DE1517757C - Method and device for obtaining lupulin from hops - Google Patents

Description

LOLI ΙΟΙ

Later, in U.S. Pat. No. 338 027 of March 16, 1886, a method for separating lupulin from the hop cones or cones was described, in which the hop cones were first thoroughly dried and then sieved on sieves, through which small fragments of the leaflets were put together were allowed to pass with the Lupu-Hn. The process was generally carried out ^{at about 20 ° C.}

Later, according to US Pat. No. 478,508, hops were placed in a stirred vessel at a temperature dried at about 100 ° C. It is clear that such an elevated temperature preserves the volatile aromatic oils that are present in the lupulin particle are opposed to:

A process was later described in US Pat. No. 1,464,520 in which the separation of lupulin of hops was done in such a way that the hops were ground first and then the lupulin separated therefrom by sieving. In this extreme procedure, too, it was neglected that that lupulin is easily subject to oxidative decomposition and that the working conditions proposed here offer no protection against it.

U.S. Patent 2,833,652 has shown relatively low operating temperatures in lupulin separation processes applied to help retain the valuable components. This was the first time that the whole was frozen Described hops and then shaking the same so that the frozen lupulin particles are released will. *

It was later indicated in U.S. Patent 2,952,546 that when hops were frozen technical difficulties arise, in addition to the fact that these freezing operations are expensive and troublesome are.

Finally, in German Patent 495 093, a method for comminuting the Described hops, the hops being ground with cold water. This procedure has similar ones Disadvantages like the other processes mentioned above, in which the hops are crushed, dried and sieved or is married. The lupulin particles are namely destroyed or at least in all of these cases badly damaged.

As far as lupulin was obtained from whole hops, this was done according to the above-mentioned Methods that prescribe the freezing of whole hops umbels. However, these procedures are because of the Freezing is cumbersome and expensive and still leads to damaged lupulin particles.

The object of the invention is therefore to create an improved, simplified and economical method for the separation of lupulin particles from hops, so that practically no damage or crushing the lupulin particles enter, no noticeable oxidation or decomposition of the soft resin content or volatile aromatic oil in the lupulin particles takes place, which can also be carried out on the farm or where the hops grow, and in which the treated hops are fresh (not dried, dehydrated or stored for significant periods of time) or dried, or a mixture of both.

This object is achieved in that hop cones with water to form a When the slurry is mixed, the slurry is stirred sufficiently to be practically undestroyed To release lupulin particles from the hops, and the lupulin particles to be separated from the rest of the slurry. The lupulin particles are separated off on a sieve that is fine enough to hold the lupulin particles on it.

The invention will now be described in more detail with reference to the drawings. In this poses

F i g. 1 is a schematic elevation view of the invention for effective simple and economical

ίο Separation of lupulin from fresh, dried or device used from both mixed hops;

F i g. Figure 2 provides a top view on line 2-2 of Figure 2. 1, and

F i g. 3 shows a vertical section on the line 3-3 of FIG. 2.

One convenient form of apparatus suitable for practicing the invention consists of a combination of one Stirring device 10 and a sieve

Ao device 12. The stirring device 10 consists of a stirring vessel 14 of suitable shape and size with cylindrical walls 16, a base 18 and a cover 20. At its upper end, the cylindrical wall has a flange 22 extending radially outwards which enables the cover 20 to be detachably fastened by suitable means such as bolts 24.

The cover 20 has an axially arranged opening 26 in which a funnel-shaped feed inlet 28 is attached. A stirrer 30, which has a stirrer shaft 32, extends through the axis of the stirring vessel 14 • has, the lower end 34 of which is at a distance from the bottom 18 of the vessel. The upper end 36 of the Shaft 32 is connected to a drive device 38, for example a reversible electric motor via a Gear 40 and a drive shaft 42 connected.

