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Vera Estefania Kaban
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Uji Efektivitas Gel Ekstrak Daun Jarak Pagar (Jatropha Curcas L.) sebagai Penyembuhan Luka Sayat Vera Estefania Kaban; Ginting, Junius Gian; Nasri, Nasri; Sagala, Hasel Untung Bersinar; Tarigan, Serly Annisa Br
INSOLOGI: Jurnal Sains dan Teknologi Vol. 3 No. 4 (2024): Agustus 2024
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v3i4.3975

Abstract

Indonesia is known for having abundant biological riches and many plants that can be used as medicine. One of the medicinal plants that is often used by Indonesian people is Jatropha curcas leaves. Jatropha plants are currently used as traditional medicine to treat wounds. One common medication used for cuts is povidone iodine which is effective against bacterial infections. However, povidone iodine also has side effects such as irritation, toxic reactions and burning skin. Jatropha leaves have strong antioxidant activity, so it is necessary to innovate in wound treatment using natural ingredients in the form of gel preparations. The gel preparation was chosen because it is practical, not sticky, easily absorbed by the skin, and works directly on wound tissue. The aim of this study was to assess how well a gel made from ethanol extract of jatropha leaves accelerates the healing of cut wounds in white mice. Jatropha curcas leaves were extracted using the maceration method using 96% ethanol as the solvent. Gel stability testing was carried out organoleptically, homogeneity test and spreadability test. Jatropha leaf extract gel was tested on mice that had been given incisions 1.4 cm long with formulations of 10%, 15% and 20% jatropha leaf extract concentrations. Observations were carried out for seven days. Research findings showed that giving white rats gel containing jatropha leaf extract significantly accelerated their ability to repair wounds
Formulasi dan Uji Aktivitas Antibakteri Gel Minyak Atsiri Rimpang Lengkuas Merah (Alpinia purpurata K. Schum) terhadap Propionibacterium acnes Astriani Natalia Br Ginting; Vera Estefania Kaban; Roy Indrianto Bangar; Daimah W. S. Harahap
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 1 (2025): Februari 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i1.4844

Abstract

Acne is a common dermatological condition caused by the bacterial infection of Propionibacterium acnes, leading to skin inflammation. Red galangal (Alpinia purpurata K. Schum) is known to exhibit antibacterial activity due to its essential oil content, flavonoids, and alkaloids. This study aims to formulate and evaluate the antibacterial activity of a gel preparation based on red galangal rhizome essential oil against Propionibacterium acnes. The research follows a laboratory experimental design, including the extraction of red galangal rhizome essential oil via maceration, formulation of the gel, and evaluation of its physical properties, such as pH, homogeneity, spreadability, and antibacterial activity using the disc diffusion method. The results demonstrated that the gel formulation met the required physicochemical standards, with a pH ranging from 6.4 to 6.8, good homogeneity, and an optimal spreadability of 5–7 cm. The antibacterial test revealed a significant inhibitory effect against Propionibacterium acnes, with an inhibition zone of up to 11.24 mm at a 15% concentration. These findings suggest that red galangal rhizome essential oil possesses strong antibacterial potential, making it a promising candidate for natural topical acne treatment. In conclusion, the red galangal essential oil gel exhibits favorable antibacterial activity against Propionibacterium acnes and has potential as an alternative acne treatment. Further studies are necessary to enhance the stability and efficacy of the formulation for optimal clinical applications.
Uji Aktivitas Antijamur Nanopartikel Zink Oksida (ZnO) Ekstrak Kulit Jengkol terhadap Candida Albicans Ica Dwi Patricia; Vera Estefania Kaban; Astriani Natalia Br Ginting
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 1 (2026): Februari 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i1.7539

Abstract

Natural materials are increasingly being used as sources of bioactive chemicals due to increased concerns about safety, sustainability, and environmental effect. Jengkol peel is one such natural material with potential because it contains various secondary metabolites compounds that have biological activity. On the other hand, Candida albicans fungal infections remain a health problem, while conventional antifungal options are limited and have the potential to cause side effects. Zinc oxide (ZnO) nanoparticles are known to have broad antimicrobial activity, and their synthesis can be carried out in an environmentally friendly manner through a green synthesis approach using natural materials. This study aims to test the antifungal activity of ZnO nanoparticles synthesized using jengkol peel extract against Candida albicans. The study was conducted experimentally. Antifungal activity was tested using the well diffusion method with various concentrations of ZnO nanoparticles. The results showed the formation of an inhibition zone around the well, indicating the antifungal activity of ZnO nanoparticles. The increase in ZnO nanoparticle concentration is directly proportional to the increase in inhibition zone diameter, with the highest inhibition of 14 mm categorized as moderate activity. This study proves that jengkol-based ZnO nanoparticles have the potential to be developed as an environmentally friendly alternative antifungal agent.
Perbandingan Ektrak Konvensional dengan Green Ektraksi Umbi Porang (Amorphophallus Muelleri) terhadap Aktivitas Antioksidan Pasti Marito Samosir; Roy Indrianto Bangar; Vera Estefania Kaban
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 1 (2026): Februari 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i1.7536

Abstract

Porang tuber (Amorphophallus muelleri) contains various bioactive compounds with potential antioxidant activity, while extraction efficiency is strongly influenced by the applied method. This study aimed to compare conventional and environmentally friendly extraction techniques, including maceration, Soxhlet extraction, Microwave-Assisted Extraction (MAE), and Ultrasonic-Assisted Extraction (UAE), using 70% ethanol as the solvent. Antioxidant activity was evaluated using the DPPH radical scavenging assay and expressed as IC₅₀ values. The results showed that differences in extraction methods significantly affected antioxidant activity. Soxhlet extraction exhibited the highest antioxidant activity with the lowest IC₅₀ value (0.1788 µg/mL), followed by MAE (0.4312 µg/mL), maceration (0.6315 µg/mL), and UAE (0.6574 µg/mL). The superiority of the Soxhlet method is related to continuous solvent reflux and heat-assisted mass transfer, which enhance the release of antioxidant compounds. These findings confirm that porang tuber is a promising natural antioxidant source, with Soxhlet extraction identified as the most effective method under the applied experimental conditions for future development of functional food, nutraceutical, and pharmaceutical applications.
Co-Authors Astriani Natalia Br Ginting Daimah W. S. Harahap Ginting, Junius Gian Ica Dwi Patricia Nasri Nasri Pasti Marito Samosir Roy Indrianto Bangar Sagala, Hasel Untung Bersinar Tarigan, Serly Annisa Br