Induced flocculation of yeasts for use in the tower fermenter


It has been demonstrated that it is possible to induce flocculation in a yeast normally classified as non-flocculent. Further, it has been possible to accumulate and retain a very high cell density of this yeast in an upflow floc (tower) fermenter and to rapidly and efficiently convert glucose to ethanol. The method outlined for inducing flocculation appears to greatly broaden the range of organisms that might be considered for use in the tower fermenter, thus greatly enhancing this simple mode of continuous operation.


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