The transmission of UV and visible

The transmission of UV and visible light at selected wavelengths
in the range of 200e800 nm by PLA films incorporated with and
without Proallium® is presented in Table 1. Proallium® was able to
impede light transmission through the film, as demonstrated by the
increase in the transparency values (p < 0.05) with the increasing
concentration of the active agent up to 5%, although a decrease was
observed at 6.5% of Proallium®. Transparent films are typically
desirable with higher applicability and acceptability in food packaging
systems (Ahmad, Benjakul, Prodpran, & Agustini, 2012;
Ojagh, Rezaei, Razavi, & Hosseini, 2010; Pillin, Montrelay, &
Grohens, 2006). Despite our results showing significant decreases
in the transparency of the film containing Proallium®, no visual
differences with the control film were discernible. Consequently, no
effect on their acceptability for the consumer is expected.