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Öğe Biological activity studies on the aqueous methanol extract of Anchusa undulata L. subsp. hybrida (Ten.) Coutinho(MARMARA UNIV, 2018) Taban, Kevser; Eruygur, Nuraniye; Ustun, OsmanThe genus Anchusa L. (Boraginaceae) is represented by 15 species in the flora of Turkey. Anchusa species are used traditionally as wound healing and diuretic agent. In addition, some Anchusa species are used as demulcent, expectorant, analgesic, sedative, diaphoretic and antihypertensive purposes. Carminative, antidiabetic, hemostatic and antirheumatical usage is also recorded. The aim of this study is to determine in vitro antioxidant, anti-AChE, anti-BuChE and a-glucosidase activity of methanol extract (Methanol: water = 80: 20, v/v) prepared from roots and aerial parts of Anchusa undulata L. subsp. hybrida (Ten.) Coutinho. Antioxidant activity was evaluated using ABTS and DPPH radical scavenging assay, total phenolic and total flavonoid content. IC50 values for DPPH were 239.47 and 292.04 mu g/mL and for ABTS were calculated as 41.15 and 32.3 mu g/ml. The total phenolic content of root and herbal extract were found as 130.39 and 122.94 mg/g, while flavonoid content as 65.25 and 117.5 mg/g. In the enzyme inhibition studies, the methanol extract showed cholinesterase and alpha-glucosidase enzyme inhibition activities with the increasing concentrations. The significant enzyme inhibition activities are depended on higher amount of phenolic compounds.Öğe Cholinesterase, ?-glucosidase, ?-amylase, and tyrosinase inhibitory effects and antioxidant activity of veronica officinalis extracts(2018) Eruygur, Nuraniye; Uçar, EsraIn this study, inhibition ability of Veronica officinalis extracts against Alzheimer’s disease-related enzymesacetylcholinesterase (AChE) and butyrylcholinesterase (BuChE), diabetes mellitus related enzymes ?-glucosidase and ?-amylase and antioxidant of Veronica officinalis were investigated. To the best of our knowledge, there are no previous studieson the enzyme inhibition activities of the V. officinalis extracts. For this aim, V. officinalis extracted with methanol and waterby maceration method and their antioxidant activities were evaluated by DPPH (2,2-Diphenyl-1-picrylhydrazyl), ABTS [2,2?-Azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid)] radical scavenging assays, total phenol, total flavonoid content, ironchelating and ferric reducing power assays. The enzyme inhibition activity was performed with 96-well plate method.According to the obtained results; the plant extracts have good antioxidant effects. In the same time, the water extract havestronger inhibition activity against AChE, BuChE and ?-glucosidase, ?-amylase, and tyrosinase than methanol extract. Theexperimental findings indicated that the water extract exerted the higher ?-glucosidase, ?-amylase and tyrosinase (82.07 2.91, 63.61 3.93 and 47.47 0.53 at 2 mg mL -1 , respectively) inhibition than reference drugs. The obtained resultsdemonstrate that this plant has a significant potential for improving pharmaceutical formulations.Öğe Comparative study of in vitro antioxidant, acetylcholinesterase and butyrylcholinesterase activity of alfalfa (Medicago sativa L.) collected during different growth stages(DE GRUYTER POLAND SP ZOO, 2018) Eruygur, Nuraniye; Dincel, Burak; Dincel, Nazire Gulsah Kutuk; Ucar, EsraMedicago sp. are often consumed as vegetable, salad and herbal tea as a form of fresh leaves and herbs. It is also very important in animal feeding, because it contains high percentage of protein and some important phytochemicals. In addition, traditionally, the leaves or other parts of the plant were used for treatment and preventing of kidney disorders, osteoporosis, anemia, diabetes, ulcer, coronary diseases, some cancers, and menopausal symptoms. In previous reports, it has been demonstrated that this plant has scavenging activity of the free radicals, which are involve in the development of the hypertension, Lschemia, neurodegenerative and rheumatoid diseases. In this study, the antioxidant, enzyme inhibitory activities of M. sativa L. collected in two growing period and phenolic substances that may be responsible for these activities were investigated. In this way, the beneficial effects of the plant will he revealed and a scientific work will be provided for the evaluation of the pharmaceutical and food industry.