CA1219489A - Products based on complexes of urea and of materials containing hydrolyzed lactose, their preparation and their use for feeding ruminants - Google Patents
Products based on complexes of urea and of materials containing hydrolyzed lactose, their preparation and their use for feeding ruminantsInfo
- Publication number
- CA1219489A CA1219489A CA000444326A CA444326A CA1219489A CA 1219489 A CA1219489 A CA 1219489A CA 000444326 A CA000444326 A CA 000444326A CA 444326 A CA444326 A CA 444326A CA 1219489 A CA1219489 A CA 1219489A
- Authority
- CA
- Canada
- Prior art keywords
- urea
- product
- lactose
- weight
- complexes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000004202 carbamide Substances 0.000 title claims abstract description 41
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 title claims abstract description 25
- 239000008101 lactose Substances 0.000 title claims abstract description 25
- 241000282849 Ruminantia Species 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 title abstract description 9
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000000047 product Substances 0.000 claims description 35
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 7
- 239000012466 permeate Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- FKWQEFWENKGUGF-VFUOTHLCSA-N [(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]urea Chemical compound NC(=O)N[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O FKWQEFWENKGUGF-VFUOTHLCSA-N 0.000 claims 2
- FKWQEFWENKGUGF-SVZMEOIVSA-N [(3r,4s,5r,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]urea Chemical compound NC(=O)NC1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O FKWQEFWENKGUGF-SVZMEOIVSA-N 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 235000011007 phosphoric acid Nutrition 0.000 claims 2
- 102100026189 Beta-galactosidase Human genes 0.000 claims 1
- 108010059881 Lactase Proteins 0.000 claims 1
- 108010005774 beta-Galactosidase Proteins 0.000 claims 1
- 125000002519 galactosyl group Chemical group C1([C@H](O)[C@@H](O)[C@@H](O)[C@H](O1)CO)* 0.000 claims 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims 1
- 229940116108 lactase Drugs 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 150000003672 ureas Chemical class 0.000 claims 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 abstract description 4
- 229930182830 galactose Natural products 0.000 abstract description 4
- 239000008103 glucose Substances 0.000 abstract description 4
- 241001465754 Metazoa Species 0.000 abstract description 2
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 abstract description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 abstract description 2
- 235000013877 carbamide Nutrition 0.000 description 35
- 239000000243 solution Substances 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 241000518994 Conta Species 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 235000000346 sugar Nutrition 0.000 description 3
- 150000008163 sugars Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229960000510 ammonia Drugs 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- -1 glycosyl ureas Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- WTEVQBCEXWBHNA-YFHOEESVSA-N neral Chemical compound CC(C)=CCC\C(C)=C/C=O WTEVQBCEXWBHNA-YFHOEESVSA-N 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 210000004767 rumen Anatomy 0.000 description 2
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- WTEVQBCEXWBHNA-UHFFFAOYSA-N Citral Natural products CC(C)=CCCC(C)=CC=O WTEVQBCEXWBHNA-UHFFFAOYSA-N 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108010046334 Urease Proteins 0.000 description 1
- KYDLAYNPAKYQJH-QKKXKWKRSA-N [(3r,4r,5s,6r)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2s,3r,4s,5r,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]urea Chemical compound O[C@@H]1[C@@H](O)C(NC(=O)N)O[C@H](CO)[C@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KYDLAYNPAKYQJH-QKKXKWKRSA-N 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- WTEVQBCEXWBHNA-JXMROGBWSA-N citral A Natural products CC(C)=CCC\C(C)=C\C=O WTEVQBCEXWBHNA-JXMROGBWSA-N 0.000 description 1
- 150000004695 complexes Chemical class 0.000 description 1
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
Abstract
Products based on complexes of urea and of materials containing hydrolyzed lactose, their preparation and their use for feeding ruminants ABSTRACT OF THE DISCLOSURE
The invention relates to animal feed.
