MakaleAçık Erişim2026Scopus SJRQ2/r/munzur/809
  Ultrasound assisted extraction of phenolic compounds from Tunceli walnut varieties using deep eutectic solvents

  Aydin, Çağlar Mert

  This study aimed to improve a green way to enhance extraction of bioactive compounds from walnut, and to evaluate the effect of altitude on walnut bioactive content. Total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity were evaluated as bioactive compounds of walnut. In comparison with conventional solvents (water, ethanol and methanol), three DESs (Deep eutectic solvents) were formed from choline chloride, zinc chloride, and sorbitol as HBA and ethylene glycerol as HBD. The DESs (DES-1 and DES-2) generated from choline chloride and zinc chloride exhibited better extraction efficiencies for any bioactive compound than that of conventional solvents. Especially, the DES formed from the choline chloride: ethylene glycerol demonstrated the highest extraction efficiency. However, sugar-based DES showed the worst extraction efficiency. The altitude significantly affected extracted bioactive contents from walnuts (Hozat 1000m, Ovacik 1300m and Nazimiye 1550m). Walnut’s extracted bioactive content ordinarily decreased as the altitude increased, regardless of solvent type used in extraction. The result is a light to enhancing knowledge as to DES usage and its extraction efficiency of bioactive compounds for food applications. In addition, it gives better understanding of altitude effect on the content of bioactive compounds in walnuts.

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  AtıfScopus1·WoS1

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• MakaleAçık Erişim2025/r/munzur/6185
  Effects of molar ratio, temperature and water content on acidity and viscosity of deep eutectic solvent formed from Choline Chloride-Ethylene Glycerol

  Aydın, Çağlar Mert

  Deep eutectic solvents (DESs) become preferred solvents owing to unique features and promising environmentally friendly nature they have. Evaluation their properties is essential in order to use them effectively. Even though DESs are a good alternative to classic solvents, their viscosity is high, limiting their usage in industrial applications. However, this can be overcome by adding cosolvent or varying application conditions. In this study, the effect of temperature ranging from 200C to 600C (293.15- 333.15 K), molar ratio (1:1 to 1:9) and cosolvent addition (water) on acidity and viscosity of DES were investigated. Overall, as a result of this study, operation conditions had a significant effect on acidity and viscosity of DESs. Acidity and viscosity of DESs were on decrease as molar ratio increased, and the increase in temperature negatively affected viscosity of DESs. Dynamic viscosity of DESs were temperature dependence, following Vogel-Fulcher-Tammann (VFT) equality. Cosolvent addition decreased viscosity of DESs. Addition of water higher than 25% did not have a significant effect on viscosity. In addition, water addition decreased acidity of DES up to 1:5 molar ratio, but no significant effect regardless of the amount of water addition on the acidity was determined. These results provide a new perceptive about the mechanism of DES designed for usage in food applications.

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• MakaleAçık Erişim2025Scopus SJRQ2/r/munzur/2145
  Evaluation effect of physicochemical properties of deep eutectic solvents on phenolic compounds extraction yield from Kultik seed

  Aydin, Çağlar Mert

  The aim of this study is to achieve maximum phenolic component extraction efficiency by using deep eutectic solvent, and to gain higher extraction efficiency than that obtained using conventional solvent from fruit waste, namely Kultik seed (Cucumis melo L.). Six DES (deep eutectic solvent) combination were formed using zinc chloride, ethylene glycerol, lactic acid, choline chloride, sorbitol and glucose. The evaluated DES properties were viscosity, pH, %brix and refractometric index, and their effect on phenolic extraction. Overall, the forming components significantly influence DES properties, indicating importance of choosing proper components in DES formation to receive desired extraction result. There was a correlation between extraction yield and DES properties (brix%, pH and viscosity), showing adjusting these properties are crucial in yield of desired phenolic extraction yield, r > 0.5. Alcohol based DESs had lower viscosity, higher brix% and pH in the range of 3–5. Sugar based DESs had higher viscosity, lower brix% and pH other than the range of 3–5. The highest phenolic extraction efficiency was obtained in extraction using alcohol based DESs as solvent, while the extraction using sugar and carboxylic acid based DESs underperformed. Furthermore, the extractions using some DES types (zinc chloride: ethylene glycerol (149.5 mg GAE 100 g−1), choline chloride: ethylene glycerol (161.5 mg GAE 100 g−1)) achieved better phenolic yield than that obtained using conventional solvents (water (7,6 mg GAE 100 g−1), methanol (80.2 mg GAE 100 g−1), ethanol (138.7 mg GAE 100 g−1)). These results indicate that DESs, as a green solvent, provide excellent alternative to organic solvents for green chemistry, and have a great potential to use in industrial applications involving extraction of bioactive compounds from plant sources.

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• MakaleAçık Erişim2024Scopus SJRQ2/r/munzur/4811
  Seed content and its oil composition in walnut cultivated from Tunceli, Türkiye

  Aydin, Caglar Mert; Güven, Alper

  The study is intended to shed light on walnut species cultivated in Tunceli province in 2022 and the oils produced from Juglans regia Fernor walnuts. Physicochemical properties of walnuts and fatty acid composition of the oils produced from the walnuts were identified. In addition, nutritional indexes and bioactive compounds of the oils were determined.Overall, physicochemical properties of the seeds belonging to walnuts significantly changed according to the variety. The major component in walnut seeds was found to be oil content. Saturated (SFA), monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acid ratios of the walnuts were varied according to the type of seed. Characterization of fatty acid composition in the oils from the walnuts was performed according to 6 different fatty acid levels. These fatty acids are myristic, palmitic, margaric, oleic, linoleic and linolenic acid. The oils have a refractive index being in the range of 1.4677-1.4694, the iodine value being in the range of 107-109 gms. TPC (total phenolic content) and DPPH antioxidant activity of the oils significantly changed according to the variety. TPC of the oils were found in the range of 0.33-1.53 mg GAE/g oil and DPPH antioxidant activity of the oils were in the range of 13.04-5.42 mg TE g(-1) oil. All walnut oils showed Newtonian flow behavior. The nutritional indexes including UI (Unsaturation index), IA (Atherogenicity index), IT (Thrombogenicity index) and HH (Hypocholesterolemic/hypercholesterolemic ratio) were determined to significantly change according to the variety, except for IT. It could be stated from the results that Nazimiye walnut seed oil has healthier effects on human health.

