Optimization of Keratin Hydrolysate Extraction from Tannery Sheep Hair Waste

Table 2

Fat and ash content of raw and treated sheep hair waste.

Trial no		1	2	3	Mean ± SD
Fat content	Before degreasing	5.52	5.22	4.87	5.20 ± 0.3
	After degreasing	3.06	2.87	2.14	2.69 ± 0.5
Ash content		12.8	12.72	12.68	12.73 ± 0.1
Nitrogen content		14.98	15.12	15.12	15.09 ± 0.1