US20060240099A1 - High-amylose starch - Google Patents
High-amylose starch Download PDFInfo
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- US20060240099A1 US20060240099A1 US11/453,873 US45387306A US2006240099A1 US 20060240099 A1 US20060240099 A1 US 20060240099A1 US 45387306 A US45387306 A US 45387306A US 2006240099 A1 US2006240099 A1 US 2006240099A1
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- Prior art keywords
- starch
- high amylose
- film
- pregelatinized
- amylose starch
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
- C08B30/14—Cold water dispersible or pregelatinised starch
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/16—Coating with a protective layer; Compositions or apparatus therefor
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G3/00—Sweetmeats; Confectionery; Marzipan; Coated or filled products
- A23G3/34—Sweetmeats, confectionery or marzipan; Processes for the preparation thereof
- A23G3/346—Finished or semi-finished products in the form of powders, paste or liquids
-
- 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
- A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
- A23L27/70—Fixation, conservation, or encapsulation of flavouring agents
- A23L27/79—Fixation, conservation, or encapsulation of flavouring agents in the form of films
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
- A61K9/2806—Coating materials
- A61K9/2833—Organic macromolecular compounds
- A61K9/286—Polysaccharides, e.g. gums; Cyclodextrin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/4816—Wall or shell material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G2200/00—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF containing organic compounds, e.g. synthetic flavouring agents
- A23G2200/06—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF containing organic compounds, e.g. synthetic flavouring agents containing beet sugar or cane sugar if specifically mentioned or containing other carbohydrates, e.g. starches, gums, alcohol sugar, polysaccharides, dextrin or containing high or low amount of carbohydrate
Definitions
- the subject of the invention is a novel process for preparing pregelatinized high-amylose starches.
- Pregelatinized starches are generally prepared by thermal, chemical or mechanical techniques which can cause swelling of the starch granules so that they are soluble in cold water.
- the preferred techniques are spray-drying, cooking on a drum or extrusion.
- Autoclaving or indirect heating on a heat exchanger are cooking processes which tend to produce complex colloidal dispersions consisting of intact, fragmented and swollen granules.
- amylose starches that is to say which have more than 50% by weight of amylose, are particularly difficult to disperse and require high cooking temperatures.
- the document EP 0 366 898 describes a coupled cooking/spray-drying process which makes it possible to obtain amorphous products, which are practically free of retrogradation, and which have an apparent density greater than that of an identical starch which has been subjected to the same process but in two separate stages, that is an apparent density greater than 0.45 g/ml.
- the cooking of high amylose starches is carried out on a jet cooker at 143° C. and the spray-drying is carried out with an inlet air temperature of 220° C.
- This document presents, in FIG. 7, a comparison of various prior art pregelatinized starches.
- the subject of the invention is therefore a process for preparing pregelatinized high amylose starch, characterized in that it comprises the steps consisting of:
- the pregelatinized high amylose starch obtained may then be recovered and ground so as to obtain a powder having a particle size which is chosen according to the uses which will be subsequently made thereof.
- high amylose starches for the purposes of the present invention denotes starches having an amylose content greater than or equal to 50% by weight, and preferably of between 50 and 80% by weight, obtained from any plant origin, such as in particular maize, potato, cassava.
- the process according to the invention uses a maize starch such as, for example, EURYLON® marketed by the Assignee.
- the invention also applies to chemically or physically modified high amylose starches.
- the modified starch will be chosen from the group consisting of acetylated, hydroxypropylated, carboxy-methylated and fluidified starches, and starch octenyl succinates.
- an acetylated starch will be chosen.
- the starch suspension is prepared at a dry matter content of between 30 and 40% by weight so as to obtain a suspension in water.
- This suspension is then pregelatinized using a tuyere at the outlet of which a steam counter-pressure is applied which is sufficient to reach a cooking temperature for the suspension of between 125 and 135° C. while maintaining an acceptable viscosity so that the flow rate of the milk coming out after cooking is not too low.
- a counter-pressure of the order of 2 to 3 bar will be applied.
- amylose fraction exists, according to the process in accordance with the invention, in amorphous form, whereas the prior art processes for cooking high amylose starches lead to an amylose which has a high tendency to undergo retro-gradation.
- tuyere is understood to mean any direct steam jet cooking device allowing instant cooking of a starch suspension using pressurized steam.
