SDG 2 · Açlığa Son · SDG · Munzur Üniversitesi

Yazarlar

Yayınlar

Yeniden eskiye Eskiden yeniye

MakaleAçık Erişim2026/r/munzur/6095
Food Literacy, Sustainable Eating Behaviors, and Healthy Eating Index in University Students
Yeşiltepe, Akgün; Haznedar, Nagihan Kırcalı; Macit, Arife
Objective: This study aims to examine the relationships among food literacy, sustainable and healthy eating behaviors, and Healthy Eating Index (HEI) scores among university students. Materials and Methods: This cross-sectional study was conducted with 301 volunteer university students using a structured questionnaire which included questions about general information, a sustainable and healthy eating behaviors scale (SHEB), a food literacy scale (FOODLIT), and a 24-hour dietary recall. HEI (2015) scores were calculated for all participants using 24-hour data. The statistical analysis of the data was performed using the JASP and SPSS (version 26.0) software. Results: The mean SHEB, FOODLIT, and HEI scores of the participants were 2.93±0.82, 33.13±12.55, and 41.22±11.44, respectively. A positive and significant relationship was found between FOODLIT and SHEB scores (r=0.418; p<0.05), and FOODLIT scores were found to explain 17.5% of the variance in SHEB scores (R2=0.175). In dimension analyses, environmentally safe and selection-planning skills stood out as variables associated with HEI scores, while no significant relationship was found between HEI scores and other variables. Conclusion: In conclusion, it is considered that food literacy is associated with sustainable eating behaviors, but this relationship may not directly reflect diet quality.
İncele
MakaleAçık Erişim2026/r/munzur/5963
Egg Trade in the Ottoman State: Economic Value, Production, Export and Incorporation
Başkutlu, Salih
The nutritional content and economic value of eggs have made them a critical trade product worldwide. One of the essential human food sources, eggs, became one of the most valuable products of global trade, especially in the 19th and 20th centuries. While egg production in Europe and America increased gradually, the Ottoman Empire became a significant exporter. Eggs are an essential raw material for the food sector and industrial and pharmaceutical sectors. For this reason, many countries have developed various policies to increase egg production and develop their trade. The Ottoman State had great potential for egg production thanks to its vast agricultural lands and deep-rooted tradition of animal husbandry. Regions such as the Black Sea provinces, Sivas, Erzurum, Mamuretülaziz, Hüdavendigar, Aydın and Rumeli were favorable locations for chicken breeding and egg trade. Ottoman eggs were exported mainly to Europe. Small-scale enterprises and peasants generally carried out poultry farming in the Ottoman State. However, larger-scale production areas began to be established with the increasing European demand. In this context, the study above evaluates the emergence, development, commercialization, corporatization, problems encountered, and proposal for solutions to the egg industry in the Ottoman State.
İncele
MakaleYalnız künye2026Scopus SJRQ1/r/munzur/1519
Innovative solutions for aquaculture: detecting fish diseases with hybrid deep learning model and explainable artificial intelligence
Utku, Anıl; Barut, Abdulkadir; Alofaysan, Hind
Early identification of fish diseases is critical to maintain aquaculture and minimize its financial burden. In the diagnosis of diseases, time is critical and scientists’ experience is imperative, which makes the artificial intelligence-based models necessary. It is intended by this study to integrate deep learning with explainable artificial intelligence methods to establish an artificial intelligence-powered framework for early detection of disease in fish. In this study, we developed a hybrid artificial intelligence system designed to detect diseases in freshwater fish by analyzing skin images. The primary objectives of the system are to minimize economic losses, prevent further disease spread, and ultimately increase aquaculture productivity. For this purpose, we used a dataset consisting of images from seven different disease categories, with 250 images in each class. A new hybrid model, Residual Network-50–Vision Transformer, was developed by integrating the strengths of Residual Network-50 and Vision Transformer architectures to improve classification accuracy. The proposed model was subjected to rigorous comparison with established architectures, including Visual Geometry Group 16, Mobile Convolutional Neural Network Version 2, Efficient Neural Network–Baseline Model B0, standalone Vision Transformer, and the original Residual Network-50. The results demonstrated that Residual Network-50–Vision Transformer outperformed the model, achieving an impressive 99.14% accuracy rate. Furthermore, the study employed local interpretable model-independent explanations to explain which image features most significantly influence the model’s classification decisions, thereby enhancing the interpretability and confidence in the model’s output. The application of such advanced image processing models in combination with explainable AI techniques demonstrates significant potential to support sustainable aquaculture by reducing disease outbreaks and associated financial losses.
