Improved anaerobic indicator.

Improved anaerobic indicator.

Methylene blue is the most extensively used chemical indicator of anaerobiosis. Its use as such an indicator was reported early in the literature (Smith, Wilder Quarter Century Book, p. 187, 1893). Techniques such as hanging strips of methylene blue-impregnated gauze inside an anaerobic jar were described by van Reimsdijk (Ned. Tijdschr. Geneesk. 66:1423, 1922). Present-day microbiologists ofte...

Kinetics of inactivation of indicator pathogens during thermophilic anaerobic digestion.

Thermophilic anaerobic sludge digestion is a promising process to divert waste to beneficial use, but an important question is the required temperature and holding time to achieve a given degree of pathogen inactivation. In this study, the kinetics of inactivation of Ascaris suum and vaccine strain poliovirus type 1 (PVS-1), selected as indicators for helminth ova and enteric viruses respective...

Genetically encoded chloride indicator with improved sensitivity.

Chloride (Cl) is the most abundant physiological anion. Abnormalities in Cl regulation are instrumental in the development of several important diseases including motor disorders and epilepsy. Because of difficulties in the spectroscopic measurement of Cl in live tissues there is little knowledge available regarding the mechanisms of regulation of intracellular Cl concentration. Several years a...

Improved anaerobic digestion of energy crops and agricultural residues Improved anaerobic digestion of energy crops and agricultural residues

Outcomes of improved anaerobic techniques in clinical microbiology.

To our knowledge, the effects of the use of improved anaerobic techniques have not been documented. We compared data on patients during 2 different time periods-the first when anaerobic cultures were done by standard techniques (the control or "before" group) and the second when anaerobic cultures were done after an intensive program to improve anaerobic techniques (IAT). The program consisted ...