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Phytochemical Analysis of Solidago Virgaurea: Quantitative Analysis of Bioactive Compounds By LC-MS/MS, Ascertaining the Antioxidant Activity and Phenolic Profile by Potentiometric Sensors 全文
2025
İlyas Yıldız | Ozgur Eminagaoglu
Solidago virgaurea L. subsp. virgaurea (SVSV) has long been used in traditional medicine for treating urinary tract disorders, nephrolithiasis, and inflammatory-related conditions. This study aimed to evaluate the antioxidant capacities and phenolic profiles of SVSV extracts. Antioxidant activities were assessed using the FRAP and DPPH assays. Moreover, total phenolic content was determined by Folin-Ciocalteu reagent (FCR). The advanced technique, a potentiometric sensor, was utilized for antioxidant assays and FCR. Phenolic composition in plant extract was determined by LC–MS/MS. Solidago virgaurea methanolic extract exhibited strong antioxidant potential with a FRAP value of 19.07 µmol TE/mg extract and a DPPH radical scavenging activity of 78.8% at 128 ppm. The total phenolic content was found to be 413.82 mg GA/mg extract. Compared to standards, SVSV methanolic extract showed higher DPPH activity (78.80%) than BHT (68.25%), BHA (49.06%), and Trolox (65.25%), and was the same as with gallic acid (78.55%). LC-MS/MS analysis revealed that the major phenolic compounds were trans-cinnamic acid (126.19 µg/g), chlorogenic acid (58.83 µg/g), and vanillin (26.17 µg/g), along with rutin (11.36 µg/g), gentisic acid (11.03 µg/g), and quercetin (2.47 µg/g). These findings demonstrate that SVSV possesses remarkable antioxidant capacity and a diverse phenolic profile, supporting its potential use as a functional food ingredient and natural source of antioxidants.
显示更多 [+] 显示较少 [-]Preovulatory Follicle Size and Reproductive Parameters in Arabian Mares: A Comprehensive Analysis 全文
2025
Beste Çil | Kumsal Orkun | Mustafa Oğuzhan Şahin | Ali Alparslan Sayım
Preovulatory Follicle Size and Reproductive Parameters in Arabian Mares: A Comprehensive Analysis 全文
2025
Beste Çil | Kumsal Orkun | Mustafa Oğuzhan Şahin | Ali Alparslan Sayım
While the size of the preovulatory follicle is a crucial marker of reproductive potential in mares, its connection to reproductive parameters, especially in Arabian mares, remains uncertain. This study examined the association between preovulatory follicle size and various reproductive parameters in 301 Arabian mares, monitored ultrasonographically over four years and 563 estrous cycles. The mares were categorized into four age groups: 3–8, 9–13, 14–17, and 18 years and older. The preovulatory follicle diameter across consecutive cycles and the size of follicles leading to pregnancy post-ovulation were analyzed in relation to the ovulation side, age, parity, ovulatory cycle, and parous state. The mean preovulatory follicle size was 46.3±4.34 mm (range: 39–60 mm), with no significant difference between the pregnancy and non-pregnancy cycles (p=0.490). Parity was not correlated with overall follicle size (r=-0.013, p=0.757) or follicle size during the pregnancy cycles (r=-0.060, p=0.303). However, preovulatory follicle diameter varied significantly across ovulatory cycles (p=0.040), with the second cycle having the smallest mean follicle size (45.45±0.35 mm) compared to the first (46.5±0.23 mm) and third (46.95±0.53 mm) cycles. Additionally, parous mares had significantly larger follicles (46.40±0.19 mm) than maiden mares (45.25±0.57 mm, p=0.050), while age group (p=0.796) and ovulation side (p=0.558) had no significant effect on follicle size. Follicle size remained consistent between pregnancy and non-pregnancy cycles across different age groups, consecutive cycles, parity states, and ovulation sides. These findings suggest that although follicle size varies across ovulatory cycles and parous states, it does not significantly affect pregnancy outcomes in Arabian mares. This insight could help refine breeding strategies by emphasizing the role of factors other than follicle size in optimizing reproductive success.
