Abstract Sirkencubin syrup is a health-friendly alternative drink consisting of a mixture of honey, vinegar and water. In this study, purple basil sirkencubin syrup and the changes in sirkencubin syrup during two months storage period (1, 10, 20, 30 & 60 days) were investigated. Physicochemical properties, bioactive properties, organoleptic properties, general microbiology, and possible effects on blood pressure in healthy individuals during storage were evaluated. At the end of storage, no significant changes were detected in the physicochemical value of the samples. At the end of the storage period, total phenolic content (mg GAE/L) value of purple basil sirkencubin syrup sample was determined as 17.64% more than the sirkencubin syrup samples. Total antioxidants in purple basil sirkencubin syrup samples were higher than sirkencubin syrup samples. Ascorbic acid contents of the samples decreased during storage. In terms of organoleptic properties, purple basil sirkencubin syrup was more favored by the panelists. In our study, sirkencubin syrup and purple basil sirkencubin syrup had no acute effect on blood pressure. At the end of the study, purple basil sirkencubin syrup was found to be more successful than sirkencubin syrup.

Abstract Ultrasound is a process studied intensively for different products due to the increasing interest in non-thermal technologies. Sirkencubin syrup contains honey and vinegar and is a functional beverage maintaining health. The aim of this study was to examine the effects of the ultrasound process (pH, titratable acidity, brix, phenolic compounds, flavonoids, antioxidants, total sugar, HMF, sensory evaluation andmicrobiological) on ultrasonic and functional sirkencubin syrup. Ultrasound treatments (26 kHz frequency, 60% amplitude, all samples 200 mL, 80 W power) with different times (2, 5, 8, 10 and 15 minutes) were applied using an ultrasonic processor. The increase in ultrasound time increased most bioactive compounds compared to control samples (untreated). Significant decreases in microbiological load were also recorded. The results of this study show that the ultrasound process can be used as a suitable technique for processing sirkencubin syrup by increasing the bioactive compounds and maintaining safety and quality standards with general acceptance by panelists.