IL-IA Local Section of the American Chemical Society


The IL-IA ACS Local Section is a professional organization of chemists in Eastern Iowa and Western Illinois. We are the local branch of the national ACS, which is the world's largest scientific society and one of the world's leading sources of authoritative scientific information.


OMg!: Elements of Surprise at the Putnam Museum

The Putnam Museum & Science Center in Davenport has a new exhibit showcasing the periodic table! The section is providing a pass so that members can visit the Museum. Please contact Jennifer Schmidt-McCormack for details.

Recent Events

Virtual Seminar - Best Queso Scenario

Professor Max Holle from Monmouth College will be giving a seminar on the microbiology and food safety of fresh, Hispanic-style, cheese at 7 pm on April 27th.


Listeria monocytogenes is an opportunistic and zero-tolerance foodborne pathogen that causes listeriosis, a rare illness but with a high fatality rate. Listeriosis outbreaks have often been linked to the consumption of Hispanic-style cheeses (HSC), accounting for 17% of total outbreaks in the U.S. in the past ten years. In particular, Queso Fresco (QF), the most common HSC in the U.S., is characterized by a near neutral pH, high fat (>20%) and low salt (<3%) content, and a short shelf-life requiring refrigeration. In addition, QF is known to support the growth of L. monocytogenes. The development of a miniaturize laboratory-scale queso fresco that accurately replicates the composition of commercial QF has allowed for the incorporation and testing of novel antimicrobials. Endolysins, a class of lytic enzymes derived from bacteriophages, have shown promising results at controlling pathogen contamination in QF. Characterization of these endolysins has shown that PlyP100, the endolysin from GRAS phage P100, is currently the best endolysin for combatting pathogen contamination in QF.