显示更多 [+] 显示较少 [-]Design and Experimental Evaluation of a Minimal-Damage Cotton Topping Device 全文
2024
Yang Xu | Changjie Han | Shilong Qiu | Jia You | Jing Zhang | Yan Luo | Bin Hu
Cotton topping is a crucial aspect of cotton production, inhibiting apical dominance in cotton plants. Existing cotton topping machinery often results in over-topping. To address this challenge, the characteristics of manual topping operations were emulated by incorporating bionic principles to analyze the motions involved. Studying the artificial topping action and the trajectory of hand movements led to the design of a bionic topping manipulator and a trajectory-generating mechanism, serving as the core component of the cotton topping device. A flat-bottomed follower disc cam mechanism was used to facilitate the automatic opening and closing of the manipulator. The cam&rsquo:s working area was divided, its contour curve selected, and the manipulator&rsquo:s pulling spring&rsquo:s action point and length determined. Subsequently, parametric equations for the motion trajectory of the bionic topping manipulator were established. Building on the topping mechanism&rsquo:s working principle, a mechanical model was developed to analyze the swing of cotton plants. The model demonstrates that the displacement at the free end of the stalk was primarily influenced by its length. A lifter was then designed to reduce plant swing amplitude and orderly distribute its top position. The designed prototype of a single-row cotton bionic topping device was tested and verified through orthogonal tests, using operating speed, rotational speed, and topping depth as test factors. The topping rate and over-topping rate served as the indices for testing. The results indicated an average topping rate of 78.67% and an over-topping rate of 8%. This was achieved at a 0.3 m/s operating speed, a 40 r/min rotational speed, and a 110 mm topping depth. Cotton topping devices demonstrated greater effectiveness in minimizing damage to cotton plants, and future research should focus on enhancing topping rates even further. This study provides a theoretical foundation and test data to support the design of cotton topping machinery, guiding future mechanical improvements and agricultural practices.
显示更多 [+] 显示较少 [-]Can Inbreeding Increase Viability? A Case Study on An Infectious Outbreak in An Inbred Pigeon Flock 全文
2025
Hakan Erdem | Türker Savaş
Can Inbreeding Increase Viability? A Case Study on An Infectious Outbreak in An Inbred Pigeon Flock 全文
2025
Hakan Erdem | Türker Savaş
Inbreeding increases homozygosity, resulting in a loss of alleles and lower genetic variation than the parental population. In a small population, this low genetic variation and homozygosity can quickly lead to adverse effects. This study was conducted on a flock of pigeons with 32 adult pigeons. A disease characterized by dyspnea, anorexia, vomiting and sudden death has occurred in birds. Mortality and morbidity were recorded during the outbreak. The inbreeding coefficient was determined in the flock, with pedigree records going back 12 years. Although not significant, the inbreeding coefficient of dead birds are lower than that of symptomatic or healthy birds. It is also seen that there is no statistical significance in terms of inbreeding depression in morbidity or mortality status. The result indicated that inbreeding depression in morbidity and mortality was not observed in this particular disease case.
显示更多 [+] 显示较少 [-]The Load Cycle Amplitude Model: An Efficient Time-Domain Extrapolation Technique for Non-Stationary Loads in Agricultural Machinery 全文
2024
Zihan Yang | Xuke Liu | Zhenghe Song | Hanting Liu
In traditional time-domain extrapolation methods, the peak over threshold (POT) model is unable to accurately identify large load cycles in the load time history, resulting in distorted extrapolation results, particularly when addressing non-stationary loads. To address this problem, this paper proposes a time-domain extrapolation method based on the load cycle amplitude (LCA) model. The core of the method involves using load cycle amplitude features extracted from the measured loads as the basis for modelling, rather than extreme turning points based on threshold extraction. This approach prevents the load&rsquo:s time-domain characteristics from compromising the accuracy of the extrapolation results. The case analysis results demonstrate that the extrapolation method based on the LCA model achieves more reliable results with both non-stationary and stationary loads. Furthermore, the streamlined modelling process results in reductions of 10.63% and 20.84% in the average computing time for the algorithm when addressing stress and vibration loads, respectively. The LCA model proposed in this paper further facilitates the integration of time-domain extrapolation methods into reliability analysis software.