It relates to products for feeding ruminants, which products are formed by reacting urea with a lactose-containing material whose lactose has been previously at least partially hydrolyzed to glucose and galactose.
Use by breeders.
The invention relates to animal feed.
It relates to products for feeding ruminants, which products are formed by reacting urea with a lactose-containing material whose lactose has been previously at least partially hydrolyzed to glucose and galactose.
Use by breeders.
Description
BACKGROUND OF THE INVENTION
The invention relates to produc.s based on com-plexes of urea and of materials containing hydrolyzed lactose, their preparation and their use for feeding ruminants.
DESCRIPTION OF THE PRIOR ART
It ~s ~ell known to incorporate urea in feeds for rum;nants; the quantity of urea ~hich can be incor-porated is, however, limited to a few percent because urea decomposes in the rumen of the animal, g;ving ammo-nia wh;ch ;s 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 decomposltion of ùrea to ammonia in the rumen. Lactosyl ureas tcomplexes of lactose and urea) (see U.S. Patent No. 4,267,314), in par~;cular, have thus been proposed~ These products have not, however, been employed in practice for econo-mic reasons.BRIEF SUMMARY OF THE INVENTION
The invention aims at providing new products based on complexes of urea, suitable for feeding rumi-nan~s, which offer the advantages of a high possible urea content and of allo~ing only a low proportion of free urea to remain.
The invention relates to new complex products forrned from urea and a lactose-containing material ~herein the lactose is at least partially hydrolyzed to glucose and galactose.
DETAILED DESCRIPTION
As ma~erials containing at least partiaLly hyd-rolyzed lactose it is possible to employ permeates o lactoserums or lactose-containing liquors (obtained by deproteination of lactoserums) ~hose lactose has been at Least partially hydrolyzed~ as well as the lactoserums ~hose lactose has been at least par~ially hydrolyzed~
At present, the permeatPs or the Lactose-containing l;quors with at least partially hydrolyzed lac~ose are ~,l~
-- 2 ~
preferred for economic rleasons. The materials con-tain;ng hydrolyæed lactose may or ~ay not be dem;nera-l;zed. It is preferred nowadays to employ non-dem;neral;zed materials for economic reasons~ Hydroly-sis of the lactose is carried out, pref~rabLy, by anenzymatic route, known in itself, preferably with`the aid of ;mmobilized enzymes tlactase or ~-galactos;dase).
Th;s guarantees the qual;ty of the sugars wh;ch are obtained and therefore reduces to a minimum the Ma;llard reactions and the formation of secondary products of react;on. Preferably, these new complexes contain 5 to 40 X by ~eight of urea, particularly 15 to 30 X.
Preferably~ the new products of the invention are employed in the form of concentrated liquid pro-ducts. 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 m;n;mize the costs. Nevertheless, if desir d, the said products can be dr;ed to complete dryness~
The products of the invention are easily pre- ~
pared by d;ssolving urea in the lactose-containing mat-erial conta;ning at least partially hydrolyzed lactose, prefe-rably at a temperature of 50-90C~ particularly of 60-80C, with agitation; by adjusting~ if necessary, the pH in the range from 2.5 tb 4.5, preferably below 3~ by adding acid to the solution obtained; and by h2ating the resultant ac;d solution at a temperature of 50~90C, preferably 60-80C for a time sufficient for the free urea content of the resulting product not to exceed 2X
by weight, preferably 1.5X by weight. The ease of pre-paration appears to be attributable to an enhanced reac-tiv;ty of glucose ~nd of galactose.
According to a preferred embodimerit, phosphoric acid, H3P04, is employed to regulate the pH, the said H3P04 being an advan~ageous adjuvant frequently incor~
porated ;n feeds for ruminants. The quantity of H3Po4 incorporated will usually be between 2 and 7X by weight relative to the total o~ the product according ~o the invention. The phosphoric acid can be incorporated in -- 3 ~
~he form of an aqueous solut;on conta;n;ng 85X by ue;ght of H3Po4.
