The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2019
Filed:
Jun. 07, 2018
King Saud University, Riyadh, SA;
Hatem Salama Mohamed Ali, Cairo, EG;
Reem Atta Alajmi, Riyadh, SA;
Hany Mohamed Yehia, Riyadh, SA;
Mohamed Fekry Serag El-Din, Shebin El-Kom, EG;
Manal Fawzy Elkhadragy, Cairo, EG;
Manal Ahmed Gasmelseed Awad, Riyadh, SA;
Dina Mahmoud Metwally Hasanin, Zagzig, EG;
King Saud University, Riyadh, SA;
Abstract
The guava seed () nanoparticles as an antibacterial agent are prepared from guava seeds that have been washed, dried, and ground to powder of less than 1 mm diameter. The powder is reduced to nanoparticle size (less than 100 nm diameter) by adding the powder to a solution of concentrated hydrochloric acid (38% w/w) and stirring the mixture at 3000 rpm at room temperature. The resulting nanoparticles are filtered through a Millipore membrane filter and dried. Agar well diffusion studies showed significant antibacterial activity against various Gram positive and negative species commonly implicated in food contamination. Further testing showed the guava seed nanoparticles have significant antioxidant and radical scavenging content, suggesting that guava seed nanoparticles may serve as an antibacterial agent.