Chemo Profiling and Antioxidant Activity of Different Genotypes of Brassica Oleracea Var Acephala Grown Across Kashmir in Different Environments

Green leafy vegetables are gaining significant interest due to their nutritional value and disease-preventing potential. The Kale (Brassica oleracea var. acephala) is known as the queen of vegetables in some parts of the world due to its higher nutritional value. The current comparative study evaluated total phenols, total flavonoids, glucosinolates, and antioxidant activity in thirty different genotypes of kale grown across the Kashmir valley in different environments. The leaves were collected at the edible stage, and the extracts were made using three different solvent systems (80% methanol, 80% ethanol, and water). The majority of the genotypes of kale indicated a difference in the content of bioactive compounds. Based on the accumulation of nutraceutical important phenols, flavonoids, alkaloids, and sterols, the 30 genotypes of kale indicated a difference in bioactive compounds' content. The aqueous extract of K-29 demonstrated the phenolic content (71.68mg/gallic acid/g DW) and 60.98μMol/g DW glucosinolate content. Moreover, the methanolic extract of the K-29 genotype also indicated the higher phenolic content (85.56 mg/gallic acid/g DW), flavonoid content (16.64 mg/quercetin/g DW) as well as antioxidant activity (92.56 μMol FRAP/g DW). The higher antioxidant potential of K-29 is corroborated by its higher metabolic content of phenols and flavonoids.&nbsp