The effect of pulsed electric fields pre-treatment on the volatile and phenolic profiles of Merlot grape musts at different winemaking stages and the sensory characteristics of the finished wines was written by Arcena, Mylene Ross;Leong, Sze Ying;Then, Stephanie;Hochberg, Martin;Sack, Martin;Mueller, Georg;Sigler, Juergen;Kebede, Biniam;Silcock, Patrick;Oey, Indrawati. And the article was included in Innovative Food Science & Emerging Technologies in 2021.Product Details of 2198-61-0 The following contents are mentioned in the article:
This study investigated the effect of pulsed elec. fields (PEF) applied at different elec. field strengths (up to 41.5 kV/cm) and energy inputs (up to 49.4 kJ/kg) on the volatile and phenolic profiles of Merlot grapes at different stages of winemaking. Immediately after PEF treatment, greater amounts of anthocyanins and phenolics (e.g., catechin) were extracted while 2-hexenal (green aroma) was detected in lower concentrations in PEF-treated musts. At completion of alc. and malolactic fermentations, high-energy PEF treatment generally produced wines with increased anthocyanins, stilbenoids, hydroxycinnamic and hydroxybenzoic acids. A trained sensory panel assessed the sensory attributes of the finished wines using descriptive anal. It was found that those Merlot wines vinified with PEF-treated grapes possessed higher intensities of blackcurrant flavor and odor. The intensity of spice flavor in the Merlot wines also differed significantly between the wines. Overall, PEF treatment has the capability to provide winemakers the means to tailor the extraction of phenolic compounds towards the creation of red wines with distinct sensory characteristics. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Product Details of 2198-61-0).
Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Product Details of 2198-61-0
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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics