Ganwarin, Maria Dian Putri (2025) FORMULASI DAN UJI AKTIVITAS ANTIOKSIDAN MASKER GEL PEEL-OFF EKSTRAK ETANOL BERAS HITAM (Oryza sativa L. Indica) DENGAN POLYVINYL ALCOHOL SEBAGAI PEMBENTUK FILM LAPIS TIPIS. Other thesis, Universitas Setia Budi.
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Abstract
Radikal bebas dapat memicu kerusakan kulit seperti penuaan
dini, kulit kusam, dan muncul flek hitam. Beras hitam mengandung
antosianin, tokoferol, tokotrienol, serta senyawa fenolik seperti
polifenolat, flavonoid, alkaloid,dan tannin sebagai antioksidan dan
efektif dalam melawan radikal bebas. Penelitian ini dilakukan untuk
menilai kualitas fisik dan stabilitas sediaan masker gel peel-off ekstrak
etanol dari beras hitam (Oryza sativa L. Indica) dengan berbagai
konsentrasi polivinil alkohol, serta mengevaluasi aktivitas antioksidan
sediaan tersebut.
Beras hitam diekstraksi dengan pelarut etanol 96% dengan
ekstraksi maserasi. Ekstrak etanol beras hitam diformulasikan menjadi 3
formula dengan variasi konsentrasi polivinil alkohol 10%, 11%, 12%,
dan satu kontrol negatif. Formulasi masker gel peel-off ekstrak etanol
beras hitam diuji untuk mengetahui parameter mutu fisik, stabilitas
sediaan, serta aktivitas antioksidan menggunakan metode DPPH, dengan
perhitungan nilai IC₅₀ sebagai tolok ukur kemampuan menangkal radikal
bebas. Seluruh data dianalisis secara statistik melalui uji One Way
ANOVA.
Hasil penelitian menunjukkan bahwa seluruh formula masker gel
peel-off ekstrak etanol beras hitam memenuhi parameter mutu fisik.
Formula dengan konsentrasi PVA 11% memberikan hasil karakteristik
fisik terbaik dan nilai IC₅₀ sebesar 48 ppm. Uji statistik One Way
ANOVA menunjukkan n signifikan antar formula, menegaskan bahwa
konsentrasi PVA berpengaruh terhadap mutu fisik dan efektivitas
sediaan.
Free radicals can trigger skin damage such as premature aging,
dull skin, and dark spots. Black rice contains anthocyanins, tocopherols,
tocotrienols, and phenolic compounds such as polyphenols, flavonoids,
alkaloids, and tannins as antioxidants and are effective in fighting free
radicals. This study was conducted to assess the physical quality and
stability of the peel-off gel mask preparation of ethanol extract from
black rice (Oryza sativa L. Indica) with various concentrations of
polyvinyl alcohol, and to evaluate the antioxidant activity of the
preparation.
Black rice was extracted with 96% ethanol solvent by maceration
extraction. The ethanol extract of black rice was formulated into 3
formulas with variations in polyvinyl alcohol concentrations of 10%,
11%, 12%, and one negative control. The formulation of the black rice
ethanol extract peel-off gel mask was tested to determine the parameters
of physical quality, stability of the preparation, and antioxidant activity
using the DPPH method, with the calculation of the IC₅₀ value as a
benchmark for the ability to ward off free radicals. All data were
analyzed statistically through the One Way ANOVA test.
The results showed that all formulas of black rice ethanol extract
peel-off gel mask met the physical quality parameters. The formula with
a PVA concentration of 11% gave the best physical characteristics and an
IC₅₀ value of 48 ppm. The One Way ANOVA statistical test showed
significant differences between formulas, confirming that the PVA
concentration affected the physical quality and effectiveness of the
preparation.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Antioksidan, beras hitam, masker gel peel-off, PVA, DPPH, One Way ANOVA Antioxidan, black rice, peel-off gel mask, PVA, DPPH, One Way ANOVA |
| Subjects: | Q Science > Q Science (General) Q Science > QK Botany R Medicine > RZ Other systems of medicine |
| Divisions: | Universitas Setia Budi > Fakultas Farmasi > S1 Farmasi |
| Depositing User: | Unnamed user with email baa.si@setiabudi.ac.id |
| Date Deposited: | 23 Dec 2025 02:57 |
| Last Modified: | 23 Dec 2025 02:57 |
| URI: | https://eprints.setiabudi.ac.id/id/eprint/78 |
