Color Characteristics and Content of Polycyclic Aromatic Hydrocarbons of Traditional Dry Fermented Sausages Throughout Processing in Controlled Conditions

Author(s):  
Snežana Škaljac ◽  
Marija Jokanović ◽  
Vladimir Tomović ◽  
Branislav Šojić ◽  
Predrag Ikonić ◽  
...  
2014 ◽  
Vol 33 (2) ◽  
pp. 227 ◽  
Author(s):  
Biljana Škrbić ◽  
Nataša Đurišić-Mladenović ◽  
Nada Mačvanin ◽  
Ana Tjapkin ◽  
Snežana Škaljac

The occurrence of polycyclic aromatic hydrocarbons (PAHs) in smoked dry fermented sausage with protected designation of origin <em>Petrovská klobása</em> from Serbia was determined by analysing PAHs from the US EPA and the EU priority lists. The peeled natural cased sausages smoked in industrial and traditional smokehouses were studied in order to assess the influence of smoking conditions on the PAH contents. The highest total concentration of EPA PAHs was found in the samples smoked in traditional smokehouse, being almost 15 times higher than the total EPA PAHs content in sausages smoked in industrial smokehouse; the content of EU PAHs in both types of the smoked products were similar, being close to 1.5 µg/kg. The most abundant compound was phenanthrene with the average content of about 31 µg/kg in traditionally smoked samples and about 3 µg/kg in industrially smoked samples. The concentrations of benzo[a]pyrene as well as the total concentrations of benzo[a]pyrene, benzo[a]anthracene, benzo[b]fluranthene and chrysene (consisting the so-called “PAH4” group) were rather low in both types of smoked sausages, being well below the corresponding maximum allowed levels set by the latest European Regulation 835/2011, not representing any risk to consumers’ health when PAHs presence is concerned.


2019 ◽  
Vol 64 (1) ◽  
pp. 55-67
Author(s):  
Vlad Pӑnescu ◽  
◽  
Mihaela Cӑtӑlina Herghelegiu ◽  
Sorin Pop ◽  
Mircea Anton ◽  
...  

2019 ◽  
Author(s):  
Yachu Du ◽  
Kyle Plunkett

We show that polycyclic aromatic hydrocarbon (PAH) chromophores that are linked between two five-membered rings can access planarized structures with reduced optical gaps and redox potentials. Two aceanthrylene chromophores were connected into dimer model systems with the chromophores either projected outward (2,2’-biaceanthrylene) or inward (1,1’-biaceanthrylene) and the optical and electronic properties were compared. Only the planar 2,2’-biaceanthrylene system showed significant reductions of the optical gaps (1 eV) and redox potentials in relation to the aceanthrylene monomer.<br>


2019 ◽  
Author(s):  
Yachu Du ◽  
Kyle Plunkett

We show that polycyclic aromatic hydrocarbon (PAH) chromophores that are linked between two five-membered rings can access planarized structures with reduced optical gaps and redox potentials. Two aceanthrylene chromophores were connected into dimer model systems with the chromophores either projected outward (2,2’-biaceanthrylene) or inward (1,1’-biaceanthrylene) and the optical and electronic properties were compared. Only the planar 2,2’-biaceanthrylene system showed significant reductions of the optical gaps (1 eV) and redox potentials in relation to the aceanthrylene monomer.<br>


Author(s):  
M. Assad ◽  
V. V. Grushevski ◽  
O. G. Penyazkov ◽  
I. N. Tarasenko

The concentration of 16 polycyclic aromatic hydrocarbons (PAHs) in the gasoline combustion products emitted into the atmosphere by internal combustion engines (ICE) has been measured using the gas chromatography method. The concentrations of PAHs in the exhaust gases sampled behind a catalytic converter has been determined when the ICE operates in five modes: idle mode, high speed mode, load mode, ICE cold start mode (engine warm-up) and transient mode. Using 92 RON, 95 RON and 98 RON gasoline the effect of the octane number of gasoline on the PAHs content in the exhaust gases has been revealed. The concentration of the most carcinogenic component (benzo(α)pyrene) in the exhaust gases behind a catalytic converter significantly exceeds a reference value of benzo(α)pyrene in the atmospheric air established by the WHO and the EU for ICE in the load mode.


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