Browsing by Author "Karaismailoglu, Mehmet Cengiz"

Now showing 1 - 5 of 5

Bioactive Nano-Scale Material Approved With Hepg2 and Mcf-7 Cancer Cell Lines, Antimicrobial Properties and Characterization Parameters
(Elsevier, 2024) Ceylan, Zafer; Inanli, Ayse Gurel; Meral, Raciye; Dalkilic, Semih; Dalkilic, Lutfiye Kadioglu; Karaismailoglu, Mehmet Cengiz; Kose, Nusret
The carvacrol nanoemulsion (CNe) was successfully fabricated in the present study. In this regard, the mean particle size (PS) value of the CNe was determined as 321 nm. The zeta potential value of CNe was determined as -54.27 mV while the PDI value of CNe was found as 0.266. With FTIR analysis, the molecular characterization was applied, for example, the peak at 3365 cm(-1) was observed for hydrogen-bonded stretch vibrations of O-H or N-H groups in CNe. The cytotoxic effects of CNe via MCF-7 (88 and 33 % decline in cell viability) and HepG2 (86 and 48 %: decline) were determined. The carvacrol nanoemulsion indicated a high antibacterial effect with 3-9 mu L concentration on the growth of B. cereus with an inhibition zone diameter of 14.3-28.3 mm(-1). The CNe with 0.5-1.5 mL showed bactericidal properties on V. parahaemolyticus with an inhibition zone diameter of 12.6-16.3 mm (p < 0.05). With the novel nano-approach, the carvacrol nanoemulsion with anticancer and antimicrobial properties could play a guiding role for further applications with further studies in industry treatments such as food and hygienic procedures.
Morphological, Anatomical, Palynological and Ecological Data on the Local Endemic Dianthus Vanensis (Caryophyllaceae) From Turkey
(Magnolia Press, 2019) Karaismailoglu, Mehmet Cengiz; Erez, Mehmet Emre; Pinar, Suleyman Mesut; Fidan, Mehmet; Eroglu, Huseyin
A first detailed taxonomical, palynological, and ecological study of the Turkish endemic Dianthus vanensis is shown based on field data collected at locus classicus. A revised morphological description, including data of seed and pollen by using Scanning Electron Microscope, is provided. Seed surface displays elongated cells, which are lobate with 14-28 teeth, I, S shaped or irregular, and papillate. Pollen grains are radially symmetric, apolar, pantoporate and spheroidal shape (size: 40.38 +/- 0.64 x 37.98 +/- 0.36 mu m), with scabrate ornamentation, and 9-12 pores elliptical (different margin), and operculate (size: 6.17 +/- 0.23 x 4.17 +/- 0.39 mu m). The anatomy of root, stem and leaf are also investigated. On the outer surface of the root is placed a multi-layered periderm. The cortex consists of multi-layered parenchymatic cells under periderm, and its thickness is 176.49 +/- 7.85 mu m. In the stem cross-sections, it is noticed one epidermis layer, comprising of flat cells in outermost. Its thickness ranged between 28.13 and 35.29 mu m. The type of vascular bundle is hadrocentric. In the abaxial and adaxial surfaces of the leaf are located 1-layer epidermis cells, comprising of the flat or rectangular cells. The leaf is equifacial. Leaves have collateral vascular type. IUCN category of the taxon is assessed CR (Critical Endangered) based on criterion B2a,b(iii).
