longum were rehydrated by sub culturing in MRS and reinforced clostridial medium respectively under strict anaerobic condition
. Anaerobic jars were used to apply anaerobic conditions
Anaerobic biohydrogen fermentation was performed at various initial pH (5, 6, 7, 8 and 9) and various initial substrate concentrations (5, 10, 15 and 20 g/L) in 30mL serum bottles at mesophilic (37degC), anaerobic condition
. The best hydrogen yield was obtained at initial pH of 7 and initial soluble sugar concentration of 5 g/L respectively with acetate, butyrate and ethanol as major metabolites.
Therefore, with the increasing of depth, an anaerobic condition
gradually formed in the deep litter system.
The anaerobic condition
was realized by the ventilation of nitrogen gas into the reactor.
After 24 hours, mixed bacterial colonies grew, from which an isolation on blood agar was performed to grow in anaerobic condition
. The anaerobic growth gave the sole colonies the same look as the ones isolated from patient blood culture.
Rate constant of semiquinone anion radical formation under anaerobic condition
, and rate constant of autosensitized photooxidation reaction under aerobic condition were measured for Elsinochrome A (EA) by electron paramagnetic resonance and UV-visible spectra, respectively.
With the hydrolysis of sugarcane under anaerobic condition
Moreover, the significantly positive correlations between COD consumption and P release under anaerobic condition
with 0.9972 of [R.sup.2], and between nitrate removal and P uptake in the anoxic mode ([R.sup.2] of 0.9874) also demonstrated that DPAO was dominant in the tanks included the BNR-IC system.
This was considered as an anaerobic condition
. For aerobic treatments, another set of 24 flasks were prepared as described above, covered with parafilm, and placed into a shaker and shaken at a speed of 60 rpm.
azurea breakdown incubated with Paranapanema River water showed that the carbon mineralized in the aerobic processes were 2.17-fold faster than the anaerobic condition
(Stripari and Henry, 2002).
without [H.sub.2] ([Anaero.sup.H2-]).
Bacteriological culture was done at 37[degrees]C both aerobically and under partial anaerobic condition
using Fortner's method (see Fig.2).