- a pregelatinized starch paste is obtained after this cooking, which is then dried on a drum dryer.
- Such an equipment makes it possible to reproduce, on one and the same device, the cooking and drying stages by exploiting the heat transferred from the surface of the drums heated with steam to the starch paste.
- Steam pressure values of the order of 2 to 10 bar will be applied, for example, according to the type of starch used.
- the starch paste is uniformly spread in a thin film over the hot surface of the drums by applying components.
- the drums are driven in rotation, at a speed of the order of 5 to 8 revolutions per minute.
- the film formed is then scraped using a scraping blade so as to detach a sheet which can then be ground.
- the process according to the invention makes it possible to homogeneously obtain pregelatinized high amylose starches without the need for the use of very high temperatures as taught by the prior art.
- the process according to the invention is particularly advantageous because it uses simple techniques, with a lower energy cost than the known techniques of spray-drying or autoclaving.
- the pregelatinized high amylose starches according to the invention are characterized by an apparent density of less than 0.4 g/ml for a mean particle size of 100 micrometres, which is particularly surprising given the higher densities obtained according to the prior art techniques and in particular those described in patent EP-B1 0 366 898.
- starches have, in addition, various applicative advantages such as, in particular, a good compression capacity, and in particular very good capacities to form a film. This capacity is particularly advantageous for film coating tablets in particular, but also for numerous other applications requiring the formation of a barrier to moisture and to air.
- pregelatinized high amylose starches capable of having film-forming properties did not exist on the market.
- the subject of the invention is therefore, in addition, the use of pregelatinized high amylose starches for the manufacture of soft gelatin capsules or of hard gelatin capsules, as well as for the coating of solid forms in pharmacy, human foods, animal foods, agrochemistry or plant substances such as seeds.
- the subject of the invention is also the use of high amylose starches obtained according to the invention for the preparation of freshening films, also called flavour sheets.
- These flavour sheets are small squares of edible films, which are very fine, highly flavoured, and used as breath fresheners by dissolving rapidly in the buccal cavity.
- the applicants have observed that in addition to the remarkable film-forming properties of the starches according to the invention, the latter had an advantageous capacity to encapsulate molecules with low solubility in water, such as flavourings or certain active ingredients.
- the applicants are of the opinion that this encapsulation property is linked to the amorphous state of the precooked amylose according to the process in accordance with the invention, given that the precooked high amylose starches according to the prior art processes do not possess this encapsulation property.
- the film obtained has the desired properties, namely good solubility, adequate mechanical properties, strong flavouring and no adherence between each film-during packaging.
- an edible film which is highly flavoured or which comprises an active ingredient which is weakly soluble in water, characterized in that it comprises a pregelatinized high amylose starch according to the invention constitutes, to the knowledge of the applicants, a novel industrial product.
- the expression “weakly soluble in water” is understood to mean, according to the present invention, flavourings or active ingredients which have a solubility in water of less than 5% by weight.
- the film according to the invention comprises, on a dry matter basis, 5 to 40%, preferably 5 to 25%, of pregelatinized high amylose starch according to the invention.
- the said pregelatinized high amylose starch is stabilized, for example, by acetylation or hydroxypropylation.
- the film comprises, in addition, any other film-forming polymer commonly used in practice, such as in particular high amylopectin starches, modified or otherwise, high amylose starches, modified or otherwise, standard or special maltodextrins, film-forming polysaccharides and proteins such as gelatin, pullulan, plant gums, gluten.
- any other film-forming polymer commonly used in practice such as in particular high amylopectin starches, modified or otherwise, high amylose starches, modified or otherwise, standard or special maltodextrins, film-forming polysaccharides and proteins such as gelatin, pullulan, plant gums, gluten.
- the edible film comprises 5 to 40% of pregelatinized high amylose starch according to the invention and 40 to 80% of high amylopectin starch.
- the balance for 100% consists of flavourings, active ingredients, sweeteners, one or more humectants and optionally colourings.
- the final water content of the films according to the invention is generally about 12%.
- high amylopectin starch is understood to mean the so-called waxy starches, derived in particular from maize or potato.
- the said film comprises, on a dry matter basis, 5 to 40%, preferably 5 to 25%, of pregelatinized high amylose starch according to the invention, and 40 to 80%, preferably 40 to 70%, of waxy starch fluidified by the acid route.
