what is pyrroloquinoline quinone
Pyrroloquinoline quinine, also known as PQQ, is a redox cofactor and a polyphenolic compound usually derived in food plants.It is classified as an essential micronutrient because of its usefulness to the body.yrroloquinoline quinine, also known as PQQ, is a redox cofactor and a polyphenolic compound usually derived in food plants.