AtıfScopus3OpenAlex2
İncele
MakaleAçık Erişim2026Scopus SJRQ1/r/munzur/1493
Effects of putrescine and MAP on quality, phenolics, and organic acids in strawberry tree fruits
Gundogdu, Muttalip; Yücel, Gül; Çolak, Ayşen Melda; Aglar, Erdal
Background: Strawberry tree (Arbutus unedo L.) fruits are rich in bioactive compounds but are highly perishable due to their high respiration rate and soft tissue structure, leading to rapid post-harvest quality losses. Therefore, developing sustainable strategies to maintain quality and extend shelf life is of great importance. Methods: In this study, the individual and combined effects of putrescine (1 mM) and modified atmosphere packaging (MAP) on the post-harvest quality and biochemical properties of strawberry tree fruits were investigated. Fruits harvested at full maturity were stored at 4 ± 1 °C and 90 ± 5% relative humidity for 15 days, and key quality parameters including weight loss, decay rate, respiration rate, soluble solids content, titratable acidity, vitamin C, organic acids, and phenolic compounds were periodically analyzed. Additionally, correlation analysis and principal component analysis (PCA) were performed to evaluate the relationships among variables. Results: Storage duration significantly increased weight loss and decay rate, while decreasing organic acids, vitamin C, and phenolic compounds (p ≤ 0.001). At the end of storage, weight loss reached 2.97% in control fruits, whereas it decreased to 1.14% in the Put + MAP treatment, representing a reduction of approximately 61.6%. Similarly, decay rate decreased from 6.55% (control) to 3.34% (Put + MAP). Respiration rate was also significantly suppressed, with the lowest values observed in the combined treatment. Furthermore, malic acid (1.38 vs. 0.80 g/100 g) and vitamin C (36.90 vs. 28.37 mg/100 g) were better preserved in Put + MAP-treated fruits compared to control at day 15. PCA results confirmed that Put + MAP treatment maintained the most balanced profile between quality attributes and biochemical stability. Conclusion: The combined application of putrescine and MAP exhibited a strong synergistic effect by simultaneously reducing respiration, limiting water loss and decay, and preserving bioactive compounds. This study demonstrates that integrating a natural bioregulator (putrescine) with an environmentally friendly packaging system (MAP) represents an innovative and practical approach for extending the shelf life and maintaining the nutritional quality of strawberry tree fruits. This strategy also has high potential for application in other highly perishable soft fruits.
İncele
MakaleAçık Erişim2026Scopus SJRQ1/r/munzur/1471
Regulation of Quality and Phenolic Metabolism in Apricot Fruit by Postharvest Salicylic Acid and Putrescine Applications
Sakaldaş, Mustafa; Şen, Fatih; Gundogdu, Muttalip; Aglar, Erdal
Apricots are a highly sensitive product that suffers rapid quality losses due to physiological and biochemical processes such as increased respiration, ethylene production, cell wall breakdown, and changes in phenolic compounds that occur in the post-harvest period, and this significantly shortens their shelf life. This study evaluated the effects of salicylic acid (SA) and putrescine (Put) applications on post-harvest quality characteristics, organic acid metabolism, and phenolic compound stability in apricot (Prunus armeniaca L.) fruits. Fruits harvested at commercial maturity were treated with four different applications: control, SA (1 mM), Put (1 mM), and a combination of SA and Put. In this study, the physiological quality parameters such as weight loss, decay rate, soluble solids content (SSC), titratable acidity (TA), pH, and respiration rate were measured, and biochemical analyses of organic acids and individual phenolic compounds were performed. With increasing storage time, weight loss, decay rate, and pH values increased in all treatment groups, whereas significant decreases occurred in organic acids, ascorbic acid, and total phenolic compounds. However, it was determined that SA and Put applications significantly slowed down these negative changes. In particular, the SA + Put combination improved storage stability by providing the lowest weight loss and decay rate thanks to the preservation of cell membrane stability and the limitation of transpiration. Phenolic compound analyses showed that phenolic degradation is the natural process during storage, but SA and Put applications significantly slowed this process. In particular, it was determined that the combination application contributed to the preservation of antioxidant phenols by supporting phenylpropanoid metabolism, and that the highest level of phenolic stability was achieved in this group. PCA results revealed that quality degradation parameters were positively correlated with respiration rate and weight loss, whereas phenolic compounds, organic acids, and ascorbic acid showed strong positive correlations with quality preservation. Correlation analysis also supported these findings, confirming that antioxidant compounds play a decisive role in storage performance. In conclusion, it was determined that the combined application of SA and Put reduces oxidative stress, regulates metabolic activity, stabilizes phenolic metabolism, and significantly delays post-harvest quality losses in apricot fruit. This approach was found to offer an effective, feasible, and sustainable post-harvest strategy for extending shelf life and preserving nutritional quality components.
İncele
MakaleAçık Erişim2026Scopus SJRQ4/r/munzur/1457
The microbiological and sensory quality of fish (Cyprinus carpio) meatballs prepared with different essential oils; [La calidad microbiológica y sensorial de las albóndigas de pescado (Cyprinus carpio) elaboradas con diferentes aceites esenciales]
KARATON-KUZGUN, Nermin; ȘAHÎN, Seher
In this study, the shelf life of fish meatballs made from common carp (Cyprinus carpio) and flavoured with lemon, ginger and mint essential oils was investigated under refrigeration conditions (4 ± 1 °C). In the study, fish mince obtained from common carp was mixed with breadcrumbs, cumin, salt, black pepper, allspice, garlic powder, sweet paprika and sunflower oil to form the experimental control group, whilst the remaining fish mince was mixed with essential oils to form four different groups. The fish meatballs were stored under refrigeration conditions, and microbiological and sensory analyses were conducted on the analysis days. As a result of these analyses, the shelf life of the fish meatballs was determined to be 20 days. Microbiologically, the limit value (6 log CFU/g) for total mesophilic aerobic bacteria was exceeded in Group control patty samples on the 10th day of storage, in Group ginger and mint patty samples on the 15th day, and in Group lemon patty samples on the 20th day. The evaluation of sensory analyses also revealed that the group of fish cake samples receiving the highest sensory approval was the group to which lemon essential oil had been added. It was concluded that offering fish-based meatballs created by adding essential oils which are natural additives in a variety of flavours would broaden the product range, further encourage consumption, and contribute to the shelf life of the resulting products.
İncele
MakaleYalnız künye2026Scopus SJRQ2/r/munzur/1423
Optimization of native plant selection for phytomining of strategic/critical raw materials using Artificial Bee Colony algorithm
Arslan Topal, E. Işıl; Topal, Murat; Çelik, Erdal; Öbek, Erdal
This study investigates the potential of native plant species (NPs) as secondary sources for strategic/critical raw materials (SCRMs) through phytomining, aiming to identify the most efficient accumulator for sustainable element recovery. To achieve high-precision results, the Artificial Bee Colony (ABC) algorithm, a robust meta-heuristic optimization technique inspired by the foraging behavior of honeybees, was utilized to minimize the error between experimental data and predicted models to optimize the accumulation of key elements including cobalt (Co), strontium (Sr), antimony (Sb), vanadium (V), phosphorus (P), lanthanum (La), magnesium (Mg), titanium (Ti), aluminum (Al), and scandium (Sc). The research focused on three NP species—Musk thistle (MT), curly dock (CD), and Juncus (JS)—collected from a geothermal hot spring area. Methodological validation was performed through comparative statistical analysis and the calculation of bioconcentration factor (BCF) and translocation factor (TF) to assess phytoremediation efficiency. The ABC optimization results revealed that MT exhibited the most significant accumulation capacity, particularly for Mg, reaching a peak concentration of 3,910 mg/kgdw in the leaves. The concentration range (lowest to highest value) was between 0.01 (for La) and 3,910 mg/kgdw for the studied plants. Principal component analysis (PCA) corroborated these findings, explaining cumulative variances of 80.4% (MT), 89.4% (CD), and 76.4% (JS). The innovation of this study lies in the application of the ABC algorithm to the field of phytomining, which offers a more dynamic and flexible alternative to traditional regression-based models. The primary advantage of this proposed method is its superior global search capability and ability to handle multi-elemental interactions with high predictive accuracy. However, a potential disadvantage remains the computational complexity and the requirement for fine-tuning control parameters to ensure consistent convergence. Overall, MT is identified as a highly promising candidate for the phytomining of SCRMs, with Mg emerging as the most effectively accumulated element under the optimized ABC model.
