Food or edible material: processes – compositions – and products – Products per se – or processes of preparing or treating... – Noncarbohydrate sweetener or composition containing same
Reexamination Certificate
2000-07-11
2003-05-13
Corbin, Arthur L. (Department: 1761)
Food or edible material: processes, compositions, and products
Products per se, or processes of preparing or treating...
Noncarbohydrate sweetener or composition containing same
C426S660000
Reexamination Certificate
active
06562392
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention under consideration concerns improved sugar-free products, their production and use, in particular, coated products, their production and use.
Coated products contain a coating produced from sugar, sugar alcohols, chocolates, and/or other glazes with a liquid, soft, or solid core. Chewing gum inserts, fruits, compressed material, or other pharmaceutical products are, for example, used as cores. Thus, for example, U.S. Pat. No. 4,792,453 describes a sugar-free coated chewing gum, whose coating contains hydrogenated isomaltulose. This chewing gum is obtained by coating with a syrup which contains the hydrogenated isomaltulose. Thus, 1-O-&agr;-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS), dissolved in approximately equimolar quantities, are present in the syrup coating.
A number of methods for the production of coated products are also known. Essentially, a distinction is made between soft coating, hard coating, and suspension dragee formation. Soft coating means the application of saccharides dissolved in water on cores which are moving, wherein after each application, saccharide powder is sprinkled, so as to bind the moisture. This type of coating forms a soft dragee coating (European Patent No. 1,625,311 A1). The fact that the metering of the syrup used for the coating—that is, the dissolved saccharide—and the metering of the powder must be coordinated with one another proves to be a disadvantage, in addition to the complicated processing execution.
Hard coating is likewise understood to mean—just as with soft coating—the application of saccharides dissolved in water on cores which are moving, wherein, however, saccharide powder is not applied, but rather the nonaqueous components are immediately dried. As with soft coating, a large number of different individual applications (50-120) are carried out, between which drying is undertaken with warm or cold air, so that various thicknesses of dragee coatings can be produced. Also, hard coating methods with two different saccharide solutions, which are applied after one another (“dual-composition coating”), are also known. Thus, in more recent times, methods are described in which maltitol-containing layers are first applied and then the remaining coating was built up with xylitol (U.S. Pat. No. 5,376,389). These methods, however, use two different saccharides for the production of the solution to be applied and accordingly, have to be carried out in a complicated manner. In addition, coating layers made of xylitol detach readily during the coating process, in particular on the comers and edges of the coated cores.
Both in hard coating as well as in soft coating methods, the problem of the adhesion tendency upon application of the aqueous solutions arises—for example, when using hydrogenated isomaltulose for the coating. This adhesion tendency causes the coating material to stick together or a sticking to the walls of the container used for the coating.
A third possibility for coating is to be found in the use of a suspension. The suspended mixture used up to now—for the most part only with sugar-containing products—consists of a liquid phase (which, for example, contains sugar, rice starch, and glucose dissolved in water) and a solid phase which consists of fine, crystalline sugar particles. The separate use of various sucroses is characteristic of this type of suspension-coating.
The coating products obtained with the described methods tend to lose their crispiness during storage because of the composition of their coating and their core. The reason for this is apparently to be found in the diffusion of moisture from the core into the coating. In the long run, this process also leads to undesired drying out of the dragee core. Conversely, the known products exhibit an undesired water absorption in a moist warm atmosphere, whose results are sticky, soft products, which are thus unattractive for consumption.
Also the products which are not coated and have been known up to now in the state of the art are capable of improvement with regard to their storage capacity, sweetening power, or solubility. These disadvantages originate in the type and composition of the saccharides used for the production of the products or their mixtures, such as hydrogenated isomaltulose. Hydrogenated isomaltulose is formed by the hydrogenation of isomaltulose and contains the components 6-O-&agr;-D-glucopyranosyl-D-sorbitol (below, referred to as 1,6-GPS) and 1-O-&agr;-D-glucopyranosyl-D-mannitol (referred to below as 1,1-GPM) in a ratio of approximately 1:1. Hydrogenated isomaltulose is dissolved only moderately in water, and in dissolved form tends to adhere upon application to the surfaces involved in the coating.
SUMMARY OF THE INVENTION
The technical problem at the core of the invention under consideration thus is to make available products which overcome the aforementioned disadvantages, methods for their production, and their use.
The solution to this technical problem is to be found in making available the saccharide mixtures characterized in the patent claims, products containing these mixtures, methods for their production, and their use in the food area, in particular, the sweetener and pharmaceutical areas.
In particular, the invention makes available 1,6-GPS-enriched mixtures, consisting of 1,6-GPS and 1,1-GPM, in a ratio of 57:43 wt %, in particular greater than 57:less than 43 wt %, to 99:1 wt % (based on the dry substance of the mixture of 1,6-GPS and 1,1-GPM, used for production, wherein its 1,6-GPS/1,1-GPM content is equal to 100%) and 1,1 -GPM-enriched mixtures, consisting of 1,6-GPS and 1,1-GPM, in a ratio of 1:99 wt % to 43 wt %: 57 wt %, in particular, smaller than 43:greater than 57 wt % (based on the dry substance of the mixture of 1,6-GPS and 1,1-GPM, used for production, wherein its 1,6-GPS/1,1-GPM content is equal to 100%). Depending on the composition of the starting substance used for their production, the mixtures can also contain small quantities of sorbitol, mannitol, etc. The mixtures in accordance with the invention can be used in a particularly advantageous manner in solution or as a suspension for the coating of products in the sweetener or pharmaceutical areas. In accordance with the invention, the mixtures can comprise an additive, an essential component, or essentially a sole component of the most varied products in the food or pharmaceutical areas. The 1,6-GPS- and 1,1-GPM-enriched mixtures in accordance with the invention can be, particularly advantageously, produced from a single basic substance, namely hydrogenated isomaltulose. Therefore, in accordance with the invention, it is possible to produce two mixtures, each with different characteristics, from this commercially obtainable basic substance. The 1,6-GPS-enriched mixture is characterized by an increased solubility and greater sweetening power, in comparison to hydrogenated isomaltulose and the 1,1-GPM-enriched mixture. The greater sweetening power is based, on the one hand, on the fact that 1,6-GPS goes into solution more rapidly and thus triggers a more rapid sweet sensation and, on the other hand, on the objectively greater sweetening power which is characteristic of the compound 1,6-GPS. The 1,1-GPM-enriched mixture exhibits a lower solubility than hydrogenated isomaltulose. The deliberate use of these two substances in products in the food, sweetener, or pharmaceutical areas makes it possible to impart to the products an improved storage stability and greater sweetening power and to simplify their production method.
The invention concerns, in particular, coated products, comprising a core and a coating, wherein the coating contains at least one layer made of a 1,6-GPS-enriched mixture, consisting of 1,6-GPS and 1,1-GPM, in a ratio of 57:43 wt %, in particular, greater than 57:smaller than 43 wt %, to 99:1 wt % (based on the dry substance of the mixture of 1,6-GPS and 1,1-GPM, used for production, wherein its 1,6-GPS/1,1-GPM content is equal to 100%) and/or of a 1,1-G
Rapp Knut M.
Willibald-Ettle Ingrid
Corbin Arthur L.
Ostrolenk Faber Gerb & Soffen, LLP
Sudzucker Aktiengesellschaft
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