@article{Ermawati_Putro_Amaris Susanto_2023, title={The Characteristic and Antibacterial Activity of Nanosilver Biosynthetic using Sweet Orange}, volume={11}, url={https://jurnal.ugm.ac.id/v3/JFPS/article/view/5760}, DOI={10.22146/jfps.5760}, abstractNote={<p>Sweet orange contains citric acid and ascorbic acid that act as a silver ion bioreducer to form nanosilver (AgNPs). Silver ion green synthesis using sweet orange peel resulted in smaller particle sizes than <em>C. lemon</em> and <em>C. limeta</em>. Therofore, this study aims to determine the characteristic of nanosilver biosynthetic using sweet orange bioreductor and antibacterial activity. Silver nitrate solution of 1.0 mM was mixed with sweet orange juice - peel infusion in ratio of 3.0: 0.0; 1.5: 1.5; and 0.0: 3.0 mL. The process was conducted using a water bath at 60 ˚C for 45 minutes. The formation of AgNPs is indicated by a color change from colorless to yellowish-brown using UV/Vis spectrophotometer and PSA. The stability test of AgNPs is determined for 30 days storage at room temprature and their antibacterial activity against&nbsp;<em>S. aureus&nbsp;</em>and&nbsp;<em>S. epidermidis.</em> The results showed that sweet orange juice accelerated the color change at the SPR range of AgNPs at 438-459 nm, but it is less stable. The mix solution of sweet orange juice and sweet orange peel infusion of 1.5: 1.5 mL are stable and promising as an antibacterial agent. Futhermore, the AgNPs produced had a particle size of 41±10 nm and a spherical shape.</p&gt;}, number={1}, journal={Journal of Food and Pharmaceutical Sciences}, author={Ermawati, Dian Eka and Putro, David Sarono and Amaris Susanto, Nindita Clourisa}, year={2023}, month={Mar.}, pages={795-802} }