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Sucrose Concentration and Fermentation Temperature Impact the Sensory Characteristics and Liking of Kombucha

Cohen, Gil
Sela, David A
Nolden, Alissa A
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Journal Article
Publication Date
2023-08-19
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Abstract

Kombucha is a fermented tea beverage consumed for its probiotics and functional properties. It has a unique sensory profile driven by the properties of tea polyphenols and fermentation products, including organic acids. Fermentation temperature and sucrose content affect the fermentation process and the production of organic acids; yet less is known about their impacts on the sensory profile and consumer acceptance. Thus, we aimed to examine the impact of sucrose concentration and fermentation temperature on sensory attributes and liking. For this study, kombucha tea was fermented at three different concentrations of sucrose and fermented at two temperatures for 11 days. Fermentation was monitored by pH, brix, and titratable acidity, and consumers ( = 111) evaluated the kombucha for sensory attributes and overall liking. The fermentation temperature resulted in significant differences in titratable acidity, with higher temperatures producing more organic acids, resulting in higher astringency, and suppressed sweetness. The lower fermentation was reported as significantly more liked, with no difference in liking between the 7.5% and 10% sucrose kombucha samples. Fermentation temperature had the greatest impact on the sensory profile rather than sucrose concentration, which had a greater effect on the fermentation rate and production organic acids.

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Cohen G, Sela DA, Nolden AA. Sucrose Concentration and Fermentation Temperature Impact the Sensory Characteristics and Liking of Kombucha. Foods. 2023 Aug 19;12(16):3116. doi: 10.3390/foods12163116. PMID: 37628115; PMCID: PMC10453479.

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DOI
10.3390/foods12163116
PubMed ID
37628115
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Copyright: © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).