Table 1.

Molecular size distributions with HPLC of collagen peptide.

Number	Retention time (min)	Molecular weight (Da)	Peak area  percentage (%)	Number	Retention time (min)	Molecular weight (Da)	Peak area   percentage (%)
1	12.37	367553	35.38	1′	12.31	377016	0.59
2	17.80	36829	29.13	2′	15.29	106669	1.09
3	19.07	21504	5.26	3′	23.05	3982	98.32
4	19.58	17325	24.99
5	24.80	1897	4.38
6	28.62	376	0.86