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  AtıfOpenAlex3

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• MakaleAçık Erişim2024/r/munzur/6349
  Evaluation of Novel Plant-Based Milk Produced from Melon Kernel

  Aydın, Çağlar Mert

  In this study, the possible use of melon kernel (Cucumis melo L.) as a source for production of daily milk alternative was evaluated. For this purpose, the study evaluated proximate composition, physicochemical properties and sensory properties of the milk from Kultik kernel. Overall, proximate composition consists of 88.84% moisture, 1.08 ash, 0.96 protein and 5.50% fat and 3.63% carbohydrate content. Low protein content of the milk limits its usage as an ingredient in the production of fermented dairy products. Physicochemical properties showed that Kultik kernel milk is rich in nutritional value. Rheological behaviour of the milk showed non-Newtonian with pseudoplastic character. Similar flow character to dairy milk enables the milk sample to be produced in existing equipment and processes, allowing large-scale industrial production. In addition, sensory scores of the milk sample were low, thus new formulas including the milk samples should be developed in further studies.

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  AtıfOpenAlex2·TR Dizin1

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• MakaleAçık Erişim2024Scopus SJRQ1/r/munzur/2215
  Characteristics of Hozat apricot seed oil as a new source of oilseed

  Aydin, Çağlar Mert

  There has been an increase in apricot consumption due to its high bioactive and fiber content. However, the seed, inside part of the fruit, is considered as a food waste. In this study, potential usage of apricot seeds (bitter and sweet), that were cultivated in Hozat region- Tunceli, as an alternative oil source was evaluated. No comprehensive research has been undertaken to assess the seeds as an oil source before. In assessing its suitability for consumption, proximate composition of seed and physicochemical properties of the seeds’ oil had been determined. The proximate composition included the content of protein, ash, moisture, oil and the acidity as pH, in addition; iodine value, refractive index, nutritional quality, total phenolic content, antioxidant content, fatty acid composition and rheological properties of the oil were determined. Also, the effect of variety on them was examined. Overall, oil content was found to be the major component of the seed, thus the seed is good enough to be used as an oil source. Five different fatty acids were identified in the oil, that produced from the seed. These were palmitic, heptadecanoic, oleic, linoleic and linolenic acid. The oil had a refractive index between 1.4617 and 1.4628, iodine value between 100.47 and 102.11 gms, total phenolic content between 0.83 and 1.29 mg GAE g−1 oil, antioxidant activity between 11.21 and 11.60 mg TE g−1 oil for DPPH assay and 7.92–8.20 mg TE g−1 oil for ABTS assay, and apparent viscosity of 0.04 Pa.s. Moreover, viscous flow tests showed that the oil has a Newtonian flow behavior, and the nutritional indexes, that include unsaturated, atherogenicity, thrombogenicity and hypocholesterolemic/ hypercholesterolemic ratio, indicated that the oil is good enough for consumption as an oil source. The variety was found to have a significant effect on total phenolic content, antioxidant activity and refractive index of the oil, that was produced from apricot seed.

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  AtıfScopus4·WoS4·OpenAlex4

  İncele
• MakaleAçık Erişim2024Scopus SJRQ1/r/munzur/1916
  Evaluation of antioxidant, antimicrobial, and bioactive properties and peptide sequence composition of Malatya apricot kernels

  Aydın, Çağlar Mert; Çelikbıçak, Ömür; Hayaloğlu, Ali Adnan

  BACKGROUND: This study used four different apricot (Prunus armeniaca) kernels cultivated in Malatya during two consecutive years. The varieties were Hacihaliloglu, Hasanbey, Kabaasi, and Zerdali. The physicochemical properties of the kernels were determined, and the bioactive content of the kernels was evaluated using kernel hydrolysates prepared using trypsin. RESULTS: With regard to the physicochemical properties of the kernels, the dry matter ratio and protein content were the highest in the Hacihaliloglu variety; the ash ratio was the highest in the Kabaasi variety, and the free oil ratio was the highest in the Hasanbey variety. The bioactive compound content changed according to kernel variety. Angiotensin-converting enzyme inhibitors activity was found to be the highest in the Hacihaliloglu and Hasanbey varieties, which had the lowest amygdalin content, and Zerdali had the highest amygdalin content. The antioxidant and antimicrobial effects of the kernels varied, with Hasanbey and Kabaasi generally having the highest content in both analyses. Moreover, a concentration of 20 mg mL−1 of the hydrolysate was determined to have a destructive effect for the microorganisms used in this study. The storage protein of the kernels, except Hacihaliloglu, was found to be Prunin 1, with the longest matching protein chain in the kernels being R.QQQGGQLMANGLEETFCSLRLK.E. CONCLUSION: The results suggest that the peptide sequences identified in the kernels could have antihypertensive, antioxidative, and Dipeptidyl peptidase IV (DPP-IV) inhibitory effects. Consequently, apricot kernels show potential for use in the production of functional food products. Of the kernels evaluated in this study, Hacihaliloglu and Hasanbey were deemed the most suitable varieties due to their higher bioactive content and lower amygdalin content.

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  AtıfScopus13·WoS11·OpenAlex12

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