An Improved Manufacture of Animal Food from Skim Milk.
Year: 1898

page_text: Date of Application, 8th Dec., 1898-Accepted, 28th Jan., 1899
COMPLETE SPECIFICATION.
An Improved Manufacture of Animal Food from Skim Milk.
We, CARL JUNG, Engineer, of XVII Hernalser Hauptstrasse No. 17, ADOLF
BRECHER; Banker, of IX Lichtensteinstrasse No. 2, and ADOLF KITTEL, Electrician,
of V Herthergasse No. 19, all of Vienna, Austria, do hereby declare the nature of
this invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:—
The large quantities of skim milk produced in dairies could up to the present time
only be utilised very partially and in limited quantities for animal food, as owing
to its rapid deterioration it could only be utilised fresh and, owing to the great
cost of conveyance, it had to be mostly consumed at the place of production. The
nourishing quality thereof is mainly due to its comparatively high percentage of
nitrogenous inatters, in particular casein, and its favorably composed solid residues;
on the other hand it only contains very few bodies free from nitrogen, and requires
therefore to be mixed with food materials that are rich in carbo-hydrates, as other-
wise, in consequence of the excessive consumption of nitrogenous alimentary sub-
stances, the utilisation of the milk would be restricted and the nutritious effect only
a partial one.
The present invention relates to the manufacture of animal food from skim
milk which shall contain the alimentary substances requisite for a good and suit-
able nutrition in the correct proportions, which is very durable and readily trans-
portable, and which is particularly distinguished by its easy asimilation. The
manufacture is carried out as follows: In the fresh sweet skim-milk the bran of
any kind of grain is thoroughly soaked whereby the nutritious bodies contained
therein, in particular the carbo-hydrates, become dissolved and mixed with the
nutritious bodies, in particular casein, contained in the skim milk, at the same time
a large quantity of the starch of the bran is converted into sugar.
In order to remove the indigestible and consequently valueless constituents from
the food, which amount to about 30. per cent. thereof, the mash produced is sub-
jected to the action of a press or a centrifugal apparatus, whereby the liquid con-
stituents are separated, leaving a fibrous residue.
The liquid nutritious extract thus obtained is then evaporated in vacuo and is
rapidly dried by means of heated plates or rollers, and is lastly ground. The meal
thus obtained can either be used by itself or be mixed with other foods, in varying
proportions, according to the kind of animals to be fed therewith, the mixture being
either left in pulverulent or granular form or made into solid cakes for the trade.
The food material can be stored for a long time without losing its nutritious
properties or deteriorating. When used for food it is moistened with water and
can either be employed alone or mixed with other foods.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what we
claim is:
1. Manufacture of animal food from skim milk, consisting in soaking bran in

page_text: the skim milk, so that the nutritious constituents of the former become dissolved
and mixed with those of the milk, while at the same time a large proportion of the
starch is converted into. sugar, after which the fibrous constituents are separated
from the mass by pressing or centrifugal action, the resulting liquid being then
evaporated and heated to dryness, ground and, if necessary pressed into cake form,
substantially as described.
2. As a new product animal food readily soluble in water prepared as set forth
in the first claim either in pulverulent or granular form or pressed into cakes, and
used either by itself or mixed with other foods, substantially as described.
Dated this 8th day of December 1898.
ABEL & IMRAY,
Agents for the Applicants.