Investigation of the Antioxidant Potential of Kombucha Prepared Using Salvia officinalis L.
2024
Cihan Düşgün
Kombucha is a slightly acidic sugary drink made by fermenting sweetened tea. It is known for its numerous health advantages. The objective of this study is to explore the possible effects of Salvia officinalis on enhancing the biochemical characteristics of kombucha. The present investigation compared traditional kombucha, produced using green and black tea, with kombucha derived from S. officinalis, examining their antioxidant properties, total phenolic, and total flavonoid content. The fermentation process lasted for a duration of 14 days. The present study was performed to evaluate the antioxidant activity of fermented S. officinalis. The antioxidant potential was assessed using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and copper (II) reducing antioxidant capacity (CUPRAC) techniques. The DPPH radical reduction percentages were determined to be 93.5±1.65% for kombucha of green tea, 90.6±1.51% for kombucha of black tea, and 88.5±1.68% for kombucha of S. officinalis. According to the CUPRAC results, green tea kombucha was found to have 321.58±2.12 mg TE/g, black tea kombucha 305.91±1.98 mg TE/g and S. officinalis kombucha 301.97±1.78 mg TE/g. Total phenolic content was 154.15±1.22 mg GAE/g for kombucha of green tea, 145.41±1.31 mg GAE/g for kombucha of black tea, and 124.52±1.25 mg GAE/g for kombucha of S. officinalis. The determined value for the total flavonoid content was 101.12±0.98 mg QE/g for kombucha of green tea, 99.41±0.97 mg QE/g for kombucha of black tea, and 92.73±0.78 mg QE/g for kombucha of S. officinalis. The findings indicate that S. officinalis can serve as a substitute medium for kombucha fermentation, resulting in the development of a novel kind of kombucha with similar chemical characteristics.
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