Hexan 1 ol

The following compounds (food grade, purity in parenthesis) were purchased from Sigma-Aldrich (St. Louis, MO, USA): ethyl acetate (≥99%), ethanol (96%), hexanal (≥97%), 4-methylpentan-2-ol (98%), E-2-hexenal (≥95%), hexan-1-ol (≥98%), E-3-hexen-1-ol (97%), E,E-2,4-hexadienal (95%), nonanal (≥98%), acetic acid (≥99.5%), E-2-decenal, pentanoic acid (≥99%), hexanoic acid (≥98%), and E,E-2,4-decadienal (≥89%).

The following chemical standards were used in the aroma base and were obtained from Sigma-Aldrich Co. (St. Louis, MO, USA): ethanol (≥99%), 2,3-butanedione (97%), hexan-1-ol (98%), methionol (≥98%), butanoic acid (≥99%), decanoic acid (≥98%), 2-methylpropanoic acid (99%), 2-methylbutanoic acid (98%), 3-methylbutanoic acid (99%), 2-methylpropyl ethanoate (≥97%), ethyl phenylacetate (≥99%), ethyl 3-methylbutanoate (98%), ethyl 2-methylpropanoate ((≥98%), ethyl 2-methylbutyrate (99%), ethyl butanoate (≥98%), ethyl decanoate (≥99%), ethyl hexanoate (≥99%), ethyl octanoate (≥98%), hexanoic acid (99%), octanoic acid (≥99%), 2-methylpropan-1-ol (≥99%), ethyl acetate (≥99%) and isoamyl acetate (≥99%). Acetic acid (≥99%) was obtained from VWR International (Radnor, PA, USA). The terpenes compound added to the model wine for the treatments were: (S)-(−)-limonene (96%), (R)-(+)-limonene (97%), linalool (≥97%) and α-terpineol, which were purchased from Sigma-Aldrich Co. (St. Louis, MO, USA).

Trimethylene carbonate (TMC, Boehringer Ingelheim, Ingelheim, Germany), stannous octoate (Sn(Oct)₂, Spectrum Chemical MFG Corp., New Brunswick, NJ, USA), chloroform (Merck Millipore, Darmstadt, Germany, Emparta cat. 1.07024.2500, analytical grade), ethanol for membrane washing (Boom B.V., Meppel, The Netherlands, cat. 84050065.5000), ethanol for PTMC precipitation and as non-solvent (Merck Millipore, Darmstadt, Germany, Emsure cat. 1.00983.1000, analytical grade), propan-1-ol (Sigma-Aldrich, Darmstadt, Germany, cat. 279544), butan-1-ol (Sigma-Aldrich, Darmstadt, Germany, cat. 281549), hexan-1-ol (Sigma-Aldrich, Darmstadt, Germany, cat. 471402), poly(ethylene oxide) (PEO) 5,000,000 g/mol (Sigma-Aldrich, Darmstadt, Germany, cat. 189472), pentaerythritol triacrylate (PETA) (Sigma-Aldrich, Darmstadt, Germany, cat. 246794), 2-Hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone (Irgacure 2959) (Sigma-Aldrich, Darmstadt, Germany, cat. 410896) and deuterated chloroform (Sigma-Aldrich, Darmstadt, Germany, cat. 151823) were all used as received. Ultrapure water (MilliQ water) was produced by a Millipore Advantage A10 (Merck Millipore, Darmstadt, Germany). Additional information about the function and MW of the components used in the polymer dopes can be found in Table 1.