Araştırmacılar(9)

• Akşit, Zeynep
• Alagöz, Gürkan
• Ekmekçi, Zeynep
• Fırat, Mehmet Çağlar
• Günei, Erkan
• Güneş, Erkan
• Sen, Necibe
• Tai, Muhammed
• Taş, Muhammed

• Review ArticleAçık Erişim2026/r/ebyu/19313
  Phenolic Compounds Found in Citrus Species

  Akşit, Zeynep; Yenice, Fatma

  Citrus fruits contain many components that are beneficial for health, including minerals, vitamins and dietary fibers. They are also the main source of many bioactive compounds with disease-preventing properties, such as flavonoids and limonoids. Flavonoids are a group of pigments found in plants and are responsible for the coloring of flowers and fruits. The richest source of flavonoids in food is fruits and vegetables. The inedible parts of citrus fruits, such as the juice and pulp of the fruit, are as rich in phenolic compounds as the edible parts of the fruit. Citrus peels and seeds are very rich in phenolic acids and flavonoids, and the peels contain more flavonoids than the seeds. The waste parts of citrus fruits, such as peels and seeds, are especially rich in flavonoids and phenolic compounds, and these compounds have important properties for health. Recycling the millions of tons of citrus waste released worldwide has significant potential in environmental and economic terms. Recovery of secondary metabolites from peels contributes to the prevention of chronic diseases as a natural antioxidant source, while reducing oxidation in foods and has the potential to extend shelf life. The phenolic and flavonoid content of citrus waste varies depending on the species, growing conditions and harvest time. The use of citrus waste in food, cosmetics and pharmaceutical industries not only reduces environmental pollution but also enables the development of value-added products in terms of health and nutrition.

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• ArticleAçık Erişim2026/r/ebyu/19293
  Chemical Composition and Antibacterial Activity of the Essential Oil from Cupressus arizonica Greene Cones Against Clinical and Foodborne

  Gözcü, Sefa; Akşit, Zeynep; Dursun, Ahmet

  Objective: The purpose of this study was to characterize the chemical composition of the essential oil (EO) derived from the cones of Cupressus arizonica Greene collected from Erzincan and to evaluate its antibacterial potential against a range of pathogenic microorganisms, including strains not previously investigated for this species. Methods: The essential oil was obtained from fresh cones via hydrodistillation for 4 hours. Chemical profiling was performed using Gas Chromatography-Mass Spectrometry (GC-MS). The antibacterial activity was assessed against six pathogenic bacteria using the disc diffusion method, with imipenem serving as a positive control. Results: GC-MS analysis identified 35 compounds, representing 93.83% of the total oil. The major components were α -pinene (53.02%), 3-carene (13.31%), α -myrcene (4.54%), sabinene (4.24%), and limonene (3.47%). The oil exhibited selective antibacterial activity, with inhibition zones recorded for Salmonella enterica (10.0 ± 0.3 mm), Clostridium perfringens (8.1 ± 0.5 mm), and Bacillus cereus (8.0 ± 0.6 mm). However, no inhibitory effect was observed against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. Conclusion: This study identifies a distinct α-pinene/3-carene chemotype of C. arizonica influenced by the regional flora of Erzincan. Notably, this research represents the first report of the inhibitory efficacy of C. arizonica cone essential oil against the anaerobic pathogen Clostridium perfringens. The findings suggest that this essential oil could be a promising natural candidate for targeted applications against certain foodborne and anaerobic pathogens.

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• ArticleYayıncıda açık erişim2026/r/ebyu/19285
  Algılanan reklam değeri ve satın alma niyeti: kaynak özelliklerinin etkisi

  Günes, Erkan; Taş, Muhammed; Ozaydin, Haydar; Ekmekçi, Zeynep

  Influencer pazarlaması, günümüz dijital çağında markaların tüketicilere ulaşma biçiminde önemli farklılıklara neden olmuştur. Bu farklılıkların temelinde, influencer’ların sahip olduğu özellikler ile tüketicilerin reklamlara yüklediği değer yer almaktadır. Bu araştırma, Kaynak Güvenilirlik Modeli’ne dayalı olarak influencer’ların algılanan reklam değeri ve satın alma niyeti üzerindeki etkisini araştırmaktadır. Influencer’ların çekiciliği, güvenilirliği, uzmanlığı ve benzerliğinin reklam değerini nasıl etkilediğine odaklanan araştırmada; bu değerin tüketicilerin satın alma niyetleri üzerinde nasıl bir etkisi olduğunu incelenmiştir. Anket tasarlanarak kolayda örnekleme yöntemi ile 319 sosyal medya kullanıcıdan oluşan örneklemin yer aldığı araştırma yapısal eşitlik modellemesi ile gerçekleştirilmiştir. Sonuçlar; influencer’ın çekiciliği, uzmanlığı ve benzerliğinin algılanan reklam değerini olumlu yönde etkilediğini göstermektedir. Buna karşın influencer güvenilirliğinin algılanan reklam değerine anlamlı bir etkisinin olmadığı görülmüştür. Influencer’ın yer aldığı reklam değerinin ise satın alma niyetine anlamlı ve pozitif etkisi olduğu tespit edilmiştir. Araştırma sonuçları, influencer’ların dijital pazarlama stratejilerindeki rolünü ve taşıdıkları özelliklerinin önemini vurgulamaktadır.

