Letter to the Editor
A method for predicting biomass yields in thermophilic and mesophilic nitrifying communities using 13C incorporation
Author(s): Archie Stevens*
For in-situ observations or several steady-state reactor runs, the current approaches for calculating biomass yield require sophisticated sensors. The yield of particular groups of organisms in mixed cultures is still difficult to estimate quickly and simply. Based on the incorporation of 13C during activity measurements, the maximum biomass yield (Ymax) can be quickly estimated using the method described in this study. It was used on mixed cultures made up of thermophilic (50°C) and mesophilic (15°C –28°C) strains of nitrite-oxidizing bacteria (NOB) and ammonia-oxidizing bacteria (AOB). This approach makes it impossible to distinguish between AOB and AOA coexisting in a society. This approach estimates the carbon fixation activity of the autotrophic bacteria rather than the actual nitrifier biomass yield because 13 C redirection via SMP to heterotrophs may result in.. Read More»
DOI:
10.37532/puljem.21.3 (1).1-2
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