Table 1.

Long term stability data according to ICH Q5C guidelines for biotechnological products. Content values are expressed as mean ± SD.

	Property	0 months	3 months	6 months	12 months
1.	Particle Size	297.3 nm	296.5 nm	296.1 nm	293.6 nm
2.	Quillaja Saponin content	103.49 ± 0.26 μg	97.22 ± 0.52 μg	101.53 ± 0.87 μg	95.45 ± 0.25 μg
3.	LPS content	57.03 ± 1.52 μg	58.67 ± 1.14 μg	52.87 ± 2.05 μg	56.33 ± 4.06 μg