Abstract
Ginkgo biloba (Ginkgoaceae), originating from China, now distributes all over the world. Wide application of Ginkgo
biloba extracts is determined by the main active substances, flavonoids and terpenoids, which indicates its extracts
suitable to be used as an effective corrosion inhibitor. The extracts of Ginkgo biloba leave have been investigated
on the corrosion inhibition of Q235A steel with weight loss and potentiodynamic polarisation techniques. The
inhibition efficiency of the extracts varies with extract concentration. The extracts inhibit corrosion mainly by
adsorption mechanism. Potentiodynamic polarisation studies show that extracts are mixed type inhibitors. The
antibacterial activity of the extracts against oil field microorganism (SRB, IB and TGB) was also investigated.
Keywords: Ginkgo biloba, Extract, Inhibition efficiency, Oil field microorganism
Abstract
Ginkgo biloba (Ginkgoaceae), originating from China, now distributes all over the world. Wide application of Ginkgo
biloba extracts is determined by the main active substances, flavonoids and terpenoids, which indicates its extracts
suitable to be used as an effective corrosion inhibitor. The extracts of Ginkgo biloba leave have been investigated
on the corrosion inhibition of Q235A steel with weight loss and potentiodynamic polarisation techniques. The
inhibition efficiency of the extracts varies with extract concentration. The extracts inhibit corrosion mainly by
adsorption mechanism. Potentiodynamic polarisation studies show that extracts are mixed type inhibitors. The
antibacterial activity of the extracts against oil field microorganism (SRB, IB and TGB) was also investigated.
Keywords: Ginkgo biloba, Extract, Inhibition efficiency, Oil field microorganism
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