Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
  • B01J2/003—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic followed by coating of the granules
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
  • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
  • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
  • A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23K—FODDER
  • A23K30/00—Processes specially adapted for preservation of materials in order to produce animal feeding-stuffs
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23K—FODDER
  • A23K30/00—Processes specially adapted for preservation of materials in order to produce animal feeding-stuffs
  • A23K30/10—Processes specially adapted for preservation of materials in order to produce animal feeding-stuffs of green fodder
  • A23K30/15—Processes specially adapted for preservation of materials in order to produce animal feeding-stuffs of green fodder using chemicals or microorganisms for ensilaging
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23K—FODDER
  • A23K40/00—Shaping or working-up of animal feeding-stuffs
  • A23K40/30—Shaping or working-up of animal feeding-stuffs by encapsulating; by coating
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
  • A23P10/00—Shaping or working of foodstuffs characterised by the products
  • A23P10/30—Encapsulation of particles, e.g. foodstuff additives
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
  • B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic

Definitions

• the present invention relates to a free-flowing granulate, consisting of a core and a shell, the core material containing an organic acid and a porous carrier and the shell having a water-soluble or water-swellable covering agent.
• the invention further relates to a process for the production of free-flowing, odor-reduced granules based on organic acids, preferably formic, acetic and / or propionic acid, and the use of the granules for the treatment of food and feed, and for use in silages.
• organic acids preferably formic, acetic and / or propionic acid
• liquid organic acids can only be incorporated in concentrated form, for example in animal feed, by considerable technical effort.
• DE 28 33 727 AI discloses a particulate, fungicidal material which contains propionic acid and a carrier material. With this material, the number of mold colonies in stored agricultural harvest products should not increase even if the incubation period is several days. However, it has been shown that such material itself is not stable in storage (loss of acid) and that the maximum amount of propionic acid which can be applied depends heavily on the carrier material used. In addition, this material gives off unpleasant odors due to the volatilization of the propionic acid.
• the present invention was therefore based on the object of providing free-flowing, low-odor granules for the treatment of food and animal feed, with which the handling properties for the user are significantly improved.
• the focus here was on the production of a "solid organic acid" in the form of an adsorbate, which should differ essentially from simple drinking products in that by (a) allowing an acid fraction> 30% by weight in the solid, independent of the carrier material, and thus carrying the highest possible "active ingredient fraction” and (b) limiting the leakage of the organic acid from the adsorbate to a minimum and thus reducing the " Active ingredient content "retained.
• the powdery end product should have good storage, flow and processing properties.
• a granulate consisting of a core and a shell, the core material containing an organic acid and a porous carrier and the shell having a cover agent which is water-soluble or water-swellable at 20 ° C.
• the granulate according to the invention has the advantage that a reduction in the strong pungent acid smell is achieved and the acid component, despite the solid formulation, is readily and quickly released from the solid powder.
• the invention further relates to a process for the production of granules containing organic acids and porous carrier materials, which is characterized in that the carrier material is soaked with the liquid organic acid, then with a covering agent which is obtained at room temperature stares, is agglomerated, the covering agent being added to such an extent that the resulting granules are coated and, if appropriate, further odorization is carried out by adding fragrances and, if appropriate, the pourability of the agglomerates is ensured by powdering with a finely dispersed powdering agent.
• Liquid organic acid is understood to mean acids or acid mixtures which are liquid at the processing temperatures or which are converted into liquids by increasing the temperature or dissolving or dispersing them in liquids.
• the granules according to the invention have a powdering agent on the surface of the casing.
• the core preferably contains 30-90% by weight, in particular 50-80% by weight, of organic acid.
• the organic acid preferably consists of one or more Ci-Cg-mono- or di-carboxylic acids, especially formic, acetic and / or propionic acid.
• Porous, organic or inorganic carrier materials can be used as carriers, the particle sizes of which are between 1 ⁇ m and 1,000 ⁇ m, preferably between 5 ⁇ m and 100 ⁇ m.
• the core can also contain other solids, for example solids suitable as feed additives, such as Ca propionate.
• Water-soluble polymers, organic acids, their salts or low-melting inorganic salts can be used as covering agents.
• Cereal bran, silicates, pearlite or silica are preferably used as carriers in proportions between 10% by weight and 70% by weight, preferably 20 to 40% by weight, based on the weight of the core.
• Polyethylene glycols, polyvinylpyrrolidones or organic acids and their salts from C3 to C14, preferably C3 to C6, in particular citric acid, fumaric acid, succinic acid, adipic acid, benzoic acid and their salts or amino acids and their salts, are preferably used as covering agents.