İncele
MakaleAçık Erişim2026Scopus SJRQ2/r/munzur/1414
Impact of probiotics and β-glucan on the detoxification and gastrointestinal bioaccessibility of aflatoxin B1 in a cereal-based fermented beverage (boza)
Macit, Arife; Sevim, Sumeyra; Sancak, Banu; Kizil, Mevlude
The aim of this study was to investigate the effects of Lactobacillus leichmannii as a probiotic bacteria, Saccharomyces boulardii as a yeast, and β-glucan as a prebiotic on the binding ability of aflatoxin B1 (AFB1) and its bioaccessibility in a cereal-based fermented beverage. For this purpose, nine study groups with their combinations were formed. The amount of unbound AFB1 was determined by high performance liquid chromatography (HPLC) after incubation and during the stomach, small intestine, and colon stages using an in vitro digestion model. After incubation, the highest percentage of AFB1 binding (27.79%) was obtained with S. boulardii. The lowest bioaccessibility was observed with L. leichmannii + S. boulardii at the stomach stage (41%), L. leichmannii + β-glucan at the small intestine stage (52%), and L. leichmannii + S. boulardii + β-glucan at the colon stage (35%). These findings suggest that probiotics and prebiotics reduce aflatoxin bioaccessibility, thereby limiting gastrointestinal absorption.
İncele
MakaleAçık Erişim2026Scopus SJRQ3/r/munzur/1356
Changes in common carp (Cyprinus carpio) sperm quality and membrane lipid composition related to cryopreservation by Tribulus terrestris; [Alterações na qualidade do esperma e na composição lipídica da membrana da carpa comum (Cyprinus carpio) relacionadas à criopreservação por Tribulus terrestris]
Ölçülü, Abdullatif; Özçiçek, Esin; Kocabaş, Filiz Kutluyer; Kocabaş, Mehmet; Kızak, Volkan; Yilmaz, Ökkeş
Docosahexaenoic acid (DHA) was the major polyunsaturated fatty acid (PUFA) in the sperm plasma membrane, and the levels of PUFAs decreased in treated groups during the cryopreservation process. The supplementation of TT (Tribulus terrestris) to Cyprinus carpio sperm at 200 µg∙L-1 positively affected the maintenance of motility parameters and FAs levels after the freeze-thaw cycle, and TT can be used as an herbal medicine instead of synthetic pharmaceuticals to improve the productive performance in aquaculture.
İncele
MakaleAçık Erişim2026Scopus SJRQ1/r/munzur/1346
The effectiveness of AgNPs synthesized using Aspergillus floccosus for controlling Phoma herbarum and Aphis Pomi de Geer
Aker, Onur; Bektaş, İdris; Yazdıç, Ferit Can
This study was conducted to synthesise silver nanoparticles (AgNPs) using Aspergillus floccosus fungal extract and to evaluate the pesticidal efficacy of the resulting nanopesticide product against two harmful organisms (pathogenic fungus and pest) affecting apples. The synthesised AgNPs were subjected to a series of characterisation tests (UV-Vis, FTIR, XRD, SEM, TEM, EDX, Zeta Potential) and, based on the results obtained, the AgNPs synthesis was successfully completed. Within the scope of this study, the first registration process has been carried out for the fungal pathogen (Phoma herbarum) that causes rot disease in apple fruits. The fungicidal efficacy of five concentrations of AgNPs (10, 25, 50, 100, and 200 mg L⁻¹) was evaluated against this pathogen under both in vitro and in vivo conditions. The results showed that AgNPs exhibited a significant inhibition on the mycelial growth of Phoma herbarum in vitro. The 200 mg L⁻¹ concentration showed the highest inhibition percentage (81.5%). Concerning in vivo test, the effect of AgNPs on disease severity index of Phoma herbarum in apple fruits was evaluated. The result of this part showed that the concentration 200 mg L⁻¹ of AgNPs exhibits highest fungicidal efficacy disease reduction rates (100%), Following by 67% for AgNPs 100 mg L⁻¹. The insecticidal effects of AgNPs on fourth-stage nymphs and adults of the pest (Aphis pomi) were evaluated in laboratory and field applications. For this purpose, AgNPs prepared at five different concentrations (30, 60, 90, 120, and 150 mg L⁻¹) were sprayed on the pests. The results showed that the insecticidal efficacy of AgNPs against Aphis pomi was directly related to both the dose and the exposure time. Specifically, the lethal concentration required to kill adults (LC50: 48.9 mg L⁻¹ for laboratory application and 68.4 mg L⁻¹ for orchard application) was higher than the dose required for nymphs (LC50: 32.3 mg L⁻¹ for laboratory and 52.1 mg L⁻¹ for orchard application). A similar trend was observed for lethal time, with adults exhibiting longer required exposure times (LT50: 51.2 h in the lab and 58.4 h in the orchard) compared to nymphs (LT50: 42.0 h in the lab and 45.1 h in the orchard). According to the results obtained, AgNPs synthesised using Aspergillus floccosus fungus have been proven to be highly effective at low doses against two major harmful organisms that cause qualitative and quantitative losses in apples. In conclusion, it has been proven that this silver-based nano pesticide product can be used as an alternative and innovative product in combating factors that cause agricultural damage to protect apple health.
