Novel tech could be used to wash produce, finds study

“Streams of water carrying sound and microscopic air bubbles can remove microbial contaminants from spinach leaves, according to a study.

Scientists used acoustic water streams to clean spinach leaves sourced from a field crop, then compared results with leaves rinsed in plain water at the same velocity.

Salad and leafy green vegetables may be contaminated with bacteria during growing, harvesting, preparation and retail, leading to foodborne outbreaks that may be fatal. There is no cooking process to reduce the microbial load in fresh salads and other fresh produce dishes so washing by the supplier and consumer is vital.

Washing with soap, detergent, bleach or other disinfectants is not recommended and the crevices in the leaf surfaces mean washing with water may leave behind an infectious dose. Chemicals may also not penetrate the crevices.

Results, published in the journal Ultrasound in Medicine and Biology, showed the microbial load on samples cleaned with ultrasonically activated stream (UAS) for two minutes was significantly lower on day six after cleaning than on those treated without ultrasound.

Cleaning for two minutes also did not produce significant surface damage, which can affect overall leaf quality, according to the research.”

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Published by RenSun Lee

Kia ora! Sustainability is at the core of my soul ever since I was a kid. I always strive to finish the food on my plate and live as a minimalist. I love to cut down on waste in order to live sustainably and harmoniously with our planet. This brings me to my passion as a Food Scientist to integrate new technologies into innovative and creative solutions to meet customer demands and market trends and to optimize products and processes for quality, savings and sustainability. To these goals, I have published a Journal on my work on sustainable packaging and patented a new Antimicrobial wash. Nothing is more satisfying than working hard and smart at the workplace and playing hard outside of working hours. I enjoy rejuvenating myself through spending quality time with my two adorable kids and my awesome soul mate and getting close to nature when possible, be it gardening, tramping or going to the beach. I also love to learn about our magnificent universe and how sustainability is working in the grand scheme of things. I strongly believe that Work, Life & Balance is the key to a healthy state of mind, both physically and mentally. I look forward to making a positive difference wherever and whenever I can. Through this Blog, I hope to catalog recent Food Trends and Food Technologies that I come across so that anyone who is interested can have access to it (articles and resources). Please use these resources at your discretion. On top of that, I would also like to share related news and technologies of the future that would help mankind advance towards a Type 1 Civilization. Please feel free to contact me if you would like to share and contribute to the “Resources“. I would like to thank you in advance for dropping by. I sincerely hope that you can benefit from the recent Food Trends and Food Technologies I catalogued. Kind regards | Ngā mihi RenSun Lee

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