Sürdürülebilir Kalkınma Amaçları

• 1

Yazarlar

• Yolcu, Halil(2)
• Abdullah Yilmaz, Mustafa(1)
• Burnaz, Nesibe Arslan(1)
• Bursal, Ercan(1)
• Cetiz, Mehmet Veysi(1)
• Gunes, Adem(1)
• Gülçin, İlhami(1)
• Kaya, Erdal(1)
• Memon, Abdulrezzak(1)
• Saruhan, Emrah(1)
• Serin, Yunus(1)
• Tan, Mustafa(1)
• Tavlas, Ayten(1)
• Turumtay, Emine Akyuz(1)
• Turumtay, Halbay(1)
• Yapıcı, İsmail(1)
• Yilmaz, İsa(1)
• Öz, Mehmet(1)
• Özhatay, Fatma Neriman(1)
• İzol, Ebubekir(1)

• MakaleAçık Erişim2024Scopus SJRQ1/r/gumushane/12758
  Chemical Content by LC–MS/MS, Antiglaucoma, and Antioxidant Activity of Propolis Samples From Different Regions of Türkiye

  İzol, Ebubekir; Bursal, Ercan; Yapıcı, İsmail; Abdullah Yilmaz, Mustafa; Yilmaz, İsa; Gülçin, İlhami

  Propolis is a sticky substance produced by bees because of the reaction of beeswax, pollen, and bee enzymes. Particularly, their biological activity and chemical content attract attention. Thus, in this study, the total amount of phenolic and flavonoid substances, Fe3+-Fe2+, Cu2+ (cupric ions reducing activity [CUPRAC]), and Fe3+-TPTZ (ferric ions reducing antioxidant power [FRAP]) reducing, and DPPH• and ABTS•+ scavenging assays in vitro antioxidant properties of propolis samples obtained from four different provinces of Türkiye were determined. In addition, the chemical content of propolis samples was quantitatively determined by LC–MS/MS, and the antiglaucoma property was revealed by hCAII enzyme inhibition. Propolis samples from Ordu presented the highest amounts of total phenolic and flavonoid content (492.3 ± 5.8 and 96.1 ± 2.1, respectively) and also highest antioxidant activity (DPPH• and ABTS•+ IC50 [μg/mL]: 8.884 ± 0.84 and 4.589 ± 0.80, respectively; Fe+3, CUPRAC, and FRAP: 1.051 ± 0.012, 1.021 ± 0.008, and 0.957 ± 0.007 μg/mL, respectively). hCAII enzyme inhibition was highest in Muş propolis (IC50 [μg/mL]: 8.6) as determined. By LC–MS/MS, 53 different components were screened and 35 bioactive components were determined. According to the results, propolis was found to be a raw material because it contains high concentrations of acacetin, chrysin, caffeic acid, and quinic acid (123.824, 24.759, 47.779, and 16.32 mg analyte/g extract, respectively).

  • 
  AtıfScopus15·WoS15·OpenAlex17

  İncele
• MakaleYayıncıda açık erişim2023Scopus SJRQ3/r/gumushane/12654
  Chemical Content and Antimicrobial Activities of Essential Oils Obtained from Plant Parts of Juniperus excelsa M. Bieb.; [Kemijski sastav i antimikrobno djelovanje eteričnih ulja dobivenih iz dijelova biljke Juniperus excelsa M. Bieb.]

  Saruhan, Emrah; Öz, Mehmet

  This study was conducted to determine the chemical content, antibacterial, and antifungal properties of essential oil obtained from the parts of the plant called Juniperus excelsa M. Bieb. In this study, essential oils of cone, needle, and twig of J. excelsa plant, which is a naturally grown plant in Gümüşhane province, were obtained by hydrodistillation method in a Clevenger type device. Chemical composition of essential oils was determined thanks to the analysis conducted with GC-MS/FID device. Besides, antimicrobial activity tests of essential oils were decided in contrast to 23 different microorganisms with the disc diffusion method. As a result of the essential oil analysis of J. excelsa, the percentage of essential oil yield in cones, needles, and twigs was found as 5.88 %, 2.00 %, and 0.62 %, respectively. α-pinene was confirmed to be the most abundant main compound found in the essential oils of cones, needles, and twigs. As a result of the essential oil analysis of the cone, needle, and twig of J. excelsa species, it was revealed that monoterpenes were the most abundant chemical class in terms of percentage. In the antimicrobial activity test performed on the essential oils of J. excelsa plant parts, it was found that cones, needles, and twigs have a strong antimicrobial effect against Bacillus subtilis, Enterococcus faecalis, Escherichia coli, Escherichia coli O157:H7, Listeria monocytogenes, Salmonella enteritidis, Salmonella typhimurium, Staphylococcus aureus, Candida albicans, Penicillum expansum, Saccharomyces cerevisiae bacteria, yeast, and molds.