AtıfScopus1WoS1
İncele
MakaleAçık Erişim2026Scopus SJRQ2/r/munzur/1333
The Relationship Between Agricultural Carbon Dioxide Emission and Agriculture Subsectors Production: Static Panel Data Approach
Peker, Ayşe Esra; Akdağ, Nuran; Veysikarani, Dilek; Kaya, Mustafa Göktuğ; Kaya, Perihan Hazel
Human activities contribute to carbon dioxide (CO₂) emissions, which have serious environmental, economic, and social effects of climate change. This has sparked efforts to find large-scale solutions to eliminate the causes of climate change. While these solutions mainly involve reducing carbon emissions through global agreements, individual nations have also taken steps to cut emissions by changing production methods, such as irrigation and fertilisation, to ensure the efficient and effective use of resources and the proper storage and transportation of food. As a result, the agricultural sector is both a source and a victim of this process. The sector’s environmental impact varies due to differing production techniques and energy needs across various sub-sectors like vegetable, grain, and fruit production. Increases in carbon dioxide emissions in this sector are connected not only to production activities but also to demographic and social factors, such as the rural population proportion. This study aims to explore the effect of vegetable, grain, and fruit production, as well as the rural population ratio, on carbon dioxide emissions. To achieve this, a static panel data analysis was conducted across 21 European countries from 1970 to 2023. According to the research findings, vegetable production increases carbon emissions from agriculture. However, it was found to have a significant, albeit borderline, impact on fruit production and to reduce carbon emissions. These results demonstrate that agriculture's contribution to carbon dioxide emissions varies by sub-sector and provide valuable information for developing sustainable agricultural policies.
İncele
MakaleYalnız künye2026Scopus SJRQ2/r/munzur/1315
Drying temperature-dependent changes in grape seed bioactives and oxidative status: integrated HPLC/GC and multivariate analysis
Karaca Sanyürek, Nesrin
Abstract: Drying temperature (40–80 °C) critically influences the stability of bioactive compounds in grape seeds and their functional responses. In this study, we evaluated the vitamin and phytosterol content of Boğazkere grape seeds using high-performance liquid chromatography (HPLC) and the fatty acid content using gas chromatography (GC). Antioxidant capacity was determined using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay and the oxidative stress marker, malondialdehyde (MDA). Temperature-dependent and compound-specific alterations were observed: while selected vitamins and phytosterols showed distinct thermal susceptibilities, fatty acid profiles exhibited measurable remodeling. Antioxidant activity revealed non-linear dose- and temperature-dependent patterns, whereas MDA consistently decreased with increasing temperature, reflecting the reduced oxidative metabolism in dehydrated tissues. Multivariate analysis, including principal component analysis (PCA) and heatmap visualization, effectively discriminated temperature treatments and revealed correlations between compositional and functional parameters. The combined use of univariate and multivariate analyses revealed that the drying temperature reshaped not only individual bioactive compounds but also the overall biochemical profile of grape seeds. These findings establish a mechanistic link between thermal processing and bioactive stability, providing a chemical basis for optimizing grape seed valorization in food systems.
İncele
MakaleAçık Erişim2026Scopus SJRQ2/r/munzur/1260
Effect of Dietary Supplementation with Omega-3 Fatty Acids on Seminal Plasma Arginase Activity and Semen Quality Parameters in Rainbow Trout (Oncorhynchus mykiss Walbaum, 1792)
Kaya, Seyma Ozer; Ozcan, Sinan; Kaya, Emre; Gur, Seyfettin; Koprucu, Kenan; Sonmez, Mustafa; Turk, Gaffari; Erisir, Mine
Background: This study was conducted to determine the effect of various fatty acid ratios added to diets of rainbow trout (Oncorhynchus mykiss, Walbaum) on some sperm parameters and parameters related to arginase activity. Methods: A total of 99 male rainbow trout were used in this study, with the fish averaging 3 years old. Semen was collected by abdominal massage. Four different experimental groups were created in the study: a control group without n-3 series fatty acids added to their diets, and groups with n-3 series fatty acids added at ratios of 1% (D1), 2% (D2), and 3% (D3), respectively. Results: While no significant difference in semen volume was observed between the D1 and D3 groups and the control group, semen volume was significantly higher in the D2 group. Compared with the control group, the time required for sperm motility to decline to both 50% and 0% was significantly prolonged in the D1 and D3 groups. Seminal plasma arginase activity did not differ significantly in the D2 and D3 groups compared with the control group but was significantly higher in the D1 group. Conclusions: Consequently, considering the doses used in the study, fatty acid supplementation was found to lead to changes in sperm quality parameters, specifically volume (only 2%) and arginase activity (only 1%). Given that the rate of decrease in sperm motility was later in groups D1 and D2, it was concluded that the added fatty acids may be beneficial.