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• ArticleYayıncıda açık erişim2026/r/ebyu/19242
  Experience, service quality, and behavioral intentions in adventure tourism

  Şen, Necibe

  The 2025 World Downhill Skateboarding Championship was held at Ergan Mountain Ski Center (Erzincan, Türkiye) and is considered one of the most challenging courses in this field. Hosting an international event in a niche area such as downhill skateboarding creates an important arena for experience. While efforts to improve the tourist infrastructure at the Ergan Mountain Ski Resort continue, visitor experiences are also a matter of interest. This study aims to determine the service quality perceptions of visitors attending the championship, examine the effects of these perceptions on customer satisfaction and intention to recommend, and assess the impact of a memorable tourism experience on customer satisfaction and intention to recommend. Quantitative research methods were employed in the research. Within the scope of the research, data were obtained from a sample of 234 people using a questionnaire administered in face-to-face interviews with visitors attending the championship. The results indicate that visitors' perceptions of service quality at international adventure events positively affect both customer satisfaction and intention to recommend. Additionally, a memorable tourism experience has a positive impact on customer satisfaction and intention to recommend. Furthermore, it has been concluded that satisfaction is a crucial mediating variable in the transformation of a memorable tourism experience into an intention to recommend. These results present the relationships between factors that will be focused on in the international adventure tourism literature, local governance and event management practice.

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• ArticleYayıncıda açık erişim2026/r/ebyu/18276
  The Role of Place Attachment and Tourism Impacts on Residents' Support for Tourism Development

  Tas, Muhammed; Günes, Erkan; Alagöz, Gurkan; Uslu, Abdullah

  The primary aim of this study is to investigate the effect of residents' place attachment (PA) on support for tourism development (STD) within the framework of Social Exchange Theory (SET). Additionally, the study seeks to examine the moderating role of residents' perceptions of the positive (PI) and negative (NI) impacts of tourism in this interaction. The research population consists of residents living in Divri & gbreve;i, Sivas, T & uuml;rkiye. A total of 307 samples were collected using convenience sampling via a survey. Statistical analyses were conducted using SPSS and AMOS, and the PROCESS Macro was used to test the proposed model. The findings indicate that PA has a significant and positive effect on STD. PI serves as a moderator that strengthens the relationship between PA and STD, whereas NI weakens this effect. The study demonstrates that enhancing PA can strongly encourage residents' STD behaviours, particularly with the contribution of PI. Therefore, measures should be taken to mitigate the negative impacts of tourism and increase local support fortourism.

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• ArticleYalnız künye2026/r/ebyu/11449
  The effect of paternalistic leadership on employee performance in Turkish resort hotels: A moderated mediation model of psychological ownership and affective commitment

  Alagöz, Gürkan; Boz, Nurgül; Güneş, Erkan

  This study contributes to our understanding of the mediating and moderating processes through which paternalistic leadership (PL) is linked with organizational behavioral outcomes. A moderated mediation model was developed linking PL to employee performance (EP), affective commitment (AC), and psychological ownership (PO). Drawing on social exchange theory, the model posits that the effect of PL on EP is mediated by AC. Moreover, it is suggested that the relationship between AC and EP is moderated by PO. Data from 288 employees working in four and five-star hotels in Alanya support this model.

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• ArticleYalnız künye2026/r/ebyu/11384
  “I wish I were there” the effect of social comparison on social media on travel intention: a parallel mediation model

  Ekmekçi, Zeynep; Güneş, Erkan; Taş, Muhammed

  This study explores the bidirectional effect of online social comparison (OSC) on travel intentions (TI) and the mediating role of travel envy (ENVY) and self-enhancement motivation (SEM) in this relationship. Drawing on Social Comparison Theory (SCT), Self-Determination Theory (SDT), and Consumer Behavior (CB) theories, data from 422 participants were analyzed using a parallel mediation model in AMOS and the PROCESS macro in SPSS. The results indicate that OSC directly influences TI, with ENVY and SEM acting as significant mediators. These findings suggest that exposure to travel-related content on digital social media platforms can significantly shape travel planning. Additionally, the study provides valuable insights for tourism businesses and destination managers on how to leverage digital social networks as effective marketing tools.