- a waxy starch derived from maize fluidified by techniques known-to persons skilled in the art would be preferably chosen.
- the film according to the invention may be used as it is as a flavour sheet for freshening the breath, but it may also be used for the film-coating of various supports, in particular dietary or pharmaceutical supports. There may be mentioned, without limitation, the film-coating of tablets, confectioneries, or any other support.
- High amylose starches are prepared according to a process comprising the following steps:
- the initial starch is EURYLON®7 marketed by the Assignee, having an amylose content of 70% by weight.
- the various process parameters are presented in Table 1, as well as the apparent densities and the mean particle sizes of the various products obtained.
- the apparent density is measured according to the pharmaceutical technical method 2.9.16 of the European Pharmacopoeia, 3rd edition.
- the mean particle size is calculated from the particle size measured by sieving on successive sieves of 500, 315, 200, 150, 100 and 50 micrometres.
- the product obtained according to trial No. 3 of the preceding example is solubilized in hot water (70-80° C.), with mechanical stirring, at 15% of dry matter.
- the Brookfield viscosity is 4 000 mPa s at 70° C. and 5 000 mPas s at 60° C.
- This solution is placed on a polyethylene support over a thickness of 45.7 micrometres.
- the solution thus deposited is dried at room temperature, and gives a rigid film, which is nonbrittle, and which is insoluble in water.
- This film can give rise to very numerous applications, since it can serve to coat all types of solid forms which it is desired to protect, whether they are pharmaceutical (tablets, gelatin capsules), dietary (fries, tart bases, confectioneries) or agricultural (seeds, granules).
- film-forming properties may also be applied in the manufacture of soft gelatin capsules or hard gelatin capsules.
- Formula Composition of Quantity Composition of the suspension used the film on a (%) (g) dry basis (%) Fluidified waxy 27.75 138.75 55.5 starch (CLEARGUM ®CB90) High amylose 4.60 23.00 9.2 starch according to trial 2 example 1 Mint flavour 2.50 12.50 5.0 SILESIA Glycerol 15.0 75.0 30.0 Sodium 0.15 0.75 0.3 saccharinate Water 50.0 250.0 — Total 100 500 100
- the film thus obtained which is highly flavoured, is very soluble, supple and flexible, nonbrittle and not cracked, regular and homogeneous as regards the distribution of the flavour, transparent. It does not stick on contact with other films during prolonged storage. It can therefore be easily used as freshening flavour sheet, or in order to wrap or coat any type of support, in particular a dietary or pharmaceutical support.
- a film prepared in the same manner but without incorporating starch according to the invention is completely heterogeneous in its centre and impossible to detach from its support in the form of a uniform sheet.
Abstract
The subject of the present invention is a process for preparing pregelatinized high amylose starch, having the steps consisting of: forming a suspension comprising a high amylose starch and water; subjecting the suspension to steam jet cooking at a temperature of between 125 and 135° C. so as to obtain a pregelatinized high amylose starch paste; cooking and drying the pregelatinized starch paste on a drum dryer at a pressure of between 2 and 10 bar, so as to obtain a pregelatinized high amylose starch. A pregelatinized high amylose starch is also disclosed having an apparent density of less than 0.4 g/ml for a mean particle size of 100 micrometres.
Description
- The subject of the invention is a novel process for preparing pregelatinized high-amylose starches.
- Its subject is also the starches obtained by this process.
- Pregelatinized starches are generally prepared by thermal, chemical or mechanical techniques which can cause swelling of the starch granules so that they are soluble in cold water.
- The preferred techniques are spray-drying, cooking on a drum or extrusion. Autoclaving or indirect heating on a heat exchanger are cooking processes which tend to produce complex colloidal dispersions consisting of intact, fragmented and swollen granules.
- It is well known that high amylose starches, that is to say which have more than 50% by weight of amylose, are particularly difficult to disperse and require high cooking temperatures.
- The document U.S. Pat. No. 3,086,890 describes a process for preparing pregelatinized amylose. This process consists in autoclaving at 191° C., under pressure, a solution of amylose containing at most 25% by weight of dry matter, and then drum-drying at 110-200° C. The powders obtained are amorphous and form irreversible gels after dispersion. Their apparent density is high, that is to say generally greater than 0.4 g/ml.
