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Chemical composition, sensory profile and antioxidant capacity of low-alcohol strawberry beverages fermented with Saccharomyces cerevisiae and Torulaspora delbrueckii

Yang Baoru; Yang Wei; Ma Xueying; Marsol-Vall Alexis; Karhu Saila; Tähti Roni; Laaksonen Oskar; Liu Shuxun

Chemical composition, sensory profile and antioxidant capacity of low-alcohol strawberry beverages fermented with Saccharomyces cerevisiae and Torulaspora delbrueckii

Yang Baoru
Yang Wei
Ma Xueying
Marsol-Vall Alexis
Karhu Saila
Tähti Roni
Laaksonen Oskar
Liu Shuxun
Katso/Avaa
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Academic Press
doi:10.1016/j.lwt.2021.111910
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Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021093048400
Tiivistelmä

There is an increasing demand by consumers for low-alcohol beverages with enhanced flavors and potential health benefits. This study evaluated the effects of cultivars and fermentation with Saccharomyces cerevisiae or Torulaspora delbrueckii on the chemical composition, antioxidant capacity and sensory properties of low-alcohol strawberry beverages. Compared to juice, fermentation increased the contents of ethyl esters but reduced the contents of anthocyanins (~60%) and organic acids (~50%). The cultivar was the most important factor affecting the physicochemical characteristics and antioxidant capacity of fermented beverages. Among the cultivars, the beverages from the ‘Honeoye’ presented the highest sourness, opacity, redness and color density, total anthocyanins and phenolics, and antioxidant capacity but the lowest pungent aroma and ethanol content. Without added sugar, there was no significant difference in ethanol content between fermented beverages produced by S. cerevisiae and T. delbrueckii. Compared to S. cerevisiae, fermentation involving T. delbrueckii resulted in higher contents of anthocyanins and enhanced the color and flavor of the beverages. The results indicated that strawberry cultivars should be considered to produce fermented beverages with consistent physicochemical and sensory properties, and T. delbrueckii can be an alternative yeast for producing low-alcohol beverages from strawberries.

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