Dah Feng Capsule Industry Co., Ltd

Yi-Huei Lin

Ruei-Jan Chang

Pei-Hsuan Lee

Hsin-Yi Chao

Chien-Jen Wu

The present disclosure provides an acid resistant capsule shell composition including pectin with a degree of esterification (DE) of about 15% to about 40%, and a degree of amidation (DA) of greater than 0% to about 25%; and a divalent cation. An acid resistant capsule shell and a method for manufacturing the acid resistant capsule shell are also provided in the present disclosure.

Acid resistant capsule shell composition

The present invention provides an acid resistant capsule shell composition comprising a water-soluble enteric polymer, a water-soluble film forming polymer, a coagulant, and a gelling aid. The water-soluble enteric polymer comprises hydrophobic functional groups and hydrophilic functional groups. The present invention further provides a process for preparing an acid resistant capsule shell comprising: dissolving said acid resistant capsule shell composition in deionized water to form a capsule shell solution; heating and then cooling the capsule shell solution to form a capsule shell stock solution; dipping a pin into the capsule shell stock solution and then removing the pin to form a film-coated pin; and drying the film-coated pin to form the acid resistant capsule shell. The acid resistant capsule shell has acidic resistance and the process for preparing the acid resistant capsule shell involves no organic solvent; hence, the problem of organic solvent residues can be prevented.

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Taichung, Taiwan

Yi-Huei Lin