Patent Description:
<CIT> discloses process for preparing an emulsified powder by mixing an oil-soluble substance, a modified starch and, if desired, a vegetable gum with water to prepare an emulsion, followed by drying. As the obtained powder is reduced in degradation due to impact applied thereto during tabletting, it is reduced in the exudation of oil.

<CIT> discloses compositions containing a fat soluble substance in a glassy carbohydrate matrix having maltose or a mixture of low-molecular weight carbohydrates, and, optionally, a high-molecular weight carbohydrate. The compositions can be used for multivitamin tablets, hard gelatin capsules, dry food and feed compositions and for enriching sugar.

<CIT> discloses easily handleable powder having high stability and water dispersibility, by heating a solution containing a sugar composition of maltose and an oligosaccharide at a specific concentration to effect the complete dissolution, cooling the solution, adding and emulsifying lecithin and vitamin A in the solution, and pulverizing the emulsion.

The lipophilic health ingredient is Vitamin A acetate and the corresponding formulation having a Vitamin A acetate content of at least <NUM> weight-%, based on the total weight of the formulation.

The present invention is directed to a formulation of a lipophilic health ingredient as defined in the claims comprising a lipophilic health ingredient and a protective colloid, wherein said protective colloid is a modified food starch, characterized in that the formulation has a residual moisture content ≤ <NUM> weight-%, preferably it has a residual moisture content ≤ <NUM> weight-%, more preferably it has a residual moisture content ≤ <NUM> weight-%, based on the total weight of the formulation.

Preferably the formulations according to the present invention have a minimum residual moisture content ≥ <NUM> weight-%, more preferably they have a minimum residual moisture content ≥ <NUM> weight-%, based on the total weight of the formulation.

Even more preferred are formulations having a residual moisture content in the range of from <NUM> to <NUM> weight-%, in the range of from <NUM> to <NUM> weight-%, in the range of from <NUM> to <NUM> weight-%, most preferred are those formulations having a residual moisture content in the range of from <NUM> to <NUM> weight-%, based on the total weight of the formulation.

The residual moisture content is determined by the following procedure:.

Alternatively a Karl-Fischer titration may be carried out to determine the residual moisture content.

In a further aspect of the disclosure the formulations as described above show additionally to the low moisture content an extrusion loss of said lipophilic health ingredient of ≤ <NUM>%, preferably of ≤ <NUM>%, more preferably of ≤ <NUM>%, most preferably of ≤ <NUM>% (i.e. an extrusion loss in the range of from <NUM> to <NUM>%) when pressed to tablets, i.e. the amount of said lipophilic health ingredient present at the surface of tablets of these formulations is ≤ <NUM> weight-%, preferably ≤ <NUM> weight-%, more preferably < <NUM> weight-%, most preferably < <NUM> weight-%, based on the total weight of the lipophilic health ingredient in the formulation. Lipophilic health ingredients present at the surface of such a tablet is a great disadvantage since the lipophilic health ingredient is no longer protected against oxidation by the protective colloid. Extrusion losses in the range of from <NUM> to <NUM> weight-% are quite accepted for most purposes.

The extrusion loss is a relevant parameter for the shelf life of (pharmaceutical) tablets, i.e. a parameter for the stability of the fat-soluble active ingredient in the (pharmaceutical) tablets. If the extrusion loss is smaller, the shelf life of the tablets is longer.

The lipophilic health ingredient is Vitamin A acetate and the corresponding formulation having a Vitamin A acetate content of at least <NUM> weight-%, based on the total weight of the formulation. Such formulations usually have a Vitamin A activity in the range of from <NUM> to <NUM> International Units.

The amount of the lipophilic health ingredient in the formulations according to the present invention is in the range of from <NUM> to <NUM> weight-%, based on the total weight of the formulation.

The protective colloids in the formulations of the present disclosure are modified starches or mixtures of modified starches with sugars such as sucrose. Preferably the weight ratio between the modified starch and the sugar varies in the range of from (<NUM>-<NUM>) to (<NUM>-<NUM>), more preferably it varies in the range of from <NUM> to (<NUM>-<NUM>).

In contrast to starches (non-modified starches) which are hydrophilic and therefore do not have emulsifying capacities, modified starches do have emulsifying capacities.

