Nutraceuticals, antioxidant pigments, and phytochemicals in the leaves of Amaranthus spinosus and Amaranthus viridis weedy species

Abstract Six selected weedy Amaranthus genotypes (three accessions from each species of A. viridis and A. spinosus ) were evaluated in terms of nutrients, minerals, antioxidant constituents and antioxidant activity for the possibilities of weedy species as a vegetable cultivar in a randomized complete block design with three replications. As leafy vegetable, Weedy Amaranthus has remarkable protein, dietary fiber, carbohydrates, Ca, K, Mg, P, S, Fe, Mn, Cu, Zn, Na, Mo, B, chlorophylls, β-cyanins, β-xanthins, betalains, β-carotene, vitamin C, TPC, TFC, and TAC (DPPH and ABTS + ) compared to any cultivated species. The A. viridis genotype WAV7 and A. spinosus genotype WAS13 had the highest nutrients, pigments, vitamins, phenolics, flavonoids, and antioxidant. Hence, these two weedy accessions could be…