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. 2017 Dec 12;7:17436. doi: 10.1038/s41598-017-17734-y

Figure 2.

Figure 2

Ratio of swollen weight to initial weight depending on pH-value of unirradiated 10 wt% gelatin (a and b) and samples irradiated with 40 kGy (c and d). Two gelatin types, type A (a and c) and type B (b and d) were investigated. Swollen weights were determined after 24 h. The dashed lines indicate the range of the IEP. The pH-value was reached by using H2SO4 (green), deionized water (grey) and NaOH (red).