Open Access

Table 1.

Chemical composition of animal raw materials

Name of raw materials Moisture Fats Proteins Ash Water soluble substances
Total Complete Collagen groups
Pork raw
Pork skin (saline) 62.0± 0.4 10.1± 0.5 27.8± 0.8 1.9± 0.6 25.9±0.6 0.60± 0.03 1.20± 0.07
Skin (inter‐nipple part) 42.6 42.5 13.7 3.4 10.3 0.14 1.06
Skin (marginal sections) 54.0 18.5 28.4 9.6 0.25 1.10
Ears 60.9 14.1 21.0 8.4 12.6 0.70 3.30
Cattle raw
Lungs 77.5 4.7 15.2 7.3 7.9 1.00 1.60
Ears 69.8 2.3 25.2 10.5 14.7 0.70 2.00
Lips 71.0 4.9 20.3 9.3 11.0 0.90 2.90
Rumen 76.0 3.9 18.0 10.4 7.6 1.40 0.70

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