Food or edible material: processes – compositions – and products – Normally noningestible chewable material or process of... – Packaged – structurally defined – or coated
Reexamination Certificate
2000-12-22
2003-06-17
Corbin, Arthur L. (Department: 1761)
Food or edible material: processes, compositions, and products
Normally noningestible chewable material or process of...
Packaged, structurally defined, or coated
C424S048000, C424S440000
Reexamination Certificate
active
06579545
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to methods for producing coated chewing gum products. More particularly, the invention relates to producing coated chewing gum products containing an antigas agent that is added to the chewing gum coating such that it will have a controlled fast release from chewing gum for maximum effectiveness.
Coated chewing gum products are well known. Many prior art patents disclose chewing gum products coated with sugar sweeteners or polyol sweeteners. U.S. Pat. No. 4,317,838, for example, discloses a method of applying a sugarless coating to chewing gum. The coating may include calcium carbonate as an anti-sticking agent. Synthetic sweeteners, including many different high-intensity sweeteners, are also suggested for use in the coating.
Another area of interest is the use of medicaments in chewing gum. In some instances, it is contemplated that an active medicament that is added to the chewing gum may be readily released. An active medicament may be added to the gum coating, which is a water soluble matrix, such that during the chewing period, the medicament may be released quickly, resulting in a fast release. This would allow a chewing gum coating to be a carrier for an active medicament, specifically an antacid with these fast release characteristics. For example, U.S. Pat. No. 4,867,989 discloses a chewing gum composition coated with an outer shell containing layers of a mineral compound and a coating syrup, but this patent states that the mineral compound must be added separately and not dispersed in the syrup used to make the coating.
Antacids are usually taken on an “as needed” basis to relieve gastrointestinal disturbances mostly due to dietary indiscretions. These antacids are generally insoluble inorganic salts such as calcium carbonate, magnesium carbonate, calcium hydroxide, magnesium hydroxide, or aluminum hydroxide. Antacids readily neutralize acids in the gastrointestinal (GI) tract and are commonly available in or as antacid tablets. Some typical consumer antacid products are: TUMS, which contains calcium carbonate; MILK of MAGNESIA, which contains magnesium hydroxide, and MAALOX PLUS, which contains a combination of aluminum hydroxide and magnesium hydroxide along with simethicone. Some of these antacid products also include an antigas agent called simethicone to eliminate gas buildup in the GI tract. Other consumer products contain only simethicone as the active ingredient, such as MYLANTA GAS, GAS-X, and PHAZYME.
Previously, antacids have been added to chewing gum and in a chewing gum coating, but some products have not been totally consumer acceptable. The large amount of active antacid needed for effectiveness does not lend itself to giving a good tasting product. Also, the presence of sugar in the antacid chewing gum or coated on the chewing gum of some products is not consumer acceptable because sugar causes dental caries.
A sugarless coated chewing gum produced having an antacid in a sorbitol base coating is currently being sold under the trademark CHOOZ®. It has been found that by adding the antacid to a gum coating, the antacid is quickly released from the chewing gum into saliva and into the gastrointestinal (GI) tract. Relief from GI acidity is quickly obtained, but little relief from gas formation is provided. It would be desirable to have not only fast relief, but relief from gas formation. Thus, there is a need for a way to make coated chewing gum products that provide for gas relief, as well as being acceptable to the consumer from taste and other standpoints.
SUMMARY OF THE INVENTION
It has been found that an antigas agent such as simethicone can be provided in a chewing gum coating to provide relief from gas formation, and that the antigas agent is able to act quickly once the gum product is placed in the mouth.
In a first aspect, the invention is a method of making coated chewing gum products containing an antigas agent comprising the steps of: providing chewing gum cores; providing a coating syrup comprising a bulk sweetener; providing an antigas agent; and applying the antigas agent and coating syrup to the cores and drying the syrup to produce a coating on the cores, the coating containing the antigas agent.
In a second aspect, the invention is a coated chewing gum product containing an antigas agent comprising: a chewing gum core and a coating on the core, the coating comprising an antigas agent.
In a third aspect, the invention is a method of delivering an antigas agent to an individual that provides relief in the gastrointestinal tract comprising the steps of: providing chewing gum cores; providing a coating syrup comprising a bulk sweetener; providing simethicone; applying the simethicone and coating syrup to the cores and drying the syrup to produce a coating on the cores, the coating containing from about 5 mg to about 200 mg simethicone; and chewing the coated chewing gum product in the mouth and swallowing the coating, the coating dispersing and dissolving to provide simethicone as an antigas agent in the gastrointestinal tract.
Preferred embodiments of the invention include the addition of a neutralizing antacid in the coating, and may also include an acid blocker such as a histamine H
2
-receptor antagonists. These agents inhibit or block the secretion of gastric acid by binding to a specific histamine receptor on the parietal (acid secreting) cell membranes located in the stomach. These agents, which may be added to the chewing gum center or to the coating containing the antigas agent, are used for extended relief of gastrointestinal disturbances and extended relief from stomach acidity. Examples of histamine H
2
-receptor antagonists are cimetidine, ranitidine and its active salt, nizatidine and famotidine, with famotidine being preferred.
The administration of an antigas agent, and preferably a neutralizing antacid as well, that is contained in a chewing gum coating, provides an effective relief from many gastrointestinal disturbances.
It is believed that providing a larger particle size antacid in a chewing gum coating makes it even more effective and longer lasting. Thus, an advantage of a preferred embodiment of the present invention is administering an antacid to an individual that has a larger particle size than is typically administered orally, giving extended relief while still achieving the effect of fast relief.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
As used herein, the term “chewing gum” includes bubble gum and all other types of chewing gum. Unless specified otherwise, all percentages are weight percentages.
As mentioned above, products made by the present invention will preferably include an antacid, such as calcium carbonate. The antacid will preferably be included as part of the coating syrup used to prepare a coated chewing gum product. A typical syrup may contain a polyol, suspended calcium carbonate, simethicone, a binding agent, a high-intensity sweetener and a whitener.
In a preferred embodiment of the present invention, the antacid is contained in the coating of chewing gum products, which allows a chewing gum coating to be a carrier for the antacid and the antigas agent (also sometimes referred to as an antiflatulent). Accordingly, as the chewing gum is chewed, the active antacid and antiflatulent in the gum coating is released into the saliva and ingested to give relief from gastrointestinal disturbances in the GI tract.
The preferred antacids are generally carbonate or hydroxide salts of calcium, magnesium, aluminum, or bismuth, and are generally very water insoluble. Other antacids such as sodium bicarbonate, calcium bicarbonate, and other carbonates, silicates, and phosphates may be used in this invention. When these materials are mixed with acids in the GI tract, the acids are readily neutralized to give relief from GI disturbances.
Antiflatulents may be added to an antacid gum coating to be effective antigas materials and eliminate trapped wind. The most common antigas material is dimethicone (dimethyl polysiloxane) and when mixed with silic
Barkalow David G.
Greenberg Michael J.
Hammond John E.
Marske Scott W.
Mazzone Philip
Brinks Hofer Gilson & Lione
Corbin Arthur L.
Shurtz Steven P.
WM. Wrigley Jr. Company
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