The application of dynamic calorimetry to natural gas fermentation

The use of calorimetry in biotechnology

“…As predicted by Eq. (27) much higher values of 16-26 kJ g-1 for Yo/x are obtained with more reduced substrates such as ethanol, methanol, and hexadecane. Conversely, growth on more oxidized substrates such as citrate (y~ = 3) and succinate (Ts = 3.5) should yield lower value (< 11 kJ g-l) of Yo/x" However, the values obtained stay roughly in the same range as those observed with hexoses.…”

“…The results of these experiments (Table 6) reflect the influence of 7s on the heat yield and may be compared with the influence predicted by Eq. (27).…”

“…As early as 1968, Cooney et al 24) pioneered the completely novel development of calorimeters at the bench scale. Three different types of bench scale calorimeters for use in biotechnology have been described in the literature to date [24][25][26][27][28][29][30][31]. They all consist of a laboratory bioreactor with a nominal volume comprising between 2 and 14 1, which can be operated much like a standard laboratory reactor, while featuring the necessary equipment for measuring the heat generated by the microbial culture in situ.…”