## 3 Results and Discussion
### Molecular Dynamics Simulation of the Interaction Between Lipid Molecules and Ethanol Molecules
\begin{table}
\begin{tabular}{c c c c c} \hline  & **Water Solution** & **53\% ABV** & **53\% ABV + 4\% Lipid** & **53\% ABV + 8\% Lipid** \\ \hline Ethyl caproate & 0.1494 \(\pm\) 0.0345 \({}^{\rm c}\) & 0.0574 \(\pm\) 0.0025 \({}^{\rm a}\) & 0.0267 \(\pm\) 0.0035 \({}^{\rm b}\) & 0.0179 \(\pm\) 0.0013 \({}^{\rm b}\) \\
2-Heptanol & 0.0405 \(\pm\) 0.0034 \({}^{\rm a}\) & 0.0375 \(\pm\) 0.0035 \({}^{\rm a}\) & 0.0283 \(\pm\) 0.0034 \({}^{\rm ab}\) & 0.0212 \(\pm\) 0.0020 \({}^{\rm b}\) \\ Ethyl heptanoate & 0.1669 \(\pm\) 0.0438 \({}^{\rm a}\) & 0.1356 \(\pm\) 0.0146 \({}^{\rm b}\) & 0.0252 \(\pm\) 0.0030 \({}^{\rm c}\) & 0.0193 \(\pm\) 0.0014 \({}^{\rm c}\) \\ Ethyl lactate & 0.0050 \(\pm\) 0.0004 \({}^{\rm c}\) & 0.1004 \(\pm\) 0.0089 \({}^{\rm a}\) & 0.0362 \(\pm\) 0.0047 \({}^{\rm b}\) & 0.0100 \(\pm\) 0.0005 \({}^{\rm c}\) \\
1-Nonanal & 0.1818 \(\pm\) 0.0038 \({}^{\rm a}\) & 0.1143 \(\pm\) 0.0110 \({}^{\rm b}\) & 0.0581 \(\pm\) 0.0065 \({}^{\rm c}\) & 0.0181 \(\pm\) 0.0018 \({}^{\rm d}\) \\ Ethyl caprylate & 0.1193 \(\pm\) 0.0145 \({}^{\rm a}\) & 0.1064 \(\pm\) 0.0083 \({}^{\rm a}\) & 0.0429 \(\pm\) 0.0048 \({}^{\rm b}\) & 0.0151 \(\pm\) 0.0013 \({}^{\rm c}\) \\ Trimethyl pyrazine & 0.0087 \(\pm\) 0.0010 \({}^{\rm c}\) & 0.0651 \(\pm\) 0.0038 \({}^{\rm a}\) & 0.0482 \(\pm\) 0.0052 \({}^{\rm b}\) & 0.0327 \(\pm\) 0.0030 \({}^{\rm b}\) \\ Tetramethyl pyrazine & 0.0092 \(\pm\) 0.0010 \({}^{\rm c}\) & 0.0738 \(\pm\) 0.0043 \({}^{\rm a}\) & 0.0423 \(\pm\) 0.0043 \({}^{\rm b}\) & 0.0456 \(\pm\) 0.0024 \({}^{\rm b}\) \\ Butyric acid & 0.0180 \(\pm\) 0.0021 \({}^{\rm c}\) & 0.1029 \(\pm\) 0.0082 \({}^{\rm a}\) & 0.0705 \(\pm\) 0.0056 \({}^{\rm b}\) & 0.0227 \(\pm\) 0.0038 \({}^{\rm c}\) \\ Phynyacetaldehyde & 0.0015 \(\pm\) 0.0002 \({}^{\rm c}\) & 0.2681 \(\pm\) 0.0261 \({}^{\rm a}\) & 0.0513 \(\pm\) 0.0050 \({}^{\rm b}\) & 0.0113 \(\pm\) 0.0011 \({}^{\rm c}\) \\
1-Nonanal & 0.0150 \(\pm\) 0.0003 \({}^{\rm c}\) & 0.1166 \(\pm\) 0.0179 \({}^{\rm a}\) & 0.0742 \(\pm\) 0.0087 \({}^{\rm b}\) & 0.0179 \(\pm\) 0.0023 \({}^{\rm c}\) \\ Isovaleric acid & 0.0152 \(\pm\) 0.0002 \({}^{\rm b}\) & 0.0440 \(\pm\) 0.0064 \({}^{\rm a}\) & 0.0358 \(\pm\) 0.0034 \({}^{\rm a}\) & 0.0090 \(\pm\) 0.0007 \({}^{\rm b}\) \\
1-Decanol & 0.0350 \(\pm\) 0.0003 \({}^{\rm a}\) & 0.0608 \(\pm\) 0.0071 \({}^{\rm a}\) & 0.0357 \(\pm\) 0.0029 \({}^{\rm b}\) & 0.0182 \(\pm\) 0.0022 \({}^{\rm c}\) \\ Ethyl phenylacetate & 0.0014 \(\pm\) 0.0001 \({}^{\rm c}\) & 0.0560 \(\pm\) 0.0078 \({}^{\rm a}\) & 0.0369 \(\pm\) 0.0038 \({}^{\rm b}\) & 0.0450 \(\pm\) 0.0024 \({}^{\rm ab}\) \\ Phenol & 0.0300 \(\pm\) 0.0035 \({}^{\rm a}\) & 0.0220 \(\pm\) 0.0018 \({}^{\rm ab}\) & 0.0168 \(\pm\) 0.0020 \({}^{\rm ab}\) & 0.0094 \(\pm\) 0.0009 \({}^{\rm b}\) \\ Heptanoic acid & 0.0136 \(\pm\) 0.0005 \({}^{\rm b}\) & 0.0540 \(\pm\) 0.0052 \({}^{\rm a}\) & 0.0268 \(\pm\) 0.0028 \({}^{\rm a}\) & 0.0095 \(\pm\) 0.0003 \({}^{\rm b}\) \\ Octanoic acid & 0.0125 \(\pm\) 0.0015 \({}^{\rm c}\) & 0.0638 \(\pm\) 0.0058 \({}^{\rm a}\) & 0.0355 \(\pm\) 0.0017 \({}^{\rm b}\) & 0.0138 \(\pm\) 0.0005 \({}^{\rm c}\) \\ p-Cresol & 0.0004 \(\pm\) 0.0001 \({}^{\rm c}\) & 0.0499 \(\pm\) 0.0038 \({}^{\rm a}\) & 0.0299 \(\pm\) 0.0032 \({}^{\rm b}\) & 0.0102 \(\pm\) 0.0006 \({}^{\rm c}\) \\
4-Ethylphenol & 0.0333 \(\pm\) 0.0028 \({}^{\rm a}\) & 0.0208 \(\pm\) 0.0020 \({}^{\rm ab}\) & 0.0158 \(\pm\) 0.0012 \({}^{\rm b}\) & 0.0138 \(\pm\) 0.0009 \({}^{\rm b}\) \\ \hline \end{tabular}  
* The \({}^{\alpha\alpha}\)\({}^{\alpha\prime}\)\({}^{\alpha\prime}\)\({}^{\alpha\prime}\)\({}^{\alpha\prime}\)\({}^{\alpha\prime}\) after the numbers represents the significant level of the equilibrium constant for the same compound in different solutions.  
\end{table} 
Table 2: Changes in equilibrium constant under the influence of lipid. lipid could interact with the ethanol, weakening the interaction force between the ethanol and the water molecules, releasing more water to combine with the compounds, and thus weakening their release intensities.