Usability of soapwort and horse chestnut saponin extracts as foaming agents in foam mat drying of pomegranate juice

Abstract

BACKGROUND: This study evaluated the usability of saponin-rich extracts (soapwort and horse chestnut) as a foaming agent for foam mat drying of pomegranate juice. RESULTS: According to the foaming and stabilization studies, the optimum conditions were determined as 0.4% of soapwort extract, 0.03% of carboxymethyl cellulose as a stabilizer, and 3 min of whipping time. The foams produced using these conditions were dried at different spreading thicknesses and drying temperatures. The results showed that the thicker spreading thicknesses provided a higher antioxidant activity. On the other hand, drying temperature had a significant effect on all measured parameters except moisture content and water activity. The higher drying temperature caused a greater colour change and a lower content of total phenolics, total monomeric anthocyanins, cyanidin-3-glucoside, and delphinidin-3-glucoside. On the other hand, a higher content of ascorbic acid and better antioxidant activity was determined in the samples dried at 70°C. CONCLUSION: According to the results obtained, spreading thickness of 2 mm and drying temperature of 70°C were suggested for pomegranate juice powder production by foam mat drying. Overall, it was demonstrated that saponin-rich extracts are a good foaming agent alternative that provides foaming at very low concentrations and a product with high quality.

Optimized pulsed electric field‐assisted extraction of biosurfactants from Chubak (Acanthophyllum squarrosum) root and application in ice cream

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Foam drying of aquafaba: Optimization with mixture design

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Bioactive foamulsion gels: a unique structure prepared with gellan gum and Acanthophyllum glandulosum extract

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