Proliferation of Bifidobacterium L80 under different proportions of milk protein hydrolysate

Table 1 Change of optical density (OD) value in the control and mixtures of infant formula containing different proportion of macromolecules and small molecule peptides in MPH

Macromolecules/small molecule peptides	0 h	4 h	8 h	12 h	16 h	20 h	24 h
Blank	0.071 ± 0.019^Aa	0.128 ± 0.070^Ba	0.344 ± 0.080^Ca	0.619 ± 0.086^Da	0.687 ± 0.073^Ea	0.696 ± 0.079^Ea	0.700 ± 0.038^Ea
5:5	0.073 ± 0.018^Aa	0.128 ± 0.069^Ba	0.349 ± 0.075^Cb	0.748 ± 0.084^Db	0.881 ± 0.121^Eb	0.894 ± 0.745^Ea	0.890 ± 0.062^Eb
4:6	0.071 ± 0.010^Aa	0.128 ± 0.047^Ba	0.348 ± 0.047^Cb	0.791 ± 0.062^Dc	0.919 ± 0.067^Eb	0.922 ± 0.841^Eb	0.922 ± 0.130^Eb
3:7	0.079 ± 0.013^Aa	0.131 ± 0.074^Ba	0.349 ± 0.082^Cb	0.858 ± 0.084^Dd	0.955 ± 0.105^Eb	0.959 ± 0.110^Eb	0.960 ± 0.129^Ebc
2:8	0.071 ± 0.015^Aa	0.133 ± 0.047^Ba	0.343 ± 0.028^Ca	0.873 ± 0.106^Dd	0.990 ± 0.068^Ec	0.979 ± 0.103^Ec	0.999 ± 0.097^Ec
1:9	0.070 ± 0.020^Aa	0.145 ± 0.036^Bb	0.356 ± 0.097^Cc	0.951 ± 0.103^De	1.073 ± 0.096^Ee	1.073 ± 0.123^Ed	1.079 ± 0.080^Ed
Control	0.071 ± 0.010^Aa	0.232 ± 0.083^Ba	0.352 ± 0.027^Cb	0.902 ± 0.133^Dd	0.917 ± 0.100^Eb	0.922 ± 0.099^Eab	0.921 ± 0.037^Eb

^A^~^E indicates a significant difference between OD value at different culture times (P < 0.05)
^a^~b indicates a significant difference between OD value at different proportion of macromolecules and small molecule peptides in MPH (P < 0.05)

ISSN: 1475-2859