Table 1 Molecular features (taxonomy, MW (kDa) of ACS, backbone cleavage percent, area of DKPs and deamidation degree) of standard collagen and gelatine and animal glue samples.
From: Characterization of the secondary structure, renaturation and physical ageing of gelatine adhesives
Sample name | Taxonomy | MW (kDa) of ACS | Backbone cleavage percent | Sum of the normalized areas of all DKPs *10−4 | Deamidation degree*** | |
|---|---|---|---|---|---|---|
Standards | Collagen | Bos taurus | – | ~ 30% | – | + |
Gelatine A | Sus scrofa | – | ~ 35% | – | + + | |
Gelatine B | Bos taurus | – | ~ 35% | – | + + | |
Hide Pure (HP) glues | HP3* (rabbit glue) | Bos taurus | ≥ 30 | 25% | 144 | + + + |
HP4* (rabbit glue) | Bos taurus | ≥ 40 | ~ 10% | 146 | + + + | |
HP6** (fish glue) | Bos taurus | ≥ 60 | 25% | 157 | + + + | |
HP8** (rabbit glue) | Bos taurus | ≥ 50 | ~ 15% | 239 | + + | |
Hide Mixed (HM) glues | HM1* (rabbit glue) | Bos taurus/Sus scrofa | ≥ 50 (with some fraction at lower molecular weight) | ~ 35% | 165 | + + |
HM4** (rabbit glue) | Bos taurus/ Oryctolagus cuniculus | ≥ 50 (with traces at lower molecular weight) | ~ 20% | 126 | + + | |
HM5** (rabbit glue) | Oryctolagus cuniculus/ Sus scrofa | ≥ 70 (with traces at lower molecular weight) | ~ 25% | 156 | + | |
Bone Mixed (BM) glues | BM1* (strong glue) | Bos taurus/ Sus scrofa | ~ 25; ~ 60; ≥ 100 | ~ 60% | 207 | + + |
BM2* (strong glue) | Bos taurus/ Sus scrofa/ Equus asinus | ~ 25; ~ 60; ≥ 100 | ~ 70% | 197 | + + | |
BM3** (strong glue) | Bos taurus/ Sus scrofa/ Equus asinus | ~ 25; ~ 60; ≥ 100 | ~ 45% | 181 | + + | |
BM4** (strong glue) | Bos taurus/ Sus scrofa/ Equus asinus | ~ 25; ~ 60; ≥ 100 | ~ 30% | 214 | + + | |
BM5** (strong glue) | Bos taurus/ Sus scrofa/ Ovis aries/ Equus asinus | ~ 25; ~ 60; ≥ 100 | ~ 85% | 174 | + + |
