Table 3.

Average 3-HPA and glycerol content in the supernatant (in % of the initial value) after freeze-thaw cycles performed weekly for 28 days in 15 and 50 ml vials.

Day	3-HPA (g/L)		Glycerol (g/L)
	15 ml (%)	50 ml (%)	15 ml (%)	50 ml (%)
0	100	100	100	100
7	97	89	102	93
14	95	86	101	93
21	94	85	101	93
28	93	85	102	94