- The document U.S. Pat. No. 3,607,394 describes a process for the pregelatinization of starches having amylose contents of less than 60% by weight. This process consists in cooking the starch at 149° C., followed by drum-drying, spray-drying or another type of drying means.
- The document EP 0 366 898 describes a coupled cooking/spray-drying process which makes it possible to obtain amorphous products, which are practically free of retrogradation, and which have an apparent density greater than that of an identical starch which has been subjected to the same process but in two separate stages, that is an apparent density greater than 0.45 g/ml. The cooking of high amylose starches is carried out on a jet cooker at 143° C. and the spray-drying is carried out with an inlet air temperature of 220° C. This document presents, in FIG. 7, a comparison of various prior art pregelatinized starches.
- Starting from this teaching, the applicants have now found, after long research studies, that it was possible to prepare a pregelatinized high amylose starch using a particular process leading to products of low apparent density while working at not very high temperatures, which none of the prior art techniques made it possible to obtain.
- The subject of the invention is therefore a process for preparing pregelatinized high amylose starch, characterized in that it comprises the steps consisting of:
-
- forming a suspension comprising a high amylose starch and water;
- subjecting the said suspension to steam jet cooking at a temperature of between 125 and 135° C. so as to obtain a pregelatinized high amylose starch paste;
- drying the said pregelatinized starch on a drum dryer at a pressure of between 2 and 10 bar, so as to obtain a pregelatinized high amylose starch.
- The pregelatinized high amylose starch obtained may then be recovered and ground so as to obtain a powder having a particle size which is chosen according to the uses which will be subsequently made thereof.
- The expression high amylose starches for the purposes of the present invention denotes starches having an amylose content greater than or equal to 50% by weight, and preferably of between 50 and 80% by weight, obtained from any plant origin, such as in particular maize, potato, cassava.
- Preferably, the process according to the invention uses a maize starch such as, for example, EURYLON® marketed by the Assignee.
- The invention also applies to chemically or physically modified high amylose starches. Preferably, the modified starch will be chosen from the group consisting of acetylated, hydroxypropylated, carboxy-methylated and fluidified starches, and starch octenyl succinates.
- According to a preferred variant of the process according to the invention, an acetylated starch will be chosen.
- The starch suspension is prepared at a dry matter content of between 30 and 40% by weight so as to obtain a suspension in water.
- This suspension is then pregelatinized using a tuyere at the outlet of which a steam counter-pressure is applied which is sufficient to reach a cooking temperature for the suspension of between 125 and 135° C. while maintaining an acceptable viscosity so that the flow rate of the milk coming out after cooking is not too low. For example, a counter-pressure of the order of 2 to 3 bar will be applied.
- Surprisingly and unexpectedly, this cooking temperature is necessary and sufficient to obtain good pregelatinized starch solubility. The amylose fraction exists, according to the process in accordance with the invention, in amorphous form, whereas the prior art processes for cooking high amylose starches lead to an amylose which has a high tendency to undergo retro-gradation.
- The expression tuyere is understood to mean any direct steam jet cooking device allowing instant cooking of a starch suspension using pressurized steam.
- A pregelatinized starch paste is obtained after this cooking, which is then dried on a drum dryer.
- Such an equipment makes it possible to reproduce, on one and the same device, the cooking and drying stages by exploiting the heat transferred from the surface of the drums heated with steam to the starch paste. Steam pressure values of the order of 2 to 10 bar will be applied, for example, according to the type of starch used. The starch paste is uniformly spread in a thin film over the hot surface of the drums by applying components. The drums are driven in rotation, at a speed of the order of 5 to 8 revolutions per minute. Thus, the cooking of the paste is continued, followed by drying. The film formed is then scraped using a scraping blade so as to detach a sheet which can then be ground.
- The process according to the invention makes it possible to homogeneously obtain pregelatinized high amylose starches without the need for the use of very high temperatures as taught by the prior art. The process according to the invention is particularly advantageous because it uses simple techniques, with a lower energy cost than the known techniques of spray-drying or autoclaving.
- The pregelatinized high amylose starches according to the invention are characterized by an apparent density of less than 0.4 g/ml for a mean particle size of 100 micrometres, which is particularly surprising given the higher densities obtained according to the prior art techniques and in particular those described in patent EP-B1 0 366 898.
