Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

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

East China University of Science and Technology Purchases Nanonex Advanced Nanoimprint Tool NX-B200 July 30th, 2014

Watching Schrödinger's cat die (or come to life): Steering quantum evolution & using probes to conduct continuous error correction in quantum computers July 30th, 2014

From Narrow to Broad July 30th, 2014

FLAG-ERA and TNT2014 join efforts: Graphene Networking at its higher level in Barcelona: Encourage the participation in a joint transnational call July 30th, 2014

Discoveries

New imaging agent provides better picture of the gut July 30th, 2014

Watching Schrödinger's cat die (or come to life): Steering quantum evolution & using probes to conduct continuous error correction in quantum computers July 30th, 2014

From Narrow to Broad July 30th, 2014

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

Announcements

University of Manchester selects Anasys AFM-IR for coatings and corrosion research July 30th, 2014

Nature inspires a greener way to make colorful plastics July 30th, 2014

Analytical solutions from Malvern Instruments support University of Wisconsin-Milwaukee researchers in understanding environmental effects of nanomaterials July 30th, 2014

FEI Unveils New Solutions for Faster Time-to-Analysis in Metals Research July 30th, 2014

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

Watching Schrödinger's cat die (or come to life): Steering quantum evolution & using probes to conduct continuous error correction in quantum computers July 30th, 2014

From Narrow to Broad July 30th, 2014

Nature inspires a greener way to make colorful plastics July 30th, 2014

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

Food/Agriculture/Supplements

Iranian Scientists Produce Reusable Nanoadsorbent to Detect Sulfamide in Chicken July 27th, 2014

Key Announcements made at TAPPI International Nanotechnology Conference July 7th, 2014

Squid sucker ring teeth material could aid reconstructive surgery, serve as eco-packaging July 2nd, 2014

FDA issues guidance on use of nanotechnology in foods July 1st, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE