Yazarlar
- Dertli, Enes(35)
- Mercan, Emin(22)
- Sert, Durmuş(20)
- Arslaner, Ayla(17)
- Kutlu, Naciye(17)
- Kamiloğlu, Aybike(16)
- Tekce, Emre(16)
- Bayraktar, Bülent(14)
- Can, Zehra(14)
- Ecem Bayram, Nesrin(14)
- Gul, Volkan(12)
- Yilmaz, Mustafa Tahsin(11)
- Aksakal, Vecihi(10)
- Erdoğan, Yaşar(10)
- Gül, Volkan(10)
- Gıdık, Betül(10)
- İspirli, Hümeyra(10)
- Kaya, Hacer(9)
- Bayraktar, B.(8)
- Bayram, Nesrin Ecem(8)
- Erdogan, Ummugulsum(8)
- Kaban, Güzin(8)
- Çakır, Özlem(8)
- Bayram, Sinan(7)
- Cakir, Ozlem(7)
- Kaya, Mükerrem(7)
- Sefaoglu, Firat(7)
- Tekce, E.(7)
- Ercisli, Sezai(6)
- Erten, Tayyibe(6)
- Gercek, Yusuf Can(6)
- Gerçek, Yusuf Can(6)
- Kara, Yakup(6)
- Karbancioglu-Guler, Funda(6)
- Kotan, Gökşad Cemil(6)
- Öztekin, Sebahat(6)
- Akpolat, Hacer(5)
- Aydemir, Seyma(5)
- Esmer, Yusuf(5)
- Oztekin, Sebahat(5)
Yayınlar
- MakaleYalnız künye2025Scopus SJRQ1Sensitive Microwave Sensor for Detection and Quantification of Water in Adulterated Honey
Hasar, Hafize; Hasar, Ugur Cem; Kaya, Yunus; Ozturk, Hamdullah; Korkmaz, Huseyin; Yuzgulec, Kadir; Karaaslan, Muharrem; Ebrahimi, Amir; Nayyeri, Vahid; Ramahi, Omar M.
Honey is a rich source of sugar and is one of the indispensable ingredients in infant foods. Thus, it can be subjected to adulteration due to its cost. Measurement techniques such as liquid chromatography and near-infrared spectroscopy, used for detecting any adulteration, are expensive and need to be conducted by highly trained personnel for off-line analysis. Microwave measurements, as a fast, simple, and relatively inexpensive analysis, have recently shown great potential in detecting adulteration within honey samples. Nonetheless, sensor types used in such measurements are conventional. In this study, a reflection-type sensitive microwave sensor terminated by a metal back is proposed for the first time in the literature for the detection and quantification of water percentage ( delta ) level (mass-to-mass basis) within water-adulterated honey samples. When compared with other resonance-based microwave cavity sensors, thanks to its eight strips located at the centers of two closed circular loops, it demonstrates superior frequency selectivity and sensitivity ( S=5.13 %) validated by full-wave 3-D simulations performed by the CST Microwave Studio and equivalent circuit analysis carried out by the Advanced Design System (ADS) software. For example, for ethanol, the proposed sensor gives a frequency shift of more than 1 GHz in the X band. Resonance frequency shift and variation of the reflection coefficient amplitude ( |S11| ) are measured at X band to detect honey samples with up to 8% adulteration level. Three different honey samples (flower honey, highland honey, and thyme honey) were examined to test the performance and applicability of the proposed sensor.
AtıfScopus18WoS14OpenAlex17
İncele - MakaleAçık Erişim2025Scopus SJRQ3Investigation of the relationship between apelin hormone response and some physiological parameters in enzootic bovine leukosis virus infected cattle
Sait, A.; Bayraktar, B.; Korkmaz, S.; Genç, M.; Bayraktar, S.; Kotan, G. C.; Aydemir, S.; Takma, C.; Bülbül, A. S.; Aksakal, V
Apelin is a hormone with lymphangiogenesis potential, associated with tumor growth and lymph node metastasis, and is reported to stimulate tumor vascularization. This study aimed to investigate the response of the apelin hormone in cattle with and without Enzootic Bovine Leukosis (EBL) infection, based on physiological parameters such as breed, age, and body condition score (BCS). A total of 120 Simmental and Montafon cattle of varying ages (<2, 2-8, and >8) and BCS categories (<2, 3-3.5, and >= 4) were included in the study. Serum apelin hormone levels were measured using the ELISA technique in blood samples collected from the neck vein ( Vena jugularis) of the animals. The analysis of mean serum apelin (ng/mL) values revealed that, among EBL-positive cattle, the highest value was 2.77 ng/mL in Simmental cattle aged 2-8 years with a BCS of 3-3.5, while a value of 2.69 ng/mL was observed in Montafon cattle aged >8 years with a BCS of 3-3.5. For EBL-negative cattle, the highest mean serum apelin value was 2.24 ng/mL, recorded in Simmental cattle aged 2-8 years with a BCS of 3-3.5, whereas it was 1.45 ng/mL in Montafon cattle aged >8 years with the same BCS. In conclusion, this study demonstrated for the first time the effect of apelin hormone levels in cattle with or without EBL, depending on physiological parameters such as age, breed, and BCS. It is suggested that the apelin hormone, which is involved in neoplastic lymphocyte cell infiltration in the lymphoreticular tissues of cattle, and plays a role in regulating tumor growth in EBL, a malignant tumor disease, may contribute to eradication programs. Moreover, the evaluated parameters may prove valuable for disease prevention and control strategies.
