Antioxidants, protein, oil content and fatty acids profiles of chia seeds (Salvia hispanica L.) genotype Tzotzol growing in three tropical ecosystems of Bolivia, Ecuador and Paraguay
2019
Ricardo AYERZA
Chia is a summer annual of the Lamiaceae. The objective of this study was toinvestigate the effect of growing location on the antioxidants content andcomposition in one genotype of chia, and the potential relationship with itsmajor nutritional compounds, as protein, oil, and fatty acids. This study was carried out with black‑spottedchia seeds commercially grown in three different ecosystems, Tropical RainForest, Sub Humid Chaco, and Campo Cerrado, located in Ecuador, Bolivia andParaguay, respectively. Flavonols quercetin, myrcetin, kaempherol, caffeic acid,chlorogenic acid, and SDG lignan compound presence was detected bychromatographic analysis. No significant(P<0.05) differences between seed origins= were found. Total oil content was significantly (P<0.05) higher in the seeds fromEcuador (34.2%) than all other locations, followed by the seeds from Bolivia (32.5%)which was significantly (P<0.05) higher compared to Paraguay (31.6%). The content of α‑linolenic fatty acid inseeds from Ecuador was significantly (P<0.05) higher compared to the seedsfrom all three locations. No significant correlation (P<0.05) between α-linolenic fatty acid and polyphenols content was detected. The resultsindicate that protein content, oil content and fatty acid profilecharacteristics of the chia are affected by the different ecological conditionsof the tested ecosystems, which not affect the polyphenols content, and composition.
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