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. 2018 Jul 11;14(9):2132–2141. doi: 10.1080/21645515.2018.1487499

Table 1.

Formulation compositions evaluated using freeze-thaw-stability studies. The potency values were obtained for untreated control samples, freeze-thawed samples and freeze-thawed samples incubated at 25oC for one week (freeze-thawed-stability). LOQ represent Limit of Quantification i.e. virus not detected since viral titer losses exceeded limit of quantification of the assay. Error represent SD propagated from six replicates each of samples used for calculation.

Formulation Hepes (mM) NaCl (mM) Ratio Sucrose (g/100 mL)/ PVP K-25 (g/100 mL) L- Arginine (mM) Glycine (mM) CaCl2.2H2O (mM) ZnCl2 (mM) Tween-20 (%w/v) Titer loss in freeze-thawed samples (Log10 IU/mL) Titer loss in freeze-thawed-stability samples(Log10 IU/mL)
HSRV00 10 50 1.2/4.8 100 0 2 0 0.02 0.06 ± 0.14 0.90 ± 0.13
HSRV01 25 25 3/3 50 50 1 1 0.01 0.00 ± 0.10 1.20 ± 0.31
HSRV02 10 0 1.2/4.8 10 0 0 0 0 0.07 ± 0.10 <LOQ
HSRV03 10 50 4/2 10 0 2 2 0 <LOQ <LOQ
HSRV04 50 0 4/2 100 0 2 0 0 0.00 ± 0.10 0.50 ± 0.21
HSRV05 50 50 1.2/4.8 10 100 2 0 0 0.00 ± 0.14 0.50 ± 0.09
HSRV06 10 0 1.2/4.8 100 100 2 2 0 0.12 ± 0.19 <LOQ
HSRV07 50 50 4/2 10 0 0 0 0.02 0.00 ± 0.09 <LOQ
HSRV08 50 50 1.2/4.8 100 0 0 2 0 0.15 ± 0.24 <LOD
HSRV09 50 0 1.2/4.8 10 0 2 2 0.02 0.19 ± 0.11 1.80 ± 0.28
HSRV10 10 0 4/2 10 100 2 0 0.02 0.06 ± 0.09 1.30 ± 0.30
HSRV11 50 50 4/2 100 100 2 2 0.02 0.03 ± 0.08 <LOQ
HSRV12 50 0 4/2 10 100 0 2 0 0.06 ± 0.21 <LOQ
HSRV13 10 50 4/2 100 100 0 0 0 0.05 ± 0.14 0.20 ± 0.11
HSRV14 50 0 1.2/4.8 100 100 0 0 0.02 0.09 ± 0.10 <LOQ
HSRV15 10 50 1.2/4.8 10 100 0 2 0.02 0.10 ± 0.19 0.50 ± 0.08
HSRV16 25 25 3/3 50 50 1 1 0.01 0.26 ± 0.13 <LOQ
HSRV17 10 0 4/2 100 0 0 2 0.02 0.00 ± 0.10 <LOQ
HSRV18 25 25 3/3 50 50 1 1 0.01 0.15 ± 0.17 <LOQ