|
Abstract:
|
Collagen is a type of protein obtained from skin, bones and organs, whether derived from mammals, reptiles, birds or fish. Collagen that circulates in Indonesia is generally imported. This suggests the need for domestic collagen was so high that it required an increase in collagen production, where chicken feet skin is an alternative. The purpose of the research is to find the right formula for producing collagen chicken feet skin and to get the best collagen quality of HCl and NaOH pretreatment processes. Pretreatment occurs using HCl 2%, HCl 4%, NaOH 2% and NaOH 4%. The research show that the highest average of yield in NaOH 4% pretreatment with a percentage 59.67 ± 12.70 and the lowest of yield in NaOH 2% pretreatment with a percentage 37.67 ± 4.51. The highest average of pH in NaOH 4% pretreatment which was 12.03 ± 0.82 and the lowest average of pH in HCl 4% pretreatment which was 2.7 ± 0.45. The highest average of the rough weight collagen in NaOH 4% pretreatment was 48.93 ± 0.69 and the lowest average of rough weight collagen in HCl 2% pretreatment was 14.78 ± 0.38. The right formula for producing chicken feet skincollagen is use NaOH 4% and HCl 4% pretreatment and the best quality of collagen was produced by NaOH 4% and HCl 4% pretreatment. |