Table 1.

LAL test in Cg solutions

Samples	Presence of endotoxin	Sensitivity	Gelation occurs	Endotoxin units (EU/ml)
Culture Medium	–	< 0,015	–	~  1000
PBS solution	–	< 0,015	–	~  1000
LPS 0,01 ng/ml	+	>  0,015	+	~  6000
LPS 0,1 ng/ml	+	>  0,015	+	~  12,000
LPS 1 ng/ml	+	>  0,015	+	~  12,000
LPS 10 ng/ml	+	>  0,015	+	~  24,000
LPS 100 ng/ml	+	>  0,015	+	~  24,000
LPS 1000 ng/ml	+	>  0,015	+	~  24,000
Cg 30 μg/ml	–	< 0,015	–	~  1000
Cg 100 μg/ml	–	<  0,015	–	~  1000
Cg 300 μg/ml	–	<  0,015	–	~  1000

(+) Positive or (−) Negative detection for endotoxin presence

Cg Carrageenan, LPS Lipopolysaccharide, EU/ml corresponding endotoxin concentration