Dear Stovers, yeast is a fungus. Under natural conditions, yeasts lead a normal life as air breathing organisms. Under anaerobic conditions, yeast ferments sugar into alcohol. Therefore we have this preconceived notion that yeast can eat only sugar. It is obvious that under aerobic conditions yeast behaves like any other fungus and can eat lignin, cellulose, protein and fat. Yours A.D.Karve
On Mon, Dec 17, 2012 at 8:38 AM, Richard Stanley <[email protected]>wrote: > Dear Kevin, > > In Guatemala Esvin Martin tells me that yeast is not only used for > bread, or wine. It is also used for acceleration of decomposition in the > production of organic fertilizers. Where Esvin has done tests for > decomposition of materials for what is being dubbed in Guatemala, as > Ecolena, he has discovered that yeast generates a higher termperature > which in turn accelerates decomposition, softens the materials and allows > them to be more easily compacted. > > How this relates to the interaction of /dependence upon/ the yeast with > sugars, is apparently not so much the issue as the fact that ti simply > generates heat. How and through what reaction we have yet to discover but > there is a traditon for using it over the past 5 years or so, in the > preparation of organic fertilisers, according to Esvin. > > I saw it in use and saw the blend and observed that indeed decomposition > was accelerated with the result of a more flexible fiber matrix and hence a > more compact briquette. The time observed was 8 days with use of the yeast > and 18 + days for non yeast:, same blend, same black plasic covering to > same form, same climate/ sun/ temperature /humidity etc., conditions. > > Admittedly there is a lot more to be understood here eh ? Will keep > digging but in the mean time, its gaining some degree of acceptance > in-practice. > > Look fwd to any technical explanations from your and other observer's > side. This really is a good research project for real science, to a very > useful end. We could benefit from it everywhere they are making briquettes > of this type for real, non donor assisted, sustainable livlihoods in the > real marketplace . ( Production is going on now in about 65 countries and > counting at this point ). > > Thanks and anon, > > Richard Stanley > de EEUU > > Esvin Martin > de > Guatemala > ================================= > >
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