A plurality of agitator blades 44 extend radially outward from the agitator shaft 32 in the vessel 10. An anti-foaming device is located near the topmost impeller and below the opening 26 of the vessel 46 provided, for example a turbine-like wing with many blades, which is also rigidly attached to the agitator shaft 32. In the vessel, several extend around a distance

♦ 5 stood from each other having impact bars 50 between the agitator shaft 32 and the cylindrical wall 16 of the Kettles 14, which are removably attached to the lid 20, for example by bolts 48.

The bottom 18 of the vessel has an axially oriented Outlet 52, which is in communication with a line 54, which via the valve 58 to the pump 56 leads. The outlet end of the pump 56 is in fluid communication with the sieve device 12 via line 60.

Furthermore, a bypass for the pump 56 are provided, which consists of a line 62, - which extends tangentially from a point in the lower part of the Vessel 14 extends outward and the line 60 and the valve 54 in communication stands.

The outlet end 66 of the conduit 60 is in fluid communication with a conventional separator 12, the for example from a Sweco Vibro Energy Separator may consist of vibrators 74 located in housing 68. The screening device 12 includes a plurality of chambers 70 consisting essentially of a first chamber and a last chamber and at least one intermediate chamber, where-

5 6

in which the chambers are connected to one another by a screen-north scrubber 78. Adjacent to the

tion 72 are separated. · Inlet 26 of vessel 14 becomes the multi-vane

Used in fluid communication with the uppermost or first turbine-like impeller 46 to the

Chamber 70 is a line 76, the outlet end of which is essentially open in foam generated during stirring.

Maintain or break fluid communication with the feed inlet 28 of FIG. The cyclical one described above

Vessel 14 is above the washer 78. The exhaust operation is continued for a sufficient time until

At the end of the line 84 there is also practically no more lupulin from the hops next to its inlet

end 82 arranged. - can be removed. At this point it can

The Lupulin-Ge drainage pipe 76 leads from an intermediate chamber to a separate container recirculation line 86 out, which the lupulin swings in somehow, with it used leaves, twigs suitable container (not shown) emptied. can be removed from the system. then

In one mode of operation, a hop batch in 'can be brought back into the position of the drain pipe 76, the cylindrical vessel 14 through the funnel-shaped, in which it is in communication with the scrubber 78 in the feed inlet 28 along with water and the method using manufacture added to a hop slurry. 15 of a fresh batch of hops to produce a different hop slurry The water temperature must be repeated low enough ren hop slurry. With a decomposition or deterioration of the fresh hop batch, a sufficient amount of soft resin and the contained aromatic curse water amount is added to the water contained in the consumed term oil in the lupulin during stirring and the flake, etc., which from the to prevent separation. Conveniently the temperature is 20 system was removed to replace,
in the range from about 1 to 20 ⁰ C or even higher, whereby in another embodiment of the invention the choice of the temperature from a number of varia- the valve 58 in the line 54 leading to the pump 56 can bleed, as the special kind of treated hops, leads, closed and the valve 64 in the line 62, depends. Thus, lower temperatures which lead to line 60 are more favorable, * so that the contents of the vessel 14 when fresh, frozen hops are handled according to the invention through the tangentially connected, while temperatures between 10 and line 62 instead of through the pump 56 are subtracted 20 ⁰ C or above can be effectively applied. In this embodiment, the baffle may be, if bale hops away for recovery of beams 50.

Lupulin is worked up. The ratio of hop- The rotation of the impeller 44 with predetermined

The speed of the water can vary and is usually between about

If the slurry holds 0.227 to 0.907 kg of hops at 100 and 1000 rpm, one rotation is sufficient

for each 3.8 l of water. of the hop slurry so that this

The hop slurry is made by rotating by centrifugal force against the cylindrical

the agitator shaft .32 and the attached wing 44 wall 16 of the vessel 14 is held. Naturally

moved by the drive motor 38. The impact bars 50 35 depends on the choice of a special rotation speed

support the movement by making a rotation of a number of variables, such as

prevent the hop slurry in the vessel 14. the specific type of hops treated, d. H.,