Öğe Fatty acid composition analysis of some apiaceae plants using gas chromatography-flame ionization detector (GC-FID)(Selçuk Üniversitesi, 01.10.2024) Eruygur, Nuraniye; Ayaz, Fatma; Bağcı, Yavuz; Bakır, Muhammed Raşit; Kara, HüseyinBackground/aim: The Apiaceae family, also referred to as the parsley or carrot family, comprises a diverse group of plants with significant ecological and economic importance. The fundamental building blocks of plant lipids, fatty acids are involved in a number of critical biological functions. Flame ionization detection in gas chromatography (GC-FID) is a potent analytical method widely used for the qualitative and quantitative analysis of fatty acid composition in plant samples. Materials and methods: In this study, we investigated the fatty acid profiles of several Apiaceae plants using GC-FID to elucidate their lipid composition and potential applications. Results: A wide spectrum of fatty acids was confirmed, ranging from C6:0 to C22:6. Astrodaucus orientalis leaf and fruit were found rich in palmitic acid (C16:0; 35.96% and 37.65%, respectively). Ferulago asparagifolia was determined as the richest sample in terms of poly-unsaturated fatty acids such as linoleic acid (C18:2 cis, 25.65%), alpha linoleic acid (C18:3n3, 7.42%) and eicosadienoic acid (C20:2, 32.66%). Ferulago syriaca ethanol and hexane extracts contained considerable amount of oleic acid (C 18:1 n9, 40. 37% and 49.19%, respectively). Conclusion: Our review of the literature revealed that no prior reports have been made about the fatty acid compositions of Astrodaucus orientalis, Ferulago asparagifolia and Ferulago syriaca. As a result, the information provided here may be the first to describe the fatty acid contents of these species. Exploring the lipid profiles of these plants can enhance their potential applications in the food, pharmaceutical, and cosmetic industries.Öğe In vitro antioxidant assessment, screening of enzyme inhibitory activities of methanol and water extracts and gene expression in Hypericum lydium(SPRINGER, 2019) Eruygur, Nuraniye; Uçar, Esra; Akpulat, Hüseyin Aşkın; Shahsavari, Keyhan; Safavi, Seyed Mehdi; Kahrizi, DanialHypericum lydium Boiss. is a perennial plant of the Hypericaceae family, which has been used in particular to treat depression. The aim of this study was to determine in vitro antioxidant, antimicrobial activities, anticholinesterase (acetylcholinesterase (AChE)/butyrylcholinesterase (BChE)), antidiabetic activities (-glucosidase/-amylase) and Tyrosinase inhibitor activity of methanol and water extracts of H. lydium. Also, gene expression has been evaluated in the shoot and root by microarray technology. So, in general, the purpose of this study is to study the active molecules such as antioxidant, antimicrobial, antidiabetic, enzymes and genes in the plant, which is the first to be reported. The experiments were conducted in a completely randomized design with three replications. In addition, gene expression was compared in the shoot and root parts. Expression profiling was carried out by microarrays. According to the results, the highest chemical components were determined in methanol extract rather than water extract. There was a difference between the obtained components. While the highest antioxidant activity was determined from the methanol extract of plant herbs for DPPH Free Radical Scavenging Activity, antioxidant activity was the same in both methanol and water extracts using the ABTS method. The methanol extract demonstrated stronger anticholinesterase (AChE and BChE) and -amylase inhibition activity. This study was complemented by the detection of antioxidant activity and some enzyme inhibition activity in the methanol extract. Microarray showed 10,784 genes had significantly different expression in root and shoot. There was a positive effect of methanol extract in respect of different activities compared to the water extract. Gene expression showed that the number of expressed genes in the root was greater than the shoot.