Fadli, Justitia Cahyani
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Formulation of lotion ethanolic extract of rosella flower petals (Hibiscus sabrariffa L.) and antioxidant activity Fadli, Justitia Cahyani; Lasanudin, Rindi Ibrahim
Journal of Halal Science and Research Vol. 5 No. 1 (2024): February
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jhsr.v5i1.7151

Abstract

Rosella flowers (Hibiscus sabrariffa L.) are plants that are useful as antioxidants. The content that acts as an antioxidant is a flavonoid compound. This study aimed to determine the effect of giving calliandra honey as a multiple active ingredient and single active ingredient (rosella petal extract, calliandra honey )  and ethyl vitamin C as an active ingredient. The lotion of ethanolic extract of rosela flower petals was made with three active ingredients: ethanolic extract of roselle flower petals with a concentration of 2.5%, calliandra honey 2.5%, and ethyl vitamin C 2%. Then, calliandra honey and ethanol extract of roselle flowers are combined with a concentration of extract 2.5% and calliandra honey (1.5%, 2%, and 2.5%). The physical and stability tests are the organoleptic, homogeneity, viscosity, dispersibility, pH, lotion stability, and the value of lotion's antioxidant activity. The activity test was carried out using the 2,2-Diphenyl-1-Picryhidrazil (DPPH) method, and the IC50 of inhibition was calculated. The results of the study showed that all lotion formulations had antioxidant activity. The highest antioxidant activity was obtained in formula three, which had a value of 95.2 ppm (2.5: 2.5 %). Based on the Kruskal Wallis test, the asymp value was obtained. Sig. 0.000, which indicates that there is a significant difference in antioxidant activity. This is because the percent inhibition of each sample has a large enough difference.
Autentikasi Minyak Biji Jagung Zea mays L.: Pengaruh Metode Ekstraksi dan Analisis Komposisi Menggunakan Metode Gas Cromatoghraphy-Mass Spectrometry (GC-MS) Fadli, Justitia Cahyani; Guntarti, Any; Salamah, Nina
JPSCR: Journal of Pharmaceutical Science and Clinical Research Vol 9, No 2 (2024)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jpscr.v9i2.85367

Abstract

Minyak jagung mengandung protein dan asam lemak yang melimpah, sehingga diperlukan metode dan kondisi ekstraksi yang tepat untuk menghasilka kualitas minyak berkualitas tinggi. Minyak dapat diperoleh dengan cara pemanasan menggunakan alat Soxhlet maupun Reflux dan akan terisolasi dengan pelarut non polar. Penelitian ini bertujuan untuk mengoptimalkan ekstraksi minyak jagung manis, membandingkan kualitas minyak jagung dari dua metode isolasi serta menganalisis komposisi asam lemak menggunakan GC-MS. Minyak jagung manis yang dihasilkan dari dua metode isolasi Reflux dan Soxhlet dibandingkan dengan parameter SNI dan diidentifikasi komposisi asam lemaknya menggunakan instrumen GC-MS. Parameter kualitas minyak biji jagung manis yang dihasilkan dari metode Soxhlet dan Reflux, memiliki karakteristik warna, bau, indeks bias, kadar air, bilangan asam, bilangan peroksida, dan bilangan iod yang memenuhi persyaratan SNI. Hasil analisis GC-MS menunjukkan metode Reflux menghasilkan 3 kandungan senyawa yaitu, asam palmiat (31,37%), linoleoyl chloride (67,15%), dan asam ftalat (1,48%), sedangkan metode Soxhlet menghasilkan 2 kandungan senyawa, yaitu asam palmiat (32,28%) dan asam linoleat (66,89%). Hasil penelitian menunjukkan bahwa variasi metode ekstraksi minyak biji jagung memengaruhi kualitas minyak serta kandungan asam lemak yang dihasilkan.