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Discover the Trick to Keeping Carrot Slices Straight!

ScienceDiscover the Trick to Keeping Carrot Slices Straight!
Have you ever noticed how carrot slices tend to curl after being left uneaten for too long? Scientists at the University of Bath have uncovered the reason behind this peculiar phenomenon. They have found that when a carrot is cut lengthwise and left exposed to air for an extended period, it begins to lose moisture. As a result, the outer layer, known as the cortex, dries out faster than the center, causing the carrot to bend outwards.

Protecting Carrots for Longevity

The team of researchers discovered that handling carrots in a cold, moist, and airtight environment can help protect their natural properties and increase their edible lifespan. Dr. Elise Pegg, a senior lecturer in the University of Bath’s Department of Mechanical Engineering, explained that mathematically representing the curl of a cut carrot over time and understanding the contributing factors was the motivation behind their study. This knowledge could provide food producers with a new tool to reduce not only carrot wastage but also that of other root vegetables.

Insights from Mathematical Modeling

During the study, mechanical engineering student Nguyen Vo-Bui utilized mathematical models from structural engineering to analyze over a hundred Lancashire Nantes carrot halves. Over the course of a week, the researchers observed that the carrot halves continued to curl outwards, with the average radius of each carrot’s curvature decreasing from 1.61m to 1.1m. Additionally, the weight of the carrots decreased by 22% during this period.

Challenges and Sustainable Solutions

The research, undertaken during the lockdown, presented its own set of challenges. Devising an experiment that could be conducted in a limited setting without access to standard labs and equipment was no easy feat. Nevertheless, the team persevered and successfully uncovered valuable insights that could positively impact the sustainability of carrot processing.
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Reducing Food Waste and Enhancing Efficiency

The findings of the study offer a promising methodology for food producers to adapt their processes, thereby reducing food waste and improving the efficiency of packaging and transportation. It is estimated that approximately 25-30% of carrots are wasted before being processed or packaged due to deformities, mechanical damage, or infected sections. Dr. Pegg emphasized the potential for the methodology to bring about significant positive changes in the industry.

Utilizing Every Bit of the Carrots

Once the experiments were concluded, the carrots were not discarded. Instead, they were put to good use in various culinary creations such as carrot cake, the Indian carrot dessert Gajar Ka Halwa, and carrot pesto. This approach aligns with the ethos of minimizing waste and making the most of available resources. In conclusion, the study conducted by the University of Bath sheds light on the science behind the curling of cut carrot slices. The insights gained have the potential to revolutionize the way carrots and other root vegetables are handled, processed, and preserved. By leveraging the knowledge gleaned from this research, the food industry can work towards reducing food waste, enhancing efficiency, and promoting sustainability.
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