Tharinee Klawpiyapamornkun, Thida Kaewkod, Toungporn Uttarotai, S. Wangkarn, P. Sirisa-ard, Suwalee Kiatkarun, Y. Tragoolpua, S. Bovonsombut
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引用次数: 0
Abstract
Kombucha is a fermented tea beverage that has gained popularity in recent years due to its potential health benefi ts. In this study, dried Indian gooseberry kombucha (DIGK) was produce on a pre-industrial-scale for 20 days and compare with traditional kombucha (TK) made from green tea. Both products were produced as concentrated kombucha and investigated for their total phenolic content (TPC), total fl avonoid content (TFC), antioxidant activity, organic acids, and antimicrobial activity. The results revealed that DIGK had signifi cantly higher total phenolic compounds (with 5.97 ± 0.21 mg GAE/ml), fl avonoids (with 4.65 ± 0.20 mg QE/ml), and antioxidant activity (11.3-13.5 times) than traditional kombucha TK. The glucuronic, ascorbic and acetic acid of DIGK was higher than TK, while gluconic and D-saccharic acid-1,4-lactone (DSL) were lower than TK. The chemical properties in kombucha increased after the production of concentrated kombucha. The order of increasing values for TPC and antioxidant activity was as follows: concentrated DIGK > DIGK > concentrated TK > TK. Additionally, the determined TFC values showed that the order of increasing values was concentrated DIGK > concentrated TK > DIGK > TK. The concentrated kombucha showed higher antimicrobial activity against pathogenic enteric bacteria than the non-concentrated kombucha, with DIGK had higher activity than TK.
期刊介绍:
The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so.