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    Apitherapy and Muscle Damage
    (Lahore Medical Research Center Llp, 2021) Ceylan, Ramazan; Erdogan, Yasar
    Aim: This study aims to compare the effects of dolgit cream, an anti-inflammatory drug in the NSAID group, is frequently used in treating injuries after sports activities, and natural honey, used due to its anti-inflammatory effect, on muscle damage. Methods: Twenty-one amateur male athletes voluntarily participated in this study (Age: 21 +/- 3). The participants were divided into three groups as honey treatment group (n=7), drug treatment group (n=7), and control group (n=7). In the gym, one-session of intense interval training consisting of movements (unusual push-ups, diamond push-ups, dips) in which the athletes participating in the study were not used was applied. Blood samples were taken consecutively for five days, one time before and four times after the training program. Blood samples were analyzed biochemically, and activation of Creatine Kinase (CK), Lactate Dehydrogenase (LDH) enzymes were determined. Besides, the participants' pain levels (Visual Analogue Scale) were monitored for four days after the training. SPSS 22.0 package program was used for data analysis. The suitability of the data for normal distribution was analyzed with the Shapiro-Wilk test, and it was determined that the data were not distributed normally. Kruskal-Wallis test was applied to determine the acute effect of the treatment protocols carried out in the treatment of muscle damage after the training Results: According to the result, no statistically significant difference was found between the treatment groups and the control group in the activation of CK, LDH in the blood serum (p>.05). According to the pain scale follow-up results, it was observed that the pain scores of the participants in the group who received honey treatment were lower and statistically significant in the 1st after the training (p<.05) Conclusion: As a result, the external application of natural honey in sports injuries may support modern medical treatment practices
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    Chemical composition acaricidal activity and honeybee safety of essential oils from Origanum acutidens, Satureja hortensis, and Juniperus communis against Varroa destructor
    (Taylor & Francis Ltd, 2026) Erdogan, Yasar
    Varroa destructor is a destructive ectoparasite of honeybees (Apis mellifera). This study investigates the chemical composition and bioactivity of essential oils obtained from three medicinal plants (Origanum acutidens, Satureja hortensis, and Juniperus communis). The chemical components of the essential oils were determined by Gas Chromatography-Mass Spectrometry (GC-MS). These oils were evaluated for their acaricidal, repellent, and insecticidal activities against V. destructor, as well as their lethal effects against honeybee larvae. The results revealed that the essential oils of O. acutidens (LC50: 2.18, LC90: 6.07 mu L/L) and S. hortensis (LC50: 1.79, LC90: 5.77 mu L/L) exhibited strong acaricidal effects, while those of J. communis (LC50: 3.75, LC90: 4.16 mu L/L) exhibited moderate activity. S. hortensis showed the highest repellent effect against V. destructor (ED50: 0.44, ED90: 1.25 mu L/L), followed by O. acutidens (ED50: 0.58, ED90: 4.22 mu L/L) and J. communis (ED50: 0.87, ED90: 46.3 mu L/L). Furthermore, the larval mortality rates remained below 5% in all treatments, indicating negligible toxicity to honeybee larvae. Overall, this study highlights for the first time the comparative acaricidal and repellent efficacy of these three essential oils under identical experimental conditions, emphasising their potential as natural and environmentally friendly alternatives for controlling V. destructor. Further research is needed to optimise application methods and evaluate long-term effects under field conditions.
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    Comparison of colony performances of honeybee (Apis Mellifera L.) housed in hives made of different materials
    (Taylor & Francis Ltd, 2019) Erdogan, Yasar
    Numerous flowering plants rely on bees for pollination. Any natural or anthropogenic factor that threatens colony survival can have a large impact on plant production. This study investigates the effects of manmade hives built from different materials and how these may influence colony growth. Ten each of three hive types were selected, wooden, polystyrene and composite insulated hives. Factors of adult bee numbers, brood development, nectar flow period weight gain, bee flight activity, aggression response, and honey yield were selected markers of hive development. Statistically, each hive type produced significant variation (p < .05). The greatest overall productivity across all factors was for insulated hives made of composite material, with honey production approximately 35% times that of wood, 14% times that of polystyrene and in terms of the development of honeybee colonies, the average of other hives is 10.2 times.