显示更多 [+] 显示较少 [-]Geleneksel Gıdaların Sosyolojik Boyutu 全文
2025
Fikret Nafi Çoksöyler | Sevda Aktoklu
Yerel geleneksel yemekler bölgelerin tarihsel, coğrafi ve kültürel özelliklerini yansıtırken, bireylerin yeme alışkanlıkları ise sosyal ve ekonomik yapıya dair ipuçları sunar. Günümüzde, küresel endüstriyel gıda üretimi ve dağıtımı karşısında geleneksel gıda üretimi ciddi bir rekabet gücü kaybı yaşamaktadır. Geleneksel tarımsal ürünlerin üreticisi olan çiftçiler, yok olma tehlikesiyle karşı karşıyadır. Bu durum hem geleneksel ürünlerin kaybı hem de yeme-içme kültürümüzün önemli bir kısmının yok olması anlamına gelmektedir. Avrupa Birliği (AB) bu kaybın önlenmesi ve sorunun tüm boyutları ile değerlendirilip çözümü için kısa adı TRUEFOOD olan büyük bir proje yürütmüştür. Bu proje kapsamında AB, geleneksel gıdaların küresel rekabet koşullarında korunmasını sağlarken, üretim süreçlerinin çağın gerektirdiği gıda güvenliği standartlarına uyumlu hâle getirilmesini hedeflemiştir. Türkiye’de ise bu sürece parelel olarak başlatılan ve yaklaşık 20 yıldır düzenlenen Geleneksel Gıdalar Sempozyumu (GGS) serisi ile geleneksel gıdalarımız kayıt altına alınmaya çalışılmaktadır. Ayrıca çeşitli kurumlar AB’de olduğu gibi Coğrafi İşaret (Cİ) tescilleri ile “geleneksel gıdaları” korumaya çalışmaktadır. GGS serisinde sunulan birçok makalede, geleneksel gıdaların sadece ham madde ve üretim teknolojilerinden ibaret olmadığı; bununla birlikte toplumsal kimlik ifadesi, dini ritüel, dayanışmayı teşvik eden bir olgu ve bireylerin hatıralarını yansıtan bir bütün olduğu görülmektedir. Serinin gelecek sempozyumlarında ise “geleneksel gıdalarımızın” kayıt altına alınmasında onların hikâyelerinin ve sosyolojik boyutlarının birlikte inceleneceği bir gelenek oluşturulmasının kültürümüzün devamlılığı açısından büyük yararlar sağlayacağı düşünülmektedir.
显示更多 [+] 显示较少 [-]Growing Degree Day Climatology in Aydın, Türkiye 全文
2025
Ercan Yeşilırmak
Plants need to accumalate heat to complete a particular or whole growth period. This accumalation depends on temperature thresholds above or below which plant growth ceases, and on air temperature. It can be speculated that more heat accumulation is available for plants due to rapid warming within three or four decades. This study presents more recent heat accumulation for plants, quantified using a useful index called growing degree day (GDD), for five locations (Söke, Kuşadası, Aydın, Sultanhisar and Nazilli) in Aydın, Türkiye, during the latest climatic normal period from 1991 to 2020. GDD values were calculated both in monthly basis from March through October, and in daily basis from March 1st to October 31st. Monthly GDD averages, as expected, showed a pattern that increased from March to July or August, then decreased thereafter till October. Range and standart deviation showed approximately an opposite pattern, suggesting higher uncertainity in relatively colder months. The results are expected to provide farmers or agricultural practitioners with the latest averages of GDD to predict plant growth and development.
显示更多 [+] 显示较少 [-]Exploring the Antioxidant and Neuroprotective Potential of Muscari armeniacum: Phenolic Profiling and Enzyme Inhibition 全文
2025
Fevzi Topal | Firat Yılmaz | Meryem Topal | Ahmed Menevşeoğlu
This study aimed to investigate the antioxidant and enzyme inhibitory properties of Muscari armeniacum, a plant native to Türkiye, which is known for its bioactive compound content. Ethanol extracts of Muscari armeniacum were prepared and analyzed using a variety of bioanalytical methods to assess its potential health-promoting properties. The antioxidant capacity was evaluated through Fe³⁺-Fe²⁺ reduction capacity, CUPRAC, DPPH, and ABTS radical scavenging activities. Additionally, the total phenolic and flavonoid contents of the extracts were determined, as these compounds are critical indicators of antioxidant potential. The antioxidant activity of Muscari armeniacum was compared with five standard antioxidants commonly used for benchmarking: BHA, α-tocopherol, BHT, trolox, and ascorbic acid. The extract demonstrated a high flavonoid content (23.24 µg QE/mg extract) and a significant amount of phenolics (14.38 µg GAE/mg extract), with the flavonoid content being particularly noteworthy. In addition to its antioxidant properties, the enzymatic activity assays revealed that the extract significantly inhibited acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes, which are associated with neurodegenerative diseases such as Alzheimer’s. The IC₅₀ values were determined to be 54.14 mg/mL (R² = 0.9695) for AChE and 58.73 mg/mL (R² = 0.9609) for BChE, indicating moderate enzyme inhibition. These results suggest that Muscari armeniacum could serve as a valuable source of bioactive compounds with significant antioxidant and enzyme inhibitory activities. Its potential applications in the treatment of oxidative stress-related diseases and neurodegenerative disorders make it a promising candidate for further pharmacological studies. This research underscores the importance of exploring native plants for their medicinal and therapeutic potential, contributing to the development of alternative treatments for challenging health conditions.
