Table 5. Standardized effects (evaluated as the ratio of the mathematical coefficient of each factor and its standard error).

	Time (day)
	1	2	3
B. infantis DSM20088
Intercept	1.115	1.119	1.355
pH	−2.229	−2.219	−2.730
Agitation	nsa	ns	ns
Presence of surfactants	−2.229	−2.219	−2.730
Cellular growth phase	ns	ns	ns
Temperature	2.229	2.219	2.730
MSb	0.089	0.096	0.011
R2adjc	0.970	0.968	0.998
L. reuteri DSM20016
Intercept	1.139	1.312	1.380
pH	−2.289	−2.638	−2.788
Agitation	ns	ns	ns
Presence of surfactants	−2.289	−2.638	−2.788
Cellular growth phase	ns	ns	ns
Temperature	2.289	2.638	2.788
MS	0.011	0.023	0.004
R2adj	0.995	0.990	0.997

Notes:

Standardized effects (evaluated as the ratio of the mathematical coefficient of each factor and its standard error) of pH, temperature, cellular growth phase, agitation and presence of surfactants on biofilm formation by the selected probiotics (B. infantis DSM20088 and L. reuteri DSM20016).

^aNot significant;

^bMean square residual;

^cR² adjusted regression coefficient.