- Their solubility in lukewarm water is good, in the region of 80%, whereas it is less than 30% when the tuyere cooking stage is eliminated.
- These starches have, in addition, various applicative advantages such as, in particular, a good compression capacity, and in particular very good capacities to form a film. This capacity is particularly advantageous for film coating tablets in particular, but also for numerous other applications requiring the formation of a barrier to moisture and to air. To the knowledge of the applicants, such pregelatinized high amylose starches capable of having film-forming properties did not exist on the market. The subject of the invention is therefore, in addition, the use of pregelatinized high amylose starches for the manufacture of soft gelatin capsules or of hard gelatin capsules, as well as for the coating of solid forms in pharmacy, human foods, animal foods, agrochemistry or plant substances such as seeds.
- The subject of the invention is also the use of high amylose starches obtained according to the invention for the preparation of freshening films, also called flavour sheets. These flavour sheets are small squares of edible films, which are very fine, highly flavoured, and used as breath fresheners by dissolving rapidly in the buccal cavity. The applicants have observed that in addition to the remarkable film-forming properties of the starches according to the invention, the latter had an advantageous capacity to encapsulate molecules with low solubility in water, such as flavourings or certain active ingredients. Indeed, during the formulation of such films based on film-forming polymers, when about 5% of flavouring or of active ingredient which are weakly soluble in water are added to the film-forming preparation, a total phase separation occurs during the spreading of the film, between the hydrophobic molecules and the other components. The film-forming solution is pushed to the sides of the band of film, whereas the centre is only composed of flavouring or of active ingredient. The film obtained therefore does not constitute a homogeneous thin layer. The addition, before incorporation of the flavouring, of a pregelatinized high amylose starch according to the invention allows, surprisingly and unexpectedly, inclusion of the flavourings or active ingredients which are weakly soluble in water, on the one hand, and an excellent film quality, on the other hand. Without wishing to be bound to any theory, the applicants are of the opinion that this encapsulation property is linked to the amorphous state of the precooked amylose according to the process in accordance with the invention, given that the precooked high amylose starches according to the prior art processes do not possess this encapsulation property. The film obtained has the desired properties, namely good solubility, adequate mechanical properties, strong flavouring and no adherence between each film-during packaging.
- Thus, an edible film which is highly flavoured or which comprises an active ingredient which is weakly soluble in water, characterized in that it comprises a pregelatinized high amylose starch according to the invention, constitutes, to the knowledge of the applicants, a novel industrial product. The expression “weakly soluble in water” is understood to mean, according to the present invention, flavourings or active ingredients which have a solubility in water of less than 5% by weight.
- According to a preferred embodiment of the film according to the invention, the latter comprises, on a dry matter basis, 5 to 40%, preferably 5 to 25%, of pregelatinized high amylose starch according to the invention. According to a still more preferred embodiment of the invention, the said pregelatinized high amylose starch is stabilized, for example, by acetylation or hydroxypropylation.
- The film comprises, in addition, any other film-forming polymer commonly used in practice, such as in particular high amylopectin starches, modified or otherwise, high amylose starches, modified or otherwise, standard or special maltodextrins, film-forming polysaccharides and proteins such as gelatin, pullulan, plant gums, gluten.
- According to a preferred variant, the edible film comprises 5 to 40% of pregelatinized high amylose starch according to the invention and 40 to 80% of high amylopectin starch. The balance for 100% consists of flavourings, active ingredients, sweeteners, one or more humectants and optionally colourings. The final water content of the films according to the invention is generally about 12%.
- The expression high amylopectin starch is understood to mean the so-called waxy starches, derived in particular from maize or potato.
- According to a still more preferred variant, the said film comprises, on a dry matter basis, 5 to 40%, preferably 5 to 25%, of pregelatinized high amylose starch according to the invention, and 40 to 80%, preferably 40 to 70%, of waxy starch fluidified by the acid route.
- A waxy starch derived from maize fluidified by techniques known-to persons skilled in the art would be preferably chosen.
- Of course, the film according to the invention may be used as it is as a flavour sheet for freshening the breath, but it may also be used for the film-coating of various supports, in particular dietary or pharmaceutical supports. There may be mentioned, without limitation, the film-coating of tablets, confectioneries, or any other support.
