Acidic solid oral compositons without erosive potential in saliva and method for determining erosive potential in saliva
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example 1
Preparation of Solid Candy
[0069]In a mini cooker 800 ml water is added 3 kg isomalt and 0.3 mg sweetener (Acesulfame-K) during stirring. The stirring is continued until a homogenous solution is obtained. Subsequently the temperature is raised to about 162° C. and the mixture is boiled. When the temperature has decreased to 110° C. the stirring is discontinued and the dough is withdrawn from the mini cooker and applied on a heated table.
[0070]The dough is added 4.5 ml red colour (camine E120) and kneaded so as to obtain a uniform distribution of the colour. Then, 6 ml aroma (strawberry and rhubarb in 2:1 ratio) is added and kneaded into the dough. Subsequently, 30 g tartaric acid (mol weight: 151 g / mol) and 49.5 g calcium lactate penta hydrate (mol weight: 308 g / mol) are added and mixed thoroughly with the dough. Long strings of dough are prepared and cut into appropriate pieces of candy. The candy is allowed to cool to room temperature.
[0071]A candy was added an equal amount by weig...
example 2
Preparation of Jellies
[0073]8 g gelatine (250 Bloom) is dissolved completely in 17 g 80° C. water under constant stirring. 4 g dextrose is added to the gelatine solution under constant stirring until the mixture is homogenous. Then, 20 g sucrose and 49 g glucose syrup (48 DE) are added and the stirring is continued until the mixture is homogeneous. This mixture is then boiled until brix 75, which happened at 108° C. (vacuum at 0.6 atm). After the boiling step the mixture is added 10 g tartaric acid (mol weight: 151 g / mol), 16.5 g calcium lactate penta hydrate (mol weight: 308 g / mol), 0.15 ml red colour (camine E120) and 0.6 ml aroma (strawberry and rhubarb in 2:1 ratio) and mixed to obtain a homogenous solution. The pH in the liquid mixture is adjusted with tartaric acid to a pH of 3.2 as measured with a standard pH electrode. A sample was withdrawn and mixed with an equal amount by weight of water. The pH of this diluted sample was measured as pH 3.2. The mole ratio of calcium comp...
example 3
Test for Erosive Potential of Oral Composition
[0075]Candies as produced in example 1 were used in this example to illustrate the erosive potential. A control candy comprising the same components as the example 1 candy except for calcium lactate was also produced.
[0076]Ten randomly selected healthy test persons (5 males and 5 females) sucked 5 grams of the candy habitually for 5 minutes while his / her stimulated whole mouth saliva was collected every 30 seconds for 5 minutes. A closed saliva collection system was used to avoid saliva CO2 evaporation and thus pH changes during collection.
[0077]Immediately after collection, the pH of the saliva was determined in a closed system, and the pH was recorded for each of the collections (i.e. first min, second min, etc.). The saliva was then pored into an open glass and salivary CO2 was removed by vacuum during constant stirring and the sample was acidified (1M HCl) until the pH obtained immediately after collection was reached.
[0078]Pure hydr...
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