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Nutraceutical and Pharmaceutical
Enteric Coating
Shellac is a natural gastro-resistant polymer, but it will dissolve at the higher pH-levels of the intestines.
Formulated coatings with SWANLAC ASL 10 aqueous shellac solution meets the pharmacopeia requirements of acid resistance and release at pH 6.8..
The dissolution and disintegration properties can be modified by formulation with other polymers, e.g., HPMC, Na-alginates etc.
By addition of a plasticiser, the flexibility of the film can be improved. Food grade plasticisers are Glycerine, PEG 400, TEC etc.
Typical weight gain is 3%-4% for tablets, capsules & softgels. For pellets weight gain is around 20%-30%.
Please contact us for assistance with formulation with SWANLAC ASL 10. We provide technical guidance for formulation with SWANLAC ASL 10 aqueous shellac solution as well as process parameters for coating with SWANLAC ASL 10.
Taste & Odour masking
For taste & odour masking, SWANLAC® ASL 10 can be used as such or formulated with a water-soluble polymer and a plasticiser.
In many coating applications, HPMC (about 5%) is used for taste masking. This requires a higher weight gain which leads to increased coating times.
By formulating SWANLAC® ASL 10 with low viscous HPMC, the weight gain can be considerably reduced (about 1%—1.5%), compared to an HPMC coating only.
Please contact us for assistance with formulation with SWANLAC ASL 10. We provide technical guidance for formulation with SWANLAC ASL 10 aqueous shellac solution as well as process parameters for coating with SWANLAC ASL 10.
Barrier Coating
Films based on SWANLAC® ASL 10:
have a low water vapour and oxygen permeability.
are water/humidity resistant.
prevent discolouration (bleeding) due to moisture penetration.
Very smooth surface, easy to swallow and completely Natural.
Please contact us for assistance with formulation with SWANLAC ASL 10. We provide technical guidance for formulation with SWANLAC ASL 10 aqueous shellac solution as well as process parameters for coating with SWANLAC ASL 10.
Sustained release
SWANLAC ASL 10 aqueous shellac solution can be formulated for release at specific areas in the intestine.
Local and systemic prolonged delivery for targeting the lower part of the gastrointestinal tract can also be done with SWANLAC ASL 10 aqueous shellac solution. By adjustment of the formulation, release at different areas can be targeted.
Please contact us for assistance with formulation with SWANLAC ASL 10. We provide technical guidance for formulation with SWANLAC ASL 10 aqueous shellac solution as well as process parameters for coating with SWANLAC ASL 10.
Begin your Shellac journey with A.F. Suter
Shellac is a versatile natural material with a number of applications. Shellac also includes a wide range of products so it is very important to identify the correct grade for your application. Our expert team have the knowledge and experience to identify the right solution for your needs. If you have any questions, or would like more information about our products and services, get in touch today.
