Results and discussion
Ginger essential oil, containing zingiberene (39.12%), geranial
(13.44%), camphene (11.15%), β-ses-quiphellandrene (10.64%)
and neral (6.61%), was obtained from the Zingiber officinale
Roscoe species.
The decrease in pH values detected in K samples during
storage was higher than that in WPIG and WPI samples
(Table 1). Fat levels in Kashar cheese fortified with essential
oil increased during storage (Table 1); the relationship between
the two parameters was found to be significant (p < 0.05).
Additionally, coating the cheese samples with WPIG-based
coating had a significant effect on the fat levels of the samples
(p < 0.05). The higher fat values in samples coated with WPIGbased
coating compared with the K sample are associated with
the former’s higher dissolution of the essential oil in the lipid
fraction of the cheese, which can be attributed to the WPIGbased
coating’s hydrophobic properties (Holley & Patel, 2005)
and it being a good barrier against fat (Koyuncu & Savran,
2002). Weight losses in coated Kashar cheese samples were
lower than those in K samples (Figure 1). As seen in
Figure 1, the inner and outer hardness values during the storage
of the samples coated with WPIG were lower than the uncoated
K samples. The differences observed between coated and