## 3 Results
### Individual Phenolic Composition  
The individual chromatograms revealed notable differences, reflecting the extracts' chemical complexity and species-specific variations using a sum of 32 standards (Figure 7; Table 1). In total, 19 compounds were identified in _P. lentiscus_ (Wi; 138.91 mg phenolics g\({}^{-1}\) extract DW), 23 in _H. italicum picardii_ (Su; 27.91 mg phenolics g\({}^{-1}\) extract DW), 14 in _C. mariscus_ (Su; 9.22 mg phenolics g\({}^{-1}\) extract DW) [28], 22 in _P. coronopus_ (Wi; 23.03 mg phenolics g\({}^{-1}\) extract DW), and 21 in _L. monopetulum_ (Su; 25.43 mg phenolics g\({}^{-1}\) extract DW). \begin{table}
\begin{tabular}{c c c c c c c} \hline
**Rt (min)** & **No.** & **Compound** & **_P. lentiscus_** & **_H. italicum_** & _C. mariscus_ & _P. coronopus_ & _L. monopetulum_ \\  & & & **Wi** & **Su** & **Su** + & **Wi** & **Su** \\ \hline
2.6 & 1 & Gallic acid & 13.81 & \textless{}0.01 & 0.01 & \textless{}0.01 & 3.79 \\
4.6 & 2 & 3.4-Dihydroxybenzoic acid & 0.22 & 0.36 & n.d. & 0.33 & 0.27 \\
5.4 & 3 & Neochlorogenic acid & 0.39 & 2.52 & n.d. & 0.07 & 0.52 \\
8.1 & 4 & Gentisc acid & 33.80 & & & 5.53 & 3.79 \\
8.4 & 5 & _p_-Hidroxybenzoic acid & 0.17 & \textless{}0.01 & & \\
9.9 & 6 & Catechin hydrate & 2.43 & 1.92 & 0.77 & 0.12 & \\
10.0 & 7 & 4-Hydroxybenzaldehyde & & & \textless{}0.01 & & \\
10.7 & 8 & 3-Hydroxybenzoic acid & 0.84 & 0.19 & n.d. & 0.14 & 1.24 \\
11.6 & 9 & Vanillic acid & 12.62 & 0.14 & & 0.05 & 0.41 \\
12.2 & 10 & Chlorogenic acid & 1.29 & 9.12 & 2.96 & & 2.12 \\
12.3 & 11 & 4-O-Caffeoylquinic acid & & n.d. & & 1.76 \\
12.6 & 12 & Caffe acid & 0.74 & 0.89 & 0.73 & 0.76 & 6.79 \\
13.5 & 13 & Syringic acid & 2.62 & & 0.35 & & \\
13.6 & 14 & Epigallocatechin gallate & & 0.05 & & \textless{}0.01 & 0.72 \\ \hline \end{tabular}
\end{table} 
Table 1: Identification and quantification of individual phenolic metabolites (mg g\({}^{-1}\) extract) on _P. lentiscus_, _H. italicum picardii_, _C. mariscus_, _P. coronopus_, and _L. monopetulum_ with selected 80% acetone extracts using HPLC-DAD detection. Compounds are numbered according to their retention time (Rt; min). Figure 6: Sample ranking using the Relative Antioxidant Capacity Index (RACI) for each sample, in descending order, based on calculating average standard scores from the data collected in TPC, DPPH, ABTS, CCA, and FRAP assays. PL, _P. lentiscus_; HI, _H. italicum picardii_; LM, _L. monopetulum_; CM, _C. mariscus_; CS, _C. soldanella_; PC, _P. coronopus_; CC, _C. maritima_; MM, _M. marina_; IC, _I. crithmoides_. The predominant metabolites in _C. mariscus_ (Su) were phenolic acids, including chlorogenic acid (**10**; 2.96 mg g\({}^{-1}\) extract DW), ferulic acid (**21**; 1.38 mg g\({}^{-1}\) extract DW), and salicylic acid (**22**; 1.64 mg g\({}^{-1}\) extract DW) [25]. _P. lentiiscus_ stood out as a rich source of ourateacatechin (**16**; 34.72 mg g\({}^{-1}\) extract DW), gentisic acid (**4**; 33.80 mg g\({}^{-1}\) extract DW), epicatechin (**15**; 25.59 mg g\({}^{-1}\) extract DW), gallic acid (**1**; 13.81 mg g\({}^{-1}\) extract DW), and vanillic acid (**9**; 12.62 mg g\({}^{-1}\) extract DW), together contributing 120.54 mg out of 138.91 mg phenolics g\({}^{-1}\) extract DW. In the _H. italicum picardii_ (Su) sample, prominent phenolics included chlorogenic acid (**10**; 9.12 mg g\({}^{-1}\) extract DW), neochlorogenic acid (**3**; 2.52 mg g\({}^{-1}\) extract DW), epicatechin (**15**; 2.38 mg g\({}^{-1}\) extract DW), ourateacatechin (**16**; 1.76 mg g\({}^{-1}\) extract DW), salicylic acid (**22**; 2.59 mg g\({}^{-1}\) extract DW), and luteolin-7-\(O\)-glucoside (**24**; 3.58 mg g\({}^{-1}\) extract DW), accounting for 21.95 mg of the total 27.91 mg phenolics g\({}^{-1}\) extract DW. In _P. coronopus_ (Wi), dominant compounds were gentisic acid (**4**; 5.53 mg g\({}^{-1}\) extract DW), salicylic acid (**22**; 5.36 mg g\({}^{-1}\) extract DW), and luteolin-7-\(O\)-glucoside (**24**; 5.36 mg g\({}^{-1}\) extract DW), which together made up 16.25 mg of the total 23.03 mg phenolics g\({}^{-1}\) extract DW. The _L.