Modified starches are e.g. made from starches substituted by known chemical methods with hydrophobic moieties. For example starch may be treated with cyclic dicarboxylic acid anhydrides such as succinic anhydrides, substituted with a hydrocarbon chain (see <NPL>). A particularly preferred modified starch of this disclosure has the following formula (I)
<CHM>
wherein St is a starch, R is an alkylene radical and R' is a hydrophobic group. Preferably R is a lower alkylene radical such as dimethylene or trimethylene. R' may be an alkyl or alkenyl group, preferably having <NUM> to <NUM> carbon atoms. A preferred compound of formula (I) is an "OSA-starch" (starch sodium octenyl succinate). The degree of substitution, i.e. the number of esterified hydroxyl groups to the number of free non-esterified hydroxyl groups usually varies in a range of from <NUM>% to <NUM>%, preferably in a range of from <NUM>% to <NUM>%, more preferably in a range of from <NUM>% to <NUM>%.

The term "OSA-starch" denotes any starch (from any natural source such as corn, waxy maize, waxy corn, wheat, tapioca and potatoe or synthesized) that was treated with octenyl succinic anhydride (OSA). The degree of substitution, i.e. the number of hydroxyl groups esterified with OSA to the number of free non-esterified hydroxyl groups usually varies in a range of from <NUM>% to <NUM>%, preferably in a range of from <NUM>% to <NUM>%, more preferably in a range of from <NUM>% to <NUM>%. OSA-starches are also known under the expression "modified food starch".

These OSA-starches may contain further hydrocolloids, such as starch, maltodextrin, carbohydrates, gum, corn syrup etc. and optionally any typical emulsifier (as co-emulsifier), such as mono- and diglycerides of fatty acids, polyglycerol esters of fatty acids, lecithins, sorbitan monostearate, and plant fibre or sugar.

The term "OSA-starches" encompasses also such starches that are commercially available e.g. from National Starch under the tradenames HiCap <NUM>, Capsul, Capsul HS, Purity Gum <NUM>, UNI-PURE, HYLON VII; from Roquette Frères; from CereStar under the tradename C*EmCap or from Tate & Lyle.

It is also possible to use mixtures of modified starches, especially mixtures of OSA-starches. The weight-ratios of a mixture of two different OSA-starches may vary in a range of from <NUM> : <NUM> to <NUM> : <NUM>. Preferably a mixture of HiCap <NUM> and Capsul HS is used. More preferably a mixture of <NUM> to <NUM> weight-% of HiCap <NUM> and <NUM> to <NUM> weight-% of Capsul HS is used. Most preferably a mixture of <NUM> weight-% of HiCap <NUM> and <NUM> weight-% of Capsul HS is used.

The terms "modified starches" and "OSA-starches" encompass further also modified starches/OSA-starches that were partly hydrolysed enzymatically, e.g. by glycosylases (EC <NUM>; see http://www. uk/iubmb/enzyme/EC3. <NUM>/) or hydrolases, as well as to modified starches/OSA-starches that were partly hydrolysed chemically by know methods. The terms "modified starches" and "OSA-starches" encompass also modified starches/OSA-starches that were first partly hydrolysed enzymatically and afterwards additionally hydrolysed chemically. Alternatively it may also be possible to first hydrolyse starch (either enzymatically or chemically or both) and then to treat this partly hydrolysed starch with cyclic dicarboxylic acid anhydrides such as succinic anhydrides, substituted with a hydrocarbon chain, preferably to treat it with octenyl succinic anhydride.

The enzymatical hydrolysis is conventionally carried out at a temperature of from about <NUM> to about < <NUM>, preferably at a temperature of from about <NUM> to about <NUM>, more preferably at a temperature of from about <NUM> to about <NUM>.

The glycosylases/hydrolases can be from fruit, animal origin, bacteria or fungi. The glycolase/hydrolase may have endo-activity and/or exo-activity. Therefore, enzyme preparations of endo- and exo-glycosylases/-hydrolases or any of their mixtures may be used. Usually the glycosylases/hydrolases show also unknown side activities, but which are not critical for the manufacture of the desired product.

Examples of glycosylases are the commercially available enzyme preparations from the suppliers Novozymes, Genencor, AB-Enzymes, DSM Food Specialities, Amano, etc..

Preferably the hydrolases are α-amylases, glucoamylases, β-amylases or debranching enzymes such as isoamylases and pullulanases.

