\begin{table}[]
\centering
\begin{tabular*}{\columnwidth}{@{}lcc@{}}
\toprule
\multicolumn{1}{c}{\begin{tabular}[c]{@{}c@{}}Organosolv\\ linin\\ precursor\end{tabular}} & \begin{tabular}[c]{@{}c@{}}Average\\ tensile\\ strength\\ (\si{\GPa})\end{tabular} & \begin{tabular}[c]{@{}c@{}}Yield\\ (\si{\percent})\end{tabular} \\ \midrule
Untreated                                                                                  & 0.338                                                                              & 31                                                              \\
Thermally pretreated                                                                       & 0.710                                                                              & 41                                                              \\ \bottomrule
\end{tabular*}
\caption{Comparison of carbon firbres from untreated and thermally pretreated organosolv lignin precursor \cite{bakerThermalEngineeringLignin2009}}
\label{tab:lignin}
\end{table}