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• ArticleYalnız künye2026/r/ebyu/11095
  Chemical Composition and Antibacterial Activity of Rosa villosa subsp. mollis R. Keller & Gams., Rosa hemisphaerica J. Herrm. and Natural Hybrid Rosa ozcelikii Korkmaz & Kandemir Essential Oil

  Gözcü, Sefa; Akşit, Zeynep; Akşit, Hüseyin; Şimşek, Samed; Korkmaz, Mustafa

  This study explores the essential oils (EOs) of Rosa hemisphaerica (RH), Rosa villosa subsp. mollis (RV) and the newly identified hybrid Rosa ozcelikii (RO). The major components of the EOs were found to be nonadecane (22.45%), viridiflorol (19.37%) and heneicosane (11.72%) in RH; α-muurolene (14.72%), σ-cadinene (17.88%) and farnesol (9.94%) in RV; and heptacosane (27.63%), heneicosane (12.42%) and α-citronellol (11.90%) in RO. Antibacterial activities were evaluated using the disc diffusion method. The EOs demonstrated moderate antibacterial effects: RV and RH exhibited inhibition zones of 8.0 ± 0.4 mm against Pseudomonas aeruginosa, while RO showed stronger activity with inhibition zones of 11.0 ± 0.5 mm against Staphylococcus aureus, 12.0 ± 0.4 mm against Clostridium perfringens and 9.0 ± 0.5 mm against Bacillus cereus. These findings highlight the chemical diversity and potential therapeutic applications of these Rosa species, emphasising their relevance in the search for natural antimicrobial agents.

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• ArticleYayıncıda açık erişim2026/r/ebyu/10909
  E-Servicescape and Online Travel Platform Outcomes: The Moderating Role of E-Familiarity

  Uslu, Abdullah; Tarinc, Abdullah; Erul, Emrullah; Eren, Ramazan; Andrade-Ruiz, Gricela; Tuncer, Mehmet Arif; Alagöz, Gürkan

  This study examines the effects of the e-servicescape on flow experience, positive affect, trust, website loyalty, and e-WOM in the context of online travel platforms, while investigating the moderating role of e-familiarity. Drawing on servicescape theory, the S-O-R framework, and the Technology Acceptance Model (TAM), a comprehensive research model is proposed. Data were collected from 256 consumers residing in Türkiye who had previously used online travel agencies, and the hypotheses were tested using partial least squares structural equation modeling (PLS-SEM). The findings reveal that the e-servicescape has significant positive effects on flow experience, positive affect, and trust. While flow experience was a significant predictor of positive affect, it did not have a significant direct effect on e-WOM. Furthermore, positive affect and trust, in turn, significantly predicted both website loyalty and e-WOM. Moreover, e-familiarity negatively moderated the relationship between e-servicescape and flow experience, suggesting that highly familiar users derive less immersive benefit from enhanced online environments. The study contributes to the digital tourism and consumer behavior literature by highlighting the role of user familiarity in shaping experiential outcomes.

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• ArticleYayıncıda açık erişim2026/r/ebyu/10842
  Chemical Composition and Biological Activities of Propolis From Eastern Anatolia: Antioxidant, Enzyme Inhibitory, and Antimicrobial Activities

  Fırat, Mehmet Çağlar; Akşit, Zeynep; Şimşek, Samed; Altın, Sevgi; Yıldız, İlyas; Akşit, Hüseyin

  Propolis is recognized for its biological activities; however, its chemical composition varies according to environmental conditions, which presents challenges for quality standardization and biological evaluation. Although propolis has been widely investigated, information regarding variation among samples collected from geographically close locations within the same region is limited. Therefore, this study investigated whether propolis samples obtained from different locations within Erzincan Province exhibit differences in chemical composition and biological activities and evaluated the relationship between environmental conditions and propolis characteristics. Eleven propolis samples collected from Erzincan, Türkiye, were analyzed for phenolic composition, antioxidant capacity, antimicrobial activity, acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and α-glucosidase inhibitory activities. Twenty-eight compounds were identified, with gallic acid, protocatechuic acid, chlorogenic acid, hydroxybenzaldehyde, caffeic acid, and vanillin detected as major constituents. AChE inhibitory activity varied between 1.28 and 6.44 µg/mL, while BChE inhibitory activity varied between 1.85 and 9.66 µg/mL. All samples exhibited antibacterial activity. Total phenolic and flavonoid contents were 141.70–255.04 mg GAE/g extract and 30.48–93.81 mg QE/g extract, respectively. The KMH sample showed the antioxidant activity. The results demonstrated variation in phytochemical composition and biological activities among propolis samples collected within the same province, indicating associations between flora, environmental conditions, propolis quality, and bioactivity.

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