DE1196890B - Process for preserving the germination of cut parts of tuberous plants in which living germs or eyes are embedded - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

t. Cl .:

AOIc

German class: 45 b-1/06

Number:

File number: T17256III / 45 b

Filing date: 23 ^ September 1959

Display day:

For all processors of tubers, such as B. Potatoes that are forced to close their eyes or living germs, 'which are usually found at the ends of the tuber or in other mostly elevated places are embedded in the flesh of the tuber, to remove from the same, results in vain essentials Difficulty.

The removal of these eyes by hand is convenient in any large scale processing operation impossible, and that's why ge ίο is used comfortable abrasives or other peeling agents that act on the surface of the tuber in such a way that the The peel and so much of the pulp are sanded down until all, or at least most of the eyes are away. The resulting loss of valuable meat is rarely less than 20% of the original weight and sometimes increases up to 50%

This abraded material, including the peel, eyes and flesh, represents so far is almost always a worthless by-product, for example in potato processing, which also costs for removal entails. According to the invention this previously abraded material is transformed into a useful product.

The processing of the tubers should proceed according to the invention as follows: the potato parts, in which the living germs or eyes are embedded are cut off from the tuber and subjected according to the invention to a treatment by which the germination capacity of the cut off Parts contained germs are preserved. This way, any destructive rot formation is avoided prevented in the parts containing the germs even after prolonged storage.

The remaining part of the tubers is used for normal recycling.

To carry out the method according to the invention to maintain the germination capacity of the cut Tuber parts, these parts can be subjected to a drying process. Be there the parts are expediently dried at such a low temperature that the germinability is not impaired but the moisture content is low enough to preserve it guarantee. When the invention is applied to the treatment of potatoes, this creates a new type of potato seed, which has a relatively unlimited shelf life, is much easier and cheaper to transport than the previously common potato seeds and in the right season under less Labor can be planted.

Procedure for preserving the germination capacity
cut off parts of tuberous plants,
in which living germs or eyes are embedded
are

Applicant:

Robert Alexander Spencer Templeton,

Gosmore, No. Hitchin, Hertshire

(Great Britain)

Representative:

Dr.-Ing. F. Wuesthoff, Dipl.-Ing. G. Pulse and
Dipl.-Chem. Dr. rer. nat. E. Frhr. v. Bad luck man,
Patent Attorneys, Munich 9, Schweigerstr. 2

Named as inventor:

Robert Alexander Spencer Templeton,

Gosmore, No. Hitchin, Hertshire

(Great Britain)

You have already cut the seed potatoes into individual pieces before laying them out. But it happened just trying to make better use of the seeds. It is also known to split cereal grains into several parts cut up to. to achieve a better grinding of the grains in the mill, and thereby the To use the end pieces of the grains containing the germs as seeds. According to the invention on the other hand, cut off bone parts which contain living knowledges are added by preservation made a new recovery good.

The method according to the invention thus makes it possible to separate the parts containing the germs to be carried out at an early stage, i.e. not just before sowing, as is the case with the known Method of cutting up seed potatoes, in which only parts of the fruit, 'which contain germs, to be sown. Rather, the parts containing the germs have already been separated off a point in time when the remaining part of the fruit intended for human consumption is the Processing is to be supplied. This ensures that with tuberous crops similar to For the cereal grains mentioned, only part of the fruit is used as a seed, but the remaining part is used for human nutrition can find use.

509 508/45

In the case of the dehydration of those containing the eyes effected by drying according to the invention After their separation, the most important thing is to avoid the living Organism absorbs too much heat, while evaporation removes enough water to to prevent any destructive putrefaction and thus a more or less unlimited one To ensure durability.

However, it is not always necessary to be aware of the expensive drying methods at very low temperatures, z. B. in a vacuum or the like. To use, although these methods are of course used can. You can dry with warm air, for example, it should be noted that the Temperature of the product the heat of the heating, d. H. 37 ° C, not exceeding.

In individual cases, however, the product can also reach a higher temperature without major damage tolerate. * °

A good result can be achieved by using relatively dry air at 35 ° C, depending on after the dryness of the air and the size of the piece of potato in which the eye is embedded, a time of about 8 hours is required for drying, which is practical in shift or continuous operation proves.

However, because of the large heat consumption involved in converting water into steam, one can also use fairly high temperatures, provided that the temperature of the product is not on a dangerous level rises. So you can z. B. 100 ° C in the initial stage of the drying process apply and then gradually reduce this temperature as evaporation progresses.

Preservation of germination in the separated Eyes, d. H. the prevention of destructive putrefaction can, according to the invention, also on other ways to be achieved. The prevention of destructive putrefaction occurs in about 11% Water a. You can now only partially dry or not dry at all and the shell-less Handle the surface in such a way that a coat or skin is formed, for example by treatment with a known antifouling agent that is harmful to the eye or living germ itself is harmless.

When processing potatoes, the potato tubers are suitable after cutting off the germs containing potato parts for any common type of further processing, such as. B. dehydration, Freezing or preservation in the usual way. For this processing method of tubers, especially potatoes, brings the method according to the invention, which is just as important as that Creation of a new kind of seed, great antechambers.;. de | in, there | Peeling the now according to the invention WfeÄäÄa £ 'potatoes no longer require the same thing great amount of labor as the ends are removed and relatively easy peeling with a much smaller loss of pulp, it is enough to remove the remaining peel and the final preparation by hand, which was extensive until now, reduced to a minimum can be.

Claims (5)

Patent claims: 1. Procedure for maintaining the germination capacity of cut parts of tuberous plants, in which live germs or eyes are embedded, characterized in that the cut off Parts are subjected to a treatment process through which a destructive putrefaction is also prevented in the event of long-term storage. 2. The method according to claim 1, characterized in that the cut tuber parts be subjected to a drying process. 3. The method according to claim 2, characterized in that it is dried with warm air, the temperature of the cut bulb ends not exceeding 37 ° C. 4. The method according to claim 3, characterized in that dried with air at 35 ° C will. 5. The method according to claim 1, characterized in that the cut tuber parts, optionally after pre-drying, by treatment with a known antifouling agent be covered with a coat or a skin, the destructive putrefaction prevented. Considered publications:
U.S. Patent No. 2722256;
Journal »Die Müllerei«, 12th year, No. 7 from 14.2.1959, pp. 85, 86. 509 508/45 2.65 © Bundesdruckerei Berlin