- The advantageous properties of encapsulation of substances weakly soluble in water of the starches according to the invention may also be exploited in any other type of application requiring such properties, in aqueous medium or in the dry state.
- The invention will be understood more clearly on reading the following examples, which are intended to be explanatory and nonlimiting.
- High amylose starches, modified or otherwise, are prepared according to a process comprising the following steps:
-
- preparation of a suspension of starch and water
- cooking in a tuyere
- drying on a drum dryer
- recovery of a powder
- In all cases, the initial starch is EURYLON®7 marketed by the Assignee, having an amylose content of 70% by weight.
- The various process parameters are presented in Table 1, as well as the apparent densities and the mean particle sizes of the various products obtained. The apparent density is measured according to the pharmaceutical technical method 2.9.16 of the European Pharmacopoeia, 3rd edition. The mean particle size is calculated from the particle size measured by sieving on successive sieves of 500, 315, 200, 150, 100 and 50 micrometres.
- The displacement density is measured according to the method described in patent EP-B1 0 366 898.
TRIAL 4 TRIAL 6 TRIAL 2 TRIAL 3 EURYLON ® 7 TRIAL 5 EURYLON ® 7 TRIAL 1 EURYLON ® 7 EURYLON ® 7 OCTENYL EURYLON ® 7 FLUIDIFIED EURYLON ® 7 ACETYL ACETYL SUCCINATE HYDROXYPROPYL ACIDIC DRY MATTER (%) 33.5 33.4 33.4 38 35.4 39 TUYERE TEMPERATURE 130 135 135 133 135 135 (° C.) TUYERE 2.67 3.1 3.1 2.92 3.1 3.1 COUNTERPRESSURE (Bar) DRUM ROTATION SPEED 6.5 7 8 6.5 7 6.5 (revolutions/min) DRUM PRESSURE (Bar) 10 10 2 10 10 10 MEAN PARTICLE SIZE 88.2 101.2 100.8 100.6 100.6 100.4 (μm) APPARENT DENSITY 0.31 0.22 0.23 0.34 0.16 0.37 (g/ml) DISPLACEMENT 1.26 1.26 1.2 1.6 1.05 1.95 DENSITY (g/ml) - In order to illustrate the film-forming properties, the product obtained according to trial No. 3 of the preceding example is solubilized in hot water (70-80° C.), with mechanical stirring, at 15% of dry matter. The Brookfield viscosity is 4 000 mPa s at 70° C. and 5 000 mPas s at 60° C.
- This solution is placed on a polyethylene support over a thickness of 45.7 micrometres.
- The solution thus deposited is dried at room temperature, and gives a rigid film, which is nonbrittle, and which is insoluble in water.
- This film can give rise to very numerous applications, since it can serve to coat all types of solid forms which it is desired to protect, whether they are pharmaceutical (tablets, gelatin capsules), dietary (fries, tart bases, confectioneries) or agricultural (seeds, granules).
- These film-forming properties may also be applied in the manufacture of soft gelatin capsules or hard gelatin capsules.
- Flavour sheets are prepared according to the following procedure:
- Formula
Composition of Quantity Composition of the suspension used the film on a (%) (g) dry basis (%) Fluidified waxy 27.75 138.75 55.5 starch (CLEARGUM ®CB90) High amylose 4.60 23.00 9.2 starch according to trial 2 example 1 Mint flavour 2.50 12.50 5.0 SILESIA Glycerol 15.0 75.0 30.0 Sodium 0.15 0.75 0.3 saccharinate Water 50.0 250.0 — Total 100 500 100 -
- In a jacketed stainless-steel bowl, disperse the CLEARGUM® in water, the glycerol and the saccharinate. Heat to 90° C.
- Pour into the bowl of a KENWOOD mixer, add the pregelatinized high amylose starch and the flavouring. Mix for 1 minute at the minimum speed (solution S).
- Pour the solution S into the stainless-steel bowl and heat to 85° C., degas the mixture as much as possible.
- When the mixture is at 85° C., form a film on a plastic plate (thickness of paste =1.5 mm) with an automatic film applicator (bar-coater B-2105, RK printcoat) equipped with a scale preheated to 60° C.
- Allow to dry in an oven at 20° C. and 80% relative humidity for 2 days and then end the drying at 20° C. under an uncontrolled atmosphere.
