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[이데일리 김영환 기자] Seoul Semiconductor (046890), a global optical semiconductor company, confirmed experimental results showing that when cultivating plants with natural light, it can promote stable growth and increase in effective nutrient content like plants grown in nature. Nutrient analyzer in its own bio (BIO) laboratory ( Above) and human cell reaction tester (below), Seoul Semiconductor experimental farm testing plant growth and nutrients according to lighting (Photo = Seoul Semiconductor) Seoul Semiconductor said that when lettuce was grown using natural SunLike LED lighting, It was announced on the 18th that experimental results showed that lettuce yield increased compared to white LED lighting. Antioxidants chlorogenic acid and chicoric acid, which are important nutrients, increased by more than 30%.

This comparative experiment was conducted by installing lights equipped with regular white LEDs of the same brightness and Sunlike LEDs similar to the natural light spectrum, and then comparing the yield of lettuce and the content of antioxidants chlorogenic acid and chicoric acid for two weeks. done. Chlorogenic acid and chicoric acid remove oxygen radicals in the human body, inhibit aging and inflammation, and prevent diseases such as aging, vision loss, Alzheimer’s, and arthritis.

General white LED and Sunlike LED plant growth experiment graph (Photo = Seoul Semiconductor) In this experiment, the yield of lettuce grown under Sunlike LED lighting increased slightly by 4% compared to general white LED lighting, and the antioxidant substances chlorogenic acid and chicoric acid each increased. An increase of 55% and 31% was confirmed. The result is that the closer to natural light is used, the more nutrient content in plants can be increased.

Seoul Semiconductor has been operating its own plant cultivation experiment farm for the past 10 years. We are researching the growth and nutrient changes of various plants and nuts according to various light sources, and are even measuring nutrients ourselves and conducting experiments on the effects of nutrients on cells.

[이데일리 강민구 기자] Although it is difficult for us to go to space ourselves, we have an opportunity to send something to distant space on a probe worthy of its name.

The National Aeronautics and Space Administration (NASA) announced that it is accepting applications from people who will engrave their names on a microchip on the Jupiter satellite probe Europa Clipper until the 31st of this month (US Eastern time) for the ‘Message in a Bottle’ event. Participation fee is free. You can also download an image file with your English name in a bottle by simply entering your name, email, country, and zip code on the NASA website.

NASA plans to launch a probe called Europa Clipper in October next year to explore Jupiter’s moon Europa. If the launch is successful, the probe will enter orbit near Jupiter by 2030 and then fly the satellite dozens of times over the years to see whether the environment is suitable for life.

It is reported that more than 1 million participants have applied for this event so far, and NASA’s Jet Propulsion Laboratory plans to engrave their names on a coin-sized microchip once applications close. Each line of the name is less than one thousandth the width of a human hair.

NASA plans to engrave American poet Ada Limon’s tribute to Europa on the probe, seal it with a microchip, and send it on board the probe.

The reason for holding these events is to inform the public of the need for space exploration, which costs a lot of money and requires public support. In particular, this event can be seen as an attempt to integrate art and science in that it combines a tribute to Europa, a space probe, and sending a name.

Previously, NASA held an event to send applicants’ names to the launch of Artemis 1, starting with the ‘Send Names to Mars’ event in 2019. In Korea, there is a case where the Korea Astronomy and Space Science Institute held an event to engrave the applicant’s name on the nanosatellite ‘SNIPE’. To name the domestic rocket, the Korea Aerospace Research Institute held a name contest and named it ‘Nuriho.’

Results of participation in the Jupiter Satellite Exploration ‘Message in a Bottle’ event. The destination, takeoff date, and destination arrival date are listed. (Data = NASA website)