  AtıfScopus3·WoS2·OpenAlex1

  İncele
• MakaleAçık Erişim2023Scopus SJRQ2/r/gumushane/10653
  Phylogenetic analysis based on the ITS, matK and rbcL DNA barcodes and comparison of chemical contents of twelve Paeonia taxa in Turkiye

  Cetiz, Mehmet Veysi; Turumtay, Emine Akyuz; Burnaz, Nesibe Arslan; Özhatay, Fatma Neriman; Kaya, Erdal; Memon, Abdulrezzak; Turumtay, Halbay

  BackgroudTwelve taxa of herbaceous Paeonia species were recorded in Turkiye. All definitions were performed morphologically and/or anatomically and there is no study based on DNA barcode sequences. Three barcode regions were sequenced to determine the phylogenetic relationships of Turkish Paeonia taxa. The chemical comparison of roots was also investigated.Methods and resultsThe taxons were collected between May and June 2021 from nine cities. Leaf materials were used for DNA isolation and ITS, matK and rbcL regions were amplified and sequenced. There was no difference among taxa in terms of rbcL sequences. But the ITS and matK regions distinguished 12 taxa and structured them in two groups. ITS region distinguished P. peregrina, P. arietina, and P. tenuifolia from other taxa, while matK region distinguished P. arietina and P. witmanniana from other taxa. Both barcode sequences actually showed that the registration of P. mascula subsp. arasicola was actually 100% similar to P. arietina. ITS was the most polymorphic region (n = 54) followed by matK (n = 9). These sequences could successfully discriminate Paoenia species from each other and diploid P. tenuifolia. The methanolic root (100 gr) extracts were examined for total phenolic and flavonoid content, and antioxidant activities. Significant variation was found for polyphenolic content, and antioxidant properties (TPC from 204.23 to 2343.89 mg, TFC from 7.73 to 66.16 mg, and FRAP from 523.81 to 4338.62 mg). SC50 values of ABTS and DPPH were ranged from 115.08 to 1115.52 mu g/ml and 73.83 to 963.59 mu g/ml, respectively.ConclusionIt was concluded that 11 of 12 taxa had differences in terms of ITS and matK sequences and these region must be used for the correct identification of Turkish Paeonia.

  AtıfScopus7·WoS7·OpenAlex10

  İncele
• MakaleYalnız künye2009/r/gumushane/15809
  Chemical contents of red clover genotypes on crop improvement systems as livestock feed

  Yolcu, Halil; Tavlas, Ayten; Tan, Mustafa; Gunes, Adem

  A field experiment was conducted in 2000-2001 at the Research Station of East Anatolia Agricultural Research Institute in Pasinler of Erzurum province in Turkey. In this study, 25 red clovers (Trifolium pratense L.) genotypes were evaluated in terms of chemical contents for animal feeding in the 2 years results. The red clover genotypes were sown in the spring of 2000. The experiment was designed a randomized complete block with replicated 4 times. The genotypes were harvested in 50% flowering once in 2000 and 3 times in 2001. There were significant differences in N (p<0.05), Mg (p<0.05), Zn (p<0.05), Fe (p<0.05), Mn (p<0.01) and Cu (p<0.01) contents but no in Na content among the red clover genotypes. According to 2 years results, especially L-818 line and Xiashao cultivar in N; L-1881 and L-812 line in Mg; Redwent cultivar, L-77, L-l 922 lines and Lucrun cultivars in Zn; L-77 line, Redwent cultivar, L-812, L-1922 lines and Lucrun cultivar in Fe; L-79 line, Redwent cultivar and L-77 line in Mn; L-79 line, Redwent cultivar and L-77 line in Cu had higher chemical contents than the others for animal feeding. The genotypes rich in terms of chemical content can be successfully used to meet the requirement the forage quality of animal and to gain new quality red clover genotypes for animal nutrition.

  AtıfScopus5·WoS4

  İncele
• MakaleYalnız künye2009Scopus SJRQ4/r/gumushane/15804
  Effects of nitrogen and phosphorus fertilization and seeding patterns on chemical composition of Lucerne and smooth brome grass intercropping system

  Yolcu, Halil; Serin, Yunus

  Intercropping has been used widely in forage plant production all around the world. In intercropping systems, forage plants need different requirements are grown together. Requirement of fertilization and seeding pattern of intercropping differ from mono cropping. The research goals were to evaluate the effects of various seeding patterns and fertilization on the crude protein and chemical content of lucerne-smooth brome grass mixture under field conditions in 2002-2003. Lucerne and smooth bromegrass mixtures were established with different seeding patterns (mixed, alternative and cross-seeding), N fertilizer rates (0, 60 and 120 kg N ha-1) and P fertilizer rates (0, 40, 80 and 120 P2O5 ha-1). The results of this study indicated that different seeding patterns, N and P fertilization affected chemical contents of alfalfa and smooth brome grass mixture in the intercropping system. Depending on different seeding patterns, N, Ca, K and Mg content varied significantly, but no P content in the intercropping system. Nitrogen application increased N content and P application likewise increased P content. While P application increased N content, N application had no effect on the P content of the intercropping. Calcium and K did not vary significantly depending on N and P fertilization; yet, a relationship between P application and Mg content was determined.

  AtıfScopus7·WoS7

  İncele