Fig. 5. AFM images of SSP chains from honeydew a. (a) before treatment; (b) its corresponding 3-dimensional image; (c) control group at day 1; (d) 2% chitosan group at day 1; (e)
1% CaCl2 group at day 1; (f) combined treatment group at day 1; (g) control group at day 7; (h) 2% chitosan group at day 7; (i) 1% CaCl2 group at day 7; (j) combined treatment group
at day 7; (k) control group at day 13; (l) 2% chitosan group at day 13; (m) 1% CaCl2 group at day 13; (n) combined treatment group at day 13. a Note: lc: long chain; sc: short chain; ls:
linear single fraction; br: branching structure; mb: multiple branched chain; cp: cleavage point; ag: aggregates.