Effects of Nanomaterial Reinforced Fibrous Casing of Sugarcane Bagasse on the Adsorption of Polycyclic Aromatic Hydrocarbons in Smoked Sausages

Abstract

Novel nanocomposites reinforced fibrous casing of sugarcane bagasse containing with nanocarbon and nanoclay (0.5 and 1% wt) were developed to evaluate the adsorption effects of 4 carcinogenic polyaromatic hydrocarbons [benzo­[a]­anthracene, chrysene, benzo­[b]­fluoranthene, and benzo­[a]­pyrene­(PAH 4)] during the smoking process of dried sausage. The mechanical, water vapor permeability (WVP), migration, film opacity, thermal properties, morphology, and the adsorption efficiency of produced films were assessed. It was observed that additions of nanocarbon and nanoclay to the film formulation led to significant improvement in tensile strength, elongation at break, maximum load stress, and elastic modulus values compared to control film. WVP in the nanocomposite was reduced by 40% along with the addition of nanoparticles. Film opacity, melting temperature, crystallization temperature, crystallinity degree, and glass transition temperature were remarkably increased. The migration levels of neat nanomaterials in ethanol and isooctane ranged from 45 to 107 mg kg–1. These improvements were more highlighted when nanoclay nanoparticles (1% wt) were used compared to nanocarbon. The nanoclay nanocomposite indicated uniform and well-distributed nanoparticles. Based on the GC–MS analysis, reinforced sugarcane bagasse fibrous casing with nanoclay particles efficiently adsorbed the PAH 4 compared to control and nanocarbon reinforced nanocomposite film.