TISSUE ENGINEERING

Typical analysis

Independent analysis

Southern Lights use independent accredited laboratories to certify product sent to customers.

A typical analysis of Type I insoluble collagen is:

Gross composition 

Moisture                      6 %

Lipid                           <0.1 %

Total nitrogen              15.9 %

Ash                              0.6   %

pH (1% suspension)    2.8

Amino acid analysis 

The data are compared to reference values and demonstrate that all protein is collagen

Data labeled Steven are from; Steven F S and Jackson D S Biochem. J. (1967) 104, 534

Other analysis

Further analysis, to meet ASTM F2212 (and customer) requirements includes measurement of; heavy metals, bio-burden, endotoxin level, electron micrographs, absence of tryptophan (demonstrates absence of other proteins), and cyanogen bromide digest (demonstrates absence of other collagen types).