The liming process (B-type gelatin)
The liming process produces a gelatin with a rather narrow iso-electric point (IEP) range of 4,6-5,4. In practice, the hides or demineralised bones are placed in liming pits and soaked in a lime suspension over a period of 14 days. The lime suspension is replaced periodically. At the end of this treatment, the raw material is washed thoroughly to remove residual lime
The Raw Material 'Bovine Hide Split
The second major source of collagen for the manufacture of gelatin is fresh bovine hide. The thickness of the hide depends on the climate where the bovines are raised. The warmer the climate, the thinner is the hide. The external side of this material contains less collagen and is almost exclusively used for the manufacture of leather. The meat side is made up of fatty tissue, which is expertly removed.

The central layer, however, is practically pure collagen, and is thus an excellent raw material for the manufacture of gelatin. After pretreatment with alkali, a process that swells the hide and enables it to be dehaired, the hide is cut into three separate layers using horizontal cutters. This process gave rise to the designation 'split' used throughout the industry.
APPLICATION GELLY STRENGTH(BLOOM) VISCOSITY PARTICLE SIZE
FOOD ADDITIVES 160-210 LOW GUM, JELLY, YOGURT
FOOD ADDITIVES 220-280 MEDIUM-HIGH PIE, MASHMALLOW, CANDY, JELLY, JELLY BEAN
PHARMACEUTICAL 200-250 MEDIUM SOFT CAPSULE
PHARMACEUTICAL 300 M MEDIUM-HIGH SOFT CAPSULE