Global Journal of Science Frontier Research, D: Agriculture and Veterinary, Volume 22 Issue 1

well as it is required in the synthesis of collagen and mobilization of iron (Kibar y Temel, 2015).The edible parts of the plants studied are shown to be a moderate source of this trace element, which represents 15.6% (wild species) and 41.1% (cultivated species) of 100 g of their fresh consumption, considering that the recommended daily consumption is 0.9 mg/day (Pinela et al ., 2017). c) Bioactivecomponents The bioactive components of this study that are antioxidants, phenolic compounds, and chlorophylls, in plants are involved in growth, reproduction and defense against pathogens and known as secondary metabolites. For humans, these compounds exert beneficial effects due to their biological activity that promotes health (Pandey y Rizvi, 2009).Therefore, these bioactive molecules affect the nutritional quality of foods since they provide functionality to the food. The content of total antioxidants (TAO), total phenolic compounds (PFT) and total chlorophyll (Chl) of the undervalued wild plants are presented in Figure 2. Figure 2: Bioactive compounds: mean values: AOT=total antioxidants ( μ mol TE·100 g -1 pf); PFT= total polyphenols (mg GAE·100 g -1 ); total Chl=total chlorophyll (as chlorophyll a +b ) (mg·100 g -1 ) The amount of total antioxidants in the fresh samples of both plants ranged from 4645.53 to 7135.0 ( μ mol TE·100 g -1 ) for the wild species compared to their cultivated counterparts (4392.2-4609.9 μ mol TE·100 g -1 ) with significant differences between both growth systems. On the contrary, the content of total phenolic compounds did not present significant differences between the growth systems for P. ruderale species. However, in P. oleracea asignificant difference were observed between cultivated (99.1 mg GAE·100 g -1 ) and wild (318.9 mg GAE·100 g -1 ). The amount of chlorophylls in the fresh samples was higher in the wild species of both plants, although there were only significant differences in P. oleracea. In general, both species exhibit high levels of bioactive compounds, especially total antioxidants, which are higher in wild species. In some plants, antioxidant activity is correlated with phenolic compounds. (Conde-Hernandez yGuerrero- Beltrán, 2014).In our study the positive correlation was only observed in the case of the species P. oleracea . The total content of phenolic compounds is much higher than that reported by Kim et al . (2016) for the green leaves of the “Simpson Elite” variety lettuce (65-67 mg 100 g -1 ) and the red leaves of the “Red Cross” variety (250-260 mg 100 g -1 ).In contrast, the wild leaves of Tunisian P. oleracea studied by Dabbou et al. (2020) contain a higher amount of phenols than that found in this study for the same species. The leaves of Mediterranean P. oleracea reported by Tardío et al. (2016) showed results in phenolic compounds (270 mg 100 g -1 ) lower than that of this study, for the same species in wild conditions and higher than in its cultivated counterpart. Chlorophylls were analyzed in this study as part of the bioactive compounds and are the pigments responsible for the green color of leaves. In all the © 2022 Global Journals 1 Year 2022 38 Global Journal of Science Frontier Research Volume XXII Issue ersion I VI ( D ) Influence of Cultivation Conditions on the Nutritional Composition and Bioactive Components of Two Undervalued Edible Plants ( Porophyllum Ruderale and Portulaca Oleracea )