Perfil de compostos voláteis em bacon defumado com madeiras de reflorestamento >i<Eucalyptus citriodora>/i< e >i<Acácia mearnsii>/i<

Abstract

Profile of volatile compounds in smoked bacon with reforestation woods Eucalyptus citriodora and Acácia mearnsii The bacon is made from pork belly (thoracic-abdominal), conveniently cured and smoked. It is known that in the composition of smoked bacon there are different volatile compounds, aromatic hydrocarbons, organic acids, aldehydes, among others, that contribute, positively or negatively, to the aroma of the product, providing a distinct flavor. The smoking process consists of exposing the food to smoke from the burning of non-resinous wood, in order to preserve and modify the initial flavor of the product. For smoking, reforestation woods, Eucalyptus citriodora and Acácia mearnsii can be used, the woods have a different chemical composition, influencing the volatile compounds produced by wood pyrolysis. The general objective of this dissertation was to identify the volatile compounds of smoked bacons with the woods of Eucalyptus citriodora and Acácia mearnsii. The profile of volatile compounds from six brands of bacon marketed in the country was analyzed and the most appropriate fiber was selected for solid phase microextraction (SPME). The profile of volatile compounds from Eucalyptus citriodora and Acácia mearnsii woods was identified using the SPME-GC/MS technique. Smoking with Eucalyptus citriodora wood showed a higher concentration of volatile compounds that contributed to the aroma of smoked (phenols) and Acácia mearnsii presented compounds that contributed to the aroma of fat (aldehydes), in bacon, ketones, alcohols, hydrocarbons were also identified. aromatics and nitrogen compounds.