f o o d p a c k a g i n g a n d s h e l f l i f e 1 ( 2 0 1 4 ) 1 9 – 2 4
a r t i c l e i n f o
Article history:
Received 31 May 2013
Received in revised form
2 October 2013
Accepted 2 October 2013
Available online 13 November 2013
Keywords:
Bread quality
Film thickness
Packaging
Overpackaging
Texture profile analysis
a b s t r a c t
The research focuses on the evaluation of the effects of films with different thickness on the
quality of industrial durum wheat bread. A comparative shelf life test was performed taking
into consideration textural parameters, instrumental crumb colour parameters, crumb
moisture and alkaline water retention capacity, considered as indirect indicators of bread
staling. Sliced, durum wheat bread was packed into a system made of a thermoformed
bottom, with thickness ranging from 225 to 275 mm, and a lid (121–125 mm), with comparable
barrier properties. Results demonstrated that it is possible to reduce packaging by about 20%
without affecting shelf life standards. The packaging systems showed comparable barrier
performances, maintaining the modified atmosphere during 103 days. Texture profile
analysis gave comparable results for packages at reduced thickness compared with conventional
ones. Also, colour, alkaline water retention capacity and crumb moisture correlated
well with bread ageing and did not significantly vary among packaging types.
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E-mail address: g.muratore@unict.it (G. Muratore).
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