- The film thus obtained, which is highly flavoured, is very soluble, supple and flexible, nonbrittle and not cracked, regular and homogeneous as regards the distribution of the flavour, transparent. It does not stick on contact with other films during prolonged storage. It can therefore be easily used as freshening flavour sheet, or in order to wrap or coat any type of support, in particular a dietary or pharmaceutical support.
- A film prepared in the same manner but without incorporating starch according to the invention is completely heterogeneous in its centre and impossible to detach from its support in the form of a uniform sheet.
Claims (20)
1. A pregelatinized high amylose starch, having an apparent density of less than 0.4 g/ml for a mean particle size of 100 micrometres.
2. A soft gelatin capsule comprising the starch according to claim 1 .
3. A hard gelatin capsule comprising the starch according to claim 1 .
4. A pharmaceutical, dietary or agricultural solid form film-coated with the starch according to claim 1 .
5. An edible film comprising a flavouring and/or an active ingredient having a solubility in water of less than 5% by weight, comprising the starch according to claim 1 .
6. Molecules having a solubility in water of less than 5% by weight, wherein said molecules are encapsulated with the starch according to claim 1 .
7. A flavoured film or film comprising an active ingredient which is weakly soluble in water, comprising a pregelatinized high amylose starch according to claim 1 .
8. The film according to claim 7 , comprising, on a dry matter basis, 5% to 40% of stabilized pregelatinized high amylose starch.
9. The film according to claim 8 , comprising, on a dry matter basis, 5% to 25% of stabilized pregelatinized high amylose starch.
10. A pregelatinized high amylose starch, having an apparent density of less than 0.4 g/ml for a mean particle size of 100 micrometers, prepared by forming a suspension comprising a high amylose starch and water; subjecting said suspension to steam jet cooking at a temperature of between 125° C. and 135° C. so as to obtain a pregelatinized high amylose starch paste; drying said pregelatinized starch paste on a drum dryer at a pressure of between 2 bar and 10 bar, so as to obtain a pregelatinized high amylose starch.
11. A soft gelatin capsule comprising the starch according to claim 10 .
12. A hard gelatin capsule comprising the starch according to claim 10 .
13. A pharmaceutical, dietary or agricultural solid form film-coated with the starch according to claim 10 .
14. An edible film comprising a flavouring and/or an active ingredient having a solubility in water of less than 5% by weight, comprising the starch according to claim 10 .
15. Molecules having a solubility in water of less than 5% by weight, wherein said molecules are encapsulated with the starch according to claim 10 .
16. A flavoured film or film comprising an active ingredient which is weakly soluble in water, comprising a pregelatinized high amylose starch according to claim 10 .
17. The film according to claim 16 , comprising, on a dry matter basis, 5% to 40% of stabilized pregelatinized high amylose starch.
18. The film according to claim 17 , comprising, on a dry matter basis, 5% to 25% of stabilized pregelatinized high amylose starch.
19. A pregelatinized high amylose starch, having an apparent density of less than 0.4 g/ml for a mean particle size of 100 micrometres, wherein the high amylose starch has an amylose content greater than 50%.
