Fig. 8From: Green route to synthesis of valuable chemical 6-hydroxynicotine from nicotine in tobacco wastes using genetically engineered Agrobacterium tumefaciens S33Identification of the product 6-hydroxynicotine purified from the biotransformation reaction mixture. a UV–visible absorption spectrum of purified 6-hydroxynicotine in 0.1-M HCl solution. b HPLC profile of purified 6-hydroxynicotine. c MS profile of purified 6-hydroxynicotineBack to article page