Öğe Modeling of Total Phenolic contents in Various Tea samples by Experimental Design Methods(SCIENDO, 2018) Eruygur, Nuraniye; Dincel, Nazire Gulsah Kutuk; Kutuk, NursahTea, from the old ages to the day, is widely consumed both for enjoyment and health care due to its positive effects. The consumption of these products is increasing day by day as a result of the clear presentation of the fact that tea contains high amount of antioxidant substances (such as phenolic compounds), which is important in prevention and treatment of diseases. Tea beverage is a very important source of polyphenols. In this study, phenolic content and antioxidant capacity of different tea species were calculated by modeling with experimental design method. In the experimental part, polyphenol content was determined using the Folin-Ciocalteu method. The total amount of phenolic substance content was examined by Box-Behnken design and response surface method on black tea, green tea and white tea on different extraction temperature, extraction time and solid / liquid ratio. Solid / liquid ratio was found to be the most important parameter in terms of polyphenol content extraction from different tea samples. The highest polyphenol amount (411.762 mg gallic acid / mL) was found in green tea. To the best of our knowledge, this is the first data presenting comparatively study the effect of extraction condition on amounts of phenolic compounds from different tea samples.Öğe Pharmacognostic, Physicochemical, Phytochemical Screening and In-Vitro Antioxidant Activity of Chrysochamela Noeana, Endemic in Türkiye(Selçuk Üniversitesi, 2022) Eruygur, Nuraniye; Tekin, Mehmet; Dönmez, ErolThe aim of the present study was to conduct preliminary phytochemical screening, pharmacognostical and physicochemical investigation of Chrysochamela noeana. The fresh and dried herbs were studied by morphology, microscopy, preliminary phytochemical screening and florescence analysis of powdered drug. In addition, physicochemical parameters were studied according to WHO guidelines. Physicochemical parameters and florescence analysis were also performed. The preliminary phytochemical analysis revealed the presence of steroids, flavonoids, phenolic compounds, and carbohydrates. Total phenol contents were 245 ± 3.67, 179.06 ± 4.52, and 15.98 ± 3.32 (GAE mg/g extract) and total flavonoid content were 180.85 ± 8.21, 146.41 ± 2.56, and 13.46 ± 0.23 (QUE mg/g extract) for ethyl acetate, methanol, and water extracts, respectively. The IC50 value for extracts in ABTS radical scavenging activity were calculated in order of 51.47, 122.26 and 1146.91 µg/mL, and in DPPH for 1.55, 1.13 and 27.16 mg/mL for ethyl acetate, methanol, and water extracts, respectively. The results of these studies could be useful for correct identification and detection of adulterants from this plant material.Öğe A Simple Isocratic High-perfomance Liquid Chromatography Method for the Simultaneous Determination of Shikonin Derivatives in Some Echium Species Growing Wild in Turkey(TURKISH PHARMACISTS ASSOC, 2018) Eruygur, NuraniyeObjectives: Dried roots of Echium species are used in Turkey for the treatment of wounds, inflammation, and depression. In this study, an reversed-phase-liquid chromatographic method with isocratic elution was developed to determine shikonin derivatives in Echium species. Materials and Methods: The chromatographic separation and quantification was performed on a C18 column (ACE, 150 mm x 4.6 mm, 5 mu m), with a mobile phase of acetonitrile and 0.1 M acetic acid (70: 30, v/v) at a flow rate of 1 mL/min, and ultraviolet detection at 520 nm. Results: Linear behavior was observed over the investigated concentration range (2-500 ppm) for all analytes, with a correlation coefficient of >0.998. The proposed method was found to be specific and precise for the quantification of shikonin derivatives in Echium species. Conclusion: The highest content of shikonin derivatives was observed in E. italicum L compared with the other species studied herein, advocating the use of E. italicum L. roots as an alternate source for shikonin derivatives.
