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Formulasi dan Uji Stabilitas Sediaan Face Spray Ekstrak Etanol Daun Pepaya (Carica Papaya L.) Adianti Putri Alitonang; Ikhsan H. Amir; Milda Milda
Jurnal Riset Ilmu Kesehatan Umum dan Farmasi (JRIKUF) Vol. 3 No. 1 (2025): Januari : Jurnal Riset Ilmu Kesehatan Umum dan Farmasi (JRIKUF)
Publisher : LPPM STIKES KESETIAKAWANAN SOSIAL INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57213/jrikuf.v3i1.544

Abstract

Background: Papaya leaves (Carica papaya L.) contain various chemical compounds, such as alkaloids, which can cause a bitter taste and exhibit activity against Propionibacterium acnes, the bacteria responsible for acne or acne vulgaris. Objective: To determine the feasibility of papaya leaf ethanol extract as the main active ingredient in the formulation of a face spray and to assess the stability of different concentration variations in the ethanol extract face spray formulation. Methods: This study used an experimental method with varying concentrations of papaya leaf ethanol extract: F1 (8%), F2 (12%), and F3 (15%). Results: Organoleptic tests indicated that the formulations with ethanol extract concentrations of F1 (8%), F2 (12%), and F3 (15%) remained physically stable. The spray dispersion for each ethanol extract concentration—F1, F2, and F3—was 7 cm, 6 cm, and 6 cm, respectively, with a pH of 5. The findings demonstrated that the ethanol extract could be formulated as a face spray since it did not cause irritation, as confirmed by an irritation test on 10 respondents. Implications: The variations in papaya leaf ethanol extract concentrations—F1 (8%), F2 (12%), and F3 (15%)—met the established Indonesian National Standard (SNI).
Synthesis and Characterization of Graphene Oxide-Based Composite Membranes for Enhanced Seawater Desalination Process Efficiency Andi Haslinah; Lieza Corsita; Setiarto Pratigto; Indah Tri Rizky; Adianti Putri Alitonang
Science Journal Get Press Vol 3 No 1 (2026): January, 2026
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v3i1.354

Abstract

Graphene oxide (GO) is a promising nanomaterial for membrane-based desalination due to its tunable interlayer structure and abundant surface functionalities. This study synthesized and characterized a graphene oxide titanium dioxide (GO–TiO₂) composite membrane via vacuum-assisted filtration to enhance seawater desalination performance. Characterization using XRD, FTIR, SEM, and contact angle analysis confirmed uniform TiO₂ incorporation, which expanded GO interlayer spacing from 0.77 nm to 0.90 nm, increased hydrophilicity, and improved structural stability. Forward osmosis (FO) tests using 3.5 wt% NaCl feed solution showed that the GO–TiO₂ membrane achieved over 99% salt rejection and a 125% increase in water flux compared to pristine GO membranes. TiO₂ acted as a nano-spacer and hydrophilic agent, reducing GO restacking and facilitating water transport. These results indicate that the GO–TiO₂ composite membrane offers enhanced permeability, selectivity, and durability, making it a promising candidate for sustainable seawater desalination.