Physico-chemical and antioxidant properties of barberry juice powder and its effervescent tablets

Abstract

Background: Barberry fruit is a good source of natural antioxidants and various functional compounds. Different concentrations of maltodextrin (10, 13, and 16% w/w) were used to produce spray-dried barberry juice powder and the powders (50, 60, and 70%) were applied to create effervescent tablets. Results: The results showed that by increasing the amount of maltodextrin concentration, moisture, and water activity decreased (p < 0.05), but antioxidant activity increased. The barberry powder prepared with 13% (w/w) maltodextrin showed appropriate flowability, color, high antioxidant activity, and phenol content. The presence of high amounts of barberry powder in the tablet increased the disintegration time (1.02–4.03 min). Conclusions: The tablet containing 60% barberry powder was selected as the best sample. Based on the results, barberry tablets with good color, high antioxidant activity, and phenolic compounds can be used as a ‘ready-to-drink’ product.[Figure not available: see fulltext.]