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    Determination of the effect of electric fence system on productivity and behaviour of honeybees housed in different beehive types (Apis mellifera L.)
    (Taylor & Francis Ltd, 2019) Erdogan, Yasar
    This study was conducted in 2018 in order to determine the effects of an electric fence system on honeybee colonies housed in hives made from different materials. The experiment was carried out with honeybee colonies of 36 Caucasian races (Apis mellifera Caucasica) in full-size Langstroth hive. In terms of mean values of the aggressive behaviour of honeybee colonies were found to be the highest (13.57 number/colony) application group where the conductor wires of electric fence system are within a 1 m distance from hives and the lowest (2.39 number/colony) were obtained from control application group. The highest mean values adult bee development (23.76 +/- 12.34 number/colony), development of brood area (5421.25 +/- 1432.75 cm(2)/colony), nectar flow period weight gain (46.42 +/- 3.61 kg/colony), flight activity (107.38 +/- 11.74 number/colony) and honey yield (21.55 +/- 1.54 kg/colony) were determined in control groups. When the average values of honeybees robbing behaviour were examined, the highest value (3.33 +/- 0.32 number/colony) was determined in the control groups. This experiment shows that the electromagnetic and electric fields produced by the electric fence system have negative effects on honeybees. In order to minimise the negative effects of the electric fence system on the bees, hives should be covered with a metal screen or should be placed long distance (minimum 2 m) from the electric fences.
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    The effects of medical and aromatic plant extracts on some physiological characteristics of honeybee (Apis Mellifera l.) colonies
    (Bursa Uludag University, 2020) Erdogan, Yasar; Cengiz, M. Murat
    In this study, the effects of extracts obtained from medicinal and aromatic plants added to syrups used to feeding honeybee (Apis mellifera L.) colonies on some physiological characteristics of colonies were investigated. The experiment was carried out on 6 groups of 5 colonies. These groups are syrup (S), syrup + Urtica dioica (SU), Syrup + Melissa officinalis (SM), Syrup + Hypericum perforatum (SH), Syrup + Achillea millefolium (SA) and syrup + Thymus serpyllum (ST). As a result of the research, the sealed brood area data were determined as 3013.24±1939.26, 3107.00±2060.42, 3270.81±2194.80, 3091.20±1962.69, 3273.90±2095.49 and 3613.06±2348.27 cm2 in S, SU, SM, SH, SA, ST groups, respectively. When we compare the honey yields of the experimental groups, according to group S, SU increased by 18.48%, SM 43.10%, SH 16.04%, SA 27.35% and ST 53.86%. Therefore, syrup + medicinal and aromatic plant extract mixture given to honey bee colonies may have a positive effect on colony development and honey yield. © 2020 Bursa Uludag University. All rights reserved.
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    Physicochemical properties, organic acid composition and free amino acid profiles in selected Cornus mas L. genotypes from the Çoruh Valley
    (Univ Agr Sci & Veterinary Med Cluj-Napoca, 2025) Erdogan, Ummugulsum; Erdogan, Yasar
    Cornus mas L. (cornelian cherry) is a species widely used from traditional consumption to modern industrial applications due to its high nutritional content, richness in phenolic compounds, and functional food potential. This study aimed to comprehensively evaluate the physicochemical properties, organic acid composition, and free amino acid profiles of 15 cornelian cherry genotypes selected from the & Ccedil;oruh Valley, one of Turkey's important biodiversity centers. Fruit samples were collected at full physiological maturity, and TSS, titratable acidity, pH, sugar composition, ascorbic acid, and tannin contents were analyzed using standard methods. Organic acids were determined by HPLC-UV, and free amino acids were determined by HPLC with OPA/FMOC derivatization. All measured traits differed significantly among genotypes (p < 0.05). Malic acid ranged from 38.12 to 251.34 mg/100 g, and total organic acids from 588.89 to 1038.15 mg/100 g. Free amino acid contents ranged from 71.34 to 93.14 mg/100 g, with the highest values in the G7 and G5 genotypes. This study demonstrates that the & Ccedil;oruh Valley is an important hotspot of genetic diversity for cornelian cherry and contains genotype groups suitable for different uses. Overall, the findings provide a biochemical basis for selecting genotypes for breeding, nutritional applications, and industrial processing.