• the carrier material is placed in a mixer, soaked with the organic acid and then agglomerated and coated with the covering agent.
• the loose and impregnated carrier particles are mixed with the covering agent (binding liquid), the binding liquid generally consisting of a highly concentrated solution or melt of water-soluble or water-swellable substances which solidify at room temperature (20 ° C.).
• This binding liquid is preferably applied to the impregnated carrier material particles in the heated state and mixed with them.
• the binding liquids solidify on the surface of the impregnated carrier particles. Appropriate operating parameters of the mixer result in agglomeration of different particles into larger granules.
• the size of the granules can be set by means of process parameters during mixing and also by subsequent sieving or grinding.
• the granules preferably have an average diameter of less than 3 mm, in particular 0.3-1.3 mm.
• residual water may be present in the binding liquid used for coating and agglomerating. After the agglomeration process, this water can be bound by a powdering process with a dry and finely dispersed powder. This powdering process also prevents the agglomerates from sticking later and, for example, additionally applies the salt of the organic acid used (for example sodium or calcium propionate) to the agglomerate.
• a fragrance or flavoring agent is added, such as, for example, vanillin, citral or fructin, as a result of which an additional odor-masking effect and, for example, attracting animal feed intake can be achieved.
• organic or inorganic porous carriers are suitable for the production of such free-flowing, odor-reduced agglomerates, provided that they are acid-resistant.
• examples are cereal bran, perlite, clay materials, silicates and silicic acids, preference being given to the inorganic carriers, since their material properties can be better controlled.
• Preferred binding liquids are water-soluble or water-swellable substances that solidify at room temperature. As a result, there is no need for a subsequent drying step in which, in addition to a solvent or the additional water, in some cases. the organic acid was evaporated.
• Particularly suitable covering agents (binding liquids) for the agglomeration process and for coating are those which have a softening temperature of over 30 ° C., preferably over 60 ° C., in order to prevent deformation of the agglomerates at a higher storage temperature. It is preferred to use cover agents which, moreover, do not counteract the pH-lowering action of the adsorbed organic acid or, if appropriate, support or strengthen it.
• binding liquids For example, highly concentrated, heated sugar solutions or alkali / alkaline earth metal / formate / acetate / propionate solutions are suitable as binding liquids.
• the final watering step allows their residual water content to be absorbed.
• Low melting polyethylene glycols such as PEG 4000, melts of citric acid, adipic acid, fumaric acid or benzoic acid or their salts, highly concentrated solutions of amino acids or mixtures of these acids are preferably suitable as binary liquids. 5-80% binding liquid is used, but preferably 10 to 25% by weight, based on the weight of the granulate.
• suitable powdering agents are themselves finely dispersed, ground organic acids or their salts, for example Na formate, and also inorganic salts or Aerosil. ⁇ 10%, preferably between 0.5 and 5% by weight, of the powdering agents are added.
• the porous carrier is placed in the mixer, for example, in an Eichrich mixer and soaked with the organic acid at low energy inputs.
• the procedure can also be such that the liquid is placed in the mixer and the carrier 5 is metered in. In this case, higher energy inputs must be used.
• the viscosity of the binding liquid should be adjusted by an appropriate temperature selection in such a way that it is below 1,000 mPas, preferably in the range ⁇ 100 mPas, in order to spray the binding fluids.
• the proportion of these fragrances can be ⁇ 1% by weight, preferably from 0.05 to 0.5% by weight, based on the granules.
• the agglomerates produced in this way are low in dust, reduce odor and their organic acid content is
• the granules according to the invention are suitable for the treatment of food and feed, and for use in silages.
• Food and animal feed are to be understood in particular as crop products such as hay, silage, moist cereals, legumes or cereal fruits, but also milk exchange, liquid, mixed and mineral feed, fish silages or fish meal.
• the granules according to the invention can also contain other additives, such as minerals, vitamins, antibiotics or protein additives. Examples
• 100 g of wheat bran are placed in a household mixer and soaked in 100 g of formic acid.
• the acid is readily absorbed; the product shows a cohesive behavior, but can be easily divided. It has a strong smell of formic acid.
• Sipernat ® roch ⁇ disperse silica, Fa. Degussa
• an acid mixture consisting of equal parts of formic acid and propionic acid, soaked.
• the acid mixture is readily absorbed; a loose, free-flowing product is created.
• the product has a pungent - smelly formic acid / propionic acid smell.
• Example 2 Analogously to Example 1, 100 g of pearlite are introduced and soaked in formic acid. The acid is readily absorbed, but the product tends to stick and smells strongly of formic acid.
• Example 2 Analogously to Example 2 were charged with 400 g of Sipernat ® in an Eirich mixer and impregnated with 1.100 g of formic acid; the ants' acidity is then 71%. 260 g of citric acid melt are injected into the mixing chamber at 170 ° C. as a binding liquid from a heated storage container through a two-component nozzle. The resulting agglomerates are powdered with 44 g Sipernat ® and 8 g vanillin. The total acidity is * 74%. The resulting agglomerates are significantly reduced in the smell of formic acid.
• Powdered Sipernat ® and 24 g vanillin The total acidity is * 74 ..
• the resulting agglomerates are significantly reduced in smell and easy to pour.

