نتایج جستجو برای: حالت vbnc

تعداد نتایج: 38412  

Journal: :Journal of bacteriology 2006
John M Pfeffer Hendrik Strating Joel T Weadge Anthony J Clarke

The O acetylation of peptidoglycan occurs specifically at the C-6 hydroxyl group of muramoyl residues. Using a combination of high-performance liquid chromatography-based organic acid analysis and carbohydrate analysis by high-pH anion-exchange chromatography, we determined that strains of Entercoccus durans, E. faecalis, E. faecium, and E. hirae produce O-acetylated peptidoglycan. The levels o...

Journal: :Applied and environmental microbiology 2007
Covadonga Quirós Mónica Herrero Luis A García Mario Díaz

Flow cytometry (FC) has been introduced to characterize and to assess the physiological states of microorganisms in conjunction with the classical plate-counting method. To show the applicability of the technique, in particular for the development of kinetic models, pure culture fermentation experiments were followed over time, using both prokaryotic (Lactobacillus hilgardii) and eukaryotic (Sa...

2011
Max Teplitski Jorge H. Leitão Shlomo Sela

This special issue of the International Journal of Microbiology focuses on global health. More specifically, our aim is to establish whether there is a role for microbial ecology in global health. " Global health " is often defined as the " health of populations " a problem that transcends geographic boundaries and exists at the intersection of demography, economics, epidemiology, political eco...

ژورنال: :علوم و صنایع غذایی ایران 2016
مهدی ذوالفقاری مسعود رضائی مهدی فروزنده مقدم اشرف محبتی مبارز هدایت حسینی

چکیده باکتریlisteria monocytogenes یکی از خطرناک ترین باکتری ها در محصولات غذایی است که موجب 20 تا %30 مرگ و میر در مبتلایان می گردد. از جمله غذاهایی که عامل لیستریوزیز است، غذاهای آماده مصرف (rte) هستند. بنابراین روش های مناسب حرارت دهی برای حذف این پاتوژن در فرآیند تولیدمحصول نیاز است. l. monocytogenes قدرت ورود به حالت «زنده اما غیر قابل کشت» (vbnc) در شرایط نامساعد رشد را دارد. بنابراین ا...

2014
Rasoul Shafiei Raziyeh Zarmehrkhorshid Azeddine Bentaib Manoochehr Babanezhad Pierre Leprince Frank Delvigne Philippe Thonart

BACKGROUND Loss of viability is one of the most important problems during starter culture production. Previous research has mostly focused on the production process of bacterial starters, but there are few studies about cellular protein deterioration causing cell defectiveness during storage. In the present study, we investigated the influence of storage temperature (-21, 4, 35°C) on the cellul...

Journal: :Proceedings of the West Virginia Academy of Science 2023

Many species of bacteria, under conditions stress or nutrient limitation, enter a state dormancy referred to as viable but non-culturable (VBNC). VBNC bacteria persist in the environment, are difficult detect and identify by many standard laboratory methods can be altered their susceptibility antibiotics. Entry into is often accompanied morphological changes; however, mechanisms underlying this...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید