Total Polyphenol, Flavonoid Contents and Antioxidant Activity of Red Kohlrabi Sprouts

This study was conducted to clarify the bioactive activities of red kohlrabi sprouts(Brassica oleracea L. var. gongylodes L.), which were produced using the smart farm and drum-type rotary facilities arranged in a row. We have harvested red kohlrabi sprout vegetables at 6 days after germination which were sprouted at 20℃. Roots were harvested at 90 days after seedling, which were fresh weight 752g/ea. Samples were freeze drying to analyse the bioactive components. We have also examined the bioactive activity of sprouts and roots of kohlrabi after extracting with methanol. Total phenol and flavonoid contents of red kohlrabi sprouts increased significantly more than two times than those of roots. Antioxidant enzyme activity of red kohlrabi sprouts such as SOD, CAT, APX and POD also increased remarkably compared with that of roots. DPPH radical scavenging activity and ABTS radical scavenging activity of red kohlrabi sprouts were higher than those of roots. However, there were lower anti-cancer activities of sprouts against Calu-6 and MCF-7 cell lines than those of roots. Key-words : Kohlrabi, sprout, polyphenol, flavonoid, antioxidation, bioactive activity This study was conducted under the supply of "Korea Small and Medium Business Administration(C0353901)".