NZ206648A - Ruminant feed formed by reacting urea with lactose-containing material - Google Patents
Ruminant feed formed by reacting urea with lactose-containing materialInfo
- Publication number
- NZ206648A NZ206648A NZ206648A NZ20664883A NZ206648A NZ 206648 A NZ206648 A NZ 206648A NZ 206648 A NZ206648 A NZ 206648A NZ 20664883 A NZ20664883 A NZ 20664883A NZ 206648 A NZ206648 A NZ 206648A
- Authority
- NZ
- New Zealand
- Prior art keywords
- product
- urea
- lactose
- weight
- containing material
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/10—Feeding-stuffs specially adapted for particular animals for ruminants
- A23K50/15—Feeding-stuffs specially adapted for particular animals for ruminants containing substances which are metabolically converted to proteins, e.g. ammonium salts or urea
Description
New Zealand Paient Spedficaiion for Paient Number £06648
ft
206648
Priority Date(s): .. J, «?,
Complete Spacification Filed:
Class: . p .
Publication Date: fj .9. ?£? .1.986
PO. Jouma!, No:
N.Z.No.
NODRAWINGS
IvEW ZEALAND
Patents Act 3953
COMPLETE SPECIFICATION
"Products based on complexes of urea and of materials containing hydrolyzed lactose, their preparation, and their use for feeding ruminants." _
We, CORNING GLASS WORKS, a Slofc <$
v (Ai'MSlafa ^ -hw&nca eft re* ra. , Cov/i\Aq , Y* h~ >
New York,! 14831, United States of America and la Societe
SANDERS, a French company of 17 Quai de 1'lndustrie-91200
ANTHIS MONS, France do hereby declare the invention, for which we pray that a Patent way be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement : -
- 1 - (Followed by 1A.)
- iA-
206648
The invention relates to products based on complexes of urea and of materials containing hydrolyzed lactose/ their preparation and their use for feeding ruminants.
It is well known to incorporate urea in feeds for ruminants; the quantity of urea which can be incorporated is, however, limited to a few percent because urea decomposes in the rumen of the animal, giving ammonia which is toxic to the latter.
To counteract this disadvantage, it has been proposed to replace free urea with certain sugar-urea complexes, generally called glycosyl ureas, in order, in particular, to avoid appreciable decomposition of urea to ammonia in the rumen. Lactosyl ureas (complexes of lactose and urea) Csee U.S. Patent No. 4,267,314), in particular, have thus been proposed. These products have not, however, been employed in practice for economic reasons.
The invention aims at providing new products based on complexes of urea, suitable for feeding ruminants, which offer the advantages of a high possible urea content and of allowing only a low proportion of free urea to remain.
The .invention relates to a product for feeding ruminants which is formed by reaction of urea with a lactose-containing material whose lactose has previously been at leant partially hydrolyzed to glucose and galactose, said product containing less than 2% by weight of free urea.
As materials containing at least partially hydrolyzed lactose it is possible to employ permeates of lactoserums or lactose-containing liquors (obtained by deprotei nat i on of lactoserums) whose lactose has been at least partially hydrolyzed, as well as the lactoserums whose lactose has been at least partially hydrolyzed. At present, the permeates or the lactose-containing liquors with at least partially hydrolyzed lactose are
preferred for economic reasons. The materials containing hydrolyzed Lactose may or may not be deminera-lized. It is preferred nowadays to employ non-deminera lized materials for economic reasons. Hydrolysis of the lactose is carried out, preferably, by an enzymatic route, known in itself, preferably with the aid of immobilized enzymes (lactase or fbrga lactosi dase). This guarantees the quality of the sugars which are obtained and therefore reduces to a minimum the Maillard reactions and the formation of secondary products of reaction. Preferably, these new complexes contain 5 to 40 % by weight of urea, particularly 15 to 30 %.
Preferably, the new products of the invention are employed in the form of concentrated liquid products. These products are homogeneous, stable (absence of crystallization) and easy to handle. The preferred liquid form makes it possible to save on drying and hence to minimize the costs. Nevertheless, if desired, the said products can be dried to complete dryness.
The pro-ducts of the invention are easily prepared by dissolving urea in the lactose-containing material containing at least partially hydrolyzed lactose, preferably at a temperature of 50-90°C, particularly of 60-80° C, with agitation; by adjusting, if necessary, the pH in the range from 2.5 to 4.5, preferably below 3, by adding acid to the solution obtained; and by heating the resultant acid solution at a temperature of 50-90°C, preferably 60-80°C for a time sufficient for the free urea content of the resulting product not to exceed 2% by weight, preferably 1.5% by weight. The ease of preparation appears to be attributable to an enhanced reactivity of glucose and of galactose.
