Immobilization of flavin adenine dinucleotide (FAD) onto carbon cloth and its application as working electrode in an electroenzymatic bioreactor

► FAD immobilized carbon cloth was employed as working electrode. ► NADH regeneration with enzymatic reaction in same microreactor was reported. ► Microreactor was investigated for l-lactate production. ► FAD immobilized carbon cloth performed better than bare carbon cloth.