# Phenolic Compounds and Antioxidant Activity in Edible Flower Species from Oxaxa
## 4 Discussion
### Composition of Inflorescences of Izote (Y. filifera)  
The analysis of polyphenol and flavonoid concentrations and antioxidant activity in izote inflorescences revealed significant differences between population samples from different geographical origins, indicating that the environmental conditions of the growth site influence the contents of phenolic compounds and their antioxidant actions. The variation \begin{table}
\begin{tabular}{l c c c c} \hline \hline \multirow{2}{*}{**Communities of Origin of Samples Evaluated**} & \multirow{2}{*}{\begin{tabular}{c} **Total** \\ **Polyphenols** \\ **(mg GAE g\({}^{-1}\))** \\ \end{tabular} } & \multirow{2}{*}{\
\begin{tabular}{c} **Flavonoids** \\ **(mg g\({}^{-1}\))** \\ \end{tabular} } & \multirow{2}{*}{
\begin{tabular}{c} **Antivox. Activity** \\ **(\(\mu\)mol TE g\({}^{-1}\))** \\ \end{tabular} } \\  & **(mg GAE g\({}^{-1}\))** & & & \\ \hline Ayotzintepec 1 (TE-PA5) & 3.30 c 2 & 2.36 bc & 1.32 c-e & 14.5 c & 13.9 b \\ Ayotzintepec 2 (TE-PA6) & 3.23 c & 2.46 b & 1.72 a & 15.1 b & 14.4 b \\ Ayotzintepec 3 (TE-PA7) & 2.96 d & 2.20 d & 1.27 c-f & 13.1 d & 11.7 d \\ Jalapa de Diaz 1 (TE-PA2) & 2.14 g & 2.29 cd & 1.04 d–f & 12.2 e & 5.9 g \\ Jalapa de Diaz 2 (TE-PA3) & 2.42 f & 2.30 cd & 1.24 c–f & 13.5 d & 7.7 e \\ Jalapa de Diaz 3 (TE-PA4) & 2.07 g & 1.91 e & 0.96 f & 10.1 f & 5.7 g \\ Santiago Jocotepce & 3.36 bc & 2.19 d & 1.52 a-c & 14.9 bc & 12.56 c \\ San J. Bautista V. Nacional & 2.59 e & 2.46 b & 1.36 b-d & 13.2 d & 8.3 e \\ Santa Maria Jacatepec 1 (TE-PAS) & 3.45 b & 2.38 bc & 1.54 a-c & 14.7 bc & 14.5 b \\ Santa Ma. Jacatepec 2 (TE-PA9) & 3.64 a & 2.61 a & 1.69 ab & 17.0 a & 17.4 a \\ Santa Ma, Jacatepec 3 (TE-PA10) & 1.86 h & 2.39 bc & 1.03 ef & 12.3 e & 6.8 f \\ \hline \hline \end{tabular} \({}^{\dagger}\)CE and QE, catechin and quercetin equivalents, respectively; 2 within the columns, means with the same letter do not differ significantly (flukey’s test, \(p\)\(\leq\) 0.05).  
\end{table} 
Table 6: Average total polyphenol and flavonoid contents and antioxidant activity in young inflorescences of _C. tepeilote_ collected from different communities in Oaxaca, Mexico. in the contents of polyphenols in this work ranged from 10.1 to 14.6 mg GAE g\({}^{-1}\) (Table 3), while the values estimated by [PERSON] et al. [35] in 51 species of edible wildflowers ranged from 0.50 to 24.36 mg GAE g\({}^{-1}\), suggesting that a part of this variation is due to genetics and possibly a genotype-environment interaction. For example, in _Y. eleplantipes_, [PERSON] et al. [36] estimated a variation of 30.02 mg GAE g\({}^{-1}\), while, in _Y. gloriosa_, [PERSON] et al. [37] estimated an average of 6.63 mg GAE g\({}^{-1}\), where part of the difference is due to species and/or genotypes and environmental conditions. In terms of flavonoid concentration, the variation recorded in catechin equivalents ranged from 2.45 to 4.65 mg g\({}^{-1}\), and that in quercetin equivalents ranged from 1.34 to 3.33 mg g\({}^{-1}\) (Table 3). These values differ from the estimates reported by [PERSON] et al. [37] for _Y. gloriosa_ (12.28 mg CE g\({}^{-1}\) fresh weight). Although comparisons between the results of this study and those of other studies involving different species are not reliable, the phytochemical variation in _Y. filifera_ described here suggests that the ecological conditions at a growing site, genetic differences, and genetic-environmental interactions result in differences in the chemical composition of inflorescences. Additionally, a significant correlation was detected between higher contents of polyphenols and flavonoids and greater antioxidant activity. The results showed that the antioxidant activity of the evaluated populations was strongly influenced by the contents of polyphenols and flavonoids. [PERSON] et al. [16] performed phytochemical analyses of specific compounds in _Y. eleplantipes_. They detected 20 phenolic compounds and noted that this composition indicates high bioactive functional potential in addition to the general composition of this species.