Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Zinc Oxide Nanoparticles Help Increasing Durability of Milk

Abstract:
Iranian researchers have studied the antibacterial effect of zinc oxide nanoparticles on various bacteria and added the nanoparticles to milk as antimicrobial agent to investigate the results.

Zinc Oxide Nanoparticles Help Increasing Durability of Milk

Tehran, Iran | Posted on December 21st, 2013

Results of this research will have applications in various medical industries, agriculture, foodstuff, water disinfection, packaging, pharmaceutics, and food production.

Nano-antibiotics are nanomaterials that in addition to having antimicrobial activity increase the effects of antibiotics. Their ability in controlling infection has been confirmed at laboratorial conditions and inside the body. Contrary to many antimicrobial agents that are currently being used in clinics, antimicrobial nanoparticles do not cause undesirable side-effects at milimolar dosage where they have antimicrobial effect.

According to Mir Hoseini, one of the researchers of the study, results showed that the antimicrobial effect of zinc oxide was higher on Gram-positive bacterium than on Gram-negative one. Zinc oxide nanoparticles are also able to stop the growth of Escherichia coli and Staphylococcus aureus in milk. However, the toxicity of nanoparticles is higher than the toxicity of the same material in larger scale, even for materials that have relatively low toxicity.

Zinc oxide nanoparticles eliminate microorganisms through various mechanisms. These oxide nanoparticles degrade the fat and protein in the bacterium cellular membrane. As a result, the cell content leaks and finally, it leads to the death of bacterium cells. In addition, the production of hydrogen peroxide and Zn+2 ions has been proposed as the key mechanism for the antibacterial effect of zinc oxide nanoparticles.

Generally speaking, it can be concluded that zinc oxide nanoparticles showed desirable antimicrobial activity against the microbes existing and being tested in milk and in the growth media.

Results of the research have been published in International Journal of Dairy Technology, vol. 66, issue 2, May 2013, pp. 291-295.

####

For more information, please click here

Copyright © Fars News Agency

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

CubeSat Structures Competition Opens Space Design to Students of the World December 16th, 2017

Record high photoconductivity for new metal-organic framework material December 15th, 2017

Error-free into the quantum computer age December 15th, 2017

Leti Will Demonstrate First 3D Anti-Crash Solution for Embedding in Drones: Fitted on a Mass-Market Microcontroller, 360Fusion Software Technology Detects any Dynamic Obstacle and Helps Guide Drones Away from Collisions December 15th, 2017

Discoveries

Quantum memory with record-breaking capacity based on laser-cooled atoms December 15th, 2017

Record high photoconductivity for new metal-organic framework material December 15th, 2017

Error-free into the quantum computer age December 15th, 2017

Synthetic protein packages its own genetic material and evolves computationally designed protein assemblies are advancing research in synthetic life and in targeted drug delivery December 15th, 2017

Announcements

CubeSat Structures Competition Opens Space Design to Students of the World December 16th, 2017

Record high photoconductivity for new metal-organic framework material December 15th, 2017

Error-free into the quantum computer age December 15th, 2017

Leti Will Demonstrate First 3D Anti-Crash Solution for Embedding in Drones: Fitted on a Mass-Market Microcontroller, 360Fusion Software Technology Detects any Dynamic Obstacle and Helps Guide Drones Away from Collisions December 15th, 2017

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Quantum memory with record-breaking capacity based on laser-cooled atoms December 15th, 2017

Record high photoconductivity for new metal-organic framework material December 15th, 2017

Error-free into the quantum computer age December 15th, 2017

Synthetic protein packages its own genetic material and evolves computationally designed protein assemblies are advancing research in synthetic life and in targeted drug delivery December 15th, 2017

Food/Agriculture/Supplements

Wheat gets boost from purified nanotubes: Rice University toxicity study shows plant growth enhanced by -- but only by -- purified nanotubes December 6th, 2017

Report highlights opportunities and risks associated with synthetic biology and bioengineering November 22nd, 2017

A new way to mix oil and water: Condensation-based method developed at MIT could create stable nanoscale emulsions November 8th, 2017

Quorum reports on how cryo prep techniques for SEM are being applied in the Laboratory of Food Technology & Engineering at the University of Ghent, Belgium November 7th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project