Abstract
Background: Selliera radicans was recognized as one of the foods consumed by the oldest human settlement in America (Monte Verde, Chile) that had a diet with a high component of plants. Objective: This study aims at investigating nutritional and functional characteristics of S. radicans, a native halophyte from Chile. Materials and Methods: An analysis of total protein, carbohydrate, ash, and moisture from S. radicans leaves was performed, using standard methods. The content of macro and micronutrients was quantified by atomic absorption spectrometry. The inulin content was carried out based on the Seliwanoff reactions. S. radicans leaves were extracted with methanol and the total content of phenolic and flavonoids and antioxidant activity were evaluated by spectroscopic method. Results: Leaves from cultivated plants proved to be a suitable source of proteins (7.5 % on DW), ash (6.8 % on DW), and a wide range of macro and micronutrients, where Ca, K, and Na had the highest values. In addition, inulin (2.3% on DW), total phenolics (63.4 GAE/g LDW) and flavonoids (21.8 QE/g LDW), and antioxidant capacity (10 TE/g LDW) were noted. Conclusions: According to the results, cultivated S. radicans leaves are promising sources of food with beneficial health properties.
Highlights
The wide range of edaphoclimatic variables that characterize Chile is reflected in its large and specific vegetal biodiversity
The Selliera radicans plants grown in this greenhouse are originated from wild samples of this species collected from Vichuquén (Maule Region, 34°51' SL-72°00' WL), Chile
To validate the proposed methodology and compare the inulin content obtained from S. radicans, the inulin content was determined in other natural sources
Summary
The wide range of edaphoclimatic variables that characterize Chile is reflected in its large and specific vegetal biodiversity. The content of Ca, Na, K, Mg, Fe, Zn, Cu and Mn was spectrophotometrically determined using an atomic absorption equipment (Agilent 280FS AA).[30] For the analysis of inorganic substances, samples of Selliera radicans leaves were washed with bidistilled water.
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