The glycosylase/hydrolase is added to provide a concentration of from about <NUM> to about <NUM> weight-%, preferably of from about <NUM> to about <NUM> weight-%, based on the dry weight of the modified starch/OSA-starch. Preferably the enzyme is added at once. The enzymatic hydrolysis may also be carried out stepwise. For instance, the glycosylase/hydrolase or a mixture of glycosylases/hydrolases is added to the incubation batch in an amount of e.g. <NUM> % whereupon, e.g. after <NUM> to <NUM> minutes (at a temperature of <NUM>) further glycosylase/hydrolase or a mixture of glycosylases/hydrolases which may by the same or different from the first added glycosylase/hydrolase or mixture of glycosylases/hydrolases is added, e.g. in an amount of <NUM>% whereupon the incubation batch is hydrolysed at <NUM> for <NUM> minutes. Using this procedure, starting modified starches/OSA-starches having a degree of hydrolysis of approximately zero can be used.

The duration of hydrolysis may vary between about a few seconds and about <NUM> minutes.

The exact duration of the enzymatic treatment may be determined in an empirical way with respect to the desired properties of the modified starch/OSA-starch, such as emulsifying stability, emulsifying capacity, droplet size of the emulsion, depending strongly on parameters like enzyme activities, or composition of the substrate. Alternatively it may be determined by measuring the osmolality (<NPL>).

The inactivation of the glycosylase/hydrolase is suitably achieved by heat denaturation, e.g. by heating of the incubation batch to about <NUM> to <NUM> for <NUM> to <NUM> minutes, especially for <NUM> to <NUM> minutes.

Preferably the amount of the protective colloid in the formulations according to the present invention is in the range of from <NUM> to <NUM> weight-%, preferably in the range of from <NUM> to <NUM> weight-%, more preferably in the range of from <NUM> to <NUM> weight-%, based on the total weight of the formulation.

If further ingredients (see below) such as fat-soluble excipient(s) and/or adjuvant(s), water-soluble excipient(s) and/or adjuvant(s), antioxidants (preferably present in an amount of from <NUM>-<NUM> weight-%, based on the total weight of the formulation), emulsifiers (preferably present in an amount of from <NUM>-<NUM> weight-%, based on the total weight of the formulation) or in case of beadlets (manufactured by a powder-catch process) coatings of e.g. corn starch (present in an amount of from <NUM>-<NUM> weight-%, preferably in an amount of from <NUM>-<NUM> weight-%, based on the total weight of the formulation) are present, the amount of the protective colloid may be correspondingly lower.

The formulations according to the present invention may further contain one or more water-soluble excipient(s) and/or adjuvant(s), one or more fat-soluble excipient(s) and/or adjuvant(s), one or more antioxidant(s) and/or one or more emulsifier(s).

Examples of water-soluble excipients and/or adjuvants are monosaccharides, disaccharides, oligosaccharides and polysaccharides, glycerol and water-soluble antioxidants.

The antioxidants may be water-soluble or fat-soluble. Preferably they are antioxidants that are suitable for the human consumption, i.e. so-called "food antioxidants" - antioxidants suitable for food.

More preferably the antioxidant is selected from the group consisting of tocopherols, mixed tocopherols, vitamin E, sodium ascorbate, <NUM>,<NUM>-ditertbutyl-<NUM>-methylphenol (BHT) and <NUM>-tert-butyl-<NUM>-hydroxyanisol (BHA), propyl gallate, rosemary extract, nordihydroguiaretic acid and mixtures thereof.

Even more preferably the antioxidant is selected from the group consisting of (mixed) tocopherols, BHT, BHA and mixtures thereof.

Most preferably the antioxidant is selected from the group consisting of tocopherol, BHT and BHA.

Preferably the amount of the antioxidant in the formulations according to the present invention is in the range of from <NUM> to <NUM> weight-%, based on the total weight of the formulation.

Furthermore, the formulation according to the present invention may further contain an emulsifier.

Preferably the emulsifier is selected from the group consisting of polyoxyethylen(x) sorbitan mono-C<NUM>-C<NUM>-alkan(dien/trien/pentaen) oates with x being an integer in the range of from <NUM> to <NUM> (preferably with x being <NUM>, <NUM> or <NUM>), polyoxyethylene(x) sorbitan tri- C<NUM>-C<NUM>-alkan(dien/trien/pentaen)oates with x being an integer in the range of from <NUM> to <NUM> (preferably with x being <NUM>, <NUM> or <NUM>), sugar esters, fatty acid esters, ascorbyl palmitate and mixtures thereof.