显示更多 [+] 显示较少 [-]Evaluating the Nutritional and Safety Aspects of Pyracantha coccinea: Antioxidant Activity, Mineral, and Heavy Metal Content 全文
2025
Gül Görmez
In this study, the fruits of Pyracantha coccinea, known for their ornamental and medicinal properties, were analysed to evaluate their antioxidant capacity, mineral content, and heavy metal concentrations. The antioxidant potential of Pyracantha coccinea was determined using DPPH, CUPRAC, and ABTS tests. Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES), Atomic Absorption Spectroscopy (AAS), and Gerthard Dumatherm techniques were used to determine the mineral and nutrient composition of the plant. As a result of the evaluation, calcium (0.25±0.02%), protein (4.29±0.47%), potassium (0.39±0.01%), magnesium (0.197±0.01%), sodium (0.08±0.01%), iron (0.012µg/g DW), aluminium (138±9.6 µg/g DW), cobalt (0.541±0.11 µg/g DW), chromium (0.422±0.05 µg/g DW), manganese (20±1.7 µg/g DW), zinc (43.9±4.6 µg/g DW), % DPPH (76.92±0.48) % ABTS value (77.52±0.39) and CUPRAC values (0.771±0.045 for 100ppm) were determined. In particular, the high levels of chromium (Cr) and zinc (Zn) in the fruits exceed the thresholds considered safe for medicinal applications and suggest that the heavy metal content in plants for medicinal use should be critically evaluated within acceptable limits. This study aims to explore the nutritional value and safety of Pyracantha coccinea by examining its antioxidant properties, mineral content, and potential heavy metal contamination. The findings will help shed light on its potential benefits and risks, offering valuable insight for its use in health, nutrition, and environmental applications.
显示更多 [+] 显示较少 [-]Bıldırcın Rasyonlarına Kekik Yağı İlavesinin Yumurta Verimi ve Kalite Özelliklerine Etkisinin Diskriminant Analizi ile İncelenmesi 全文
2025
Şevket Evci | Erva Eser | Rabia Olgun | Ayça Melisa
Çalışmada, Japon bıldırcınlarının (Coturnix coturnix Japonica) yemlerine farklı oranlarda kekik yağı ilavesinin yumurta kalite parametreleri üzerindeki etkileri incelenmiştir. Çalışma, 6 haftalık yaşta 72 dişi Japon bıldırcını üzerinde gerçekleştirilmiştir ve bıldırcınlar kontrol, düşük kekik yağı (150 mg/kg) ve yüksek kekik yağı (300 mg/kg) gruplarına ayrılmıştır. Rasyona farklı oranlarda kekik yağı eklenmesinin bazı yumurta dış ve iç kalite parametreleri üzerine etkileri istatiksel olarak incelenmiştir. Yapılan tek yönlü varyans analizi (ANOVA) sonucundayumurta kabuk oranı, şekil indeksi ve sarı rengi gibi parametrelerin gruplar arasında istatiksel olarak anlamlı farklılıklar gösterdiği belirlenmiştir (P<0,05). Çalışmada elde edilen veriler, ANOVA sonrasında, Diskriminant analizi ile de incelenmiş ve grupların yumurta kalite parametreleri bakımından gruplanmaları belirlenmiştir. Diskriminant analizi sonucunda iki fonksiyon tanımlanmıştır. İlk fonksiyonda, düşük kekik grubunun diğer gruplardan belirgin bir şekilde ayrıldığı; özellikle kabuk ağırlığı ve pH bakımından farklılık olduğu belirlenmiştir. İkinci fonksiyonda ise kontrol ve yüksek kekik grupları arasında önemli ayrım tespit edilmiştir. Her iki fonksiyonda da ANOVA sonuçlarına benzer şekilde yumurta sarı rengi bakımından gruplar arasında farklılık gözlenmiştir. Sonuçlar, kekik yağının 150 mg/kg dozunda yem katkı maddesi olarak kullanılmasının yumurta kalitesini olumlu yönde etkileyebileceğini, ancak bıldırcın rasyonuna 300 mg/kg kekik yağı ilavesinin olumsuz sonuçlar doğurabileceğini göstermektedir.