The products accord;ng to the invention are feed addi~ives which are useful for preparing feeds for rumi-S nants, in particular in sranular or liquid form~ Theyenable, in fact, non~protein nitrogenous materials to be incorporated ;n the rations for ~uminants.
In comparison to lactosyl-urea, they offer a h;gher poss;ble content of ureaO greater ease of pre-paration, the absence of any crystallization and, aboveall, an extremely reduced content of free urea.
The following non-limiting examples are given ~ich a vie~ to illustrating the invention~ -This exa~ple illustrates the prepara~ion of a product according to the invention from 20X by weight of urea and a lactOserum permeate 88.5X of whose lactose has been hydrolyzed by means of immob;lized ~-galactosi-~ase. The compos;t;on and the propert;es of this per-meate containing part;ally hydrolyzed lactose ~ere as follows:
pH O~ C~ 3.86 color .......................... ..490 IU
dry extract content ............ ~. 59X
glucose --~--------~------~-~O~ 21.57X
galactose .... .................... 21.57X
residual laCtose .... ~.................. ~.~ 5.~2X
total nitrogen matter ~ 4~ 2.ûOX
~N x 6.38) resi~ual true proteins ......... .~. ~.18X
- ash ~inorgan;c salts) ~ O~ 5~10X
60 9 of urea were d;ssolYed in 300 9 of hydro-lyzed perneate heated at 80C with agitation for 5 minutes. After cool;ng to amb;ent temperature~ the pH
was adjusted to 2.5 by adding 16.8 9 of an aqueous solu-tion containing 85X by weight H3P04, and the whole ~as then heated at 80C for 2 hours. The free urea content of the product was measured at the start, after 15 min-utes and after 2 hours heating, by the urease enzyme method.
ay way of comparison, there were also prepared (i) a product A ta urea-H3P04 complex) by dissolving at 80C, w;th ag;tat;on, 24 9 of urea ;n 120 g of water, and then adjusting the pH of ~he resul~ing solution to 2 5 by adding 14.5 9 of a solution conta;ning 85Z H3P94; ~ii) a product B by dissolving at 80C, w;th ag;tation, 40 9 of urea in 239.5 9 of an aqueous solu-tion contain;ng 60X by w@ight lactose, and then adjust-1û ing the pM of ~he resultlng solution to 2.5 by add-ing 17 9 of a solution containing 85% H3P04; and (iii) a product C by dissolving at 80C, ~ith agita-t;on, 60 9 of urea ;n 300 g of a non-hydrolyzed Lactose r liquor, then adjusting the pH to 205 by adding 3901 9 of a solution containing 85% H3P04.
The produc~s A~ B and C were next heated at ~0C
for 2 hours~ the free urea content being measured at the start, after 15 minutes and after Z hours heating, as for the product of the ;nvention.
The results obtained are collated in Table I
below~
TABLE I
. .
A B C Exa~le 1 Free urea t = 0 15.14 13.5415.04 15.92 content, t = 15 m;n9.03 10~7610.37 1.37 X by ~eight t = 2 h 10.80 12~137.3 1.55 Free urea after 2 ~
in;t;al free urea~ X 60-71 79-89~9-49 8.6-10 Crystallization on 3û storage - abundant n;l
The invention relates to produc.s based on com-plexes of urea and of materials containing hydrolyzed lactose, their preparation and their use for feeding ruminants.
DESCRIPTION OF THE PRIOR ART
It ~s ~ell known to incorporate urea in feeds for rum;nants; the quantity of urea ~hich can be incor-porated is, however, limited to a few percent because urea decomposes in the rumen of the animal, g;ving ammo-nia wh;ch ;s 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 decomposltion of ùrea to ammonia in the rumen. Lactosyl ureas tcomplexes of lactose and urea) (see U.S. Patent No. 4,267,314), in par~;cular, have thus been proposed~ These products have not, however, been employed in practice for econo-mic reasons.BRIEF SUMMARY OF THE INVENTION
The invention aims at providing new products based on complexes of urea, suitable for feeding rumi-nan~s, which offer the advantages of a high possible urea content and of allo~ing only a low proportion of free urea to remain.
