Table 4.

Influence of the formulation of the filmogenic solutions on the consistency (K) and flow behavior index (n) measured at 25°C, and the retention rate of the resulting dried films made of SPI, WG, and carvacrol.

Film formulation	Viscosity		Retention rate of aroma compound
	K (Pa.s)	N	(%)
WGa	0.03 ± 0.07	0.97	–
WG + 15% carvacrol	6.99 ± 0.11	0.43	76.4 ± 3.2
WG + 30% carvacrol	12.6 ± 0.32	0.41	85.5 ± 17
SPIb	0.43 ± 0.001	0.80	–
SPI + 15% carvacrol	0.36 ± 0.016	0.84	73.5 ± 75
SPI + 30% carvacrol	0.43 ± 0.03	0.81	95.3 ± 5.2
SPI + 15% eugenol	0.36 ± 0.08	0.83	ND
SPI + 30% eugenol	0.41 ± 0.02	0.82	75.0 ± 2.5

^aWG solution contained 20% (w/w db), 10% (w/w) glycerol, and 15 or 30% (w/w) carvacrol, as related to dry matter.

^bSPI solution contained 10% (w/w db), 20% (w/w) glycerol, and 15 or 30% (w/w) caracrol or eugenol as related to dry matter. ND, not determined.