Anissa Fitria, Eli Rohaeti, Jaslin Ikhsan, Endang Widjajanti Laksono, Dewi Yuanita Lestari
The objectives of the research were to determine the characteristics of silver nanoparticles prepared with water hyacinth (Eichhornia crassipes) leaf extract and to determine the character of the skin modified with silver nanoparticles. Procedures were carried out by extracting of hyacinth leaves and biosynthesizing of silver nanoparticles using three methods namely microwave, extraction and ultrasonic methods, and also characterizing of pickle goat's skin before and after modification with silver nanoparticles. The characteristic of silver nanoparticles were determined by using UV-Vis spectrophotometer and Particle Size Analyzer. Characterizations of modified pickle goat's skin were hydrophobicity test with sessile drop method and using Corel Draw X5 software, mechanical test, antimicrobial test with disk diffusion method, and mass loss, and also degradability of pickle goat's skin. Antimicrobial testing used Escherichia coli and Staphylococcus epidermidis, and also the fungus of Candida albicans. The optimum result in the preparation of nanoparticles was by using the ultrasonic method. Antimicrobial activity against Escherichia coli, Staphylococcus epidermidis, and Candida albicans showed that antimicrobial activity of modified pickle by silver nanoparticles via the ultrasonic method was two times higher than pickle goat's skin without modification of silver nanoparticles, and the biodegradation test also showed the best results in the ultrasonic method with the loss mass of skin were two times higher than skin without modification of silver nanoparticles. The biodegradation test showed varying results in each nanoparticle preparation method, but the ultrasonic method showed that the biodegradability value decreased with an increasing incubation time of biodegradation and the highest biodegradability occurred on the fifth day. © 2023 Author(s).
Department of Chemistry Education, Universitas Negeri Yogyakarta, Indonesia
