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JKP2 stability after 1 and 2 h of heat treatment (A), long-term storage stability at various temperatures at different time intervals, and (B), the effect of various pH treatments on JKP2 stability (C). The mean titer after three independent experiments is shown as a bar graph. Error bars indicate SEM. Bar with * indicate significant reduction in titer relative to zero-time point (p value <0.05).