According to a preferred embodiment, phosphoric acid, HjPO^, is employed to regulate the pH, the said H3PO4 being an advantageous adjuvant frequently incor- • porated in feeds for ruminants. The quantity of H3PO4 incorporated will usually be between 2 and 7% by weight relative to the total of the product according to the invention. The phosphoric acid can be incorporated in
the form of an aqueous solution containing 85% by weight Of H3PO4.
The products according to the invention are feed additives which are useful for preparing feeds for ruminants, in particular in granular or liquid form. They enable, in fact, non-protein nitrogenous materials to be •'incorporated in the rations for ruminants.
In comparison to lactosyl-urea, they offer a higher possible content of urea, greater ease of preparation, the absence of any crystallization and, above all, an extremely reduced content of free urea.
The following non-limiting examples are given with a view to iI lust rating ■ the invention.
Example 1 and comparative examples A, B and C;
This example illustrates the preparation of a product according to the invention from 20% by weight of urea and a lactoserum permeate 88.5% of whose lactose has been hydrolyzed by means of immobilized ^-galactosi-dase. The composition and the properties of this pei— meate containing partially hydrolyzed lactose were as follows:
pH 3.86
color 490 IU
dry extract content 59%
glucose 21.57%
galactose 21.57%
residual lactose 5.62%
total nitrogen matter 2.00%
CN x 6.38)
residual true proteins 0.18%
ash (inorganic salts) 5.10%
60 g of urea were dissolved in 300 g of hydrolyzed permeate heated at 80°C with agitation for 5 minutes. After cooling to ambient temperature, the pH was adjusted to 2.5 by adding 16.8 g of an aqueous solution containing 85% by weight HjPO^, and the whole was then heated at 80°C for 2 hours. The free urea content of the product was measured at the start, after 15 minutes and after 2 hours heating, by the urease enzyme
method.
By way of comparison, there were aLso prepared (i) a product A (a urea-HjPO^ complex) by dissolving at 80°C, with agitation, 2 4 g of urea in 120 g of water, and then adjusting the pH of the resulting solution to 2.5 by adding 14.5 g of a solution containing 85% H3PO4; (ii) a product B by dissolving at 80°C, with agitation, 40 g of urea in 239.5 g of an aqueous solution containing 60% by weight lactose, and then adjusting the pH of the resulting solution to 2.5 by adding 17 g of a solution containing 85% H3PO4.; and <iii) a product C by dissolving at 80°C, with agitation, 60 g of urea in 300 g of a non-hydro lyzed lactose liquor, then adjusting the pH to 2.5 by adding 39.1 g of a solution containing 85% f^PO^,
The products A, B and C were next heated at 80°C for 2 hours, the free urea content being measured at the start, after 15 minutes and after 2 hours heating, as for the product of the invention.
The results obtained are collated in Table I
be low:
TABLE I
A B C Example 1
Free urea t = 0 15-14 13.54 15.04 15.92
content, t - 1.5.mi n 9.03 10.76 10.37 1.37
% by weight t = 2 h 10.80 12.13 7.3 1.55
Free urea after 2 t/
initial free urea, % 60-71 79-89 69-49 8.6-10
Crystallization on storage - abundant nil
2/3 by volume These results show the obvious superiority of the product of the invention from the points of view of the reduced free urea content and the absence of crystallization (compared to products B and C). It is also seen that the fixation of urea takes place rapidly, since less than 2% by weight of free urea remains after 15 minutes' reaction.
Examp Le 2:
This example illustrates the preparation of products of the invention containing, respectively, 10, 20, 30 and 40 % by weight of urea. These products are prepared by an operating procedure which is similar to that followed in Example 1. The quantity of hydrolyzed permeate was 300 g. 30, 60, 90 and 120 g of urea, respectively, and 12.94, 16.80, 21.67 and 27.22 g of a solution containing 85% H3PO4, respectively, were employed.
The glucose and the free urea contents were measured at the start and after 15, 30, 45, 60 and 120 minutes' reaction at 80°C, pH: 2.5.
The results are summarized in Table II below.
It is seen that the proportion of residual free urea remains relatively constant while the proportion of incorporated urea changes from 10 to 40 % by weight. In all the cases, it remains below 2% by weight, and even below 1.5% by weight.
Example 3:
This example illustrates the influence of the pH on the solubility of sugars. Two products according to the invention are prepared, containing 20% by weight of urea, following the general operating procedure of Example 1, except for the reaction being carried out at 60°C and 16.8 g of a solution containing 85% H3PO4 being added to the first product and no H3P0^ being added to the second product. The initial pH values are 2.5 and 4.4 respectively.
The results are summarized in Table III below.
