## 1 Introduction
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Solvent** & **Sample** & **Extraction** & \multicolumn{2}{c}{**Analytical Method**} & **Key Findings** & **Ref.** \\ \hline \multicolumn{6}{c}{Extraction with natural deep eutectic solvents (NADESs)} \\ \hline ChCl:Gl (1:4) & & & & \\ ChCl:Ge (1:4) & & & & \\ ChCl:Pe (1:4) & & & & \\ ChCl:Be (1:4) & & & & \\ ChCl:LA (1:4) & & & & \\ ChCl:MA:H\({}_{2}\)O (1:1:3) & _Radix scutellarie_— & Ultrasonic & & & Different DESs were \\ ChCl:Gu (1:1:2) & perennial herb & Troom for 42 & RP-HPLC- & investigated as tunable and \\ Pr:Ge (1:4) & & & & & superior extraction media \\ Pr:Gu:H\({}_{2}\)O (5:3:8) & & & & & for extraction of flavonoids \\ Pr:Fr:H\({}_{2}\)O (1:1:5) & & & & & from _Radix scutellarie_. \\ CitA:Fr:H\({}_{2}\)O (1:1:3) & & & & & \\ CitA:Gu:H\({}_{2}\)O (1:1:5) & & & & & \\ \hline \multicolumn{6}{c}{Mitragyna speciosa} & & The proposed NADES is \\ \multicolumn{6}{c}{Korth. Havil} \\ CitA:Gu (4:1; 5:1; 6:1) & (_Rubiaceae_ & MAE & TPC & & \\ \multicolumn{6}{c}{family—herb} & & & & \\ \hline \multicolumn{6}{c}{_Chamenerion_} \\ ChCl:MalA (1:1) & _angustifolium_ (L.) & & TPC & ChClCiAt is the most \\ ChCl:MA (1:1) & Scop. (fireweed)— & UAE & TPC & effective solvent for the \\ ChCl:CitA (1:1) & perennial herbaceous plant of the & & DPPH & extraction of biologically \\ \multicolumn{6}{c}{_Onagracae_ family} \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Methods and solvents for extraction of antioxidant compounds from herbs and agro-food residues. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Solvent** & **Sample** & \begin{tabular}{c} **Extraction** \\ **Technique** \\ \end{tabular} & \begin{tabular}{c} **Analytical Method** \\ **SpectroM** \\ \end{tabular} & **Key Findings** & **Ref.** \\ \hline ChCl:CiAt (1:1) & & & & & \\ ChCl:LA (1:2) & & & & & \\ ChCl:AceA (1:2) & & & & & \\ ChCl:ForA (1:2) & & & & & \\ ChCl:OxaA (1:1) & & & & & \\ ChCl:Tar:A:H\({}_{2}\)O & & & & & \\ (1:1:1) & & & & & \\ ChCl:Ge (1:2) & & & & & \\ ChCl:Pro (1:2) & & & & & \\ ChCl:Eth (1:2) & & & & & \\ ChCl:Sor (1:1) & & & & & \\ ChCl:For (1:1) & & & & & \\ ChCl:For (1:1) & & & & & \\ ChCl:Xyl:H\({}_{2}\)O (1:1:1) & & & & & \\ ChCl:Suc:H\({}_{2}\)O (1:2:2) & & & & & \\ ChCl:Mal:H\({}_{2}\)O (1:2:2) & & & & & \\ ChCl:Act (1:2) & & & & & \\ MeOH & & & & & \\ MeOH:H\({}_{2}\)O (6:40) & & & & & \\ EtOH & & & & & \\ EtOH:H\({}_{2}\)O (60:40) & & & & & \\ \hline \hline \end{tabular} \
\begin{tabular}{c} \hline  & & & & NADES composed of LA:Gc \\  & & & & displayed significantly \\  & _spicata_ & & & higher capacity than the \\  & & & & & highly efficient EtOH \\ LA:ChCl (3:1) & _officialis_ & & & & regarding the extraction of \\ LA:AceS (3:1) & Dittany (_Origanum_ & & TPC & polyphenols. \\ LA:AceA (3:1) & _dictamus_) & & & & \\ LA:Gc:H\({}_{2}\)O (3:1:3) & & & & & \\ LA:Gc (3:1) & _vulgar_ & & & & \\ EtOH (60\%) & Marjoram & & & & \\  & (_Origanum_ & & & & \\  & _Majorana_)—Greek & & & & \\  & & & & & \\  & & & & & \\  & & & & & \\  & & & & & \\ \hline \hline \end{tabular}
\begin{tabular}{c} \hline  & & & & & The 50\% Ge acidified with 1% ForA was identified as optimal for extracting TPC, while 50\% Ge acidified with 1% CitA can be used for extraction of polyphenols in replacement of EtOH. \\  & & & & & \\ EtOH:H\({}_{2}\)O & (Michx)) pomace & & & & \\
[50:50\%) (1% ForA) & & & & & \\ H\({}_{2}\)O (1% ForA) & & & & & \\ \end{tabular}
\end{table} 
Table 1: _Cont._