İncele
MakaleAçık Erişim2026Scopus SJRQ1/r/munzur/1245
Effects of sulfuring, drying and storage on the formation of α-dicarbonyl compounds and 5-hydroxymethylfurfural in dried apricots
Aktağ, Işıl Gürsul; Cömert, Ezgi Doğan; Gökmen, Vural
This study investigated the impact of sulfuring, various drying methods, and storage with different packaging on the formation of α-dicarbonyl compounds and 5-hydroxymethylfurfural in dried apricots. Changes in the concentrations of α-dicarbonyl compounds, 5-hydroxymethylfurfural, sugars, and color were monitored in the samples (sulfured/non-sulfured, oven-/sun-dried, polyethylene/vacuum/modified atmosphere packaging) during storage at room temperature for 12 months. Among α-dicarbonyl compounds, 3-deoxyglucosone was the most prevalent, reaching 1356.8 ± 70.6 mg/kg dry matter in sulfured oven-dried apricots after drying. Methylglyoxal reached its peak at 723.2 ± 9.9 mg/kg dry matter in sulfured sun-dried apricots after storage. 5-Hydroxymethylfurfural remained at significantly lower levels than the dominant α-dicarbonyl compounds. Both α-dicarbonyl compounds and 5-hydroxymethylfurfural increased significantly during storage, irrespective of packaging, while sulfuring influenced the type of α-dicarbonyl compounds formed. These findings underscore the significance of processing and storage in influencing α-dicarbonyl compounds accumulation, providing valuable insights into maintaining the safety and quality of dried apricots.
AtıfScopus2WoS2OpenAlex2
İncele
MakaleAçık Erişim2026Scopus SJRQ1/r/munzur/1224
Sustainable material pathways: Utilizing biomass-derived bio-oils from agricultural wastes to restore aged asphalt binder properties
Yalcin, Beyza Furtana; Yilmaz, Mehmet; Yalcin, Erkut; Kok, Baha Vural
This study explores the valorization of agricultural biomass wastes into high-value bio-based materials by evaluating the performance of pyrolysis-derived bio-oils obtained from straw, pine cone, and olive pomace for the rejuvenation of aged asphalt binders. The effectiveness of these biomass-derived bio-oils was comparatively assessed against two commercial rejuvenators to enhance binder reusability using renewable resources. The optimum rejuvenator dosages were determined through penetration, viscosity, and dynamic shear rheometer (DSR) tests, while the associated physical and chemical modifications were investigated using FTIR, SEM-EDS, and elemental analyses. Penetration and viscosity results indicated that all rejuvenators significantly reduced binder stiffness and improved fluidity. DSR analysis indicated that increasing rejuvenator content reduced G∗/sin δ values, reflecting a decrease in binder stiffness and a softening effect of the rejuvenators, which contributes to restoring the viscoelastic balance of the aged binder. FTIR results demonstrated that biomass-derived bio-oils, particularly those from pine cone and straw, effectively reduced carbonyl (C=O) and sulfoxide (S=O) functional groups, indicating strong chemical rejuvenation. SEM-EDS analyses showed that the heterogeneous and porous morphology of bio-oils promoted improved interaction with the asphalt binder. Based on the combined results of the three experimental approaches, the optimum rejuvenator dosages were identified as 25% for commercial products, 35% for pine cone and olive pomace bio-oils, and 45% for straw bio-oil. Overall, the findings highlight that biomass-derived bio-oils produced via pyrolysis offer a sustainable and performance-effective pathway for converting agricultural residues into value-added materials, supporting circular bioenergy and biomass utilization strategies.