AtıfScopus1WoS1OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ1Optimization of Ethanol Extraction Conditions From Sun-Dried Apricot and Prediction of Antioxidant, Phenolic, and Flavonoid Contents and Their Effects on HCT116 Cells Using Artificial Neural Networks
Topcu, Kubra Cinar; Gueven, Sara Altun; Cakir, Ozlem; Anlar, Pinar; Durul, Melekber Sulusoglu; Ay, Mizgin; Alyafei, Mohammed; Hayat, Faisal; Ercisli, Sezai
This study aimed to optimize the ethanol extraction conditions of sun-dried apricot (Prunus armeniaca L.) and evaluate the antioxidant capacity, phenolic, and flavonoid contents of the obtained extracts. Response surface methodology (RSM) was applied to determine the optimal extraction conditions, which were identified as 60 degrees C temperature, 34% ultrasonic power, 46 min sonication time, and a 4 g/mL solid-liquid ratio. Under these conditions, the extract exhibited a total phenolic content (TPC) of 4.20 mg GAE/g, a total flavonoid content (TFC) of 7.09 mg QE/g, a DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging capacity of 1.37 mg TE/g, a ferric reducing antioxidant power (FRAP) value of 9.12 mg TE/g, and a thiobarbituric acid reactive substances (TBARS) level of 1.69 mg MDA/g. The artificial neural network (ANN) model provided highly accurate predictions for these parameters. Additionally, cell culture experiments demonstrated that the extract exerted a dose-dependent cytotoxic effect on HCT116 colon cancer cells, significantly reducing their viability. These findings highlight the potential of sun-dried apricot extracts as natural antioxidants with possible applications in the functional food and pharmaceutical industries.
AtıfScopus2WoS2OpenAlex2
İncele - MakaleAçık Erişim2024The Effect of Cadmium and Lead Exposure on the Development and Physical Structure of Quinoa (Chenopodium Quinoa Willd.)
Çakır, Özlem; Yazici, Abdullah; Gül, Zeynep
The presence of soil affected by Cd and Pb and their metals is increasing daily. Quinoa is a plant that can grow in harsh conditions due to being a halophyte plant. This study was planned to examine the effects of lead and cadmium metals, two of the most common metals today, on plant growth, physiology and some biochemical properties of quinoa. Within the scope of the study, heavy metal applications were made as 1 control (no application), 4 doses of Cd (50, 100, 150 and 200 mg/kg), and 4 doses of lead (500, 1000, 1500, 2000 mg/kg). In this study, which was carried out in Atatürk University, Plant Production and Application Center greenhouse conditions, it is observed that the metals applied negatively affected the parameters in the plant, and cadmium metal had a more toxic effect than lead metal. It is determined that the fresh weight of the plant lost 62% at the Cd 200 level and 45% at the Pb 2000 level compared to the control group.
