Enhancing the Chemical Composition of Kombucha Fermentation by Adding Indian Gooseberry as a Substrate
2023
Tharinee Klawpiyapamornkun | Toungporn Uttarotai | Sunanta Wangkarn | Panee Sirisa-ard | Suwalee Kiatkarun | Yingmanee Tragoolpua | Sakunnee Bovonsombut
Kombucha is a fermented tea beverage obtained by the symbiosis of yeast, acetic acid bacteria and some lactic acid bacteria, and it has many health benefits. The aim of this study was to investigate the potential of adding Indian gooseberry as a substrate to enhance the chemical properties of kombucha. In this study, traditional kombucha made from green tea was compared to kombucha made from green tea blended with various forms of Indian gooseberry, including whole fruit, dried fruit and juice. The fermentation was performed for 21 days and samples were collected every 3 days to enumerate the total number of yeast and bacteria. Physical and chemical properties, including total soluble solids, alcohol content, pH, acetic acid content, total phenolic and flavonoid content, antioxidant activity and organic acids, were analyzed. The results revealed that the dried Indian gooseberry kombucha (DIGK) demonstrated significantly high total phenolic content and total flavonoid content. In addition, DIGK had the highest D-Saccharic acid-1,4 lactone (DSL) on the 9th day of fermentation. This discovery suggests that dried Indian gooseberry can be used as an alternative substrate for kombucha fermentation to create a new type of kombucha beverage with enhanced chemical properties.
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