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. 2020 Jul 3;8:734. doi: 10.3389/fbioe.2020.00734

TABLE 3.

Characterization of fish waste generated peptones.

Peptones Total carbon (mg g–1) Total organic carbon (mg g–1) Total nitrogen (mg g–1) Ash (%) C/N Reference
Fish head 405.1 ± 3.2 73.4 ± 0.3 98.1 ± 0.7 5.8 4.12
Fish liver 399.9 ± 2.3 66.2 ± 0.4 128.9 ± 0.8 6.3 ± 0.1 3.1
Tryptone N/A N/A 133 6.6 3.4 Aspmo et al., 2005
Soytone N/A N/A 94 12.0 4.4 Aspmo et al., 2005
Yeast extract N/A N/A 114 13.1 3.9 Aspmo et al., 2005

*N/A, not available.