AtıfOpenAlex1
İncele - MakaleAçık Erişim2024The Effect of Pre-Applied Titanium Dioxide Nanoparticles on Germination in Carthamus tinctorius L. Varieties
Dınler, Burcu Seçkın; Sefaoğlu, Fırat; Gül, Volkan; Çetinkaya, Hatice; Koç, Fatma Nur
In the present study, to promote sustainable nano-farming, the apparent effects of different concentrations (0, 100, 200, 300, 400, 500 ppm) of titanium dioxide nanoparticle (TiO2NPs) solutions on the germination percentage, index and duration of seeds belonging to Balcı, Dincer, Hasankendi, Koc, Olas, and Zirkon safflower varieties were investigated. Moreover, scanning electron microscopy (SEM) was employed to analyze TiO2NPs in germinated safflower varieties. Germination performance was TiO2NPs concentration and variety depended. It was determined that the seed samples displayed different responses to TiO2NPs concentrations; germination percentages were between 20.0±1.15 and 82.9±0.44%, germination durations were between 2.01±0.021 to 3.82±0.017 days, and germination indices were between 9.97±0.606 and 38.97±0.959. While the highest germination percentage (82.9±0.44%) was obtained from Dincer variety with 100 ppm TiO2NP pre-application, the lowest germination percentage (20.0±1.15% and 20.0±1.92%) was obtained from Balcı and Hasan Kendi varieties with 100 and 300 ppm TiO2NP pre-application. According to this result, although the highest germination percentage based on variety was obtained from the Dincer variety, the Balcı variety with the lowest germination percentage provided the most significant increase in the 200 ppm TiO2NPs application dose compared to the control. According to the germination percentage, it can be said that the most effective TiO2NPs application dose in Safflower varieties is 200 ppm. Further research on nanoparticles is needed to determine both the economical doses of TiO2NP pre-application and its uptake by the plant.
- MakaleAçık Erişim2024Atık bitkisel yağlarla muamele edilmiş İroko (Milicia excelsa Welw. C.C. Berg) odununda beyazlık indeksi, renk ve parlaklık değerlerinin belirlenmesi
Ayata, Ümit; Camlibel, Osman
Günümüzde ahşap malzemenin sahip olduğu rengi değiştirmenin birçok farklı metotları (ısıl işlem, emprenye, ağartma, vb.) bulunmaktadır. Bu işlemler esnasında çevre dostu ürünlerin kullanılması gerek insan sağlığı gerekse ahşap endüstrileri için önem teşkil etmektedir. Bu çalışmada, atık bitkisel yağların (zeytinyağı, mısır yağı ve ceviz yağı) İroko (Milicia excelsa Welw. C.C. Berg) odunun yüzeylerine bir fırça ile uygulanması sonrasında meydana gelen bazı yüzey özellikleri araştırılmıştır. Uygulama öncesi ve sonrasında ahşap yüzeylerde beyazlık indeksi (WI*) [liflere dik (⊥) ve paralel (║)] değerleri, renk parametreleri (∆L*, ∆a*, ∆b*, ∆C*, ∆H*, ∆E*, a*, C*, L*, b* ve ho) ve parlaklık değerleri [20o, 60o ve 85o’lerde liflere dik (⊥) ve paralel (║)] belirlenmiştir. Bütün atık bitkisel yağ türleri uygulanmış deney örneklerinde a* ve C* değerleri artış gösterirken, L*, b* ve ho değerlerinde azalışlar elde edilmiştir. En düşük ∆E* değeri atık mısır yağında (23.70) bulunurken, en yüksek değer atık zeytinyağında (24.48) tespit edilmiştir. Her iki yöne ait olan WI* değerlerinde atık yağların uygulandığı örneklere ait sonuçlar kontrol örneklerininkine nazaran daha düşük olarak tespit edilmiştir. Uygulanan atık yağlar ile WI* değerlerinde azalış belirlenmiştir. Bütün atık yağ türlerinde liflere dik ve paralel yönlerde parlaklık değerleri 20o ve 60o’lerde azalırken, 85o’de artmıştır. Kullanılan tüm atık yağların iroko odunu yüzeylerinde yüzey özelliklerini değiştirici etkide bulunduğu görülmüştür.
