The Preparation of Effervescent Tablets with Pomelo By-products
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Abstract:
The effervescent tablets which are made up of extracts from mature and young pomelo seeds and peel were prepared. The physical and chemical indexes of product including hardness, pH value, color difference, disintegration time and antioxidants were determined. Firstly, Limonin content in water extract was tested by HPLC to determine additive amount of Citric acid. Citric acid was used to reduce the bitterness from Limonin without removing it. Secondly, Acacia was added in tablets with different concentration and physicochemical properties were measured for improving the product’s formula and process. According to the result of experiments, we have determined that the best proportion of each ingredients among the list of ingredients for our effervescent tablets: 35.00% of citric acid, 25.00% of sodium bicarbonate, 1.50% of PVP-K30, 2.00% of PEG 6000 (in powder), 22.50% grapefruit powder, 0.75% of stevioside, 7.50% of Xylitol, 5.00% of extract from mature grapefruit skin and young grapefruit skin (8 mg/mL of Acacia was added before freeze-dry), 0.75% of extract from grapefruit kernel. Tabletting in 3.00 MPa was done after the well mixing of all ingredients. The drink made by final tablets is good in clarity. The sugar-acid ratio is in a comfortable range which gives the drink a good taste. Hardness and pH value are in a suitable level. Disintegration time is reasonable. Oxidation resistance of products solution is quite strong.