AtıfScopus2WoS3OpenAlex3
İncele
MakaleAçık Erişim2026Scopus SJRQ1/r/munzur/1206
Comprehensive Analysis of Phytochemical Compounds in Seeds of Indigenous Grape Varieties Cultivated in Southeastern Anatolia: Fatty Acids, Tocopherols, Phytosterols, Vitamins, and Antioxidant Properties
Odabaşioğlu, Mehmet İlhan; Çakır, Atilla; Karaca Sanyürek, Nesrin; İşlek, Fırat
Aim: In this study, the phytochemical composition of the seeds of twelve different local grape (Vitis vinifera L.) varieties traditionally cultivated in the Southeastern Anatolia Region (Diyarbakır, Türkiye) was investigated using a holistic approach. The main objective of the study was to evaluate the associations of the effects of berry skin colour, the ripening stage and utilization type on the fatty acid profile, tocopherol and phytosterol contents, vitamin K and D levels, antioxidant capacity (DPPH) and lipid peroxidation (MDA) of grape seeds. Method: The seeds of grape varieties belonging to four different colour groups, grown on their own roots, were harvested during the 2017 growing season and analysed. Fatty acid composition was determined by gas chromatography (GC), vitamin and phytosterol contents by HPLC-UV, MDA content by the thiobarbituric acid reactive substance (TBARS) method, and antioxidant capacity by the DPPH radical scavenging assay. Findings: Linoleic acid was identified as the predominant fatty acid in all varieties (53.68–67.06%), followed by oleic acid (13.80–27.32%). α-Tocopherol was identified as the predominant tocopherol form (1.597–4.703 mg kg−1), whilst β-sitosterol was the phytosterol component present at the highest level (915.67–3340.42 µg g−1). Statistically significant varietal differences were detected for most measured phytochemical parameters. Group-wise differences associated with berry skin colour and ripening stage were observed for selected traits. Overall, varietal differences appeared to be more pronounced than those associated with berry skin colour or ripening stage. It was observed that the differences in phytochemical composition between the various commercial classifications of grapes were very limited. Result: The findings reveal that the seeds of the local grape varieties studied exhibit a rich phytochemical profile and represent an important source of bioactive compounds that could be utilised, particularly in the functional food, nutraceutical and cosmetics industries. The ‘Tahannebi’ variety stood out as the one with the highest values across many parameters. Differences observed among samples of the same cultivar collected from different vineyards suggest that vineyard-specific conditions may contribute to variation in selected phytochemical traits. Future multi-year and multi-location studies are needed to confirm the stability of these phytochemical profiles and to further clarify genotype × environment interactions.
İncele
MakaleYalnız künye2026Scopus SJRQ3/r/munzur/1203
Characteristics of the growth rate, fatty acid profile, and shell content of the freshwater snail Viviparus contectus (Millet, 1813)
Kocabaş, Filiz Kutluyer; Kizak, Volkan; Özçiçek, Esin; Kocabaş, Mehmet; Yilmaz, Ökkeş
Freshwater snails are a nutritious food source, providing vital amino acids, minerals, and protein with low lipid levels. Hence, the adaptation ability, growth rate, fatty acid (FA) profile, and shell content of Viviparus contectus were determined. Biometric measurements were recorded for 6 months. Over the 6-month cultivation period, specific growth rates were recorded as 0.32% · day-1 for shell length and 0.92% · day-1 for body weight. The FA profile of the freshwater snail included a total of 32 compounds with saturated, monounsaturated, and polyunsaturated FAs represented by 13, 10, and 9 types, respectively. Monounsaturated fatty acids (MUFAs) exhibited the highest concentration, followed by saturated fatty acids (SFAs) s at 35.14% and polyunsaturated fatty acids (PUFAs) at 14.57%. Stearic acid (C18:0), erucic acid (C22:1 n-9), and arachidonic acid (C20:4 n-6) were determined as the most abundant FAs within the saturated, monounsaturated, and polyunsaturated FAs classes, respectively. The energy-dispersive X-ray spectroscopy spectra analysis revealed that the shell powder composition consisted of the elements, such as carbon, oxygen, calcium, iron, manganese, and silicium. Overall, V. contectus showed a clear increase in growth over the cultivation period, and future studies are needed to obtain the best culture conditions and intensive production of the species.
İncele
MakaleAçık Erişim2026Scopus SJRQ2/r/munzur/1176
The Positive Effect of Antioxidants in Maintaining the Post-Cryopreserved Sperm Quality of Rainbow Trout Oncorhynchus mykiss (Walbaum, 1792)
Handayani, Luvi S.; Rahayu, Sri R.; Razi, Nanda M.; Pane, Elya P.; Kocabas, Mehmet; Kocabas, Filiz Kutluyer; Hafizuddin, Hafizuddin; Fadli, Nur; Sulistiono, Sulistiono; Muchlisin, Zainal A.
