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Egg white is one source of protein that has many functions, including as an antimicrobial, antihypertensive, anti-cancer, and this can also be used as a preservative and sweetener. The addition of egg white powder to effervescent tablets with lemon essence is expected to increase protein levels in the tablet. The purpose of this study was to study the physical, chemical and organoleptic characteristics of effervescent tablets by adding egg white powder to the formulation. The study design used a randomized block design (RBD) with the making period as a group. The treatments used were different concentrations of effervescent mix (sodium bicarbonate, citric acid and tartaric acid), that is, 55, 60 and 65%. Data from the test results were tested with analysis of variance (ANOVA), further tests with the Duncan test. The physical characteristics of effervescent tablets with the addition of egg white powder and the difference in the concentration of effervescent mix as a treatment were not significantly different among treatments. The chemical characteristics of egg white effervescent tablets did not change with the treatment concentration of effervescent mix 55, 60 and 65% but the water activity (aw) of the effervescent tablets changed. Increasing the concentration of effervescent mix treatment can reduce the value of aw from 0.58 to 0.50. The addition of albumen powder with different concentrations of effervescent mix resulted in effervescent tablets according to predetermined standards. The organoleptic test results on the overall assessment of egg white powder effervescent tablets were somewhat favorable

The research on The Application of Effervescent Technology of Aloe vera as Functional Drink has been done. The objectives were to obtain effrvescent tablet prefered by the panelist as well as nutritious as aloe vera-based functional food also to obtain appropriate formula resulting good quality of effervescent tablet. Formulation of effervescent tablet with treatments of maltodextrin concentration were done. The result showed that the best formulas of aloe vera effervescent tablet were aloe vera concentration 33%, maltodextrin 7,5%, acid-karbonat total 43%, sorbitol 5%, sukralose 3 % and Polyethylenglicol 8000 %.

The aim of this research was to study the influence of temperature and relative humidity on the quality of the fruit juice effervescent tablet. Sample of the passion fruit effervescent tablet was prepared from passion fruit granular, aspartame, polyetilene glycol, citric acid, and sodium bicarbonate. Variable analyzed was dissolution rate of the tablet during storage. The results indicated that temperature and humidity significantly affect dissolution rate of the fruit juice effervescent tablet. The reason for the decrease in dissolution rate was because at high storage temperature (35oC), sodium bicarbonate was not stable. The bicarbonate amount gradually decreased because it reacted with citric acid. Consequently, when the tablet was dissolved, the reaction between sodium bicarbonate and citric acid was slow. At high relative humidity (85.5%) of storage, the reaction occurred prior to the dissolution due to moisture intake.

The aims of this research were to determine the influences of formula and compression forces on characteristic of effervescent tablet of fruits cereal. Variation of six formulas and five types of compression forces were studied in this research . Variations of the formula were carried on by combining different ratio of citric acid and sodium bicarbonate (1:3, 1:2, 1:1, 3:1, 2:1, and 2:3 w/w) and compression force of 1000, 2000, 3000, 4000, and 5000 N were applied. Characteristic of effervescent tablet of passion fruits evaluated were texture and dissolution rate. The results of research showed that the compression forces significantly influenced (? > 0.05) on the texture and dissolution rate of effervescent tablet. Variations of formula did not significantly influence (? < 0.05) the texture and dissolution rate. The effervescent tablet of passion fruits of good characteristic was produced by citric acid and sodium bicarbonate ratio of 1:2 w/w with compression force of 3000 N.