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Polymers & Plastics (AREA)
• Food Science & Technology (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Zoology (AREA)
• Organic Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Animal Husbandry (AREA)
• Microbiology (AREA)
• Health & Medical Sciences (AREA)
• Nutrition Science (AREA)
• Fodder In General (AREA)
• Fats And Perfumes (AREA)
• Glanulating (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
• Detergent Compositions (AREA)
• General Preparation And Processing Of Foods (AREA)
• Cereal-Derived Products (AREA)
• Medicinal Preparation (AREA)
• Manufacturing Of Micro-Capsules (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
• Solid-Sorbent Or Filter-Aiding Compositions (AREA)
• Paints Or Removers (AREA)

Priority Applications (11)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (19)

Cited By (4)

Families Citing this family (8)

Citations (8)

Family Cites Families (5)

• 1995
  • 1995-08-30 DE DE19531782A patent/DE19531782A1/de not_active Withdrawn
• 1996
  • 1996-08-26 CN CN96196578A patent/CN1193892A/zh active Pending
  • 1996-08-26 WO PCT/EP1996/003757 patent/WO1997007687A1/de not_active Application Discontinuation
  • 1996-08-26 HU HU9802322A patent/HUP9802322A3/hu unknown
  • 1996-08-26 AU AU69286/96A patent/AU706207B2/en not_active Ceased
  • 1996-08-26 CZ CZ98499A patent/CZ49998A3/cs unknown
  • 1996-08-26 GE GEAP19964214A patent/GEP20002062B/en unknown
  • 1996-08-26 BR BR9609990A patent/BR9609990A/pt not_active Application Discontinuation
  • 1996-08-26 NZ NZ316933A patent/NZ316933A/xx unknown
  • 1996-08-26 PL PL96325169A patent/PL325169A1/xx unknown
  • 1996-08-26 KR KR1019980701502A patent/KR19990044266A/ko not_active Application Discontinuation
  • 1996-08-26 CA CA002227282A patent/CA2227282A1/en not_active Abandoned
  • 1996-08-26 EP EP96930104A patent/EP0847243A1/de not_active Withdrawn
  • 1996-08-26 EA EA199800229A patent/EA000874B1/ru not_active IP Right Cessation
  • 1996-08-26 IL IL12235596A patent/IL122355A/xx not_active IP Right Cessation
  • 1996-08-26 TR TR1998/00344T patent/TR199800344T1/xx unknown
  • 1996-08-26 JP JP9509846A patent/JPH11511969A/ja active Pending
  • 1996-08-26 SK SK228-98A patent/SK22898A3/sk unknown
• 1998
  • 1998-02-27 NO NO980861A patent/NO980861L/no not_active Application Discontinuation

Patent Citations (8)

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