More preferably the emulsifier is selected from the group consisting of polyoxyethylene(<NUM>) sorbitan mono-laurate, polyoxyethylene(<NUM>) sorbitan mono-laurate, polyoxyethylene(<NUM>) sorbitan mono-palmitate, polyoxyethylene(<NUM>) sorbitan mono-stearate, polyoxyethylene(<NUM>) sorbitan mono-stearate, polyoxyethylene(<NUM>) sorbitan tristearate, polyoxyethylene(<NUM>) sorbitan mono-oleate, polyoxyethylene(<NUM>) sorbitan mono-oleate, polyoxyethylene(<NUM>) sorbitan tri-oleate and mixtures thereof. These emulsifiers are e.g. commercially available from Uniqema under the trade names Tween® <NUM>, Tween® <NUM>, Tween® <NUM>, Tween® <NUM>, Tween® <NUM>, Tween® <NUM>, Tween® <NUM>, Tween® <NUM> and Tween® <NUM>.

Most preferably the emulsifier is polyoxyethylene(<NUM>) sorbitan monostearate (Tween® <NUM>).

Preferably the amount of the emulsifier (with the preferences as given above) in the formulations according to the present invention is in the range of from <NUM> to <NUM> weight-%, based on the total weight of the formulation.

One of the most preferred formulations of the present invention contains.

The formulations according to the present invention are especially suitable for the manufacture of tablets of these lipophilic health ingredients with the preferences as given above.

Thus, the present invention is also directed to tablets comprising a formulation according to the present invention. The tablets may be any pharmaceutical that preferably contains Vitamin A acetate.

Preferably those tablets are multivitamin tablets and tablets comprising mineral salts and/or trace elements, as well as multivitamin tablets also containing mineral salts and/or trace elements.

Those multivitamin tablets may contain vitamin E, vitamin C, vitamin K, vitamin B1, vitamin B2, vitamin B6, vitamin B12, vitamin D, biotin, folic acid, niacin, niacin amide, pantothenic acid and/or pantothenate. Instead of these compounds also the corresponding derivatives and salts may be used.

Those mineral salts-tablets may contain calcium, phosphor, magnesium, potassium, iron, manganese, selenium, copper, chloride, molybdenum, chrome, zinc and/or iodine salts. Especially preferred is the use of a formulation according to the present invention of Vitamin A acetate for the manufacture of a tablet comprising other water- and fat-soluble vitamins such as vitamin E, vitamin C, vitamin K, vitamin B1, vitamin B2, vitamin B6, vitamin B12, vitamin D and their derivatives or salts.

Process for the manufacture of a formulation according to the present disclosure.

The process for the manufacture of a formulation of Vitamin A acetate, wherein said formulation has a residual moisture content ≤ <NUM> weight-%, based on the total weight of the formulation, comprises the following steps:.

Steps a) to f) of this process for the manufacture of the compositions of the present invention can be carried out in an according manner as disclosed for the preparation of matrix-based compositions of (fat-soluble) active ingredient and/or colorant compositions for enrichment, fortification and/or coloration of food, beverages, animal feed, cosmetics or pharmaceutical compositions, e.g. in <CIT>, <CIT>, <CIT>, <CIT>, <CIT>, <CIT>, <CIT>, <CIT> or the corresponding <CIT>, <CIT>, <CIT> and in <CIT>.

This process may be performed at industrial scale, i.e. at a scale to obtain several <NUM> to several tons of product. If the process in the plant is carried out continuously several <NUM> tons of product may be obtained.

Details of this process are discussed in the following.

In step a) preferably an aqueous solution or suspension of a modified starch (with the definition and the preferences as described above) having a dry mass content in the range of from <NUM> to <NUM> weight-%, preferably in the range of from <NUM> to <NUM> weight-%, is prepared.

Step a) is preferably carried out at a temperature in the range of from <NUM> to <NUM> and at atmospheric pressure.

During step a) other water-soluble ingredients of the final composition such as water-soluble antioxidants may also be added.

Step b) is preferably carried out at the same temperature and at the same pressure as step a).

The lipophilic health ingredient and optional fat-soluble excipients and adjuvents (e.g. emulsifiers and stabilizers) are either used as such or dissolved or suspended in an oil and/or an (organic) solvent. Most preferably the lipophilic health ingredient and optionally the fat-soluble excipients and adjuvents is/are dissolved or suspended in oil such as corn oil and/or triglycerides, especially in corn oil and/or middle chain triglycerides (MCT).

Suitable organic solvents are halogenated aliphatic hydrocarbons, aliphatic ethers, aliphatic and cyclic carbonates, aliphatic esters and cyclic esters (lactones), aliphatic and cyclic ketones, aliphatic alcohols and mixtures thereof.

