PQQ may refer to: *

Pyrroloquinoline quinone Pyrroloquinoline quinone (PQQ), also called methoxatin'','' is a redox cofactor and antioxidant. Quinoprotein glucose dehydrogenase is used as a glucose sensor in bacteria. PQQ stimulates growth in bacteria. History It was discovered by J. G. ...

, enzyme cofactor *

Port Macquarie Airport Port Macquarie Airport is an airport in Port Macquarie, New South Wales, Port Macquarie, New South Wales, Australia. The airport is westAeronautical Chart of the city centre and is owned and managed by the Port Macquarie-Hastings Council on b ...

, IATA Airport Code * Pre-qualification questionnaire, which precedes an

invitation to tender An invitation to tender (ITT, also known as a call for bids or a request for tenders) is a formal, structured procedure for generating competing offers from different potential suppliers or contractors looking to obtain an award of business activ ...

See also