- MakaleAçık Erişim2024Trachystemon orientalis (L.) G. Don bitkisinin antioksidan aktivite, toplam fenolik madde içeriği ve a-glukozidaz enzimi inhibisyon potansiyelinin araştırılması
Cebeci, Fatma; Erten, Tayyibe
Amaç: Bu çalışmanın amacı Trachystemon orientalis (L.) G.Don bitkisini yaprak, sap ve rizom olarak 3 kısma ayırıp, bu kısımların protein içeriğini, antioksidan aktivitesini, toplam fenolik madde içeriğini ve α- glukozidaz inhibisyon oranını belirlemektir. Materyal ve Yöntem: Bitkinin proksimet analizleri Association of Official Analytical Chemists’in (AOAC) metotlarına göre yapılmıştır. Antioksidan aktivite, toplam fenolik madde analizleri ve α- glukosidaz inhibisyonunun belirlenmesinde ise spektrofotometrik yöntemler kullanılmıştır. Örnekler arasındaki farklılıkların değerlendirilmesinde tek yönlü ANOVA ve Tukey testi uygulanmıştır (p<0,05). Tartışma ve Sonuç: Bitkinin yaprak, sap ve rizom kısımlarının içerdiği kül ve kuru madde oranları istatistiksel olarak anlamlı farklılık içermektedir. Buna karşın protein oranı en çok yaprak kısmından elde edilirken (%15,67), sap ve rizom kısımlarında önemli bir fark görülmemiştir. DPPH ve ABTS yöntemleriyle antioksidan aktivitesi ölçüldüğünde; en yüksek antioksidan aktivite rizom kısmında, ardından sırasıyla yaprak ve sap kısımlarında görülmüştür (p<0,05). Yaprak, sap, rizom kısımlarının toplam fenolik madde içeriği, antioksidan aktivite sonuçlarıyla paralellik göstermektedir. Toplam fenolik madde içeriği rizom>yaprak>sap şeklinde, sırasıyla 2,78 ± 0,04; 1,11 ± 0,06 ve 0,81 ± 0,07 mg GAE/ g taze ağırlık olarak bulunmuştur. Yaprak (%52,06 ± 2,87) ve rizom (%54,34 ± 1,10) ekstraktlarının α-glukozidaz inhibisyon değerleri standart α-glukozidaz inhibitörü olan akarboza (%43,05 ±1,27) göre daha yüksek bulunmuştur (p<0,05). Sonuç olarak bu çalışma, Trachystemon orientalis (L.) G. Don bitkisinin protein içeriği açısından önemli olduğunu; antioksidan ve antidiyabetik özellikleriyle insan sağlığını destekleyebileceğini ortaya koymuştur.
- MakaleAçık Erişim2024Zincir marketlerin türkiye perakende sektöründeki rolü
Kara, Adnan
Zincir marketler perakendecilik hizmetler pazarında önemli bir yer tutmaktadır. Zincir marketler, perakendecilik hizmetlerini daha verimli hale getirmekte ve tüketicilere kolaylıklar sağlamaktadır. Dünya genelinde perakende büyük zincir marketler perakende pazarının çoğunu elinde tutmaktadır. Ayrıca zincir marketlerin kendilerine ait olan perakendeci markaları da rekabette üretici markalarının önüne geçmektedir. Zincir marketler kazandıkları rekabetçi üstünlükleri kaybetmemek için marka yatırımlarına devam etmektedir. Bu çalışmada Türkiye perakendecilik sektörünün pazar yapısı analizi, zincir marketlerin markalaşmaları ve performansları araştırılmaktadır. Araştırmada kullanılan veriler ikincil kaynaklardan elde edilerek analiz edilmiş ve yorumlanmıştır. Özel olarak Türkiye’de en yüksek pazar payına sahip BİM’e ait marka ve performans göstergeleri arasındaki ilişki korelasyon analizi ile test edilmiştir. Araştırma bulgularında Türkiye perakende sektöründe ilk üç zincir marketlerin pazarın neredeyse yarısına sahip olduğu ve pazar yoğunlaşmasının yüksek olduğu belirlenmiştir. Perakendeci markalarının sayısının giderek arttığı ve tüketicilerde mağaza sadakati oluşturarak zincir marketlerin pazar payı artışına katkıda bulunduğu belirlenmiştir. Son olarak BİM’in performans göstergelerinden marka değeri ile kar oranları arasında negatif yönlü ilişki, satışlar ile marka sayıları arasında pozitif yönlü anlamlı ilişki tespit edilmiştir.
AtıfOpenAlex6TR Dizin3İncele - MakaleAçık Erişim2024Derin ötektik çözücülerin portakal kabuğundan biyoaktif bileşiklerin ekstraksiyonuna etkisi
Kantar, Naciye Kutlu; Hacıbektaşoğlu, Hanife
Atık değerlendirme kapsamında en önemli meyve atıklarından biri olan portakal kabuğuna alternatif kullanım alanı oluşturmak adına bu çalışma planlanmıştır. Çalışmada, öncelikle organik çözücülerin (etanol, metanol ve su) yerine alternatif olabilecek farklı tipte derin ötektik çözücüler kullanılarak ultrasonik destekli ekstraksiyon yöntemi eşliğinde portakal kabuğu ekstraktları hazırlanmış olup bu ekstraktların biyoaktif bileşik içerikleri (toplam fenolik bileşik, toplam flavonoit bileşik, antioksidan aktivite ve bireysel fenolik bileşik profili) değerlendirilmiştir. Sonuç olarak, derin ötektik çözücülerin en yüksek toplam flavonoit madde ve antioksidan aktivite değerlerinin sağlanmasında istatistiksel olarak etkili olduğu belirlenmiştir. Ayrıca bireysel fenolik bileşik profili incelendiğinde en baskın bileşenin hesperidin olduğu görülmüş ve en yüksek değere kolin klorür:gliserol (1:2) kombinasyonu ile ulaşılmıştır. Sonuçta derin ötektik çözücülerin portakal kabuğundan fitokimyasal bileşiklerin ekstraksiyonunda organik çözücülere alternatif olabildikleri saptanmıştır.
