Effect of the Addition of Essential Oils and Functional Extracts of Clove on Physicochemical Properties of Chitosan-Based Films

Table 1

Maximum chitosan film’s punction and extensibility force with essential oils and functional extract (added esters E₆, E₇) of clove.

Short of film	Extensibility^1 (N)	Punction^2 (N)
Chitosan films	23.63 ± 0.43^a	3.14 ± 0.03^a
Chitosan + essential oil	24.38 ± 3.38^a	5.87 ± 0.31^b
Chitosan + functional extract (E6)	34.71 ± 1.58^b	7.18 ± 0.16^c
Chitosan + functional extract (E7)	44.05 ± 3.70^c	9.34 ± 0.55^d

Note. ¹An average of 5 measurements in every film, ²an average of 15 measurements in every film. Tukey testing: the averages with the same letter do not significantly differ and the averages with different letter show significant differences ( < 0.05). Fatty acids ethyl esters used in this study were ethyl caproate (E₆) and ethyl heptanoate (E₇).