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Innovations in the selection of new materials, new processes and new industrial applications demonstrated Rousselots® continuous effort to meet the current market requirements.
Rousselot® supplies gelatine from:
Pig Skin
Bovine Hides
Limed Bones
Fish Skin
Product Range Collagen Hydrolysate
PURAGEL, our established product.
The Rousselot® gelatine qualities
The gel strength (of a 6 2/3% solution left at 10 °C for 17 hours) and the starting material used for gelatine production are the two most important parameters to specify a gelatine type. In addition, the so-called isoelectric point gives information on the manufacturing process and the raw material.
| Type A | Type B | ||
| Gel Strength (Bloom) | 80 - 300 | 80 - 260 | |
| Isoelectric Point | 7.0 - 9.0 | 4.7 - 5.4 | |
| Ash | 0.1 - 2.0 | 0.3 - 2.0 |
Other important quality aspects include the purity criteria (e.g. water, ash, SO2 content, microbial limits ), which are similar across all types of gelatine, as well as the particle size of which depends on the choice of dissolving method used in the manufacturing process.
Rousselot has a wide range of products. For this range of products a strict designation system was introduced to allow a clear product assignment. All Rousselot® quality names are composed as follows:
-
- the Bloom Value depends on the customers application (from 25 to 250),
- the Designation corresponds to Table 2,
- and the particle size can be selected from our standard particle sizes (Table 3).
| Designation | Raw Material | |
| Rousselot® Gelatine | P | porcine, acid processed |
| B | bovine, alkaline processed | |
| H | bovine hides | |
| PS | porcine skin, acid processed | |
| AP | porcine bones, acid processed | |
| LB | bovine bones, alkaline processed | |
| AB | bovine bones, acid processed | |
| LH | bovine hides, alkaline processed | |
| AH | bovine hides, acid processed | |
| LP | porcine bones, alkaline processed | |
| FG | Fish |
Table 2:
Rousselots Quality Designations
| 8 mesh | 2.36 mm |
| 18 mesh | 1.00 mm |
| 30 mesh | 0.60 mm |
| 60 mesh | 0.25 mm |
| We offer also other particle sizes depending on gelatine type and production site. | |
Table 3: Standard particle sizes of Rousselot® gelatine
The isoelectric point, is an intrinsic property of gelatine which might be important for some applications, determined by raw materials pre-treatment and the type of process. Similarly, the viscosity (of a 6 2/3% gelatine solution at 60 °C) can also be of importance.