Examples of halogenated aliphatic hydrocarbons are mono- or polyhalogenated linear, branched or cyclic C<NUM>- to C<NUM>-alkanes. Especially preferred examples are mono- or polychlorinated or -brominated linear, branched or cyclic C<NUM>- to C<NUM>-alkanes. More preferred are mono- or polychlorinated linear, branched or cyclic C<NUM>- to C<NUM>-alkanes. Most preferred are methylene chloride and chloroform.

Examples of aliphatic esters and cyclic esters (lactones) are ethyl acetate, isopropyl acetate and n-butyl acetate; and γ-butyrolactone.

Examples of aliphatic and cyclic ketones are acetone, diethyl ketone and isobutyl methyl ketone; and cyclopentanone and isophorone.

Examples of cyclic carbonates are especially ethylene carbonate and propylene carbonate and mixtures thereof.

Examples of aliphatic ethers are dialkyl ethers, where the alkyl moiety has <NUM> to <NUM> carbon atoms. One preferred example is dimethyl ether.

Examples of aliphatic alcohols are ethanol, iso-propanol, propanol and butanol.

Furthermore any oil (triglycerides), orange oil, limonen or the like and water can be used as a solvent.

Step b) is preferably carried out at the same temperature and at the same pressure as step a) and/or step b).

Usually the lipophilic health ingredient or the solution or dispersion thereof, respectively, is then added to the aqueous (colloidal) solution of the modified starch with stirring.

For the homogenisation conventional technologies, such as high-pressure homogenisation, high shear emulsification (rotor-stator systems), micronisation, wet milling, microchanel emulsification, membrane emulsification or ultrasonification can be applied. Other techniques are e.g. disclosed in <CIT> (especially paragraphs [<NUM>], [<NUM>], [<NUM>], [<NUM>] to [<NUM>]), <CIT> (especially paragraphs [<NUM>], [<NUM>], [<NUM>], [<NUM>], [<NUM>], [<NUM>] to [<NUM>]) and in <CIT> (especially column <NUM>, line <NUM> to column <NUM>, line <NUM>; column <NUM>, line <NUM> to <NUM>; column <NUM>, line <NUM> to column <NUM>, line <NUM>).

The so-obtained nano-emulsion/dispersion, which is an oil-in-water dispersion, can be converted after removal of the organic solvent (if present) into a solid composition, e.g. a dry powder, using any conventional technology such as spray drying, spray drying in combination with fluidised bed granulation (the latter technique commonly known as fluidised spray drying or FSD), or by a powder-catch technique (resulting in the formation of beadlets) whereby sprayed emulsion droplets are caught in a bed of an absorbent, such as starch, and subsequently dried.

The drying may be performed by any method know to the person skilled in the art to achieve the desired residual moisture content.

Preferably the drying according to step g) is carried out in a fluidized bed. This is also the preferred drying mode if the process is an industrial process.

If the process is carried out in the batch mode, the drying is preferably carried out at a temperature in the range of from <NUM>-<NUM>, preferably at a temperature in the range of from <NUM>-<NUM>, even more preferably at a temperature in the range of from <NUM>-<NUM>, most preferably at a temperature in the range of from <NUM>-<NUM>. The drying at these temperature ranges may last between <NUM> - <NUM> minutes, preferably between <NUM> - <NUM> minutes, more preferably between <NUM> - <NUM> minutes.

In a continuously carried out process step g) is more preferably carried out by drying the powder continuously in a fluidized bed with <NUM> different temperature zones. The total residence time in the fluidized bed may be from <NUM> to <NUM> hours.

Even more preferably said <NUM> different temperature zones have the following temperatures:.

The present disclosure is also directed to a formulation of a lipophilic health ingredient comprising a lipophilic health ingredient, a protective colloid comprising a modified starch and an emulsifier - independent from the residual moisture content and the extrusion loss.

Examples and preferences of the lipophilic health ingredient are already given above.

The protective colloid may be modified starch (as described above incl. the preferences) or a mixture of a modified starch and sugar (also as described above incl. the preferences).

The emulsifier is preferably selected from the group consisting of polyoxyethylen(x) sorbitan mono-C<NUM>-C<NUM>-alkan(dien/trien/pentaen) oates with x being an integer in the range of from <NUM> to <NUM> (preferably with x being <NUM>, <NUM> or <NUM>), polyoxyethylene(x) sorbitan tri- C<NUM>-C<NUM>-alkan(dien/trien/pentaen)oates with x being an integer in the range of from <NUM> to <NUM> (preferably with x being <NUM>, <NUM> or <NUM>), sugar esters, fatty acid esters, ascorbyl palmitate and mixtures thereof.

