In biomolecule mass spectrometry, peptides are usually ionized by an acidic solvent or matrix. It is generally accepted that the mobilization of attached protons weakens backbone bonds and facilitates peptide fragmentation. While this is often advantageous, it can lead to a multiplicity of fragment ions (both N-terminal an, bn and C-terminal yn ions). Formation of too many types of fragment ion...

In this study, it was aimed to provide biocontrol of Salmonella spp. and Listeria contamination in tahini. For purpose, 10 different tahini samples were obtained from Kahramanmaraş market enumeration spp., total mesophilic aerobic bacteria (TMAB), yeast-mold, Staphylococcus coliform made. Antagonistic effects Lactiplantibacillus plantarum CompaniLactobacillus alimentarius strains against typhim...

Çal??mada, ?stanbul’da sat??a sunulan midye dolmalar?n mikrobiyolojik kalitesinin ortaya konmas? amaçlanm??t?r. Bu amaçla, aç?kta 200 dolma numunesinin kalitesi incelenmi?tir. Örneklerde toplam mezofilik aerob bakteri (TMAB), koliform bakteri, Escherichia coli, Staphyloccoccus aureus, Vibrio spp., Salmonella spp. ve Listeria monocytogenes ara?t?r?lm??t?r. Midye dolmalarda TMAB say?s? en az 2 x ...

Bu çalışmada; Satureja hortensis L. bitki ekstraktının kuluçkalık tavuk yumurtalarının dezenfeksiyon işleminde kullanılabilirliği ve kuluçka sonuçlarına etkisi araştırılmıştır. Çalışmada yumurtaların klorid grubu dezenfektan (Kontrol+, S1), etanol (Kontrol-, S2), + % 2 S. ekstraktı (S3) %4 (S4) kullanılmıştır. Yumurta kabuklarından toplam mezofilik aerobik bakteri (TMAB) yükü, inkübasyonun başl...

In this study, eight perfluorinated alkyl substances (PFASs) and five thyroid hormones (TSH, FT4, FT3, TGAb, and TMAb) were determined in 202 human serum samples of the general population of Guangdong, Guangxi and Hainan provinces in southern China. Σ8PFASs concentrations ranged from 0.85 to 24.3 ng/mL with a mean value of 4.66 ng/mL. The PFASs composition profiles of human serum samples nearly...

Last month, Part 1 of this discussion brief ly described the regulatory landscape for developing biosimilar therapeutic monoclonal antibodies (TMAbs). We identified certain specific structural components of TMAb drug substances that warrant particular attention because alterations to them are likely to affect therapeutic safety and effectiveness. Now we conclude by considering whether studies o...

Çilek antosiyaninler, karotenoidler, vitaminler, flavonoidler, aroma uçucuları ve fenolik madde içeriği yüksek doğal bir antioksidan diğer biyoaktif fitokimyasalları içermektedir. çabuk bozulan meyvedir depolama süresince kaybı, insan sağlığına olan faydalarını azaltmaktadır. Günümüzde çilek, meyve suyu olarak da çokça tercih edilmekte ancak raf ömrünün kısa olması önemli sorun teşkil etmektedi...

The different combinations of bioactive compounds, probiotics (Streptococcus thermophilus ATCC 19258 and Lactobacillus bulgaricus BAA-2844), prebiotic (fructooligosaccharides, FOS), fenugreek, L-arginine, were added to the pâtė meat. Some meats contaminated with Salmonella Typhimurium 14028 Listeria monocytogenes 7644. Fermentation was applied only batches containing ‘probiotic’ or ‘probiotic p...

Hot-smoked rainbow trout (Oncorhynchus mykiss) fillets with vacuum packaging are an important export source and the manufacturers recommend a shelf life of 21 d at 4 °C. This time is very short in terms packaged foods. In this study, nisin lysozyme (0.5 1% w/v, respectively) were used order to prolong hot-smoked by adding them brine (8–10 ˚C, 10 h). Five treatment groups formed, including contr...