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All Journal Suara Teknik : Jurnal Ilmiah
Doddy Irawan
Fakultas Teknik, Program Studi Teknik Mesin, Universitas Muhammadiyah Pontianak
Control & Systems Engineering Education Engineering Materials Science & Nanotechnology Mechanical Engineering

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The Influence of Desiccation Level of Preservation Aloe Vera Doddy Irawan
Suara Teknik : Jurnal Ilmiah Vol 1, No 1 (2010): Suara Teknik: Jurnal Ilmiah
Publisher : Fakultas Teknik UM Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29406/stek.v1i1.302

Abstract

Aloe Gel a contained in the leaves, colerless with 99.5% of water content and0.5% solid content. This high water content empowers the chemical reaction andsome microorganism activities to take place. Therefore, we loaked into some praticalprocess so that the Aloe Gel can stay fresh longer. The efforts were concentrated onthe drying process of the leaves. A too high drying temperature will damage the gelcomponents, so the right temperature should be found to minimize the damages.A lab built cabinet dryer was used for convenient control of temperature andeasy air circulation control and timing to preserve the good nutrition and texturecharacteristics. The optimal combination of drying time and temperature was theexpected result of our research.Five time periods were selected, which one 10, 15, 20, 25, and 30 minutes,with varying temperatures. We found out that the best time was between 25 and 30minutes and temperatures between 700 and 800C. The resulting water contentsbetween 97 and 99.5%, while the consumers gave the grade 4, which meant good forthe dried gel.Keywords : Drying ,Cabinet Dryer, Preservation
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