20. An edible film comprising a flavouring and/or an active ingredient having a solubility in water of less than 5% by weight, comprising the starch prepared by the process according to claim 19.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/453,873 US20060240099A1 (en) | 2001-03-26 | 2006-06-16 | High-amylose starch |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0104023A FR2822471B1 (en) | 2001-03-26 | 2001-03-26 | METHOD OF COOKING / DRYING AMYLOSE-RICH STARCHES |
FR0104023 | 2001-03-26 | ||
US10/105,661 US7118764B2 (en) | 2001-03-26 | 2002-03-25 | Process for cooking/drying high-amylose starches |
US11/453,873 US20060240099A1 (en) | 2001-03-26 | 2006-06-16 | High-amylose starch |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/105,661 Division US7118764B2 (en) | 2001-03-26 | 2002-03-25 | Process for cooking/drying high-amylose starches |
Publications (1)
Publication Number | Publication Date |
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US20060240099A1 true US20060240099A1 (en) | 2006-10-26 |
Family
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US10/105,661 Expired - Fee Related US7118764B2 (en) | 2001-03-26 | 2002-03-25 | Process for cooking/drying high-amylose starches |
US11/453,873 Abandoned US20060240099A1 (en) | 2001-03-26 | 2006-06-16 | High-amylose starch |
Family Applications Before (1)
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US10/105,661 Expired - Fee Related US7118764B2 (en) | 2001-03-26 | 2002-03-25 | Process for cooking/drying high-amylose starches |
Country Status (14)
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US (2) | US7118764B2 (en) |
EP (1) | EP1245577B1 (en) |
JP (1) | JP4382355B2 (en) |
KR (1) | KR20030010639A (en) |
CN (1) | CN1249090C (en) |
AT (1) | ATE327260T1 (en) |
AU (1) | AU2002251150B2 (en) |
CA (1) | CA2378682C (en) |
DE (1) | DE60211583T2 (en) |
FR (1) | FR2822471B1 (en) |
HU (1) | HUP0302151A3 (en) |
MX (1) | MXPA02011676A (en) |
PL (1) | PL206718B1 (en) |
WO (1) | WO2002077035A1 (en) |
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EP2183964A1 (en) | 2008-11-11 | 2010-05-12 | Barilla G. e R. Fratelli S.p.A. | High amylose durum wheat grains, meal and starch |
WO2012084759A3 (en) * | 2010-12-21 | 2012-08-16 | Akzo Nobel Chemicals International B.V. | Instant powders for aqueous cosmetic and pharmaceutical applications |
US10212950B2 (en) | 2013-02-26 | 2019-02-26 | J-Oil Mills, Inc. | Composition, batter material using same, food or drink and feed, and method of producing composition |
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CN114128832A (en) * | 2021-12-10 | 2022-03-04 | 湖北省农业科学院农产品加工与核农技术研究所 | Preparation method of quick-frozen buckwheat cooked noodles |
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- 2002-03-25 AU AU2002251150A patent/AU2002251150B2/en not_active Ceased
- 2002-03-25 MX MXPA02011676A patent/MXPA02011676A/en active IP Right Grant
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- 2002-03-25 HU HU0302151A patent/HUP0302151A3/en unknown
- 2002-03-25 WO PCT/FR2002/001031 patent/WO2002077035A1/en active Application Filing
- 2002-03-25 DE DE60211583T patent/DE60211583T2/en not_active Expired - Lifetime
- 2002-03-25 JP JP2002576293A patent/JP4382355B2/en not_active Expired - Fee Related
- 2002-03-25 EP EP02290745A patent/EP1245577B1/en not_active Expired - Lifetime
- 2002-03-25 KR KR1020027016026A patent/KR20030010639A/en not_active Application Discontinuation
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US20090142812A1 (en) * | 2007-11-30 | 2009-06-04 | Roman Skuratowicz | Method for producing high molecular weight reduced viscosity starch pastes |
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US10212950B2 (en) | 2013-02-26 | 2019-02-26 | J-Oil Mills, Inc. | Composition, batter material using same, food or drink and feed, and method of producing composition |
Also Published As
Publication number | Publication date |
---|---|
EP1245577A1 (en) | 2002-10-02 |
FR2822471B1 (en) | 2003-06-13 |
FR2822471A1 (en) | 2002-09-27 |
MXPA02011676A (en) | 2003-05-14 |
CN1249090C (en) | 2006-04-05 |
HUP0302151A2 (en) | 2003-09-29 |
AU2002251150B2 (en) | 2008-03-20 |
US7118764B2 (en) | 2006-10-10 |
JP4382355B2 (en) | 2009-12-09 |
CA2378682A1 (en) | 2002-09-26 |
ATE327260T1 (en) | 2006-06-15 |
WO2002077035A1 (en) | 2002-10-03 |
DE60211583T2 (en) | 2007-04-26 |
CA2378682C (en) | 2010-06-29 |
CN1461312A (en) | 2003-12-10 |
HUP0302151A3 (en) | 2005-11-28 |
EP1245577B1 (en) | 2006-05-24 |
PL206718B1 (en) | 2010-09-30 |
US20030029444A1 (en) | 2003-02-13 |
JP2004519546A (en) | 2004-07-02 |
DE60211583D1 (en) | 2006-06-29 |
PL358378A1 (en) | 2004-08-09 |
KR20030010639A (en) | 2003-02-05 |
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