“…On the other hand, the fractions of resins (i.e., pyridines, quinolines, carbazoles, sulfoxides, and amides) and asphaltenes (i.e., phenols, fatty acids, ketones, esters, and porphyrins) do not have a definite structure like saturates and aromatics but a very complex constitution with the addition of heteroatoms like N, S, and O (Mullins 2008). Due to the extensive worldwide use of petroleum products, contamination with HCs is not uncommon either during the exploration, as a consequence of the generation of refinery waste by-products, or as a result of accidental spills throughout transportation and storage processes (Krahforst and Healey 2017). Indeed, petroleum-HC contamination is of great concern as it poses severe toxic effects for the whole ecosystem affecting both environmental compartments (e.g., soil, air, water bodies) and human health (Ahmed and Fakhruddin 2018;Tormoehlen et al 2014).…”