It is seen that the solubility of sugars depends on the pH. It increases with the degree of acidification. The operation will therefore be carried out, preferably, in the lower part of the pH range shown, that is to say below 3.
It is self-evident that the embodiments described are only examples and that it would be possible to modify them, particularly by substituting equivalent techniques, without departing from the scope of the in-vention thereby.
TABLE II
UREA 10% (UREA/HEXOSES : 0.23)
UREA 102 (UREA/HEXOSES : 0.46)
t
% glu
X
g
% free urea
X
u
% glu
X
g
% free urea
X
u
0
18.90
0
8.75
0
17.16
0
.92
0
9.64
0.49
1.34
0.85
3.81
0.78
1.37
0.91
9.90
0.48
1.39
0.84
4.04
0.76
1.45
0.91
45
8.86
0.53
1.26
0.86
4.11
0.76
1.43
0.91
1 h
8.5 (est.)
0.55
1.13
0.87
4.14
0.76
1.07
0.93
2 h
8.13
0.57
1.09
0.88
3.72
0.78
1.55
0.90
Xg : Proportion of glucose consumption : (So-St)/So
Xu : Proportion of non-free urea = U free o - U free t
U f ree o
C (£•
TABLE II (Continued)
UREA 30% (UREA/HEXOSES ; 0.70)
UREA 40% (UREA/HEXOSES : 0.93)
t
% glu
X
g
% urea
X
u
% glu
X
g
% urea
X
u
0
.71
0
21.84
0
14.48
0
26.85
0
2.08
0.87
1.41
0.94
0.95
0.93
1.23
0.95
45
1 h
2.30
0.85
1.23
0.94
0.68
0.95
1.22
0.95
2 h
2.13
0.86
1.39
0.94
0.64
0.96
1.05
0.96
Xg : Proportion of glucose consumption : (So-St)/So
X^ : Proportion of non-free urea = U free o - U free t
U free o
C 0
O vJ
TABLE III
pH : 2.5
pH : 4.4
Glucose % by wei ght
X % 9
Free urea % by wei ght
X 7. u
Glucose % by weight
X % 9
Free urea % by weight x •/.
u t = 0
17.16
0
.92
0
17.98
0
16.67
0
4.71
0.73
1.39
0.91
13.96
0.22
1.52
0.91
4.08
0.76
1 .36
0.91
14.84
0.17
1 .43
0.91
45
4.22
0.76
1.46
0.91
.07
0.16
1.50
0.91
1 h
4.63
0.73
1.42
0.91
13.84
0.23
1.50
0.91
2 h
3.64
0.79
1.41
0.91
14.34
0.20
1.56
0.91
homogeneous Liquid presence of a precipitate/determination on supernatant liquid
» ..y
Claims (12)
1. A product for feeding ruminants which is formed by reaction of urea with a lactose-containing material whose lactose has previously been at least partially hydrolyzed to glucose and galactose, said product containing less than 2% by weight of freeurea.
2. The product as claimed in claim 1 which contains 5 to 40% by weight of urea.
3. The product as claimed in claim 2, which contains 15 to 30?o by weight of urea.
4. The product as claimed in claim 1 wherein the lactose-containing material is a lactoserum permeate or a lactose-containing liquor, whose lactose has been previously at least partially hydrolyzed to glucose and galactose.
5. The product as claimed in claim 1, wherein the lactose-containing material has been at least partially hydrolyzed with the aid of immobilized lactase or ^^-galactosidase.
6. The product as claimed in claim 1, which additionally contains phosphoric acid.
7. The product as claimed in claim 6, wherein the proportion of H^PO^ is between 2 and 7% by weight relative to the total weight of the product.
8. A process for preparing a product for feeding ruminants, which process comprises the following steps : dissolving urea in a lactose-containing material whose lactose is at least partially hydrolyzed, at a temperature of 50-90°C, with agitation ; adjusting the pH, if necessary, in the range from 2.5 to 4.5 by adding acid to the solution obtained ; and heating the resultant acid solution at a temperature of 5Q-90°C for a time sufficient for the free urea content of the resulting product not to exceed 2% by weight.
