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Aroma sorption evaluation of aseptic packaging

Aromaverlust durch Sorption in aseptischen Verpackungsmaterialien
 
: Baner, A.L.; Kalyankar, V.; Shoun, L.H.

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Journal of Food Science 56 (1991), Nr.4, S.1051-1054 : Tab.,Lit.
ISSN: 0022-1147
Englisch
Zeitschriftenaufsatz
Fraunhofer ILV ( IVV) ()
aluminium; aroma; aseptic packaging; aseptisches Verpackungsmaterial; d-Limone; Ethylacetat; Headspace; n-Hexanal; partition coefficient; polyolefin; Riechstoff; sorption; Verteilungskoeffizient

Abstract
A headspace method was developed for evaluating aroma sorption by polymeric packaging materials. Partition coefficients for ethyl acetate, n-hexanal, d-limonene and alpha-terpineol at vapor activities of 0.2 were measured between air and the materials at 25 degree C and 40 degree C. Four different flexible aseptic packaging materials with barrier layers of aluminium foil, polyvinylidene chloride (SARAN), metallized polyester (MPET) and ethylene vinyl alcohol (EVOH) were evaluated. Temperature and aroma type had significant effects on partition coefficients. No significant interaction between aromas were observed in partition coefficients. The inner polyolefin sealing layer determined the aroma sorption behavior.

: http://publica.fraunhofer.de/dokumente/PX-4619.html