Method for Causing the Separation of Caseinogen from "Separated" Milk and its Preservation in a Dry State.
Year: 1896

page_text: Date of Application, 29th July, 1896
Complete Specification Left, 31st May, 1897-Accepted, 24th July, 1897
Method for Causing the Separation of Caseinogen from "Separated"
Milk and its Preservation in a Dry State.
HUBERT HIGGINS of 26 Trinity Street Cambridge Demonstrator of Anatomy to
Cambridge University do hereby declare the nature of this invention to be as
follows:-
This invention relates to the separation of caseinogen from "separated" milk
and its preservation in a dry state.
Whereas enormous quantities of separated milk or milk deprived of its fatty
constituents are wasted because of the difficulty in disposing of it profitably, and
the rapidity of its decomposition I have devised the following method for
separating a highly nutritious consistuent called Caseinogen from separated milk
and its preservation in a dry state.
For the separation of caseinogen I place separated milk with or without water in
a tank which is provided with taps at different levels I then add an acid such as,
acetic, hydrochoric Sulphuric acids or the like.
This causes the precipitation of caseinogen or the antecedent of casein. When
this falls to the bottom of the tank I draw off the supernatant fluid by means of
the taps.
I may previously wash any excess of acid from the precipitate by water, or
immediately dry it in a suitable drying chamber so as to abstract the water or
subject it to hydraulic or other pressure so as to abstract water and obtain the
proteid in a convenient form.
[ Separated milk treated according to my Invention produces in a convenient
form a highly nutritious article of food which can be employed as an addition to
numerous food stuffs.
Dated this 28th of July 1906
HUBERT HIGGINS.
Method for Causing the Separation of Caseinogen from "Separated"
Milk and its Preservation in a Dry State. "
I, HUBERT HIGGINS of 26 Trinity Street, Cambridge, Demonstrator of Anatomy to
Cambridge University, 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:-

page_text: Large quantities of a "separated" milk, or milk deprived of its fatty constituents
are wasted because of the difficulty in disposing of it profitably, the object of the
present invention is to utilize the portion of this milk most valuable as food by
separating from it a highly nutritious constituent called Caseinogen and preserving
the same in a dry state.
In carrying out the invention I place the separated milk in any convenient
receptacle and add to it acetic acid, in the proportion of, approximately, 10 gallons
of a 5% solution of the acid to every 100 gallons of milk treated.
Upon the addition of the acid, the mixture should be agitated, when a precipitate
will be thrown down. The mixture is allowed to stand undisturbed until the
precipitate has settled at the bottom when the supernatent liquid is drawn off.
The precipitate is then washed to remove any excess of acid and lactose and
treated, to remove all traces of liquid, by immediate drying in any suitable drying
chamber. A more rapid separation of the precipitate will be caused by the
application of heat or by the addition to the milk, before its admixture with the acid,
of water in equal bulk or more.
In place of the acetic acid, the following acids may be employed, viz.
10 galls. of a 5% solution of hydrochloric acid, or
7
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10 "
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,, nitric acid, or
"phosphoric acid.
The dry product which consists of pure or practically pure caseinogen, may be
ground into a powder and put up in packets, either alone or in combination with
Hour or other food stuffs. Preferably metal cases or glass bottles are employed,
although it may be kept for a considerable time if only wrapped up in paper. Or the
product either singly or in combination with flour or other food stuff may be
compressed into cubes before being dried and handled in that form.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. Treating separated milk with a suitable acid to precipitate caseinogen
substantially as described.
2. The employment of acetic acid or hydrochloric acid or nitric acid or phosphoric
acid to precipitate caseinogen from separated milk substantially as described.
3. The product caseinogen obtained from separated milk by the process described.
Dated this 21ot day of May 1807
BOULT & WADE.