Lamp on bioluminescent bacteria. Free Technical Library News

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Lamp on bioluminescent bacteria

26.01.2015

In nature, bioluminescent bacteria are found on the tentacles of a certain species of octopus, allowing it to glow in the dark: when exposed to oxygen, these microorganisms emit a soft blue light.

Dutch designer Teresa van Dongen designed the Ambio lamp as part of her graduation project at the Eindohven Design Academy, and students from the Delft University of Technology (Netherlands) helped her find the right bacteria.

The lamp is a transparent tube with artificial sea water, in which photobacteria were placed, and in order for it to glow, Amibo must be set in motion, for which a simple pendulum mechanism had to be built. While the bacteria in the lamp can only live for a few days, Teresa is working with biologists to extend the life of the lamp and increase the brightness of the light.

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Israeli food technology company Supree has developed a unique tomato variety whose skin has microscopic cracks. As the fruit ripens, these cracks widen, allowing moisture to naturally evaporate from the fruit. In this way, tomatoes can be dried directly on the plant, without requiring additional processing, such as slicing and pickling, which is common with traditional varieties.

When a new tomato variety is dried, it loses about 80% of its original weight, allowing flavor, antioxidants and other nutrients to be concentrated in the remaining 20%.

These tomatoes can also be dried, frozen and stored for up to a year without adding preservatives, still retaining their taste, texture and nutritional value.

Supree currently focuses on supplying tomatoes directly to corporate clients in the food industry. The company is also working on a mechanized harvesting system that should reduce the cost of tomatoes and could also be adapted for other types of self-drying crops such as bell peppers.

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