A1 Refereed original research article in a scientific journal
Comparison of volatile compounds and sensory profiles of alcoholic black currant (Ribes nigrum) beverages produced with Saccharomyces, Torulaspora, and Metschnikowia yeasts
Authors: Kelanne Niina M., Siegmund Barbara, Metz Tapio, Yang Baoru, Laaksonen Oskar
Publisher: Elsevier
Publication year: 2022
Journal: Food Chemistry
Journal acronym: Food Chem.
Article number: 131049
Volume: 370
eISSN: 1873-7072
DOI: https://doi.org/10.1016/j.foodchem.2021.131049
Web address : https://doi.org/10.1016/j.foodchem.2021.131049
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/66859735
Black currants (Ribes nigrum) were fermented with Saccharomyces and non-Saccharomyces yeasts without added sugar to yield low-ethanol-content beverages. The effects of yeasts on the volatile compounds and sensory characteristics were analysed by HS-SPME-GC-MS, GC-O, and generic descriptive analysis. Ninety-eight volatile compounds were identified from the black currant juice and fermented beverages. Significant increases in the contents of esters (131 %), higher alcohols (391 %), and fatty acids (not present in juice sample) compared to initial juice were observed depending on the yeasts used. GC-O analysis revealed the higher impact of esters on the sensory properties of Saccharomyces bayanus-fermented beverage compared to the Torulaspora delbrueckii-fermented beverage. In the sensory evaluation, non-Saccharomyces yeasts resulted in a higher ‘black currant odour’. However, all beverages were intensely sour, which can be a significant challenge in the development of alcoholic berry beverages.
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