Table 1 Recovery studies of spiked E. coli O157:H7 in fresh milk samplesa.

From: Exploiting pH-Regulated Dimer-Tetramer Transformation of Concanavalin A to Develop Colorimetric Biosensing of Bacteria

added E. coli concentration (CFU/mL)

A 635/A 525

found (CFU/mL)

recovery (%)

RSDb (%)

1.0 × 103

0.850 ± 0.012

0.99 × 103

99

1.4

1.0 × 104

0.973 ± 0.008

1.16 × 104

116

0.8

1.0 × 105

1.076 ± 0.012

0.94 × 105

94

1.1

  1. aAverage of three parallel tests. bRSD represents relative standard deviation for absorption ratio.
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