Abstract
Soft-shell capsules are prepared herein using hydroxypropyl starches from different botanical sources (maize, waxy maize, potato, and cassava) as a replacement for animal-based materials such as gelatin. The physical, mechanical, and morphological properties of the starch films are characterized to investigate the possibility of manufacturing soft-shell capsules. Starch films originating from tubers, including potato and cassava, exhibit higher tensile strength, resulting in higher hardness of the soft-shell capsules compared to those originating from maize and waxy maize starches. None of the starch-based soft-shell capsules broke in a brittleness test, and there are no distortion defects in the seams that seal the capsules. Disintegration and stability tests over six months show that although the soft-shell capsules manufactured from maize and potato starch disintegrate faster than those from waxy maize and cassava starch, all of the capsules disintegrate within 1200 s, which is acceptable for commercial application.
| Original language | English |
|---|---|
| Article number | 106871 |
| Journal | Polymer Testing |
| Volume | 91 |
| DOIs | |
| Publication status | Published - 2020 Nov |
Bibliographical note
Funding Information:This research was supported by Korea University grant, School of Life Sciences and Biotechnology for BK21PLUS (Korea University, Republic of Korea) and Institute of Biomedical Science & Food Safety (Korea University, Republic of Korea) . This work was also supported by the corporation of Suheung Capsule (Republic of Korea) and the Korea Food Research Institute (Project No. E0164800-05, Republic of Korea) .
Publisher Copyright:
© 2020
Keywords
- Disintegration
- Gelatin alternative
- Physical property
- Soft-shell capsule
- Starch
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics