2.3Weight Loss of Cake
Orange flavored butter cake tended to lose
the weight during storage. Cake unwrapped from
chitosan film incorporating 1.4% of orange essential
oil had the least weight loss. This is mainly due to
.
the hydrophobicity of orange essential oil present in
the film composition lower WVTR value of the film.
The film incorporating orange essential oil, which is
more hydrophobic than pure chitosan film showed
the significant difference in water barrier protection
against weight loss (Figure 3).