The invention relates to new complex products forrned from urea and a lactose-containing material ~herein the lactose is at least partially hydrolyzed to glucose and galactose.
DETAILED DESCRIPTION
As ma~erials containing at least partiaLly hyd-rolyzed lactose it is possible to employ permeates o lactoserums or lactose-containing liquors (obtained by deproteination of lactoserums) ~hose lactose has been at Least partially hydrolyzed~ as well as the lactoserums ~hose lactose has been at least par~ially hydrolyzed~
At present, the permeatPs or the Lactose-containing l;quors with at least partially hydrolyzed lac~ose are ~,l~
-- 2 ~
preferred for economic rleasons. The materials con-tain;ng hydrolyæed lactose may or ~ay not be dem;nera-l;zed. It is preferred nowadays to employ non-dem;neral;zed materials for economic reasons~ Hydroly-sis of the lactose is carried out, pref~rabLy, by anenzymatic route, known in itself, preferably with`the aid of ;mmobilized enzymes tlactase or ~-galactos;dase).
Th;s guarantees the qual;ty of the sugars wh;ch are obtained and therefore reduces to a minimum the Ma;llard reactions and the formation of secondary products of react;on. Preferably, these new complexes contain 5 to 40 X by ~eight of urea, particularly 15 to 30 X.
Preferably~ the new products of the invention are employed in the form of concentrated liquid pro-ducts. 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 m;n;mize the costs. Nevertheless, if desir d, the said products can be dr;ed to complete dryness~
The products of the invention are easily pre- ~
pared by d;ssolving urea in the lactose-containing mat-erial conta;ning at least partially hydrolyzed lactose, prefe-rably at a temperature of 50-90C~ particularly of 60-80C, with agitation; by adjusting~ if necessary, the pH in the range from 2.5 tb 4.5, preferably below 3~ by adding acid to the solution obtained; and by h2ating the resultant ac;d solution at a temperature of 50~90C, preferably 60-80C for a time sufficient for the free urea content of the resulting product not to exceed 2X
by weight, preferably 1.5X by weight. The ease of pre-paration appears to be attributable to an enhanced reac-tiv;ty of glucose ~nd of galactose.
According to a preferred embodimerit, phosphoric acid, H3P04, is employed to regulate the pH, the said H3P04 being an advan~ageous adjuvant frequently incor~
porated ;n feeds for ruminants. The quantity of H3Po4 incorporated will usually be between 2 and 7X by weight relative to the total o~ the product according ~o the invention. The phosphoric acid can be incorporated in -- 3 ~
~he form of an aqueous solut;on conta;n;ng 85X by ue;ght of H3Po4.
The products accord;ng to the invention are feed addi~ives which are useful for preparing feeds for rumi-S nants, in particular in sranular or liquid form~ Theyenable, in fact, non~protein nitrogenous materials to be incorporated ;n the rations for ~uminants.
In comparison to lactosyl-urea, they offer a h;gher poss;ble content of ureaO greater ease of pre-paration, the absence of any crystallization and, aboveall, an extremely reduced content of free urea.
The following non-limiting examples are given ~ich a vie~ to illustrating the invention~ -This exa~ple illustrates the prepara~ion of a product according to the invention from 20X by weight of urea and a lactOserum permeate 88.5X of whose lactose has been hydrolyzed by means of immob;lized ~-galactosi-~ase. The compos;t;on and the propert;es of this per-meate containing part;ally hydrolyzed lactose ~ere as follows:
pH O~ C~ 3.86 color .......................... ..490 IU
dry extract content ............ ~. 59X
glucose --~--------~------~-~O~ 21.57X
galactose .... .................... 21.57X
residual laCtose .... ~.................. ~.~ 5.~2X
total nitrogen matter ~ 4~ 2.ûOX
~N x 6.38) resi~ual true proteins ......... .~. ~.18X
- ash ~inorgan;c salts) ~ O~ 5~10X
60 9 of urea were d;ssolYed in 300 9 of hydro-lyzed perneate heated at 80C with agitation for 5 minutes. After cool;ng to amb;ent temperature~ the pH
was adjusted to 2.5 by adding 16.8 9 of an aqueous solu-tion containing 85X by weight H3P04, and the whole ~as then heated at 80C for 2 hours. The free urea content of the product was measured at the start, after 15 min-utes and after 2 hours heating, by the urease enzyme method.
