Latip, Dayang Norlaila Hj. (2025) Development And Release Mechanism Of The Selected Active Compounds Encapsulated Porous Sago Starch For Active Packaging Applications. PhD thesis, Perpustakaan Hamzah Sendut.
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Abstract
Active compounds play a critical role in the effectiveness of active packaging but are often vulnerable to degradation under harsh conditions, limiting their functionality. This study aims to develop a sago starch-based porous carrier designed to protect these compounds and enable their controlled release in active packaging applications. The combination of freeze thaw pre-treatment, ultrasonic, and enzyme (ft), resulted in significant formation of pore structures on the sago starch granule surface. The enthalpy of gelatinization decreases from 3.32 j/g for native samples to 2.98 – 3.13 j/g for treated samples due to pore formation. Thermogravimetric analysis showed a similar trend, with the native sample’s temperature dropping from 340 °c to 332 – 334 °c after modification. Increasing the surface area in ft samples significantly enhances water and oil absorption capacity by up to 37.04% and 108.74% respectively. Variations in pore formation significantly affected encapsulation efficiency, with ft demonstrating the highest encapsulation efficiency across all compounds, ranging from 0.41 to 9.86% for individual compounds, and 21.8 to 45.99% for mixed compounds, in comparison to other treated starches.
| Item Type: | Thesis (PhD) |
|---|---|
| Subjects: | T Technology > T Technology (General) > T1-995 Technology(General) |
| Divisions: | Pusat Pengajian Teknologi Industri (School of Industrial Technology) > Thesis |
| Depositing User: | Mr Hasmizar Mansor |
| Date Deposited: | 18 Jun 2026 04:03 |
| Last Modified: | 18 Jun 2026 04:03 |
| URI: | http://eprints.usm.my/id/eprint/64387 |
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