Organic Compounds Formed in Thermally Treated High Proteinaceous Food, Part Ii: Azaarenes

نویسندگان

  • B. Janoszka
  • U. Błaszczyk
  • D. Bodzek
چکیده

An analytical scheme developed for determination of PAH and aminoazaarenes has been applied to the analysis of aza-PAH formed in thermally treated high-protein food. The clean-up procedure, which was based on tandem solid-phase extraction (SPE) on columns filled with Extrelut diatomaceous earth and with cation exchanger (propylsulphonic acid, PRS), enabled selective isolation of carcinogenic azaarenes (benzoacridines and dibenzoacridines) from meat samples. Nine meat dishes (beef, pork, and poultry) grilled or prepared according to recipes used in the Upper Silesia region (roasted, fried) were investigated. Identification and quantitative analysis of four individual compounds – benzo(a)acridine, benzo(c)acridine, dibenzo(a,c)acridine and dibenzo(a,h)acridine – were achieved by HPLC and GC–MS. The total azaarene content of the meat ranged from 0.79 to 3.30 ng g and the value calculated for daily human exposure to these azaarenes did not exceed 0.35 μg day person.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Organic Compounds Formed in Thermally Treated High Proteinaceous Food, Part I: Polycyclic Aromatic Hydrocarbons

This work concerns the use of analytical procedures to determine polycyclic aromatic hydrocarbons (PAH) in heat-treated meat dishes prepared under household cooking conditions. These compounds have not yet been analysed in food in Poland. Application of tandem solid-phase extraction (SPE) with columns filled with Extrelut diatomaceous earth and C18 phase, and column chromatography on silica gel...

متن کامل

Assessment of azaarenes and azaarones (oxidized azaarene derivatives) in the Dutch coastal zone of the North Sea.

Azaarones (oxidized derivatives of azaarenes) is a group of newly emerging chemical compounds. Little is known about their occurrence in the aquatic environment. Azaarenes are polycyclic aromatic heterocyclic compounds containing one nitrogen atom in one of the aromatic rings. The (photo) oxidized metabolites of the azaarenes are often more toxic than the parent compound. For the first time the...

متن کامل

Determination of Heterocyclic Aromatic Amines in Heated Meat Samples Using an Efficient Microwave Assisted Extraction and Microextraction Method Followed by HPLC

Background and Objectives: Heterocyclic aromatic amines (HAAs) are carcinogenic and mutagenic substances, which are formed during the heating process of proteinaceous foods such as meat and meat products. The extraction of these compounds from the complex matrix of meat products was carried out by microwave assisted pre-extraction and a precise, rapid and high sensitive microextraction method. ...

متن کامل

Enantioselective copper-catalyzed reductive coupling of alkenylazaarenes with ketones.

Catalytic enantioselective methods for the preparation of chiral azaarene-containing compounds are of high value. By combining the utility of copper hydride catalysis with the ability of C═N-containing azaarenes to activate adjacent alkenes toward nucleophilic additions, the enantioselective reductive coupling of alkenylazaarenes with ketones has been developed. The process is tolerant of a wid...

متن کامل

Cytochrome P450 induction by nitrated polycyclic aromatic hydrocarbons, azaarenes, and binary mixtures in fish hepatoma cell line PLHC-1.

Nitrated polycyclic aromatic hydrocarbons (NPAHs) and N-heterocyclic aromatic hydrocarbons (azaarenes) are as ubiquitous in the environment as their parent PAH compounds, although occurring at lower concentrations. The toxicological importance of NPAHs and azaarenes is based on their mutagenic and carcinogenic potential. Azaarenes possess a higher solubility and mobility in the environment than...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004