I have written before about how I make leaf mold in my garden. But today, I thought it would be useful to share how I use the leaf mold that I make since I have been asked about this a few times recently. I know that many are interested in making leaf mold but don't fully understand how it can be used.
Duckweed is an incredible, radiation-fighting astronaut food – and by changing how it is grown, we made it better
21.08.2023 - 11:43 / theunconventionalgardener.com / guest
Header image: The tiny floating duckweed plant is uniquely suited to meet the nutritional needs of astronauts. Dr. Jared J. Stewart, CC BY-ND
Word by Barbara Demmig-Adams, University of Colorado Boulder
The Research Brief is a short take about interesting academic work.
Current industrialized food systems were optimized for a single goal – growing the maximum amount of food for the least amount of money. But when room and supplies are limited – like during space travel – you need to optimize for a different set of goals to meet the needs of the people you are trying to feed.
NASA and the Translational Research Institute for Space Health asked my lab to figure out how to grow an edible plant for long-term space missions where fresh, nutritious food must be produced in tight quarters and with limited resources. To do this, we turned to a plant called duckweed.
Duckweed is a small floating plant that grows on the surface of ponds. It is commonly eaten in Asia but is mostly considered a pest plant in the U.S. as it can quickly take over ponds. But duckweed is a remarkable plant. It is one of the fastest-growing plants on Earth, is the most protein–dense plant on the planet and also produces an abundance of important micronutrients. Two of these micronutrients are the inflammation-fighting antioxidants zeaxanthin and lutein. Zeaxanthin is the more potent of the two, but is hard to get from most leafy greens since fast-growing plants accumulate zeaxanthin only under extremely bright lights.
I proposed to the Translational Research Institute for Space Health that in addition to maximizing nutritional, space and resource efficiency, we also try to optimize the production of these antioxidants.
With just a little bit of
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