Abstract:
This research aimed to study eff ect of konjac powder in mulberry jelly gummy products.
The chemical quality of mulberry juice, the optimum amounts of mulberry juice and konjac
powder in mulberry jelly gummy products, were evaluated. The results showed that the optimum
amounts of mulberry juice and konjac powder were 75 g and 3 %, respectively, of the total
ingredients. Mulberry jelly gummy products fortifi ed with konjac powder consisted of
mulberry juice, sugar, gelatin, glucose syrup, konjac powder, citric acid at 41.61 %, 41.50 %,
9.17 %, 3.49 %, 2.91 % and 1.32 %, respectively. The chemical properties consisted of
moisture, carbohydrates, proteins, fats, fi bers, ash at 18.75 %, 71.89 %, 6.88 %, 0.30 %, 1.65 %
and 0.53 % respectively, and total calories were 317.78 kcal/100 g. The total titratable acidity
of citric acid was 0.11 % with the pH of 2.97. The physical properties including hardness (N),
adhesiveness, springiness, cohesiveness, gumminess, chewiness were 277.38 N, -187.23, 0.86,
0.81, 197.64 and 277.76, respectively. The amount of total soluble solids was 21.03 °brix
and water activity (aw) was 0.76. The fi nal product in terms of microorganism properties was
within the Thai community product standard at 520/2547.The consumers accepted the product
at the level of like very much (8.24 scores).