Is that meat still good? Are you sure? McMaster researchers have developed a test to bring certainty to the delicate but critical question of whether meat and other foods are safe to eat or need to be thrown out.
Mechanical and chemical engineers at McMaster, working closely with biochemists from across campus, have collaborated to develop a transparent test patch, printed with harmless molecules, that can signal contamination as it happens. The patch can be incorporated directly into food packaging, where it can monitor the contents for harmful pathogens such as E. coli and Salmonella.
The new technology, described today in the research journal ACS Nano, has the potential to replace the traditional “best before” date on food and drinks alike with a definitive indication that it’s time to chuck that roast or pour out that milk.
“In the future, if you go to a store and you want to be sure the meat you’re buying is safe at any point before you use it, you’ll have a much more reliable way than the expiration date,” says lead author Hanie Yousefi, a graduate student and research assistant in McMaster’s Faculty of Engineering.
If a pathogen is present in the food or drink inside the package, it would trigger a signal in the packaging that could be read by a smartphone or other simple device. The test itself does not affect the contents of the package.
According to the World Health Organization, foodborne pathogens result in approximately 600 million illnesses and 420,000 deaths per year. About 30 per cent of those cases involve children five years old and younger.
The researchers are naming the new material “Sentinel Wrap” in tribute to the McMaster-based Sentinel Bioactive Paper Network, an interdisciplinary research network that worked on paper-based detection systems. That network’s research ultimately gave rise to the new food-testing technology.
Chemical engineer Carlos Filipe and mechanical-biomedical engineer Tohid Didar, collaborated closely on the new detection project.
The signaling technology for the food test was developed in the McMaster labs of biochemist Yingfu Li.
“He created the key, and we have built a lock and a door to go with it,” says Filipe, who is Chair of McMaster’s Department of Chemical Engineering.
Mass producing such a patch would be fairly cheap and simple, the researchers say, as the DNA molecules that detect food pathogens can be printed onto the test material.
“A food manufacturer could easily incorporate this into its production process,” says Didar, an assistant professor of mechanical engineering and member of the McMaster Institute for Infectious Disease Research.
Getting the invention to market would need a commercial partner and regulatory approvals, the researchers say. They point out that the same technology could also be used in other applications, such as bandages to indicate if wounds are infected, or for wrapping surgical instruments to assure they are sterile.
The Latest on: Food spoilage detection
via Google News
The Latest on: Food spoilage detection
- Best Vacuum Sealeron February 24, 2020 at 2:47 pm
Its multi-layer material is designed to reduce food spoilage and waste, which should help you stretch your budget and eat ... Nevertheless, it’s quite handy in the kitchen as it comes with an ...
- Experts reveal which foods to 'sniff test' and ignore 'use by' dates for WEEKSon February 24, 2020 at 2:26 pm
The sniff test alone may not be entirely reliable though, he adds, as the smell of 'bad' food is usually caused by harmless 'spoilage' Pseudomonas bacteria that don't make you ... CLAIM: A mini ...
- Trucking braces for impact of new food safety lawon February 16, 2020 at 4:00 pm
Food spoilage in transit is also “a huge issue ... tampering, explosive detection, contamination detection, pre-notification for port authorities, while providing e-mail or cell phone ...
- Forget the ‘Best By’ Date; This Compostable Bioplastic Packaging Changes Color When the Food Goes Badon February 16, 2020 at 2:55 pm
But what if the packaging containing a fresh food product could detect and warn you when spoilage occurs? An intrepid nonprofit based out of San Francisco is currently developing such packaging that ...
- Carbon Dioxide Sensor(CO2): Product Scope and Market Estimation 2019-2026on February 6, 2020 at 4:00 pm
These sensors have varied applications like measurement of CO2 emission from the automobile exhaust system, air quality measurement, and food spoilage detection. The increased emission of carbon ...
- Naresh Shanker Has 100 Year Old Xerox Thinking Like A Startupon February 2, 2020 at 4:00 pm
You are going to hear more about the technology in the sensor space, predominantly around what we have done, which is the detection of hazardous gases and food and drug spoilage. Further ...
- How sensors and big data can help cut food wastageon January 28, 2020 at 5:56 am
We used computer intelligence methods to detect defects and predict the quality ... This is wasteful. Some decay and spoilage is caused by viruses, fungi, bacteria or microbial pathogens.
- Create a Strawberry Delivery Management monitoring IoT prototype project in 15 mins or lesson January 27, 2020 at 7:16 pm
Internet-of-Things (IoT) is used in different scenarios. In this article, you can use IoT in monitoring the delivery of strawberries from the farm to its market destination. The main goal of this ...
- Smart refrigerators and their surging popularity in smart kitchenson January 21, 2020 at 4:29 am
smart refrigerator companies are approaching with a felicitous solution to detect food spoilage in the fridge using sensors and cameras. For instance, Amazon has secured a long-awaited patent for ...
via Bing News