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Processing and Bioavailability (WG2) page 18
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4 Packaging O Supply with oxygen barrier material
Survey of references:
A thesis by Zanotti showed that in the case of a tomato puree, the best packaging material
would seem to be unlacquered tinplate; in any case, the tests carried out reveal the practical
suitability of all the packaging materials utilised (glass, lacquered tinplate, polypropylene
with Al foil), and the high chemical inertia of lycopene in this type of product, substantially
devoid of lipidic components, allowing for good maintenance in time also under improper
storage conditions.
Comments and topics
Also on account of the substantial chemical inertia of lycopene in an aqueous matrix,
oxidation (easier with the use of packaging materials which are partially permeable to
oxygen) is rather slow, and of scant significance in quantitative terms. The reductions in
colour are more evident. It would be interesting to observe what happens in the presence of
oils or fats, which solubilise lycopene and make it more reactive and thus more susceptible to
attack
Is this step an RCPL ?
Q1 Q2 Q3 Q4 Result
Yes Yes Yes