- MakaleAçık Erişim2024Social and Economic Problems of Agricultural Enterprises: The Case of Bayburt
Esmer, Yusuf; Özel, Emrah
Agricultural enterprises are enterprises that make significant contributions to the economic, social and cultural development of countries by engaging in agricultural production, agricultural product processing and agricultural marketing activities. It can be said that agricultural enterprises in Türkiye face many problems because they are mostly SMEs. The aim of this study is to examine the social and economic problems of agricultural enterprises based on the Bayburt example. In the study, it was deemed appropriate to use face-to-face interview technique within the scope of qualitative research method. In the interview, a questionnaire containing 32 questions about the social and economic problems of agricultural enterprises was used in addition to questions about participants and agricultural enterprises such as position, sector experience, enterprise size, enterprise title. Data were collected from 27 agricultural enterprises engaged in production, processing and marketing activities in Bayburt province. Content analysis technique was used to analyze the data. The responses of the participants were processed in depth within the scope of the themes determined in accordance with the content analysis technique, and the social and economic problems of agricultural enterprises were identified and solution suggestions were developed. As a result of the analysis, it was determined that agricultural enterprises have various problems related to management, production, marketing, finance and risk management, accounting, human resources, R&D and infrastructure, and suggestions were made within the scope of each theme. In conclusion, it is thought that this study will shed light on all agricultural enterprises operating in the sector and relevant stakeholders by addressing the existing problems, identifying the obstacles and developing recommendations.
- MakaleAçık Erişim2024Scopus SJRQ4Strategic analysis of Bayburt in terms of organic agriculture
Esmer, Yusuf; Yildiz, Pinar
Purpose: The aim of this study is to make a strategic analysis of Bayburt province, which has an important potential in terms of organic agriculture, in terms of organic agriculture and to develop strategies for the sector. Design/Methodology/Approach: In the study, SWOT analysis was conducted with 25 people (engineers, civil servants, agricultural technicians, farmers and academicians) using the interview technique within the scope of qualitative research method. All SWOT analysis data obtained were subjected to content analysis and summarized into a single SWOT matrix, and strategies were developed based on the situation matrix and expert opinion. Findings: In the study, a total of 12 strategies were developed, three for each SWOT analysis component. Some of these strategies are; conducting studies to recognize the value of organic agriculture by protecting the natural structure of the region, encouraging organic agriculture entrepreneurship and management in the region and ensuring the participation of young entrepreneurs in the sector, ensuring the establishment of cooperatives and unions operating in organic agriculture in the region, and developing policies to unify fragmented lands. Originality/Value: This study is valuable in that the strategies developed in this research can guide provincial agriculture and forestry directorates, agricultural enterprises, managers and researchers in the strategic management of organic agriculture.
- MakaleAçık Erişim2024Berberis Fruit Extracts in Marinated Meat: Quality Effects
Çakır, Özlem; Topcu, Kübra Cinar; Fettahoğlu, Kübra
In this study, the effects of the fruit extracts Berberis vulgaris L. and Berberis crataegina DC. on the quality of the meat were evaluated. According to the results of antioxidant activity analyses, the antioxidant activities of B. vulgaris and B. crataegina fruit extracts were determined as 81.29 ± 14.14% and 78.97 ± 0.39%, respectively. The phenolic content of B. vulgaris fruit extract was found to be 1707.88 ± 60.10 mg GAE/g, while the phenolic content of B. crataegina fruit extract was 83.64 ± 1.61 mg GAE/g (p<0.01). These differences indicate significant diversity in phenolic compounds among plant species. pH values of meat samples marinated with B. vulgaris extract showed a gradual decrease over time. For instance, at the 3rd hour, the pH value of meat samples marinated with B. vulgaris was determined as 4.42 ± 0.05 (p<0.01). At the end of storage, TBARS values were determined as (1.54±0.13; 0.41±0.11; and 0.19±0.02 mg MDA/kg) in the control, B. crataegina and B. vulgaris groups, respectively (p<0.01). A significant reduction in Total Aerobic Mesophilic Bacteria (TAMB) count was observed in meat samples marinated with B. vulgaris extract. For example, at the end of the 12th day, the TAMB count was determined as 8.95 ± 0.07 log CFU/g in the control group, while it was 5.74 ± 0.06 log CFU/g in meat samples marinated with B. vulgaris extract (p<0.01). These data demonstrate the potential of Berberis vulgaris and Berberis crataegina fruit extracts to improve meat quality. With their antioxidant activities, phenolic contents, pH effects, and microbial inhibition, these extracts can be considered important natural components to use in the meat industry.