ay way of comparison, there were also prepared (i) a product A ta urea-H3P04 complex) by dissolving at 80C, w;th ag;tat;on, 24 9 of urea ;n 120 g of water, and then adjusting the pH of ~he resul~ing solution to 2 5 by adding 14.5 9 of a solution conta;ning 85Z H3P94; ~ii) a product B by dissolving at 80C, w;th ag;tation, 40 9 of urea in 239.5 9 of an aqueous solu-tion contain;ng 60X by w@ight lactose, and then adjust-1û ing the pM of ~he resultlng solution to 2.5 by add-ing 17 9 of a solution containing 85% H3P04; and (iii) a product C by dissolving at 80C, ~ith agita-t;on, 60 9 of urea ;n 300 g of a non-hydrolyzed Lactose r liquor, then adjusting the pH to 205 by adding 3901 9 of a solution containing 85% H3P04.
The produc~s A~ B and C were next heated at ~0C
for 2 hours~ the free urea content being measured at the start, after 15 minutes and after Z hours heating, as for the product of the ;nvention.
The results obtained are collated in Table I
below~
TABLE I
. .
A B C Exa~le 1 Free urea t = 0 15.14 13.5415.04 15.92 content, t = 15 m;n9.03 10~7610.37 1.37 X by ~eight t = 2 h 10.80 12~137.3 1.55 Free urea after 2 ~
in;t;al free urea~ X 60-71 79-89~9-49 8.6-10 Crystallization on 3û storage - abundant n;l
2/3 by volume These results show the obvious superiority of the product of the invention frsm the points of view of the reduced free urea content and the absence of crys-tallizat;on tcompared to products B and C~. It is alsoseen that the fixation of urea takes place rapidly~
since less than 2% by weight of free urea remains after 15 minutes' reaction.
Example Z:
This example illustrates the preparation of products of the invention containing, respectively, 10, 20, 30 and 40 % by weight of urea. These products are S prepared by an operating procedure which is similar ~o that followed in Example 1 The quantity of hydrolyzed permeate was 300 9. 30, 60, 90 and 120 9 of urea, respec-tively, and 12.94, 16.80, 21.67 and 27.Z2 9 of a solution containing 85% H3P04, respectively, were employed.
The glucose and the free urea contents were measured at the start and af~er 15~ 30, 45, 60 and 120 minutes' reaction at 80C, pH: Z.5.
The results are sum~ari~ed in Table II below.
It is seen that the proport;on of residual free urea remains relatively constant while the proportion of incorporated urea changes from 10 to 40 X by weight. In all the cases, it remains below 2Z by weight, and even below 1.5X by weightO
Example 3:
This example illustrates the influence of the pH
on the solubility of sugars. Two products according to the invention are prepared, contain;ng 20% by weight of urea~ follo~ing the general operating procedure of Exam-ple 1, except for the reaction being carried out at 60C
and l6.8 9 of a solution containing 85% H3P04 being added to the first product and no H3Po4 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 solubi lity of sugars depends on the pH. It increases with the degree of acidifica-tionO The operation will therefore be carried out, pre-ferably, in the lower part of the pH range shown, that is to say below 3.
It is self-evident that the embodiments d~s-cribed are only examples and that it would be possible to modify them, particularly by substituting equivalent techniques, without departing from the scope of the ;n-vention thereby.
