# Dynamics of Microbial Community Structure and Metabolites during Mulberry Ripening
## 3 Results and Discussion
### Dynamic Changes in Volatile Flavour Compounds in WHDS during Ripening
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**No.** & **Compounds** & **S1** & **S2** & **S3** & **S4** & **S5** \\ \hline \multirow{3}{*}{1} & Alcohols & & & & \\
1 & 3-Methyl-1-butanol & \(15.63\pm 0.37^{\text{e}}\) & \(55.27\pm 2.00^{\text{d}}\) & \(72.27\pm 2.14^{\text{c}}\) & \(164.53\pm 7.03^{\text{b}}\) & \(176.34\pm 7.89^{\text{a}}\) \\
2 & 2-Octanol & \(32.02\pm 0.84^{\text{d}}\) & \(32.03\pm 0.43^{\text{d}}\) & \(91.03\pm 3.00^{\text{b}}\) & \(61.20\pm 0.80^{\text{c}}\) & \(114.10\pm 5.90^{\text{a}}\) \\
3 & 2,3-Butanediol & \(40.45\pm 1.60^{\text{e}}\) & \(117.20\pm 3.61^{\text{d}}\) & \(149.98\pm 3.89^{\text{e}}\) & \(343.12\pm 8.89^{\text{b}}\) & \(371.44\pm 13.43^{\text{a}}\) \\
4 & Terpineol & ND & ND & ND & \(12.08\pm 0.20\) & ND \\
5 & Propenediol & ND & ND & ND & ND & \(9.21\pm 0.18\) \\
6 & 1,2,3-Propenediol & \(40.16\pm 0.68^{\text{e}}\) & \(95.96\pm 2.24^{\text{d}}\) & \(119.05\pm 2.81^{\text{c}}\) & \(156.10\pm 7.18^{\text{b}}\) & \(144.73\pm 1.94^{\text{a}}\) \\
7 & Phenethyl alcohol & \(2.76\pm 0.07^{\text{e}}\) & \(13.20\pm 0.32^{\text{d}}\) & \(15.39\pm 0.36^{\text{c}}\) & \(33.37\pm 0.77^{\text{a}}\) & \(16.92\pm 0.67^{\text{b}}\) \\  & Acids & & & & \\
8 & Acetic acid & \(33.65\pm 0.54^{\text{d}}\) & \(68.79\pm 2.07^{\text{c}}\) & \(98.03\pm 2.58^{\text{b}}\) & \(124.53\pm 0.42^{\text{a}}\) & \(124.56\pm 1.25^{\text{a}}\) \\
9 & Butyric acid & \(5.93\pm 0.10^{\text{d}}\) & ND & \(8.58\pm 0.14^{\text{c}}\) & \(32.36\pm 0.79^{\text{a}}\) & \(10.98\pm 0.18^{\text{b}}\) \\
10 & Lactic acid & ND & ND & ND & \(65.79\pm 1.48^{\text{a}}\) & \(8.06\pm 0.14^{\text{b}}\) \\
11 & Capric acid & ND & ND & \(11.76\pm 0.20^{\text{c}}\) & \(24.26\pm 0.58^{\text{a}}\) & \(17.88\pm 0.53^{\text{b}}\) \\  & Aldehydes & & & & \\
12 & Isovaleric aldehyde & \(3.74\pm 0.09^{\text{e}}\) & \(11.97\pm 0.24^{\text{d}}\) & \(19.77\pm 0.27^{\text{c}}\) & \(36.02\pm 0.85^{\text{b}}\) & \(37.15\pm 0.63^{\text{a}}\) \\
13 & Furfural & \(1.88\pm 0.03^{\text{d}}\) & \(2.27\pm 0.07^{\text{c}}\) & \(2.55\pm 0.02^{\text{c}}\) & \(7.81\pm 0.38^{\text{a}}\) & \(3.63\pm 0.08^{\text{b}}\) \\
14 & Phenylacetaldehyde & \(1.72\pm 0.02^{\text{d}}\) & \(1.99\pm 0.10^{\text{d}}\) & \(5.10\pm 0.11^{\text{c}}\) & \(8.29\pm 0.11^{\text{b}}\) & \(9.14\pm 0.39^{\text{a}}\) \\  & Ketones & & & & \\
15 & 3-Hydroxydibutanone & \(4.06\pm 0.04^{\text{e}}\) & \(11.73\pm 0.39^{\text{d}}\) & \(17.26\pm 0.06^{\text{c}}\) & \(37.51\pm 0.79^{\text{a}}\) & \(32.71\pm 1.12^{\text{b}}\) \\
16 & Hydroxyacetone & ND & ND & ND & \(15.40\pm 0.41\) & ND \\  & Esters & & & & \\
17 & Ethyl formate & ND & \(3.37\pm 0.06\) & ND & ND & ND \\
18 & Ethyl butyrate & \(1.56\pm 0.03^{\text{e}}\) & \(4.83\pm 0.09^{\text{c}}\) & \(4.06\pm 0.14^{\text{d}}\) & \(8.13\pm 0.19^{\text{b}}\) & \(11.97\pm 0.16^{\text{a}}\) \\
19 & Ethyl acetate & ND & \(19.03\pm 0.44^{\text{c}}\) & \(26.91\pm 0.79^{\text{b}}\) & \(53.23\pm 0.92^{\text{a}}\) & \(53.61\pm 0.71^{\text{a}}\) \\
20 & Ethyl benzoate & \(1.40\pm 0.04^{\text{e}}\) & \(3.00\pm 0.02^{\text{d}}\) & \(6.26\pm 0.13^{\text{c}}\) & \(8.89\pm 0.09^{\text{a}}\) & \(7.80\pm 0.15^{\text{b}}\) \\
21 & Methyl hexanoate & \(3.00\pm 0.06^{\text{e}}\) & \(10.89\pm 0.49^{\text{d}}\) & \(21.82\pm 0.64^{\text{c}}\) & \(27.68\pm 0.58^{\text{a}}\) & \(23.66\pm 0.66^{\text{b}}\) \\
22 & Ethyl caproate & \(2.51\pm 0.04^{\text{b}}\) & ND & ND & \(13.71\pm 0.42^{\text{a}}\) & ND \\
23 & Ethyl propionate & \(6.55\pm 0.11^{\text{b}}\) & ND & ND & ND & \(41.90\pm 0.96^{\text{a}}\) \\
24 & Ethyl valerate & \(1.80\pm 0.03^{\text{a}}\) & \(3.66\pm 0.06^{\text{b}}\) & ND & ND & ND \\  & Others & & & & & \\
25 & Phenol & \(1.21\pm 0.02^{\text{b}}\) & ND & \(6.02\pm 0.22^{\text{a}}\) & ND & ND \\
26 & Terpenediene & \(9.06\pm 0.21^{\text{b}}\) & ND & \(44.34\pm 0.75^{\text{a}}\) & \(45.08\pm 0.62^{\text{a}}\) & \(44.24\pm 1.35^{\text{a}}\) \\ \hline \hline \end{tabular} Note: Different lowercase letters represent significant differences in factors at \(p<0.05\).  
\end{table}