Employed in the various Manufactures Based on Fermentation.
Year: 1885

page_text: Employed in the various Manufactures Based on Fermentation.
COMPLETE
SPECIFICATION
I, CHARLES DENTON ABEL of No. 28 Southampton Buildings, Chancery Lane, in
the county of Middlesex, Consulting Engineer and Patent Agent do hereby
declare the nature of my invention for "PROCESS FOR PREVENTING SUBSIDIARY
FERMENTATIONS IN SUBSTANCES EMPLOYED IN THE VARIOUS MANUFACTURES BASED
ON FERMENTATION," and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:-
With the existing fermentation processes of the various manufactures based on
fermentation, it is not possible to exclude low detrimental organisms from the
materials to be fermented; by this means, subsidiary fermentations are produced
that act injuriously upon the fermentation process, and upon the quality of the
product.
The main object of the present invention is to provide means for the removal in
an easy manner of micro-organisms from liquids by filtration.
Already, by careful filtration of the acid ferment of distillations, most of the
bacteria are removed from the liquid; a better result is however obtained if a
voluminous body be added to the mash before filtration; the filtered material is
then obtained thoroughly clear and no bacteria can be discovered by means of the
microscope.
Voluminous bodies of this kind are :-
- :
1, Oxyhydrates, freshly precipitated from their salts, for example hydrate of
alumina, hydrate of oxide of iron, etc.
2, Insoluble amorphous combinations as phosphate of iron, phosphate of
alumina, etc, carbonate of magnesia etc.
.3, Silicic acid precipitated from its combinations.
4, Albumen, starch paste etc.
The process for distilleries and yeast factories is as follows:

page_text: 2nd, with the addition before filtration of a voluminous body of the following
groups:
Group a-Oxyhydrates, freshly precipitated from solutions of their salts, for
instance hydrate of alumina, hydrate of oxide of iron, hydrate of magnesium
oxide etc.
Group b-Insoluble amorphous salts, as Phosphate of Iron, of Barium, Strontium,
of Calcium, of Aluminium, Silicate of Barium of Strontium of Calcium, of
Magnesium of aluminium, carbonate of magnesia, of Lime, of Baryta of Strontia etc.
Group c: Silicic acid, precipitated from its combinations.
Group d: Organic bodies, such as starch paste, albumen, bodies precipitated from
the black lye of soda cellulose manufactories by means of SO₂.
3rd By producing the voluminous bodies referred to under 2 directly in the malt
extract instead of adding them to the same.
4th The method of coating the filtering surfaces with the voluminous bodies or of
enclosing them between filtering surfaces and forcing the liquid through the same.
2, The method of preparing artificial ferment from bacteria by filtration of the
acidified and cooled ferment according to the processes set forth in claim 1. When
using the voluminous bodies 1, 2, groups a and b, the lactic acid is first neutralised
by means of calcium hydrate etc.
3, The method of carrying out the saccharification of the mash by means of
filtered malt extract, and of rendering available the starch contained in the malt
residues by boiling or in the high pressure apparatus.
4, The method of preparing mashes and worts free from bacteria for distilleries
yeast beer and wine manufactures by filtration thereof according to the process
referred to in claims 1, 2 and 4.