Naslov
Plant extracts as a natural corrosion inhibitors of metals and its alloys used in food preserving industry

Autori
Ninčević Grassino, Antonela

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Science within Food: Up-to-date Advances on Research and Educational Ideas

Urednik/ci
Méndez-Vilas, A.

Izdavač
Formatex Research Center

Grad
Badajoz

Godina
2017

Raspon stranica
185-193

ISBN
978-84-947512-1-9

Ključne riječi
Corrosion ; Natural inhibitors ; Plant extracts ; Chromatographic, Spectroscopic and Electrochemical Techniques ; Surface Analyses
(corrosion ; natural inhibitors ; plant extracts ; chromatographic, spectroscopic and electrochemical techniques ; surface analyses)

Sažetak
The protection of metals and its alloys against corrosion has attracted great attention, due to their various industrial application and economic importance. Pure metals and its alloys react chemically or electrochemically with corrosive medium to form stabile corrosion compounds in which the loss of metals occurs and consequently metal surface becomes corroded. In order to prevent corrosion damage and eventual failure of components and systems both in processing and manufacturing industries, the use of corrosion inhibitors is very popular. Corrosion inhibitors are synthetic or natural substances when added in small concentrations to corrosive media inhibited the corrosion reaction and reduced corrosive attack on metals. Although, many synthetic compounds showed good anticorrosive properties, most of them are toxic for human and environmental. Due to the fact that increasing the awareness of health and ecological risks, new eco-friendly and harmless natural anticorrosive substances have drawn great attention. The various plants, such as aromatic herbs and spices have been used not only by human beings, e.g. food-stuffs, flavour, fragrance and medicine, but also as a rich source of anticorrosive inhibitors. Plants inhibition performance and efficiency are related to their chemical composition, which take the form of alkaloids, carbohydrates, polyphenols, proteins and tannins. These compounds usually have functional groups with oxygen, nitrogen and sulphur atoms, which can be easy adsorbed on metal surface due to range of functional group properties. Therefore, this work reports application of plant extracts as anticorrosive agents for metals and its alloys used in food preserving industry. Furthermore, the methods used for extraction and characterization of plant materials, as well as methods for calculation of corrosion inhibition efficiency are described, too. In conclusion, the propose work points out that plants extract can be considered as a promising industrial resource for protection of metals and its alloys due to theirs environmental acceptability, ready availability and high inhibition efficiency properties.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Prehrambena tehnologija

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