Rainbow trout aquaculture is challenging due to the restricted spawning seasons. Sperm cryopreservation technology can help ensure a successful spawning season, but its effectiveness is restricted by oxidative stress during freezing and thawing, which reduces the availability of male gametes. This study aimed to evaluate the effect of several types and concentrations of antioxidants on post-cryopreservation rainbow trout sperm quality. Subsequently, a factorial completely randomized design with three replications was applied, testing four types of antioxidants Ascorbic acid, Myo-inositol, Butylated hydroxytoluene (BHT), and Alpha-tocopherol at concentrations of 0, 20, 40, and 60 mM, respectively. The evaluation parameters included motility rate, sperm lifespan, and sperm motion characteristics using the Computer Assisted Sperm Analysis system. The results showed that the type and concentration of antioxidants significantly affected sperm motility and sperm lifespan (P<0.05). The treatment method carried out using 40 mM Ascorbic acid and 20 mM BHT led to the highest sperm motility of 46.67% and sperm lifespan of 34 seconds. Although both antioxidants showed similar effectiveness, BHT at a concentration of 20 mM is more recommended due to its lower toxicity and technical as well as economic efficiency considerations.
İncele
MakaleYalnız künye2026Scopus SJRQ1/r/munzur/1170
Quality Enhancement of Rhubarb (Rheum ribes L.) Jam by Ohmic Heating
Özdede, Gizem Merve; Özakdağ, Işılay; Sevim, Esra; Karakavuk, Emrah; Sabancı, Serdal
This study aims to comparatively investigate the production of jam from Rheum ribes L., a plant known for its functional properties, using both conventional and ohmic heating methods, and to evaluate the effects of these methods on quality parameters. Ohmic heating was applied at three different voltage gradients (25, 30, and 35 V/cm) and compared with conventional heating. In both methods, jam samples were produced until they reached a total soluble solids (TSS) content of 66%, after which total phenolic content (TPC), antioxidant activity, ascorbic acid (vitamin C), hydroxymethylfurfural (HMF), and individual phenolic compounds were analyzed. According to the results, the highest TPC (488.37 mg gallic acid equivalent [GAE]/kg), antioxidant activity (595.6 mg ascorbic acid equivalent [AAE]/kg), and vitamin C content (23.6 ppm) were obtained at 35 V/cm. In contrast, the conventional method yielded significantly lower values for these parameters and a higher HMF content (29.9 ppm). Ohmic heating enabled a much shorter processing time, reducing energy consumption by approximately sixfold and contributing to better retention of nutritional components. Additionally, higher voltage gradients resulted in improved preservation of individual phenolic compounds (such as gallic acid, catechin, and rutin). The findings indicate that, compared to the conventional method, ohmic heating offers higher efficiency, better retention of bioactive compounds, and a more sustainable production approach due to its lower energy requirement.
İncele
MakaleYalnız künye2026Scopus SJRQ1/r/munzur/1137
Enhancement of chlorogenic acid application on the quality, biochemical properties, and cold storage stability of sweet cherry fruit
Gundogdu, Muttalip; Sen, Fatih; Aglar, Erdal; Kılıncer, Mustafa
This study investigated the effects of chlorogenic acid (ChlA) applications on postharvest quality characteristics and biochemical components of sweet cherry (Prunus avium L. cv. ‘0900 Ziraat’) fruit. Fruits were treated with control, 0.5, 1.0, and 1.5 mM ChlA and stored at 4 ± 0.5 °C for 21 days. Storage significantly increased weight loss and decay rate while reducing respiration rate and biochemical quality. At the end of storage, the 1.5 mM ChlA treatment reduced weight loss from 8.32% in the control to 5.20% and decreased decay rate from 9.16% to 4.50%. ChlA applications also slowed changes in soluble solids content (SSC), titratable acidity (TA), and pH, contributing to a more stable chemical composition. The highest vitamin C content at the end of storage was recorded in the 1.5 mM ChlA treatment (11.71 mg 100 g⁻¹), compared with 9.97 mg 100 g⁻¹ in the control. Similarly, chlorogenic acid significantly delayed losses of organic acids and phenolic compounds; for example, quercetin content was maintained at 6.80 mg 100 g⁻¹ in 1.5 mM ChlA-treated fruit compared with 3.78 mg 100 g⁻¹ in the control after 21 days of storage. Principal component analysis (PCA) and correlation analysis revealed strong relationships among quality attributes and biochemical compounds and demonstrated the positive role of ChlA in preserving overall fruit quality. Overall, chlorogenic acid, particularly at 1.5 mM, effectively reduced postharvest quality losses and enhanced biochemical stability during cold storage.
İncele