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~ N ~ r~J N a X O O O O O O ~ c _ ___ __ 00 oO ~O ~ I~ ~ ~ C
O ~ C~ O~ oO O CO ~q I--t 3 a~ 1~ 1~1 ~ ~1 1~ ~ L
1-1 ~ 3 ~ - ~ ~- ~- ~-m ~ . =
. ~ ~ . ~ ~_ ~
X~- O O O -O~ O O~, ~.c N O~~.o .0 N .~
~ o~ ~ tr~ ~ ~ ~
N a~ ~ 3 Il~ ~-- ~ - ~ _ _ _ ~L ~ It~ `O 1~ ~7 O` O . .
X O O O O _ O E
U~ ~, `O ~_ oo ~J ~ ~
O ~ ~ ~ ~ O ~ `O `O
. ~-3 ~s ~ ~ ~ l O __ ll u~ O u~ , ~ __
since less than 2% by weight of free urea remains after 15 minutes' reaction.
Example Z:
This example illustrates the preparation of products of the invention containing, respectively, 10, 20, 30 and 40 % by weight of urea. These products are S prepared by an operating procedure which is similar ~o that followed in Example 1 The quantity of hydrolyzed permeate was 300 9. 30, 60, 90 and 120 9 of urea, respec-tively, and 12.94, 16.80, 21.67 and 27.Z2 9 of a solution containing 85% H3P04, respectively, were employed.
The glucose and the free urea contents were measured at the start and af~er 15~ 30, 45, 60 and 120 minutes' reaction at 80C, pH: Z.5.
The results are sum~ari~ed in Table II below.
It is seen that the proport;on of residual free urea remains relatively constant while the proportion of incorporated urea changes from 10 to 40 X by weight. In all the cases, it remains below 2Z by weight, and even below 1.5X by weightO
Example 3:
This example illustrates the influence of the pH
on the solubility of sugars. Two products according to the invention are prepared, contain;ng 20% by weight of urea~ follo~ing the general operating procedure of Exam-ple 1, except for the reaction being carried out at 60C
and l6.8 9 of a solution containing 85% H3P04 being added to the first product and no H3Po4 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 solubi lity of sugars depends on the pH. It increases with the degree of acidifica-tionO The operation will therefore be carried out, pre-ferably, in the lower part of the pH range shown, that is to say below 3.
It is self-evident that the embodiments d~s-cribed are only examples and that it would be possible to modify them, particularly by substituting equivalent techniques, without departing from the scope of the ;n-vention thereby.
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o -~ -~ ~ -- --~ ô c- ::
l O X~ .. ~ ~ E
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~r a~ ~ ~ ~ o~ o ~
q: L X ~ ~ ~ J O
_ _ O O
1'- U'\ `O C o xD~ O O 0 ~0 ~ O
_ _ O O
CC
0 O ~1 ....
~ -~
-------~---99~
_ _ .
. C
.. . o~ .. o~ o X o o o o o o C
__ _ _ E
~ ~._ L>~ ~ I~ N r~. O O ~O ~ IS
D ~ ~ u~ ~ m u~ u~ a~--L~ r ~, ~-- ~ V
T _ _ _ (U L
CL ;~: N I~ ~o 1~1 O a~
~ N ~ r~J N a X O O O O O O ~ c _ ___ __ 00 oO ~O ~ I~ ~ ~ C
O ~ C~ O~ oO O CO ~q I--t 3 a~ 1~ 1~1 ~ ~1 1~ ~ L
1-1 ~ 3 ~ - ~ ~- ~- ~-m ~ . =
. ~ ~ . ~ ~_ ~
X~- O O O -O~ O O~, ~.c N O~~.o .0 N .~
~ o~ ~ tr~ ~ ~ ~
N a~ ~ 3 Il~ ~-- ~ - ~ _ _ _ ~L ~ It~ `O 1~ ~7 O` O . .