显示更多 [+] 显示较少 [-]Growth Performance, Body Measurements and Live Weight Estimation of Tülü (Bactrian × Dromedary F1) Calves from Birth to Six Months of Age 全文
2025
Atakan Koç | Alkan Çağlı
A hybrid camel Tülü (Bactrian male x Dromedary female F1) males are preferred in camel wrestling, which is a culture unique to Anatolia. In this study, changes of live weight (LW), daily weight gain (DWG), and body measurements (BMs) of Tülü calves in the first 6 months of age in a farm in Aydın province, Türkiye, were determined as well as developing equations to estimate LW from body measurements. Tülü calves average birth weight (BW) was 34.7±1.80 kg and reached 175.3±3.38 kg at the age of 6 months with a 0.768±0.03 kg DWG during this time. Although the monthly total weight gains and monthly DWG averages of the calves in the first 6 months were similar, the changes in monthly LW and BMs were statistically significant (P<0.01). Abdominal girth (AG) alone can be used to predict LW in the analysis performed to estimate LW from body measurements by stepwise regression (R²=95.62%). In conclusion, Tülü calves had relatively high growth rate in their first six months of age, and unlike other livestock species, instead of hearth girth (HG), AG that includes the hump can be used to estimate LW of Tülü calves.
显示更多 [+] 显示较少 [-]Aile Planlaması Sürecinde Kullanılan Tıbbi Aromatik Bitkiler ve Sosyal Boyutunun Değerlendirilmesi: Kırsal Kadına Yönelik Yaklaşım Önerileri 全文
2025
Neslihan Özdemir
Bu çalışmanın amacı gebelikte, doğum sonrasında ve emzirme döneminde kullanılan tıbbi ve aromatik bitkiler hakkında genel bilgi vermek ve literatüre katkı sağlamaktır. Çalışmanın sonucunda; Adaçayı (Salvia officinalis L.), Nane (Mentha piperita L.), Melisa bitkisi (Melissa officinalis L.), Mayıs Papatyası (Matricaria chamomilla L.), bitkilerinin yaygın oranda; Ihlamur (Tilia tomentosa Moench), Kekik-Zahter (Thymus serpyllum L.), Isırgan Otu (Urtica dioica L.), Çörek otu (Nigella sativa L.), Badem (Amygdalus communis L.), Zencefil (Zingiber officinale Roscoe) bitkilerinin orta düzeyde; son olarak Ekinezya (Echinacea purpurea (L.) Moench), Sarımsak (Allium sativum L.), Zerdeçal (Curcuma longa L.), Biberiye (Rosmarinus officinalis L.), Sarı Kantaron (Hypericum perforatum L.), Keten tohumu (Linum usitatissimum L.), Ahududu yaprağı (Rubus idaerus L.), Çemen otu (Trigonella foenum-graecum L.) bitkilerinin ise az oranda kullanıldığı belirlenmiştir. Gebelerin, stres düzeylerini azaltmak, bulantı ve kusma gibi sorunlarla başa çıkmak amacıyla bitkisel ürünlere başvurduğu görülmektedir. Doğum sonrası dönemde de, stresin hafifletilmesinin yanı sıra süt üretimini artırmak için bitkisel çözümler tercih edilmektedir. Ancak, bazı bitkisel ürünlerin gebelik ve doğum sonrası dönemde kullanımı ile ilgili dikkat edilmesi gereken önemli noktalar bulunmaktadır. Böyle bitkilerin kullanımı gerek annenin gerekse bebeğin sağlığını olumsuz yönde etkileyebilmektedir. Bu nedenle, gebeler ve emziren annelerin, herhangi bir bitkisel ürün kullanmadan önce mutlaka bir sağlık profesyoneline danışmaları büyük önem taşımaktadır.
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