Unraveling the potential of cryotolerant Saccharomyces eubayanus in Chardonnay white wine production was written by Parpinello, Giuseppina Paola;Ricci, Arianna;Folegatti, Barbara;Patrignani, Francesca;Lanciotti, Rosalba;Versari, Andrea. And the article was included in LWT–Food Science and Technology in 2020.Application In Synthesis of Octyl acetate The following contents are mentioned in the article:
This work investigated the suitability of the cryotolerant yeast Saccharomyces eubayanus to ferment Chardonnay must at different temperatures (10掳C, 12掳C, 16掳C, and 26掳C) over two vintages (2013 and 2014). The effect of added nitrogen was also evaluated. The strain’s fermentation parameters (maximum growth rate, lag phase, and asymptotic maximum) and cell growth were compared to the values for two reference Saccharomyces cerevisiae strains. Saccharomyces eubayanus showed its best fermentation performance at low temperatures (10掳C and 12掳C), with optimal kinetic parameters and high sugar consumption. Moreover, wines from the cryotolerant yeast showed a volatile acidity reduction of approx. 50%, and a 9% increase in total polyphenols, compared to the reference yeasts. At 16掳C the cryotolerant and control yeasts performed quite similarly, whereas at 26掳C the former displayed stuck fermentation For both yeasts, at 10掳C the nitrogen content did not affect maximum growth rate, whereas it did at 16掳C. Sensory analyses were run on the 2014 trials, showing differences in color, sweetness, and overall liking among wines obtained at 10掳C, whereas wines obtained at 16掳C differed only in color. Results demonstrate for the first time the Saccharomyces eubayanus suitability for low-temperature fermentation in white wine production, potentially enriching yeast biodiversity in winemaking. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Application In Synthesis of Octyl acetate).
Octyl acetate (cas: 112-14-1) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Application In Synthesis of Octyl acetate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics