Claim Missing Document
Check
Articles

Found 23 Documents
Search

Antibacterial Synergy Detection of Lignin Extract from Oil Palm Empty Fruit Bunches (Opefb) Combined with Amoxicillin Against Staphylococcus Aureus Using The Azdast Method Hendri, Rifki Anshory; Suryadi, Herman; Hayun, Hayun
Journal of Applied Agricultural Science and Technology Vol. 8 No. 1 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i1.191

Abstract

Oil palm empty fruit bunches (OPEFB) are waste generated by the palm oil industry and are generally considered an environmental problem due to their large quantity and difficult recyclability. This study's objective was to examine the potential of OPEFB lignin extract combined with amoxicillin in inhibiting the growth of Staphylococcus aureus bacteria. The Synergism Test of the OPEFB lignin extract-antibiotic combination was conducted using the AZDAST method (Ameri Ziaei Double Antibiotic Synergism Test). The lignin extraction process was a steam process using a 4% oxalic acid solution under optimal conditions. Then, Calcium ions precipitate 4% oxalate by adding Ca(OH)2 to the extract. The Lignin content was determined by UV-Vis spectrophotometry at 280 nm, and then the lignin extract was combined with antibiotics for antibacterial assay. The results showed a lignin content of 1.06 %. The AZDAST test results revealed clear zones from the combination of OPEFB lignin extract and amoxicillin with a diameter of 20.23 mm for the extract containing oxalate and 15.83 mm for the oxalate-free extract. Meanwhile, on average, the clear zone of single amoxicillin was only 14.13 mm. Based on these results, the combination of OPEFB lignin extract with amoxicillin was stronger than amoxicillin alone in inhibiting the growth of S. aureus, but it was not significantly different (p-value> 0.05). In conclusion, the potential of OPEFB lignin extract synergistically worked with the antibiotic amoxicillin in inhibiting the growth of S. aureus.
Antibacterial Potential of Cinnamomum culilaban Bark Ethanolic Extract Prepared by Ultrasound-Assisted Extraction against Oral Pathogens Kurniatri, Arifayu Addiena; Elya, Berna; Suryadi, Herman
Jurnal Kefarmasian Indonesia VOLUME 14, NUMBER 2, AUGUST 2024
Publisher : Pusat Penelitian dan Pengembangan Biomedis dan Teknologi Dasar Kesehatan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Cinnamomum culilaban is one of the native Indonesian plants that has been used as medicinal plant. The local community on Seram Island uses the stem bark to treat toothaches. Eugenol, a chemical compound found in Cinnamomum culilaban, is used in dental practice and has antibacterial activity. Research on Cinnamomum culilaban is very limited, its activity against bacteria that cause oral infections has not been reported. This study aims to investigate the antibacterial activity of Cinnamomum culilaban bark extract against oral pathogens Porphyromonas gingivalis, Streptpcoccus mutans, and Enterococcus faecalis. The extraction was carried out using 96% ethanol with ultrasound-assisted extraction method. Disc diffusion assay was conducted to investigate the antibacterial activity. The concentration of extract used were 50%, 25%, and 12.5% (b/v) in DMSO. Eugenol (50% v/v in DMSO) was used as positive control. The phytochemicals screening was carried out to investigate the chemical compounds contained in Cinnamomum culilaban bark extract. Extraction of Cinnamomum culilaban bark using 96% ethanol with the ultrasound-assisted extraction method obtained a yield of 23.36±0.49%. The extract contains alkaloids, flavonoids, tannins, saponins, phenolics, and steroids/terpenoids. The ethanolic extract of Cinnamomum culilaban bark has inhibitory activity against Streptpcoccus mutans and Enterococcus faecalis. Cinnamomum culilaban bark has the potential as an antibacterial agent.
A Preliminary Study of Formulations of Transfersomes for Improved Transdermal Peptide Delivery Hutabarat, Rahmi; Bahtiar, Anton; Suryadi, Herman; Surini, Silvia
Indonesian Journal of Pharmaceutical Science and Technology Vol 12, No 1 (2025)
Publisher : Indonesian Journal of Pharmaceutical Science and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijpst.v12i1.55269

Abstract

Peptide-containing dosage forms are often administered through invasive injection. However, due to their great ultra-mobility, transfersomes offer a promising alternative for non-invasive and non-allergenic transdermal peptide delivery. Therefore, this study aimed to conduct preliminary investigations into the formulations of transfersomes for transdermal peptide delivery. Transfersomes were prepared using the thin-layer hydration method with Tweenâ 80 as an edge activator and Phospholiponâ 90G as vesicle formers. Four formulations: F1, F2, F3, and F4 were optimized with various ratios of the two components, including 90:10, 85:15, 80:20, and 75:25. Particle size, zeta potential, deformability index, polydispersity index (PDI), and vesicle morphology were used to assess transfersomes. As a result, the zeta potential was -37.2 ± 2.19, the deformability index was 1.78 ± 0.03 and the smallest vesicle size (147 ± 1.93), PDI value of 0.105 ± 0.01 and spherical were all found in the optimal formula, F3, with an 80:20 ratio. These results suggest significant potential for the further development of transfersomes using Tweenâ 80 and Phospholiponâ 90G as effective transdermal peptide delivery systems.