During the stirring process, the hops - whether they are dried, balled, frozen, etc., as well as slurry continuously - through the vessel outlet 52, on the temperature and duration of the treatment. In the case of the line 54 and the valve 58 to the pump 56 in this manner of operation, the pressure and the _; Pulled, which promotes the mixture via line 60 to the speed at the tangential outlet of the vessel from the upper end of the vibrating sieve assembly 12. to transport the contents to the vibrating screen assembly 12. The top screen 72 is of a suitable mesh size. It can be seen that it is naturally given so that the lupulin particles can pass through, which if the pump can also be used. These hop tops, sprigs, etc., however, backward centrifugal mode of operation will generally be provided, the latter being added from the upper chamber as they are withdrawn through the drainage pipe 76 an initial separation of the lupulin 70. The particles from the leaves in the stirring vessel 14, mesh size of the uppermost or first sieve 72 can, that is, the lupulin particles that were released from the cover or between a mesh size of 2.0 to support leaves, as a result of their larger 0.15 mm and a sieve with a specific weight of 5 ° will preferably migrate to the outer wall 16 with a mesh size of approximately 0.22 to 0.23 mm. In this way they are used by the crowd. The mesh size of the lowermost or last cover sheet which is retained in the vessel 14 for further stirring th sieve 72 can be between 0.10 and 0.044 mm, ahead of the vibrating sieve and is preferably 0.074 mm. Transported by the sub-order 12. In addition, it was found that the liquid component runs essentially on the sieve, that the centrifugal mode of operation keeps the foaming of the slurry and the lupulin particles extremely small during the stirring. One recognizes held back and by the intermediate chamber70. also that an effective implementation of the er via a drain pipe 86 in a suitable container finding, for example, subtracted from such variables as the. Optionally, the lupulin particles can be fed at a stirring speed and the number, size and shape of a further dewatering zone, if the impeller depends. Determining this this is what you want. Variables to create a suitable equality

The essentially liquid component of the hop weight between the agitating effect and the centrifugal effect

Slurry from the lowest chamber 70 in the vessel can be readily obtained by those skilled in the art

through the drain pipe 84 to the upper sloping end 82.

of the scrubber 78 and carries with it the deck 65 12 samples of 300 g each from a batch of dry

leaves and twigs from the drainpipe 76 again nem, concentrated hops were on their α- and / 3-Säu-

analyzed back into the vessel 14 via the funnel-shaped intrinsic content. The results of the analyzes were

Jaß 28, the one with the lower inclined end 80 of the ren as follows:

7th ι / 3-acids, "/» sample α-acids,% 5.34. 1 5.72 4.81 ■> 2 6.19 4.56 '.' ■ 3 5.74 4.36 4 - · .. 5.45 4.85 - ■ · -5 ■ .: .. 6.11 4.93 ■ '... 6th 6.08 4.93 '. - 7 · ■ '' ■ 5.27 '^; 3.69 . ·. : -c8 · ■■ -, 6.09 4.38 · 9 6.02 - 4.23 10 6.05 ' 5.31 ■■ ·. . ': ■ 11 5.23 4.68 .12 · 5.41 4.59 average 5.78

Five approaches were used to determine the lupulin that can be obtained from the dry, concentrated hops carried out each approach from four groups of consisted of three batches each. Each batch of hops was put into vessel 14 along with a sufficient amount Mixing water introduced to make a hop sludge

- mung to give, which is then stirred and through the system was circulated in the centrifugal mode described above. After 20 minutes were

to remove the used cover sheets etc. from the system as described above. At the end of each Approach the sieve was dismantled and each lupulin found in the sieve was added to the amount obtained from the last batch. The lupulin from each Set of three lots were freeze dried, weighed and analyzed. The results of the approaches are listed in Table I below.

