Differences in the rate and extent of degradation of ribonucleic acid (RNA) labeled by a 30-sec pulse in aerobically or anaerobically grown Rhodopseudomonas spheroides have been studied by using rifampin to block RNA synthesis. In anaerobic cultures, unstable RNA is degraded with a half-life of 1.25 to 2.0 min, and about 40% of the pulse-labeled RNA is stable. In aerobic cultures, the half-life...

In recent years, lots of the extracellular polymeric substances (EPS) related researches have focused on its role in the granulation and structural stability of aerobic sludge. Three-dimensional fluorescence spectrum (3D-EEM) and fourier transform infrared spectroscopy (FTIR) technologies were used to analyse the main components of sludge EPS during aerobic sludge granulation in this study. Res...

The in vitro activity of N-formimidoyl thienamycin (MK0787), a stable congener of thienamycin, was determined against 200 species of aerobic and 84 species of anaerobic bacteria. The compound was highly active against resistant gram-negative bacilli, penicillin-resistant Staphylococcus aureus, enterococci, and anaerobic bacteria. The new derivative of thienamycin was more active than the parent...

The objective was to compare the effectiveness of combining Lactobacillus buchneri 40788 with three lactic acid bacteria on the fermentation, aerobic stability and nutritive value of corn silage. Freshly chopped whole plant corn was untreated or treated with L. buchneri 40788 paired with Lactobacillus plantarum, Pediococcus acidilactici, or Pediococcus pentosaceus. L. buchneriwas added to achie...

This work compared the effect of ensiling technique and application of urea or a cellulase± hemicellulase enzyme mixture (FSO2) on the conservation of whole crop wheat. Awheat crop harvested at 600 g dry matter (DM) kgÿ1 was conserved with or without the application of urea (40 g kgÿ1 DM) and four levels of FSO2 (0, 1750, 3500 and 15 503 ml tÿ1 DM). Each forage (5 kg DM) was conserved in polyth...

Winter cereal silages can suffer from an inadequate fermentative path which lead to aerobic instability. We evaluate the pre-ensiled conditions influencing final quality and its stability. studied use of hetero/homofermentative inoculants on two early-harvest wheat samples (312 348 g/kg dry matter—DM levels) undergoing three ensiling delays. The profiles were evaluated during first ten d ensili...

Meat from pasture-fed cattle can have high contents of α-tocopherol and other anti-oxidants originating from naturally occurring compounds present in grasses. However, meat from pasture-fed cattle may have an increased demand for endogenous anti-oxidants because of its high content of polyunsaturated fatty acids, which in turn, may affect its colour and lipid stability. In the work described, w...