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Characterization of volatile compounds, physico-chemical and sensory characteristics of smoked dry-cured ham

Marušić Radovčić, Nives, Vidaček, Sanja, Janči, Tibor, Medić, Helga
Journal of food science and technology 2016 v.53 no.11 pp. 4093-4105
acids, aldehydes, alkanes, aromatic hydrocarbons, ash content, correlation, cured meats, esters, gas chromatography-mass spectrometry, hardness, headspace analysis, ketones, lipid content, lipolysis, marbling, odor compounds, odors, phenols, physicochemical properties, principal component analysis, proteolysis, sodium chloride, solid phase microextraction, taste, terpenoids, water content
Volatile compounds from smoked dry-cured ham were isolated by using headspace-solid phase microextraction and gas chromatography–mass spectrometry (GC–MS). Samples of biceps femoris were also evaluated for sensory physical and chemical characteristics. Eighty seven volatile aroma compounds of smoked dry-cured ham were identified. Chemical groups identified were aldehydes (35.6%), phenols (34.3%), alcohols (13.8%), terpenes (6.4%), aromatic hydrocarbons (2.6%), alkanes (2.2%), ketones (2.2%), esters (1.7%) and acids (0.7%). Except volatile compounds derived from lipolysis and proteolysis the second most abundant constituents were phenols that originate from smoking phase of the production process. The most abundant phenols were: 4-methylphenol, 3-methylphenol, 2-metoxy-4-methylphenol, 2-methylphenol, 2,6-dimethoxyphenol and 4-ethyl-2 methoxyphenol. Principal components analysis showed that NaCl and ash content positively correlated with the salty taste while fat content was correlated to marbling. Water content and aw value were negatively correlated with hardness of dry-cured ham while phenols were positively corelated with smoky aroma. Due to the different volatile composition and pronounced smoky aroma, smoked dry-cured ham can be distinguished from other types of dry-cured hams.