AtıfOpenAlex1İncele - MakaleAçık Erişim2024A Study on Occupational Health and Safety in the Agricultural Sector in Türkiye: Analysis of Work Accidents, Occupational Diseases, and Lost Workdays
Ozdemir, Mustafa
The agricultural sector holds strategic economic importance due to its roles in food production, employment, and providing raw materials to industry. Türkiye is a significant agricultural country with its biological diversity, favourable climate conditions, and agriculture-based sector. According to the labor force statistics of the Turkish Statistical Institute (TÜİK), as of 2023, approximately 4.7 million people are employed in the agricultural sector in Türkiye, with the majority being seasonal workers. The farm sector includes field farming, livestock, fisheries, and forestry. Occupational Health and Safety (OHS) is vital for the sustainability of the agricultural sector. The Occupational Health and Safety Law No. 6331, which came into force in 2012, has mandated OHS provisions for all enterprises and employees in the agricultural sector. This study examines the statistics on work accidents, occupational diseases, and lost workdays in Türkiye's plant and animal production sector between 2018 and 2022 and evaluates the current state of OHS practices. Based on data from the Social Security Institution (SGK), the analysis reveals that 13,993 work accidents and 96 fatal work accidents occurred in the plant and animal production sector between 2018 and 2022, with the highest frequency of work accidents recorded in 2022. Additionally, 13 cases of occupational diseases were reported during the same period. An examination of temporary incapacity durations shows 133,008 days of incapacity reports, with the highest number occurring in 2021, influenced by the COVID-19 pandemic. The study's findings indicate that OHS practices in the agricultural sector are inadequate and need improvement. In light of these findings, various policy recommendations have been developed, such as the widespread implementation of OHS training, increased health screenings, and stricter OHS inspections.
AtıfOpenAlex1TR Dizin1İncele - MakaleYayıncıda açık erişim2024Assessment The Effects of Psyllium And Hydrocolloids in Gluten-Free Noodle
Aktas, Kubra; Erten, Tayyibe
This study was performed to examine the effects of individual and combined usage of psyllium husk powder (PHP) with guar gum (GG) or locust bean gum (LBG) on the production of gluten-free Turkish-type noodles. For this purpose, six different formulations were created with the total amount of variables being 3%, and samples' physical, chemical, cooking, textural and sensorial properties were performed. The results revealed no significant decrease or increase in moisture, ash, protein and fat contents. On the other hand, although individual usage of psyllium caused a slight decrease in carbohydrate content, this did not reflect energy values. The lowest L* and hue and the highest a* values were observed in the samples where only psyllium was used, and there was no significant difference in b* and saturation index values. Regarding cooking quality and textural analysis, the results from these two analyses supported each other, and there is a significant difference between the samples. An additional disliking that can be considered significant was not determined by using psyllium with or without other gums in noodle formulation. As a result, the dual combined psyllium with other gums in gluten-free noodle production could be appropriate without adversely affecting the quality of the product.