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. ~-3 ~s ~ ~ ~ l O __ ll u~ O u~ , ~ __
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A product for feeding ruminants comprising a mixture of glucosyl urea and galactosylurea.
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% by weight of urea.
4. The product as claimed in claim 1 wherein the glucosyl and galactosyl components of the urea complexes are obtained from an at least partially hydrolyzed lactoserum permeate or lactose-containing liquor.
5. The product as claimed in claim 4, wherein the lactoserum permeate or lactose-containing liquor has been at least partially hydrolyzed with the aid of immobilized lactase or .beta.-galactosidase.
6. The product as claimed in claim 1, which contains less than 2% by weight of free urea.
7. The product as claimed in claim 1, which additionally contains phosphoric acid.
8. The product as claimed in claim 7, wherein the proportion of H3PO4 is between 2 and 7% by weight relative to the total weight of the product.
9. A process for preparing a product for feeding ruminants, which process comprises:
a) dissolving urea in an at least partially hydrolyzed lactose-containing solution at a temperature of 50-90°C, with agitation;
b) adjusting the pH of the solution to within the range of 2.5 to 4.5 by adding acid; and c) heating the resultant acid solution at a temperature of 50-90°C for a time sufficient for the free urea content of the resulting mixture of glucosyl urea and galactosyl-urea product not to exceed 2% by weight.
a) dissolving urea in an at least partially hydrolyzed lactose-containing solution at a temperature of 50-90°C, with agitation;
b) adjusting the pH of the solution to within the range of 2.5 to 4.5 by adding acid; and c) heating the resultant acid solution at a temperature of 50-90°C for a time sufficient for the free urea content of the resulting mixture of glucosyl urea and galactosyl-urea product not to exceed 2% by weight.
Applications Claiming Priority (2)
| 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 |
| FR8222018 | 1982-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1219489A true CA1219489A (en) | 1987-03-24 |
Family
ID=9280645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000444326A Expired CA1219489A (en) | 1982-12-29 | 1983-12-28 | Products based on complexes of urea and of materials containing hydrolyzed lactose, their preparation and their use for feeding ruminants |
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) | ES8406854A1 (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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150030719A1 (en) * | 2008-04-09 | 2015-01-29 | Purina Animal Nutrition Llc | Hydrolized liquid sweetener for livestock |
Families Citing this family (2)
| 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 |
| EP3731655A1 (en) * | 2017-12-29 | 2020-11-04 | 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 EP EP83402509A patent/EP0113288B1/en not_active Expired
- 1983-12-22 DE DE8383402509T patent/DE3367507D1/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/ES8406854A1/en not_active Expired
- 1983-12-28 CA CA000444326A patent/CA1219489A/en not_active Expired
- 1983-12-29 DK DK606383A patent/DK606383A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150030719A1 (en) * | 2008-04-09 | 2015-01-29 | Purina Animal Nutrition Llc | Hydrolized liquid sweetener for livestock |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3367507D1 (en) | 1987-01-02 |
| IE54869B1 (en) | 1990-02-28 |
| IL70439A (en) | 1987-02-27 |
| FR2538680B1 (en) | 1985-06-28 |
| ES528488A0 (en) | 1984-09-01 |
| PT77840A (en) | 1984-01-01 |
| IE833027L (en) | 1984-06-29 |
| AU2284583A (en) | 1984-07-05 |
| ZA839637B (en) | 1984-09-26 |
| DK606383A (en) | 1984-06-30 |
| NZ206648A (en) | 1986-09-10 |
| AU558260B2 (en) | 1987-01-22 |
| EP0113288B1 (en) | 1986-11-12 |
| ES8406854A1 (en) | 1984-09-01 |
| EP0113288A1 (en) | 1984-07-11 |
| IL70439A0 (en) | 1984-03-30 |
| PT77840B (en) | 1986-03-26 |
| FR2538680A1 (en) | 1984-07-06 |
| DK606383D0 (en) | 1983-12-29 |
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