β-Nicotinamide adenine dinucleotide phosphate, also known as oxidized coenzyme.II, an important coenzyme, is nicotinamide adenine dinucleotide.(NAD ⁺)Ribose ring system linked to adenine in2'-Phosphorylation derivatives of position. Oxidized coenzyme typeIIThrough redox reaction, protons, electrons and energy are transferred, and they participate in many metabolic reactions of cells. The synthesis of lipids, fatty acids and nucleotides can activate the multienzyme system, promote the synthesis and metabolism of nucleic acids, protein and polysaccharides, improve material transport and regulation control, and improve metabolic function.