Weight
(G) Table I. 27.51 -
27.68
30.58
32.26 Grai
«Acids ran
^ Acids Return
α-acids vinnung
^ Acids Batch no. 118.5
126.1
127.1
136.9 Examination, ° / o
α-acids. j ^ acids 29.60
30.17
29.64
30.66
29.75 42.78
44.74
43.24
50.53 32.60
34.90
38.87
44.16. 87.1
85.9
84.6
86.2
87.0 Approach 1
Ibis 3
4 to 6
7 to 9
10 to 12 508.6
127.2
143.9
131.2
125.4 36.10
35.48
34.02
36.91 30.05
29.75
29.18
29.10
27.97 181.29
44.55
48.03
43.55
42.66 150.53
38.38
42.65
40.23
37.31 91.1 total 527.7
125.6
126.3
136.3
131.9 . 35.64
35.02
33.38
33.19
34.02 28.99
28.45
25.05
26.65
20.61 178.79
42.08
44.95
'46 .16
42.75 158.52
37.37
36.85.
39.66
36.89 96.0 Approach 2
13 to 15
16 to 18
19 to 21
22 to 24 520.1
144.6
125.1
138.2
129.5 33.88
33.50.
35.59
33.87
32.41 25.31
24.84
29.75
28.53
28.11 175.94
47.50
42.22
43.88
45.84 150.77
41.14
31.34
36.83
26.69 , 91.2 total 537.4
125.0
128.7
131.9
143.3 33.83
, 32.85
33.75
31.75
35.40 27.84 179.44
47.90
41.11
44.98
47.09 136.00
31.05
38.29
37.63
40.28 82.3 .. ".. Approach 3
25 to 27
28 to 30
31 to 33.
34 to 36 528.9 33.39
38.32
31.94
34.10
32.86 181.08 147.25 89.1 total 34.24 Approach 4
37 to 39
40 to 42
43 to 45
46 to 48 total Approach 5
49 to 51
52 to 54
55 to 57
58 to 60 total

The above values show that the average ix- acid analysis of the lupulin separated from the hops was 34.2%. Based on the analysis of hops 5.78% "acids (average), the average recovery was the" acids in Lupulinprodukt 86.2 ° / _0, the average recovery of / 3 acids 89.9%. The total weight of the lupulin product from the five batches was 2622.7 g or 14.6% of the weight of the original hops treated according to the invention.

Favorable lupulin yields were also obtained when using fresh, frozen hops and not

309 612/158

concentrated hops. When using 50 g samples of freshly frozen and uncompressed Hops with 2500 ml deionized water for each sample to make a hop slurry was practically the same lupulin separation process, as described above on the basis of dry, concentrated hops, repeated. The fresh one frozen hops had an average α-acid content on a dry basis of 6.2% and an average / S acid content on a dry basis of 5.0%, while the average -acid content on a dry basis of the dried ungaled Hops was 6.6%. The results of the runs are shown in Table II below. ·

Table II

approach hop test
α-acids, ° / o Back
extraction
α-acids;% 6th freshly frozen 43.3 '84.1 7th fresh frozen 34.8 84.7 8th fresh frozen 35.3 86.1 9 not dried 33.5 74.0 concentrated 10 not dried 35.6 82.9 concentrated 11th not dried 35.2 83.6 concentrated

1 sheet of drawings

Claims (8)

