Fig. 1
From: Stability of enveloped and nonenveloped viruses in hydrolyzed gelatin liquid formulation
A Stability over 3 weeks of storage of BHV-1 in the hydrolyzed gelatin liquid formulation at 4 °C and 25 °C. LRV: Log reduction value, **P value < 0.01 (Welch’s t test), ns: non statistically significant. B Stability of BHV in the hydrolyzed gelatin liquid formulation with varying concentrations in 3- and 8-week storage at 4 °C. LRV: Log reduction value. C Stability of BHV in hydrolyzed gelatin liquid formulation with varying concentrations in 3- and 8-week storage at 25 °C. LRV: Log reduction value. D Isoelectric points of varying acid-treated and alkaline-treated hydrolyzed gelatin used for virus stability formulations. Zeta potential and pH of each molecular weight samples were showed in the figure. E Stability of BHV in acid-treated and alkaline-treated hydrolyzed gelatin after 3 weeks of storage at 25 °C. The numbers indicate the molecular weight of samples, and A and B, acid-treated and alkaline-treated hydrolyzed gelatin respectively. LRV: Log reduction value. F Effect of three freeze–thaw cycles on BHV stability in hydrolyzed gelatin. LRV: Log reduction value, *P value < 0.05 (Welch’s t test), HG: Hydrolyzed gelatin