The Revealing of the Cyto-Genotoxic Properties (Allium and Mtt) and the Effect of Chicken Meat Quality of Characterized Zein-Eugenol Nanofibers
(Elsevier Sci Ltd, 2025) Ceylan, Zafer; Uzun, Orhan; Karaismailoglu, Mehmet Cengiz; Meral, Raciye; Yildiz, Huseyin Bekir
Electrospun zein-based eugenol nanofibers (ZEnF) with diameters (148.19-631.52 nm) were fabricated. Thermal degradation was found as <15 % until 300 degrees C while the nanofiber diffraction pattern presented three main peaks among the 5(o) and 45(o) positions. ZEnF was not only evaluated as non-toxic to cells but also possessed anticancer characteristics revealing with the MCF-7 cell line at 800 mu g/mL (reduction: 18.08 %) and 1600 mu g/mL (reduction: 41.64 %). Allium tests revealed that ZEnF did not have any adverse impact on the health status (chromosomes-DNA) of exposed organisms. Following the nanofiber coating for chicken meat parts (thigh and breast), it was observed up to 1.25 log CFU/g limitation in total viable bacteria counts (p < 0.05). The sensory score (difference: 3.64 in 10 points scoring on the 6th day of the cold storage) and odor score of chicken meat samples were found to be as higher than control samples (p < 0.05).
Seed Micromorphology and Anatomy of 36 Muscari (Asparagaceae) Taxa From Turkey With Notes on Their Systematic Importance
(Univ Zagreb, Fac Science, Div Biology, 2021) Eroglu, Huseyin; Karaismailoglu, Mehmet Cengiz; Pinar, Suleyman Mesut; Fidan, Mehmet
- This study presents the first in-depth evaluation of the morphological and anatomical characters, as well as their taxonomic importance, of the seeds of 36 taxa in subgenera Muscari, Leopoldia, Pseudomuscari and Botryanthus of the genus Muscari in Turkey, where 24 of the taxa are endemic. The results indicate that the taxa generally differ from each other in terms of seed shape and dimension. Seed dimensions vary between 1.66 mm and 3.21 mm in length, and between 1.12 mm and 2.63 mm in width. The seed surface ornamentation is grouped into nine forms: ru- minate, reticulate, reticulate-areolate, reticulate-foveate, alveolate, scalariform, rugose, verrucate and areolate. The most common type is ruminate, while areolate, reticulate-foveate and scalariform ornamentation forms were found to be taxon-specific. Testa structures of the taxa examined consist in general of two different layers: the epidermis and the subepidermis in scleranchymatous or parenchymatous structures. The subepidermis may be absent in some of taxa. The structure and thickness of the epidermis and the subepidermis are very important characteristics that dis- close interspecific relations among the examined taxa. We also provide a key for the identification of the studied taxa based on seed features.
Seed Morphological and Anatomical Structures as Taxonomy Tool for Turkish Hyacinthella Schur (Asparagaceae) Taxa
(Magnolia Press, 2022) Eroglu, Huseyin; Karaismailoglu, Mehmet Cengiz; Fidan, Mehmet; Pinar, Suleyman Mesut
This paper offers the first taxonomic assessment of the morphological and anatomical characters of the seeds of 11 Hyacinthella taxa from Turkey, ten of them are endemic, with the cluster analysis and principal component analysis. Macro-morphologically, all studied species can be differentiated from each other by the seed characters such as shape, size and surface ornamentation. The studied seeds are separated into 5 shapes; triangularis, circularis, ellipticus, ellipticus-late and ovatus. Seed size ranges from 1.51 mm to 3.06 mm in length and from 1.06 mm to 2.04 mm in width. Micro -morphologically, seed surface ornamentation is grouped into 7 types: rugose, reticulate-pusticulate, verrucate, tuberculate, ruminate, reticulate-foveate and alveolate. Anatomically, testa structures of the studied seeds are usually consisted of single layer, the epidermis, formed in the sclerenchymatous tissue. The epidermis layer demonstrates significant differences in cell form, comprising of crushed, flat or polygonal cells, in 1-7 layers, and has surged or straight wall form. The thickness of testa layers varies between 15.77 mu m (in H. micrantha) and 49.76 mu m (in H. campanulata). In the systematics of the genus Hyacinthella, the seed morphological and anatomical characters are very important characteristics that reveal inter-specific relationships among the studied species. Also, a dichotomous key is provided for the identification of the examined species based on seed characters.