FERMENTATION ORGANISMS

The effect of oxygen on fermentation of sucrose by rumen micro-organisms in vitro.

I. The effect of oxygen on the fermentation of sucrose by mixed rumen micro-organisms in vitro was studied by adding oxygen to the gas phase in three ways: at the beginning of incubation, at two hourly intervals during incubation and continuously. 2. The additions of oxygen had no measurable effect on the utilization of sucrose or on the production of carbon dioxide, steam-volatile acids and pa...

The fermentation of cellulose in vitro by organisms from the rumen of sheep.

The suggestion that micro-organisms are responsible for the decomposition of cellulose in the alimentary canal (Wildt, 1874; Zuntz, 1879; Duclaux, 1882) arose from the proof (Henneberg & Stohmann, 1860-4) that it is, in fact, cellulose which disappears during the pa#sage of crude fibre through the animal (Haubner, 1855). Tappeiner (1882, 1883, 1884, 1888), who was the first to investigate the f...

A Variable-tilt Fermentation Rack for Screening Organisms in Microfuge Tubes

We designed a variable-tilt microfuge fermentation rack to screen liquid cultures of wild and mutant yeasts for ethanol production. The rack design allows for the evaluation of up to 40 cultures in the space normally required for three 125 mL Erlenmeyer flasks. Microfuge tubes containing 1.0 mL of inoculated medium were placed in the rack and incubated with shaking. This technique gave reproduc...

Sources and management of micro-organisms for the development of a fermentation industry.

Clavamycins, new clavam antibiotics from two variants of Streptomyces hygroscopicus. I. Taxonomy of the producing organisms, fermentation, and biological activities.

In a selective screening for antifungal metabolites, six new clavam antibiotics, clavamycins A, B, C, D, E and F, have been detected from two variants of Streptomyces hygroscopicus NRRL 15846 and NRRL 15879.