Ossein from Baltic cod backbone was obtained after extraction of non-collagenous protein with 0.1 M NaOH solution and demineralization with 1.0 M HCl solution. The extractions were performed at 4 C for24, 48 and 72 h using a solid/solution ratio from 1:4 to 1:8 (w/v). After 48 h of extraction in 0.5 M acetic acid only about 25% of collagen was dissolved. After 48 h of extraction at optimal concentration of pepsin(4 mg/g ossein) the collagen was dissolved almost completely. Collagen solubilized in acetic acid could bealmost completely precipitated with k-carrageenan, at protein/polysaccharide ratio 1:1 (w:w). The denaturation temperature of Baltic cod backbone collagen was 14.4 C and the conversion factor of hydroxyproline to collagen was 15.7.
Authors
- Elżbieta Żelechowska,
- prof. dr hab. inż. Maria Sadowska link open in new tab ,
- Magdalena Turk link open in new tab
Additional information
- Category
- Publikacja w czasopiśmie
- Type
- artykuł w czasopiśmie wyróżnionym w JCR
- Language
- angielski
- Publication year
- 2010
