Mapeamento tecnológico relacionado ao uso biotecnológico do extrato de punica granatum L. como inibidor de corrosão

Abstract

The purpose of this work was to carry out the technological monitoring of Punica granatum L. extract as a natural (green or sustainable) corrosion inhibitor. To this end, a survey of patent documents was carried out at the National Institute of Industrial Property (INPI), through the Buscaweb database and at the European Patent Office (EPO), through the Espacenet database and scientific documents in the following databases: Google Scholar, SciELO and Web of Science, in order to verify the existence of research focused on the use of Punica granatum L. as a corrosion inhibitor for steels, in the period between 2020 and 2021. To carry out the research, patent documents and articles, descriptors related to the theme were used, such as: Punica, granatum, Extract, Corrosão, among others. From this approach, scientific documents dated from 1972 were obtained. In the evaluation of patent documents, 3 different search strategies were used. This approach allowed the finding of patent documents in the two searched databases. Such patents focused on the use of pomegranate extracts in technologies related to the pharmaceutical and cosmetics industry. In this way, new searches were carried out using new strategies and descriptors that were combined with the help of the “and” operator, carried out in the following periods: June 2020, September 2021 and May 2022. The results showed the existence of patent documents related to the green corrosion inhibition process in the two databases analyzed, with China holding the highest number of patents deposited, followed by Brazil, the United States and New Zealand. However, no patent document was detected regarding the use of pomegranate extract as a sustainable corrosion inhibitor.