DE663690C - Process for the simultaneous extraction of protein-rich feed and alcohol from residual milk - Google Patents

Description

Process for the simultaneous production of protein-rich feed and alcohol from residual milk The invention relates to a method for simultaneous Obtaining protein-rich animal feed and alcohol from residual milk. Purpose of Invention is a high-quality, protein-containing feed made from whey and, at the same time alcohol can still be obtained by a process which is so simple that: it can be obtained in a dairy industry Small business can be carried out successfully.

The invention consists essentially in that whey, which optionally small amounts of buttermilk and / or skimmed milk and, if necessary, sticks, oil compounds, such as ammonia and / or calcium or phosphorus-containing compounds are added, with coarse-grained or tuberous mushrooms, especially sweeping mushrooms, in quick time Fermentation (within 1z to 2q. Hours) sufficient additional quantities, e.g. B. of about 5%, is fermented with stirring and aeration, whereupon the mushroom mass after completion the fermentation process, preferably by sieving, separated from the liquid and, as far as it is not used for new batches, dried and the liquid is processed in the usual way on alcohol. This came from the liquid separate mushroom mass, optionally after carrying out an autolysis, in particular by storing for several hours at about 37 °, to higher temperatures, e.g. B. about 60 °, heated and then dried on drum dryers at high temperatures.

In order to increase the yield of protein feed, you can. relief measures can still be used with advantage. So you can z. B. lactic acid neutralize with ammonia and thereby use ammonia lactate as a nitrogen source for the Kefir grains, i.e. protein from inorganic nitrogen, are obtained and added small amounts of lime and phosphate compounds achieve an increase in yield.

Thus, according to the present process, it becomes the cheapest and most worthless Residual milk, namely whey or the milk sugar contained therein, to build up a Protein feed used. The advantage of the method according to the invention is there in that .that .the process can not only be carried out in large companies, but that even the large numbers of small businesses in which large quantities of the Raw material are not available, can be recorded, through which the possibility of procuring protein-containing feed from domestic raw materials is expanded considerably.

It is known "coarse-grained, bulbous mushroom structures, in particular Kefir grains, to be grown and propagated in skimmed milk. It has also already been proposed been used to dry milk products fermented with kefir or yeast.

In contrast, the present invention is by no means exhausted in the thought of increasing mushroom structures in whey and the like; rather it consists in the connection of a number of combination elements through their interaction a very valuable, protein-rich feed and at the same time considerable quantities of alcohol can be obtained in good yields by a simple process.

Example In a small dairy, for example, there are 2,000 daily 1 whey available. This whey is then mixed with Zoo 1 buttermilk and the Degree of acidity by adding 25% ammonia to a degree of acidity according to S o x h 1 e t - H e n k e 1 set. In addition, 2 kg of disodium phosphate and 2 kg of calcium chloride are added added. After heating to 22 °, 5 0; ö sweeping grains, based on the amount of whey, added (- iookg). A strong fermentation occurs with intensive stirring and ventilation. After 8 hours, the degree of acidity is determined and this again by adding a Neutralizing agent reduced to about 10 degrees of acidity according to S o x h 1 e t -Henke 1. In this case, sodium bicarbonate can be used to blunt it. After further 12 hours is the largest part: the nutrients that are important for sweeping reproduction exploited.

The kefir grains are filtered and overall weighed. Practical experiments gave a yield of 15 to 25%, based on the amount of kefir mushrooms used, in 2 hours.

From 100 kg of kefir mushrooms you get izokg and by burning it 30 1 96% alcohol. The kefir obtained can be simply rubbed, i.e. without With the help of expensive machines, such as centrifuges, separated from the liquid and can be converted into a durable form by drying. Drying can be done in the simplest way Way z. B. be done in that the moist mushroom mass to temperatures above 6o ° heated and then dried on drum dryers. Special precautions are not required here, as the kefir mushrooms intended for animal feed use the Viability can be taken. An autolysis that z. B. -by leaving it standing can be effected before drying at about 37 ° C is not absolutely necessary. You can also liquefy the kefir by other measures, such as z. B. by treatment with pressurized steam achieve.

The dry product contains 3o to 20% crude protein; so it is as to address high-quality, protein-containing feed.

The above example shows that the fermentation when using larger Amounts of mushrooms, e.g. B. 5% and more, extremely quickly (in i 2 hours), namely can be carried out practically completely. A small business; that every day 2ooo 1 whey are available, in 8 days about i 6o kg of feed and gain about 2 ¢ o 1 spirit (96%).

Claims (3)

PATENT CLAIMS: i. Process for the simultaneous extraction of protein-rich Animal feed and alcohol from residual milk, characterized in that whey, the possibly small amounts of buttermilk and / or skimmed milk and possibly nor nitrogen compounds such as ammonia and / or calcium- or phosphorus-containing Compounds, may be added, with coarse-grained or bulbous mushrooms, in particular Kefir mushrooms, sufficient for rapid fermentation (within 12 to 24 hours) Additive quantities, in particular of about 50,000, fermented with stirring and aeration whereupon the mushroom mass after completion of the fermentation process, preferably through Sieve, separated from the liquid and, if not used for new batches finds, is dried while the liquid is processed in the usual way on alcohol will. 2. The method according to claim i, characterized in that the liquid separate mushroom mass, if necessary after carrying out an autolysis, in particular by storing for several hours at about 37 °, at higher temperatures of about 60 ° heated and then dried on drum dryers at high temperatures. 3. Method according to claim i, characterized in that the degree of acidity during fermentation by adding neutralizing agents such as ammonia, sodium bicarbonate, to about 10 acidity according to S o x h 1 e t - H e n k e 1 is lowered.