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. 2019 Apr 19;9:55. doi: 10.1186/s13568-019-0776-7

Fig. 7.

Fig. 7

Signal to noise ratio of Alkaline phosphatase over-expressed by E. coli BL21 after 4 h of enrichment in TSB (a), coconut water (b), and apple juice (c) after infection with phage T7-ALP for 30 min. Asterisk indicates significant difference (P < 0.05) from negative control. Error bars indicate ± standard deviation of means