9. The process as claimed in claim 8, wherein the adjustment of the pH is produced by adding phosphoric acid. 206648 -10-
10. The product as claimed in claim 1, substantially as herein described and exemplified.
11. The process as claimed in claim 8, substantially as herein described and exemplified.
12. A product for feeding ruminants, whenever prepared by a process as claimed in any one of claims 8, 9 or 11. CORNING GLASSWORKS and la Societe SANDERS, By Their Attorneys HENRY,HUGHES LIMITED BY:
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8222018A FR2538680B1 (en) | 1982-12-29 | 1982-12-29 | PRODUCTS BASED ON UREA COMPLEXES AND HYDROLISTED LACTOSE MATERIALS, THEIR PREPARATION AND THEIR USE FOR FEEDING RUMINANTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NZ206648A true NZ206648A (en) | 1986-09-10 |
Family
ID=9280645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ206648A NZ206648A (en) | 1982-12-29 | 1983-12-20 | Ruminant feed formed by reacting urea with lactose-containing material |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0113288B1 (en) |
| AU (1) | AU558260B2 (en) |
| CA (1) | CA1219489A (en) |
| DE (1) | DE3367507D1 (en) |
| DK (1) | DK606383A (en) |
| ES (1) | ES528488A0 (en) |
| FR (1) | FR2538680B1 (en) |
| IE (1) | IE54869B1 (en) |
| IL (1) | IL70439A (en) |
| NZ (1) | NZ206648A (en) |
| PT (1) | PT77840B (en) |
| ZA (1) | ZA839637B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2556566B1 (en) * | 1983-12-15 | 1988-04-22 | Corning Glass Works | NOVEL PROCESS FOR THE PREPARATION OF A GLYCOSYL-UREA-BASED FOOD SUPPLEMENT FOR RUMINANTS AND FOOD SUPPLEMENT OBTAINED |
| US20090258124A1 (en) * | 2008-04-09 | 2009-10-15 | Land O'lakes Purina Feed Llc | Hydrolyzed liquid sweetener for livestock |
| WO2019130264A1 (en) * | 2017-12-29 | 2019-07-04 | Euroserum | Carbohydrate composition, process for producing the composition and feed and food products comprising such a composition |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612497A (en) * | 1948-01-24 | 1952-09-30 | Hendrik W Meijer | Process for manufacture of hexose ureides and thioureides |
| US2681858A (en) * | 1950-11-30 | 1954-06-22 | Nat Dairy Res Lab Inc | Conversion of lactose to glucose and galactose |
| BE806971A (en) * | 1973-11-06 | 1974-05-06 | Ulrich Walter | COMPOSITION AND METHOD OF PREPARATION OF FEEDS FOR Ruminants ON THE BASIS OF NON-PROTEIN NITROGEN |
| US4066750A (en) * | 1976-08-02 | 1978-01-03 | Astra Chemical Products Ab | Lactosyl substituted ureides in ruminant feedstuff |
| FR2466958B1 (en) * | 1979-10-15 | 1986-01-31 | Normandie Laitiere | STABLE SUSPENSIONS CONTAINING IN PARTICULAR UREIDES, SUGARS AND LACTOSYL-UREE CRYSTALS |
-
1982
- 1982-12-29 FR FR8222018A patent/FR2538680B1/en not_active Expired
-
1983
- 1983-12-13 IL IL70439A patent/IL70439A/en unknown
- 1983-12-16 PT PT77840A patent/PT77840B/en not_active IP Right Cessation
- 1983-12-20 NZ NZ206648A patent/NZ206648A/en unknown
- 1983-12-22 DE DE8383402509T patent/DE3367507D1/en not_active Expired
- 1983-12-22 EP EP83402509A patent/EP0113288B1/en not_active Expired
- 1983-12-22 IE IE3027/83A patent/IE54869B1/en unknown
- 1983-12-23 AU AU22845/83A patent/AU558260B2/en not_active Ceased
- 1983-12-28 ZA ZA839637A patent/ZA839637B/en unknown
- 1983-12-28 ES ES528488A patent/ES528488A0/en active Granted
- 1983-12-28 CA CA000444326A patent/CA1219489A/en not_active Expired
- 1983-12-29 DK DK606383A patent/DK606383A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CA1219489A (en) | 1987-03-24 |
| PT77840A (en) | 1984-01-01 |
| DE3367507D1 (en) | 1987-01-02 |
| FR2538680A1 (en) | 1984-07-06 |
| IE54869B1 (en) | 1990-02-28 |
| FR2538680B1 (en) | 1985-06-28 |
| EP0113288B1 (en) | 1986-11-12 |
| PT77840B (en) | 1986-03-26 |
| ES8406854A1 (en) | 1984-09-01 |
| AU558260B2 (en) | 1987-01-22 |
| DK606383A (en) | 1984-06-30 |
| ZA839637B (en) | 1984-09-26 |
| AU2284583A (en) | 1984-07-05 |
| DK606383D0 (en) | 1983-12-29 |
| IL70439A (en) | 1987-02-27 |
| IL70439A0 (en) | 1984-03-30 |
| ES528488A0 (en) | 1984-09-01 |
| IE833027L (en) | 1984-06-29 |
| EP0113288A1 (en) | 1984-07-11 |
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