Enological profile of Saccharomyces cerevisiae yeast isolated from fermenting plum mashes
Journal Title: Acta Scientiarum Polonorum Technologia Alimentaria - Year 2010, Vol 9, Issue 1
Abstract
Background. Śliwowica Łącka is a strong plum brandy (slivovitz) that is produced in a submontane region of Poland by means of spontaneous fermentation of Węgierka plums. The aim of this study was to evaluate enological profile of S. cerevisiae indigenous strains isolated from spontaneous plum mash fermentation.Material and methods. Fourteen strains obtained from three different stages of fermentation (initial, central and final) and characterised by different killer profile were chosen for the analysis. Fermentation assays were performed on the basal synthetic medium with 10% glucose. The fermentation kinetics, basic enological parameters by OIV methods and selected volatile compounds concentration by GC-SPME were analysed.Results. Analysed strains exhibited different fermentation kinetics, as well as produced diversified amounts of studied volatile compounds. The highest ethanol synthesis (over 40 g·dm-3) and fermentation efficiency (over 80%) was found in samples fermented with strains isolated from final stage of fermentation. Cultures from an initial stage were distinguished by higher production of acetaldehyde and acetic acid, and lower of isobutanol, ethanol and ethyl acetate, those originated from central stage showed increased synthesis of ethyl acetate and acetoine, whereas the strains isolated during final stage of fermentation formed more acetaldehyde, acetic acid and fusel alcohols and less esters. Strains that were present throughout the spontaneous fermentation were synthesized average amounts of compounds mentioned above.Conclusions. High diversity of enological profiles among isolated S. cerevisiae strains was determined. The composition of Sliwowica Łącka is strictly dependent on presence and amount of the individual profiles during spontaneous plums fermentation.
Authors and Affiliations
Paweł Satora, Tadeusz Tuszyński, Ewelina Tomczyk
Keywords
Related Articles
- EP ID EP50939
- DOI -
- Views 131
- Downloads 0
A study of antioxidant properties from Garcinia mangostana L. pericarp extract
The present work was undertaken to assess the radical scavenging and antioxidant properties of the mangosteen (Garcinia mangostana L.) pericarp extracts obtained by various solvents and its mixtures of different polarity...
Zanieczyszczenia mikrobiologiczne procesu fermentacji etanolowej
Wstęp. Zanieczyszczenia bakteryjne są poważnym problemem w przemysłowej produkcji bioetanolu w gorzelniach na całym świecie. Niepożądane mikroorganizmy produkują kwasy octowy i mlekowy, które znacznie obniżają wydajność...
Effect of dietary fructans and chromium(III) supplementation on apparent fat digestibility and blood lipid indices in rat
Background. Fructans and chromium(III) are believed to influence lipid and carbohydrate metabolism in animal and human organisms, that can be applied in regulation or improvement of lipid indices, however the importance...
Physicochemical and sensory characteristics of sheep kefir during storage
The aim of the study was physicochemical and sensory characterization of kefir manufactured from sheep milk following its production and storage at refrigerated conditions. Sheep milk inoculated with different starter cu...
Response surface optimization of manufacturing of dietary starch products
Background. The development of food ingredients that beneficially affect the human organism has attracted much interest recently. Especially important seems to be resistant starch i.e. starch fraction which resists hydro...