antioxidant assay of plant extract

{"title":"Natural broccoli extract,0.5% 1% 5% 98% sulforaphane powder","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/df\/e9\/4d88b37f1c4a21ef7d2f8db40d7c-200x200-1.jpg","attrs":{"Price":"USD PER KG","Brand Name":"Energy spring","Model Number":"ESP050","Minimum Order Quantity":"1kg","Delivery Time":"Within 3working days after payment","Certification":"Kosher and ISO Certification","Place of Origin":"Anhui province","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union","Supply Ability":"500KGS PER WEEK","Packaging Details":"Packed in 40cm*50cm paper-drums and two plastic-bags inside.25kg fiber durm.","Name":"Natural broccoli extract,","Active ingredien":"0.5% 1% 5% 98% sulforaphane","LATIN NAME":"Brassica Oleracea L.","Used part":"Whole herb","Appearance":"Green-yellow powder","Test method":"HPLC"}}