Breaking News on Food and Beverage Processing and PackagingWorldUSEurope

News in brief

Scientists develop sensitive BPA detection method

By Rod Addy , 16-Jan-2013

Scientists have developed a highly sensitive method of detecting the food contact material bisphenol-A (BPA) in food and water.

The technique is based on synthesis of a poly-L-lysine (PLL)-hapten conjugate as a coating antigen and was published online for the journal Analytical Methods.

The performance of the PLL–4,4-bis(4-hydroxyphenol) valeric acid (BVA) conjugate in the immunoassay was studied. The established method showed that the PLL–BVA coated format could improve the sensitivity of indirect competitive enzyme-linked immunosorbent assay (icELISA) tests.

The limit of detection was 0.5 nanograms per millilitre and the reliability of the ELISA test was verified using high-performance liquid chromatography.

“These data demonstrated that the established ic-ELISA is a potential technique for detection of BPA,” the researchers concluded.

BPA is used to coat packaging such as aluminium cans and some studies describe it as a risk factor in the development of ailments ranging from cancer to obesity.

Source: Analytical Methods 2013, first published online January 14, 'An indirect competitive enzyme-linked immunosorbent assay for bisphenol-A based on the synthesis of a poly-L-lysine-hapten conjugate as a coating antigen'. Authors: Jianging Zhou, Suging Zhao, Jun Zhang, Yanfei Cai and Lihua Zhou.

Related products

Key Industry Events


Access all events listing

Our events, Events from partners...

On demand Supplier Webinars

High Pressure Processing for Beverages
Avure Technologies
Bottling solution for Liquid dairy products
GEA Process Engineering Inc.
All supplier webinars