AtıfWoS1İncele - MakaleAçık Erişim2024Investigation of the nutritional habits of students receiving coaching education: a cross-sectional study
Kirkbir, Hakan; Tanyeri, Ozge Sezik; Hacicaferoglu, Serkan
Background and Study Aim Material and Methods The aim of this study is to examine the nutritional knowledge levels and habits of the students who will work in the field of sport sciences in Turkey and who are studying in the Faculties of Sport Sciences. The sample of the study consisted of 186 volunteer university students studying in the coaching departments of the Faculties of Sport Sciences, selected by simple random sampling method. General scanning model was used in the research. The data in the study were collected using the 32-item Nutrition Knowledge Scale for Adults. Results Within the scope of the scores in both sub-dimensions of the scale, it was determined that the perception scores of the participants in terms of independent variables were statistically close to each other and they had knowledge about nutrition in general. It was determined that there was a statistically significant difference between the nutritional knowledge levels according to the age variable, and the effect level was close to the middle. It was determined that there was no significant difference between other variables and nutrition. Conclusions In addition to a healthy life, healthy nutrition is important for coaches in the continuity of their professional life. It would be beneficial to have more information about nutrition in school curriculum. This will contribute to the fight against obesity, which is today's disease.
AtıfWoS1OpenAlex1İncele - MakaleAçık Erişim2024Scopus SJRQ3Antioxidant Activities of Different Peanut (Arachis hypogaea L.) Market Types by Spectrophotometric Techniques Combined with Chemometrics
Gıdık, Betül; Can, Zehra; Önemli, Fadul
Peanut is rich in oil and protein and has a large content of bioactive constituents consisting of tocopherols, phytosterols, and so on. Generally, Virginia, Spanish, Valencia and Runner market types are grown of peanut. In this study, it is aimed to determine the antioxidant activity, total phenolic content and total flavonoid content of peanuts from four different market types, for the first time, and group them with principal component analysis (PCA) and hierarchical cluster analysis (HCA). For PCA, PC1 and PC2 explained 87.655 % of the total variation and, according to the HCA of peanut samples, two main groups were determined. The total phenolic content changed 1.556 to 2.899 mg GAE/g. The lowest value have seen at Spanish merket type to determine the antioxidant activities of peanut samples were maked FRAP and DPPH assay, the lowest FRAP value (8.136 μmol FeSO47H2O/g sample) was seen at Valencia market type, the highest (14.004 μmol FeSO47H2O/g sample) was seen at Virginia market type. It was determined that the total flavonoid, total phenolic content, and antioxidant activities of the Virginia, Valencia, Spanish, and Runner market types included in the study were different from each other, and the Virginia market type showed superior characteristics compared to the others. The results obtained suggest that Virginia market type may be preferred more especially in peanut cultivation for food uses. It is thought that this study can be a source for future studies by eliminating a deficiency in the literature.
AtıfScopus2WoS2OpenAlex2İncele - Kitap BölümüAçık Erişim2024Pollen Morphology and Anatomy with Botanical Preferences Made by Bees: An Introduction Data
Canlı, Deniz; Bayram, Nesrin Ecem
Pollen is a microspore containing vegetative and generative cells prepared for pollination in seed plants. Because pollen grains show highly variable characteristics, these structures are used to evaluate kinship relationships and similarity levels in plants. However, plant sources of honey, which is consumed as an important food source and functional food, can also be determined by identifying the pollen grains included in the honey by bees. In this study, the characteristic parameters used for the identification of pollen grains in plants and the plant sources frequently visited by bees were mentioned. As a result, variables such as size, polarity and symmetry, shape, exine sculpturing, intine properties and apertures are the main characteristics used to describe pollen grains. Considering these variables, it can contribute to the identification of plant taxa. In addition, the plants that honey bees visit to collect nectar and the botanical origin/source of honey (monofloral-multifloral) can also be determined by identifying the pollen grains included in the honey.
AtıfScopus5OpenAlex4İncele - MakaleYalnız künye2024Scopus SJRQ2Effect of sesame protein/PVA nanofibers on oil separation and rheological properties in sesame paste
Yuzer, Mustafa Onur; Genccelep, Huseyin
This study aimed to prevent or minimize the oil phase separation that occurs during storage (0-90 days) of sesame paste at room temperature. In order to determine the changes during storage in the sesame paste samples, the zeta potential, rheological properties, and the separated oil ratio were determined. Significant (p < 0.01) effects of applied storage time and additives on the amount of oil separated in sesame pastes were determined. The oil separated in sesame paste samples varied between 3.83% and 16.29%. While the rate of separated oil increased three times in the control group over time, it showed an insignificant (p > 0.05) increase especially in the samples where 2% nanofiber was added. It was determined that the separation of the oil phase from the structure could be prevented up to 24.73% with the addition of SPI and up to 63.02% with addition of SPINL (nanofiber containing protein isolate) compared to the control. Practical applications: During storage, the particles in the sesame paste tend to precipitate, causing oil separation and residue cake, thus negatively affecting the acceptability of consumers. Additives were added in order to prevent or minimize oil phase separation, which occurs in sesame paste stored at room temperature and is not desired by consumers. As additives, nanofibers containing sesame proteins produced by the electrospinning method and sesame protein isolates (SPIs) were added. Added additives acted by preventing the separation of the oil phase from the structure. It has been determined that the addition of SPI to sesame pastes does not completely prevent the problem of oil separation in sesame paste, but is effective in delaying and reducing it. Since the oil decomposition can be reduced, the amount of oil separated and therefore the part that can sink to the bottom will decrease, so sesame paste will be consumed more appropriately and will contribute to the country's economy.
