Sürdürülebilir Kalkınma Amaçları

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• MakaleAçık Erişim2026Scopus SJRQ2/r/bayburt/12720
  Bioactive profile and mineral composition of fruit extracts from four wild hawthorn (Crataegus spp.) species

  Çakır, Özlem; Çınar Topçu, Kübra; Sefali, Abdurrahman; Bayyiğit, İshak; İlhan, Gülçe; Singh, Jyoti

  This study compared the antioxidant capacity, total phenolic content (TPC), phenolic composition, lipid oxidation level, and mineral profiles of extracts obtained from four wild hawthorn species (Crataegus tanacetifolia, C. orientalis subsp. orientalis, C. orientalis subsp. szovitsii, and C. monogyna) collected from northeastern Türkiye. Significant interspecific variations were observed in DPPH, FRAP, and CUPRAC assays. While C. monogyna had the highest reducing capacity and TPC, C. orientalis subsp. szovitsii had the highest DPPH activity. Ultra-high performance liquid chromatography coupled to tandem mass spectrometry analysis showed that catechin, epicatechin, chlorogenic acid, and quinic acid were the major phenolics, and were particularly abundant in C. monogyna. Despite having a high phenolic content, C. monogyna had the highest malondialdehyde level, indicating that phenolics alone were insufficient to fully inhibit lipid oxidation. Inductively coupled plasma-mass spectrometry mineral analysis detected high levels of K, Mg, and P in all species. Principal component analysis effectively distinguished the species based on their antioxidant, phenolic, and mineral profiles. Overall, hawthorn fruits were confirmed as valuable sources of natural antioxidants and essential minerals.

  AtıfScopus1·WoS1

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• MakaleAçık Erişim2024Scopus SJRQ2/r/bayburt/12901
  Antioxidant properties and aldose reductase inhibitory potency of Viscum album L. extracts: experimental and computational insights

  Akyüz, Bilal; Şengül, Bülent

  This study systematically investigates the antioxidant capacity and inhibitory impact of Viscum album L. plant extracts on the aldose reductase (AR) enzyme through a combined approach of in vitro and in silico methods. Various sections derived from distinct plant parts were examined, revealing potent inhibitory potential. Notably, the methanol extract sourced from the plant’s stem displayed remarkable efficacy with an IC50 value of 0.156 µM. Total phenolic content and antioxidant capacity analyses were conducted, highlighting variations across plant parts and solvent types. Qualitative and quantitative phenolic compound content in the extracts was elucidated by LC-MS/MS analysis, revealing higher levels of quinic acid, fumaric acid, and chlorogenic acid. Molecular docking studies further substantiated the inhibitory roles of key compounds like chlorogenic acid and fumaric acid, elucidating their interactions with specific amino acid residues within the AR enzyme’s active site and shedding light on the underlying mechanisms. Collectively, this study underscores Viscum album L. extracts as promising candidates for aldose reductase modulation. By merging experimental and computational techniques, the study presents a holistic understanding of natural compound interactions, potentially influencing drug development and herbal therapeutics.

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  AtıfScopus4·WoS4·OpenAlex4

  İncele
• MakaleYalnız künye2011Scopus SJRQ2/r/bayburt/15591
  Determination of protein and gluten quality-related parameters of wheat l our using near-infrared rel ectance spectroscopy (NIRS)

  Ertugay, Mustafa Fatih; Başlar, Mehmet

  Buğday ve un işleme teknolojisinde kalite/kontrol için yapılan kimyasal analizler oldukça zaman alıcıdır. Klasikmetotlara alternatif bir teknoloji olan yakın kızılötesi (NIR) spektroskopisi sonuçların birkaç saniyede elde edilmesinisağlar. Bu çalışmada, Türkiye’nin farklı bölgelerinden bir araya getirilen 120 çeşit buğday öğütüldü ve unlarda protein,yaş gluten, kuru gluten ve Zeleny sedimantasyon değerlerinin kalibrasyon modellerini geliştirmek için NIR spektrosko- pisi kullanıldı. Bunun için, monokromatör NIRSystem 6500 ile taranarak unların 1100 nm ile 2500 nm aralığındakispektraları elde edildi. Unların log 1/R’deki spektral verisi ile log 1/R’nin 1. ve 2. türevlerine Çoklu Lineer Regresyon(MLR) ve Kısmi En az Kareler (PLS) uygulandı. Protein, yaş gluten, kuru gluten ve Zeleny sedimantasyon parametreleriiçin korelasyonları sırasıyla r = 0.985, 0.976, 0.953 ve 0.924 olan sonuçlar geliştirildi.

  AtıfTR Dizin2

  İncele
• MakaleAçık Erişim2011Scopus SJRQ2/r/bayburt/14012
  Determination of protein and gluten quality-related parameters of wheat flour using near-infrared reflectance spectroscopy (NIRS); [Yakın Kızılötesi Spektroskopisi (NIRS) kullanarak buǧday unlarının protein ve glutenle ilgili kalite parametrelerinin belirlenmesi]

  Başlar, Mehmet; Ertugay, Mustafa Fatih

  Wet chemistry analyses done for quality control purposes in wheat and flour processing are time-consuming. Near-infrared spectroscopy (NIRS) as an alternative technology to conventional methods allows us to obtain results in a few seconds. In this study, NIRS was used in the development of calibration models for protein, wet and dry gluten contents and Zeleny sedimentation of flours from the grinding of 120 varieties of bread wheat collected from different regions of Turkey. Therefore, spectra in the range of 1100 to 2500 nm of the flours were acquired by scanning with the NIRSystems 6500 monochromator. Multiple linear regression (MLR) and partial least squares (PLS) regression were applied to the spectral data in log 1/R, and first derivative and second derivative of log 1/R formats. Reasonable results were obtained for protein, wet and dry gluten contents, and Zeleny sedimentation with r = 0.985, 0.976, 0.953, and 0.924, respectively.

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  AtıfScopus41·WoS38·OpenAlex52

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