Chemical migration from food packing is influenced by several factors such as nature of chemicals, complexity of food, temperature, packing material used and properties of the migrating substances. Chemical compounds that are incorporated within polymeric packaging materials may interact with food components during processing or storage and migrate into the food by jeopardizing the food safety. This migration is higher if food remains in contact with packing material for extended time. Polyvinyl chloride (PVC) film such as di-(2-ethylhexyl) adipate (DEHA) and acetyl tributyl citrate (ATBC) are still widely used as a food packing material due to its flexibility, transparency and low water permeability. The present study covers the main migration phenomena of both plasticizers (di-(2-ethylhexyl) adipate (DEHA) and acetyl tributyl citrate (ATBC)) from PVC-film into isooctane food stimulant using a direct gas chromatographic method. An exposure period of 48 h at 30°C and 4°C was used. The obtained results showed DEHA levels ranging of 7.2 mg/dm 2 while, no ATBC migration from PVC-film was observed. Results are discussed in relation to EU legislation proposed upper limit for DEHA specific migration (18 mg/L or 3 mg/dm 2 ) and overall migration limit (OM) of 10 mg/dm 2 .Keywords: migration / plasticizer / PVC films / di-(2-ethylhexyl) adipate (DEHA) / acetyl tributyl citrate (ATBC) / food stimulant Schlüsselwörter: Weichmacherwanderung / PVC-Folien / Di-(2-ethylhexyl) Adipate (DEHA) / Acetyl Tributyl Zitrate (ATBC) / Genussmittel
Balkan countries are home to outstanding natural bioresources such as large number of herbs, plants and forestry species. They are also, among the most important export regions for medicinal and aromatic plants in Europe. Balkan has various flora with different tree species as well. Pinus halepensis, also known as the Aleppo pine, is native to the Mediterranean region. However, its range extends to Balkan countries as well, such as Albania, Greece, Croatia and Montenegro. It is one of the many trees that are well known for their medicinal properties, as well as for their economical significance. In this work essential oils/extracts of Pinus halepensis needles were acquired by hydro-distillation (Clevenger type) and Soxhlet extraction. The pine oils and crude extracts were analysed by FTIR spectroscopy and UV-Vis spectrophotometry aiming the identification of the main chemical constituents of the oil extracts of Albanian pine needles. FTIR analyses indicated presence of caryophyllene and pinene as the main chemical constituents in the essential oil and extract of pine needles.
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