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Persister bacteria travel an alternate path to antibiotic resistance

A persister bacterium is different from antibiotic-resistant bacteria. While most antibiotic-resistant bacteria have acquired genetic mutations that directly protect them against antibiotics, persisters do not possess such mutations. They have a better chance of survival than resistant mutants, because of certain genes they switch on or off before, during or after antibiotic therapy. It seems that the line between the antibiotic-resistant bacteria and persister bacteria is not as clear as scientists previously thought.  The researchers found that some persisters were more likely than standard bacteria to produce offspring with the direct, genetic-mutation resistance to antibiotics. The researchers found the persisters’...

ruth

The Food Waste Problem and How to Reduce It

USDA showed that Americans waste is around one pound of food/person each day. Therefore, Americans waste 150,000 tons of food daily.  People who eat a healthier diet that is rich in fruit and vegetables are the most wasteful.  Fruit and vegetables require less land to grow than other foods but require a larger amount of water and pesticides. Fruits and vegetables were most likely to be thrown out and accounted for 39% of the food waste. The next most common category was dairy (17%), then meat and meat dishes (14%). A report found that just 4 of the 10 largest...

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Novel Technologies Impacting Food Safety

Several exciting new technologies are combining to help improve food safety. They include digitalized tracing of the foods from farm to the supermarket (e.g. using blockchain), the combination of “smart” sensors transmitting their data into the Internet-of-Things (IoT), utilization of artificial intelligence, and smart packaging. The immense amount of data generated by these technologies can reside in the cloud. While most of these technologies are in their infancy, significant strides are made to make them a reality. All have the potential to be game changers. However, most are still in their infancy. As a result, their adaptation curve is very...

qynotam@getnada.com

How to assure safer leafy greens, the role of water testing and why traceability is not sufficient
According to the NY Times, the FDA is worried about a repeat of romaine lettuce outbreak this year. The FDA strongly encourages the entire leafy greens supply chain to adopt state-of-the-art technology for traceability in order to assure quick, accurate and easy access to the whole supply chain and to enable  tracing back the products to their original farms. An important element of stopping an outbreak is the ability to identify specific farms or ranches and dates of harvest for products that contribute to outbreaks if product has been commingled.        It is important to be able to determine which farm(s) and growing region(s)...