More preferably the emulsifier is selected from the group consisting of polyoxyethylene(<NUM>) sorbitan mono-laurate, polyoxyethylene(<NUM>) sorbitan mono-laurate, polyoxyethylene(<NUM>) sorbitan mono-palmitate, polyoxyethylene(<NUM>) sorbitan mono-stearate, polyoxyethylene(<NUM>) sorbitan mono-stearate, polyoxyethylene(<NUM>) sorbitan tristearate, polyoxyethylene(<NUM>) sorbitan mono-oleate, polyoxyethylene(<NUM>) sorbitan mono-oleate, polyoxyethylene(<NUM>) sorbitan tri-oleate and mixtures thereof.

Most preferably the emulsifier is polyoxyethylene(<NUM>) sorbitan monostearate.

The amounts of the single components is as already disclosed above.

Preferably such formulations also have a residual moisture content and/or an extrusion loss as disclosed above.

The present invention is now illustrated in the following examples.

<NUM> of modified food starch (Capsul HS from National Starch), <NUM> of glucose syrup (Glucidex IT <NUM> from Roquette) and <NUM> of sodium ascorbate were placed in a <NUM> double wall vessel, <NUM> of de-ionized water were added and the mixture was brought into solution while stirring with a mixer disc at <NUM> rpm and approximately <NUM>, this solution is called matrix solution. Thereupon, <NUM> of an oil mixture (<NUM> vitamin A acetate (<NUM>×<NUM><NUM> IE/g) and <NUM> BHT melted at approximately <NUM>) were emulsified in this matrix and stirred for <NUM> minutes. During the emulsification and stirring the mixer disc was operated at <NUM> rpm. After this emulsification the internal phase of the emulsion had an average particle size of about <NUM> (measured by laser diffraction). The emulsion was diluted with <NUM> of de-ionized water and the temperature was held at <NUM>.

Subsequently <NUM> of corn starch (fluidized with silicic acid) were placed in a laboratory spray pan and cooled to at least <NUM>. The emulsion was sprayed into the spray pan using a rotating spray nozzle. The thus-obtained particles coated with corn starch were sieved off (sieve fraction <NUM> to <NUM>) from the excess corn starch and dried at room temperature using a stream of air. There were obtained <NUM> of particles coated with corn starch which had outstanding flow properties, were completely dry and could be handled very well. The trial was repeated four times. The collected dry powder was blended and spirited in four parts for additional drying using a lab fluid bed dryer (Retsch): part <NUM> without (example 1A), part <NUM> for <NUM> minutes at <NUM> and <NUM> minutes at <NUM> (example 1B), part <NUM> for <NUM> minutes at <NUM> (example 1C) and part four for <NUM> minutes at <NUM> (example 1D).

The analytical data (residual moisture content and extrusion loss in tablets) as well as stability data are summarized in table <NUM>.

The lower residual moisture content results beside the stability improvement also in a significant lower extrusion loss during tabletting. The extrusion loss is defined as the percentage of the active material which is extractable by an organic solvent out of the formulation, after being tabletted under defined conditions. Important: The matrix of the product form must not be soluble in the organic solvent. As known, the extrusion loss correlates with the stability in tablets.

In each case a certain amount of the actual sales form Vitamin A Acetate <NUM> CWS/S (DSM Nutritional Products AG, Kaiseraugst, Switzerland) have been used for additional drying using a lab fluid bad dryer (Retsch):.

The analytical data (residual moisture content and extrusion loss in tablets) are given in table <NUM>.

Claim 1:
A formulation of a lipophilic health ingredient, wherein the lipophilic health ingredient is Vitamin A acetate, which contains
<NUM> to <NUM> weight-%, based on the total weight of the formulation, of Vitamin A acetate and
<NUM> to <NUM> weight-%, based on the total weight of the formulation, of DL-alpha-tocopherol or any other stabilizer and
<NUM> to <NUM> weight-%, based on the total weight of the formulation, of modified food starch and
<NUM> to <NUM> weight-%, based on the total weight of the formulation, of sucrose and <NUM> to <NUM> weight-%, based on the total weight of the formulation, of a coating of corn starch, characterized in that the formulation has a residual moisture content of ≤ <NUM>, based on the total weight of the formulation,