Yudhianto, Ignatius Yuli (2013) OPTIMASI FORMULA GEL EKSTRAK BUAH APEL (Pyrus malus L.) SEBAGAI ANTIOKSIDAN DENGAN KOMBINASI BASIS METIL SELULOSA DAN GLISERIN SECARA SIMPLEX LATTICE DESIGN. Skripsi thesis, Universitas Setia Budi Surakarta.
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Abstract
Apple extracts could potentially have antioxidant activity because it contains flavonoids, tannins, etc.. Direct use of apple extracts less practical, so that the gel made. The addition of metal materials cellulose and glycerin is used as a gelling base. This study aimed to obtain the optimum gel formula with apple extract using additive is methyl cellulose and glycerin based method Simplex Lattice Design. apple extracts by maceration using 70% ethanol was then evaporated to obtain thick extract. Gel made 3 apple fruit extract formula based Simplex Lattice Design. The resulting gel was tested physical properties include organoleptic, viscosity, dispersive power, adhesion, pH, antioxidant activity. Optimum formula that is based on the physical properties of the parameters: viscosity, dispersive power, adhesion, using Design expert softwere version 8.0.6.1. optimum formula obtained in tests made and the physical properties of the gel were analyzed using t-test. Apple gel formula obtained optimum proportion of methyl cellulose and glycerin 2,283 2,717 responses the physical properties of the optimum formula predictions and experimental results showed no significant difference. The antioxidant activity of 163.25 ppm optimum gel. Keywords: optimization of the mixing process, apple extract gel, Simplex Lattice Design.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Uncontrolled Keywords: | optimization of the mixing process, apple extract gel, Simplex Lattice Design |
| Subjects: | R Medicine > RS Pharmacy and materia medica |
| Depositing User: | magdalena kartika ningsih |
| Date Deposited: | 21 Feb 2020 03:16 |
| Last Modified: | 21 Feb 2020 03:16 |
| URI: | http://repo.setiabudi.ac.id/id/eprint/2954 |
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