JL O M. I I \ J I 1 2 the last sieve (72) is fine enough to hold back the lupulin particles on it, and coarse enough to let the rest of the slurry through 1. Method for obtaining lupulin from and means (86) for removing separated Hops using water, thereby identifying 5 lupulin particles from the separating device (12). draws that hop cones with water under 9. Apparatus according to claim 8, characterized Forming a slurry are mixed by means (76, 84, 82, 78) for transporting the the slurry is agitated sufficiently to move remainder of the hops and slurry into the practically undestroyed lupulin particles from the cylindrical vessel (14). To release hops, and the lupulin particles from io 10. Device according to claim 8 or 9, geRest separated from the slurry. characterized by a plurality of axially 2. The method according to claim 1, characterized in that the impact rods (50) are arranged in the vessel (14).
characterized in that the lupulin particles are separated from the rest of the 11th device according to claim 8 or 9, characterized in that the mixture is separated on a sieve, characterized in that the line (60) is a line (62) arranged tangentially around the lupulin particles 15 ) has to withhold their inlet on it. ends in fluid communication with the lower part of the 3. The method according to claim 1, characterized by the cylindrical wall of the vessel (14),
draws that the slurry in a first Zone is stirred, the lupulin particles from hops practically without being broken 20 are released and the slurry and released lupulin particles are fed to a second zone in which the lupulin particles are separated from the rest. The invention relates to a method and a fore The hops are separated on a first sieve for the extraction of lupulin from hops the one which is fine enough to hop the rest of the, 35 help of water. fens withhold, and coarse enough to allow the free- When making beer or malt beer is called The added lupulin particles are used in a second sieve, an important component of the hops. Step through the hops to let, the second sieve finely holds certain soft resins that not only make the beer is enough to hold back the lupulin particles, has a bitter taste, but also reduces the aroma. and coarse enough for the rest of the slurry to borrow. In common practice, the whole hopping can pass through and the lupulin particles are fenced, the leaves, stems, petals, lupulin be won. and occasionally include seeds, in the wort 4. The method according to claim 3, characterized in that the necessary resins and aromatic draws that extract the remainder of the hops and the oils from the lupulin,
35 The lupulin particles are closed, cup-shaped, similar, fibrous containers that are flavored with hops. 5. The method according to claim 1, characterized in that marked substances are filled, including a ratio that the weight ratio of hops moderately low amount of moisture and essentially too Water in the slurry between 1: 100 borrowed bitter soft resins and volatile aromatic and 1: 5. 40 see oil. 6. The method according to claim 5, characterized in that it was known that the aroma content of the shows that the lupulin impeller slurry moves dry in normal practice is moving at a speed now * g of the hops before being sent to the brewery rotate between 100 and 1000 rpm. deteriorated and that an oxidation of the lupulin 7. Device for separating lupulin from 45 easily enters if the dried hops are not in Hops, characterized by stirring means (10) for tightly closed containers (preferably in a single one Aqueous hops atmosphere in a container) is brought to a further oxide gold suspension and means of separation to prevent dation. (12) the lupulin part released from the hops - It can be seen that this process is expensive because chen. 50 here foreign substances are packed and handled 8. Apparatus according to claim 7, characterized thereby. Therefore, since the middle of the mark that the stirring device (10) a 19th century attempts were made to separate the cylindrical vessel (14) with an inlet (28) and lupulin from the hops. Certain economy has an outlet (52), in the vessel (14) have a few disadvantages, however, their widespread application stirring device (30) is arranged, which prevents a manure. In addition, many of these LÖ agitator shafts (32) existed, which consisted of a number of attempts at a lupulin product, which has radially extending agitator blades (44), was excessively crushed or crushed and therefore the agitator shaft (32) immediately below the inlet was its valuable Ingredients exposed to an unnecessarily rapid and (26) in the cylindrical vessel (14) foam-detrimental oxidation,
hindering means (46) are firmly attached and over 60. For example, in the British patent a conduit (60) is the flow connection between the document 2 458 of October 27, 1859 the beating, stirring device (10) and the separating device (12) threshing and cutting of hops describes how the vessel outlet (52) is made and where, in the case of seeds and lupulin from the leaf in a circular shape, the separating device (12) consists of a first sieve, inclined sieve with one or more rotating sieves (72) and a last sieve (72) consists, the first 65 the brushes are separated. Such a coarse sieve (72) is fine enough to hold back the rest of the action of the sensitive lupulin particles tearing hops, and coarse enough to allow the lupulin and the valuable resins and aroma-released lupulin particles to pass through, subject oils to oxidizing conditions.