AtıfScopus9WoS7OpenAlex7İncele - MakaleYalnız künye2024Synergistic Strategies for Overcoming Salt Stress in Strawberry Farming: The Use of Organic Fertilizers and Plant Growth Promoting Rhizobacteria (PGPR)
Yavuz, Aysegul; Erdogan, Ummugulsum; Turan, Metin; Argın, Sanem; Kocaman, Ayhan
The study was carried out under salt-stress conditions, and three non-microbial commercial organic fertilizers purchased from Humintech GmbH (Grevenbroich, Germany) were applied to the soil for strawberry plants. The three promoters were Fulvagra®, based on fulvic acid, Liqhumus®, based on humic acid, and Microsense Root®, also based on humic acid. Treatment with Fulvagra® resulted in a remarkable 69.90% increase in average fruit weight and a 39.52% increase in yield in strawberry plants. These improvements remained significant when combined with plant growth promoting rhizobacteria (PGPR), resulting in a 61.81% increase in fruit weight and a 45.21% increase in yield. Liqhumus® treatment resulted in a significant 49.95% increase in fruit weight and a 39.30% increase in fruit yield. The introduction of PGPR further enhanced these effects by increasing fruit weight by 87.70% and yield by 63.84%. The Microsense Root® treatment showed 31.07 and 61.87% improvements for the respective parameters. In conjunction with this treatment, the use of PGPR produced the most significant results, with increases of 121.14 and 65.37% for respective parameters. These results indicate that the combined use of non-microbial commercial organic fertilizers with PGPR leads to higher efficiency and is promising for sustainable agricultural practices, particularly in improving the resistance of strawberry plants to salt-induced stress.
AtıfScopus4WoS5OpenAlex5İncele - MakaleAçık Erişim2024Scopus SJRQ1Ultrasonic assisted extraction of water-soluble vitamins from minor components of bee pollen with deep eutectic solvents (DESs) as green solvent
Çelik, Saffet; Gerçek, Yusuf Can; Kutlu, Naciye; Bayram, Sinan; Kırkıncı, Seran; Ecem Bayram, Nesrin
In this study, different deep eutectic solvents (DESs) were used for vitamin extraction from bee pollen. The DES combination with the highest total amount of individual vitamins was choline chloride: ethylene glycol (molar ratio 1:2). The response surface method was then used to optimize the extraction conditions. The independent variables used for optimization were ultrasonic power, time, and temperature, while the dependent variables were the total individual amino acids, total individual phenolic compounds, and total individual vitamin contents. Spectrophotometric analyses and antimicrobial activity were also determined in the extracts. In addition, AGREEprep, ComplexGAPI and BAGI tools were used to evaluate the greenness of the method. The results obtained with DES were compared with water, ethanol, and methanol extracts, which were considered control groups. As a result of optimization, the optimum conditions were found to be 75 % for ultrasonic power, 71.5 min for sonication time, and 40 °C for ultrasonic bath temperature. The model's composite desirability value (d) was found to be 0.81. The predicted value and the experimental values were close to each other. Furthermore, the most dominant vitamin in DES extracts was ascorbic acid, the most dominant amino acid was proline, and the most dominant phenolic compound was myricetin. The amounts of these compounds were higher than those obtained from water, ethanol, and methanol extracts. The spectrophotometric analysis results obtained higher yields with DES compared to the control groups. Antimicrobial activity analysis showed that pollen extracts prepared using choline chloride: ethylene glycol had a weak inhibitory effect for Gram-positive and Gram-negative bacteria but not yeast-like fungal strains. In conclusion, DES has been successfully used to extract vitamins and other bioactive compounds from bee pollen. The results obtained showed that DESs can be an alternative to organic solvents for the extraction of vitamins, which are among the minor components of bee pollen. Besides, the potential of the application different DESs for more efficient extraction of vitamins and components with important pharmaceutical properties from bee pollen needs to be evaluated in detail.
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