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What is the color of the capsule shell?
The main material for making hollow capsules is gelatin. The pigment components of the capsule shell are food pigments, such as carmine, amaranth, lemon yellow, olive green, etc., and the toxicity is very low. When gelatin is made into glue, a small amount of additives such as food coloring, plasticizers, preservatives, opacifiers, etc. can be added. The preparation process of hollow capsules can be roughly divided into six processes: sol, dipping, drying, shell pulling, cutting and finishing, which are now completed by automated production lines.
What is the composition of the capsule skin?
Do you know the method of heavy metal detection in HPMC hollow capsules?
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