Table 3.

Controlled release of citronellal, citronellol, and geraniol from air freshener gel formulations.

Formula	Citronellal		Citronellol		Geraniol
	R-square	Shelf life (day)	R-square	Shelf life (day)	R-square	Shelf life (day)
I	0.8824	1.36	0.9323	12.77	0.9699	16.82
II	0.9993	15.06	0.4808	-a	0.4808	-a
III	0.9891	22.40	0.9695	1.62	0.3952	-a
IV	0.7500	-a	0.4696	-a	0.5057	-a
V	0.3952	-a	0.9845	1.12	0.4606	-a
VI	0.3952	-a	0.9308	4.04	0.8834	11.33

^aNot determined.