Determination of various flocculants' performance in flocculation of lignite waste pulps

In this study, the performance of the different flocculants, in the flocculation of the pulps prepared using lignite samples, has been investigated taking into consideration floc settling rate, supernatant turbidity and filtration. In the experiments, their anionic, cationic, non-ionic flocculants and mixtures have been used. For the high settling rate and low turbidity the best results have; been obtained with non-ionic flocculants. Regarding the filtration anionic flocculant has given the best result

Chemical constituents and antimicrobial activity of the essential oil from vicia dadianorum extracted by hydro and microwave distillations

The aim of this research was to investigate the influence of extraction methods on yield and chemical composition of the essential oil of Vicia dadianorum Somm. & Lev. The volatiles of V. dadianorum have been isolated by hydro and microwave distillations (HD and MD). The compositions of the essential oils were characterized by GC-FID and GC-MS. A total of seventy-six and fifty-six compounds were identified, constituting over 90.9%, and 80.1% of oil composition of V. dadianorum, respectively. Sesquiterpene hydrocarbons were shown to be the main group of volatiles (HD: 26.2% and MD: 15.9%). The major terpene constituent of the essential oils of V. dadianorum was ?-elemene (HD, 13.7% and MD, 8.4%). Comparative study showed that the amount of total volatiles (90.9%) and the major constituent (26.2%) were found to be better in HD of V. dadianorum. The antimicrobial activity of the isolated essential oils of the plant was also investigated, and it showed moderate antimicrobial and antifungal activities against Staphylococcus aureus, Enterococcus faecalis, Bacillus cereus, Mycobacterium smegmatis and Candida albicans

New Chalcone Derivatives with Schiff Base-Thiophene: Synthesis, Biological Activity, and Molecular Docking Studies

WOS: 000469246900025New thiophene chalcones 3, 6 and thiophene Schiff base-chalcone derivatives 4a-4d, 7a-7d are synthesized. Structures of the compounds are confirmed by H-1 and C-13 NMR, and IR spectra. According to antimicrobial and antileishmanial tests, the compounds 4c-7c demonstrate efficient antileishmanial and antimicrobial activities. Molecular docking studies based on Maestro Molecular Modeling indicate 4c and 7c to be the most potent compounds that are characterized by the least docking score,-10.674 and-10.989 kcal/mol, respectively.Karadeniz Technical UniversityKaradeniz Teknik University [KTU BAP 7222]This study was supported by grants from Karadeniz Technical University (KTU BAP 7222)

Granulomatous mastitis: Radiological findings

Purpose: To evaluate the radiological, ultrasonographic, and magnetic resonance imaging (MRI) findings of idiopathic granulomatous mastitis

Antimicrobial activity and volatile constituents of omphalodes cappadocica (Willd.) DC.

The composition of the essential oil isolated by hydrodistillation from Omphalodes cappadocica (Willd.) DC. (Boraginaceae) collected from 'Of', a town in Trabzon, was determined by GC-FID and GC-MS. Sixty components were identified corresponding 90.8 % of the oil. The major components were benzaldehyde (18.1 %), nonanal (10.0 %), 2E-nonenal (8.1 %), tricosane (4.4 %), octanal (3.9 %), 2- pentyl furan (3.8 %), 2E,6Z-nonadienal (3.7 %) and 2E,4E-decadienal (2.7 %). In addition, antimicrobial activity of the essential oil of O. cappadocica was investigated against Escherichia coli, Yersinia pseudotuberculosis, Pseudomonas aeruginosa, Staphylococcus aureus, Enterococcus faecalis, Listeria monocytogenes, Bacillus cereus, Mycobacterium smegmatis and Candida albicans and Saccharomyces cerevisiae at maximum essential oil concentration in hexane of 1000 ?g/mL. They showed only antibacterial activity against bacteria E. coli, S. aureus, B. cereus, M. smegmatis and the fungicidal activity against C. albicans and S. cerevisiae

Chemical composition and antimicrobial activity of the volatile of Gladiolus atroviolaceus boiss

In the present study, essential oil extracted by hydrodistillation from Gladiolus atroviolaceus Boiss. (Iridaceae) was analyzed by gas chromatography (GC) and GC-mass spectrometry (MS). A total of 52 compounds were identified, constituting over 93.8 % of the oil composition of G. atroviolaceus. Hexadecanoic acid (44.4 %) and heneicosane (6.6 %) were the major compounds in the volatile of G. atroviolaceus. Sesquiterpene hydrocarbons were shown to be the main groups of terpenoids in the oils (2.6 %). The major terpene constituents of the essential oil of G. atroviolaceus were limonene, g-muurolene and linalool. The antimicrobial activity of the isolated essential oil of the plant was also investigated and it showed moderate antimicrobial and antifungal activities against Staphylococcus aureus, Bacillus cereus, Mycobacterium smegmatis and Candida albicans