## 6 Valorization Technologies for Avocado-Derived Biomass through Obtaining Bioactive Compounds
### Phenolic Compounds
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline
**Biomass** & **Cultvir** & **Conditioning** & **Extraction Method** & **Solvent** & **TPC** & **TEAC** & **FRAP** & **Reference** \\ \hline \multicolumn{1}{c}{In terms of biomass weight} & & & & & & & \\ \multicolumn{1}{c}{Peel} & Hass & Air-drying and milling & Scablit extraction & Water & 4.13\({}^{\,1}\) & 17.5\({}^{\,1}\) & 15.2\({}^{\,1}\) & [12] \\ Stone & Hass & Air-drying and milling & Scablit extraction & Water & 0.31\({}^{\,1}\) & 1.7\({}^{\,1}\) & 1.3\({}^{\,1}\) & [12] \\ Stone & Hass & Cutting, wind-dried and milling & Microwave-assisted extraction & 83.9\({}^{\,2}\) & Ethanol & 8.4\({}^{\,1}\) & ND & ND & [83] \\ Stone & Hass A & Drrying, grinding and serving & Scablit extraction & Ethanol & 2.0\({}^{\,1}\) & ND & ND & [83] \\ Stone & Hass B & Drrying, grinding and serving & Scablit extraction & Ethanol & 3.0\({}^{\,1}\) & 46.3\({}^{\,1}\) & ND & [85] \\ Peel & Hass B & Drrying, grinding and serving & Scablit extraction & Ethanol & 107\({}^{\,1}\) & 111.2\({}^{\,1}\) & ND & [85] \\ Stone & Hass B & Drrying, grinding and serving & Supercritical fluid extraction & CO\({}_{2}\) with ethanol & 5.1\({}^{\,1}\) & ND & ND & [85] \\ Peel & Hass B & Drrying, grinding and serving & Supercritical fluid extraction & CO\({}_{2}\) with ethanol & 4.7\({}^{\,1}\) & ND & ND & [85] \\ \hline \multicolumn{1}{c}{In terms of extract weight} & & & & & & & \\ \multicolumn{1}{c}{Peel} & Hass & Air-drying and milling & Scablit extraction & Water & 26.6\({}^{\,2}\) & 112.2\({}^{\,2}\) & 97.8\({}^{\,2}\) & [12] \\ Stone & Hass & Air-drying and milling & Scablit extraction & Water & 1.8\({}^{\,2}\) & 9.9\({}^{\,2}\) & 7.7\({}^{\,1}\) & [12] \\ Stone & - & - & Homogenization & 70\%. Acotone & 6.1\({}^{\,2}\) & ND & ND & [13] \\ Peel & - & - & Homogenization & 70\%. Acotone & 9.0\({}^{\,2}\) & ND & ND & [13] \\ Stone & Hass & Freeze-drying & Homogenization & 50\%. Methanol \(\rightarrow\) 70\%. acetone & 8.1\({}^{\,2}\) & ND & 30.8\({}^{\,2}\) & [20] \\ Peel & Hass & Freeze-drying & Homogenization & 50\%. Methanol \(\rightarrow\) 70\%. acetone & 13.7\({}^{\,2}\) & ND & 54.7\({}^{\,2}\) & [20] \\ Pomae & Hass & Freeze-drying & Homogenization & 50\%. Methanol \(\rightarrow\) 70\%. acetone & 3.6\({}^{\,2}\) & ND & 16.0\({}^{\,2}\) & [20] \\ Wastewater & Hass & Freeze-drying/spring-drying & Homogenization & 70\%. Acotone & 1.6\({}^{\,5.1}\) & ND & 8.0\({}^{\,2.1}\) & [20] \\ Stone & Hass & Chopping and drying & Homogenization & 70\%. Acotone & 4.1\({}^{\,2}\) & ND & ND & [27] \\ Peel & Hass & Cutting and drying & Homogenization & 70\%. Acetone & 5.1\({}^{\,2}\) & ND & ND & [27] \\ Stone & Hass & Milling, lyophilization & Stirring in bath & Methanol & 2.5\({}^{\,2}\) & 12.4\({}^{\,2}\) & 31.7\({}^{\,2}\) & [78] \\ Stone & Hass & Milling, lyophilization & Stirring in bath & 50\%. Ethanol & 3.1\({}^{\,2}\) & 26.4\({}^{\,2}\) & 43.9\({}^{\,2}\) & [78] \\ Stone & Hass & Lyophilization, milling & Ultrasound-assisted extraction & 80\%. Ethanol & 5.7\({}^{\,2}\) & 64.6\({}^{\,2}\) & ND & [79] \\ Peel & Hass & Lyophilization, milling & Ultrasound-assisted extraction & 80\%. Ethanol & 6.4\({}^{\,2}\) & 79.2\({}^{\,2}\) & ND & [79] \\ Stone & Hass & Cutting and freeze-drying & Microwave-assisted extraction & 70\%. Acetone & 30.7\({}^{\,2}\) & 242.5\({}^{\,2}\) & ND & [82] \\ Stone & Hass & Cutting and freeze-drying & Microwave-assisted extraction & 85\%. Ethanol & 25.4\({}^{\,2}\) & 206.2\({}^{\,2}\) & ND & [82] \\ Stone & Hass & Owen-drying and milling & Accelerated solvent extraction & 50\%. Ethanol & ND & 30.0\({}^{\,2}\) & ND & [84] \\ Pomae & Hass & Freeze-drying and milling & Aqueous two-phase systems & Sodium citrate-PEC4000 & 3.3\({}^{\,2}\) & ND & ND & [86] \\ Stone & Hass & Grinding and drying & Boiled, stirred and filtered & Water & 0.6\({}^{\,2}\) & ND & 3.8\({}^{\,2}\) & [87] \\ Peel & Hass & Grinding and drying & Boiled, stirred and filtered & Water & 2.0\({}^{\,2}\) & ND & 9.2\({}^{\,2}\) & [87] \\ Stone & Shepard & Lyophilization and milling & Thermostatic shaking water bath & 80\%. Methanol & 13.4\({}^{\,5}\) & 9.1\({}^{\,4}\) & ND & [88] \\ Peel & Shepard & Lyophilization and milling & Thermostatic shaking water bath & 80\%. Methanol & 16.4\({}^{\,5}\) & 11.2\({}^{\,4}\) & ND & [88] \\ Stone & Hass & Lyophilization and milling & Thermostatic shaking water bath & 80\%. Methanol & 1.0\({}^{\,5}\) & 9.4\({}^{\,4}\) & ND & [88] \\ Peel & Hass & Lyophilization and milling & Thermostatic shaking water bath & 80\%. Methanol & 25.4\({}^{\,5}\) & 16.1\({}^{\,4}\) & ND & [88] \\ \hline \hline \end{tabular}  
* A, from Brazil, B, from Mexico; ND, not determined; values expressed as %, mg/mL, or showed in graphs. \({}^{\,1}\) Dried biomass. \({}^{\,2}\) Dried extract. \({}^{\,3}\) The samples were directly dried. \({}^{\,4}\) Not reporting the basis. \({}^{\,5}\) Expressed in terms of catechin.  
\end{table}