MOCON is making major changes to its ground-breaking GreenLight® rapid microbial detection system.

The innovative oxygen sensor vials used with the GreenLight system now feature a 50% shelf life increase and a broader storage temperature range.

The APCheck™ vials now offer an 18-month shelf life at storage temperatures ranging from 4 to 40°C. The significance to quality control professionals is that the testing vials will be usable for a longer period of time without investment in costly refrigeration equipment necessary with other methodologies.

Additionally, quality control professionals can now store sensors close to the lab operators or even out in the field without the need for controlled environments.

“The APCheck vials were always a rugged and easy-to-use option,” said Alan Traylor, business manager for MOCON’s microbial detection group. “But now we have effectively eliminated the drawbacks of conventional microbial test kits—cool storage requirements and short shelf-life.”

The innovative sensor vials work with GreenLight to measure changes in oxygen content in a microbial sample. This information can be converted to a presence/absence result or an enumeration of microbial load in colony forming units per gram (CFU/g). GreenLight can provide results at very low bacterial loads in less than 24-hours. This compares to the time span of 48 to 72-hours required by the traditional, agar-based, standard plate count method.

Additional benefits are realised in the quality-control lab because the internal incubator enables lower power usage and lab waste is reduced due to the compact test vial.

The GreenLight rapid microbial detection system is currently being used in a wide range of applications including food, beverage, pharmaceutical and industrial products.