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Trendy microgreens could help feed the world

by Staff Reporter
6th Oct 2021
in Grow It, Trending
Reading Time: 4 mins read
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Trendy microgreens could help feed the world

With a short growth cycle requiring only minimal inputs of fertiliser, microgreens have great potential to provide essential nutrients and antioxidants, even to people living in food deserts. Photo: Supplied/Health For Mzansi

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Microgreens can help to provide global nutrition security, according to a study. The tiny plants have gained popularity among consumers for their nutritional profile and high content of antioxidant compounds. And consumers could produce microgreens at home using simple tools available in a kitchen.

The current Covid-19 pandemic revealed the vulnerability of our food systems, and the need to address nutrition security.

Microgreens research: Assistant Professor of Vegetable Crop Science, Prof Francesco Di Gioia. Photo: Supplied/Health For Mzansi
Assistant professor of vegetable crop science Prof. Francesco di Gioia. Photo: Supplied/Health For Mzansi

Microgreens started decades ago as fashionable, high-value gourmet greens, but a new study suggests they have the potential to help provide global nutrition security.

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The tiny plants have gained popularity among consumers for their nutritional profile and high content of antioxidant compounds.

As part of a project titled “Food Resilience in the Face of Catastrophic Global Events” researchers have found that these vegetables can be grown in a variety of soilless production systems in small spaces indoors, with or without artificial lighting. The findings are especially relevant amid a pandemic that has disrupted food supply chains.

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With microgreens, people can produce fresh and nutritious vegetables even in areas that are considered food deserts, says team leader Francesco di Gioia, assistant professor of vegetable crop science in the College of Agricultural Sciences at Penn State University in the United States.

“The current Covid-19 pandemic revealed the vulnerability of our food system and the need to address malnutrition issues and nutrition-security inequality, which could be exacerbated by potential future emergencies or catastrophes,” he says.

“Nutrient-dense microgreens have great potential as an efficient food-resilience resource.”

Grow your own

Microgreens’ nutritional profile is associated with the rich variety of colors, shapes, textural properties and flavours obtained from sprouting a multitude of edible vegetable species, including herbs, herbaceous crops and wild edible species.

With a short growth cycle requiring only minimal inputs of fertiliser, microgreens have great potential to provide essential nutrients and antioxidants, Di Gioia notes.

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Using simple agronomic techniques, it is possible to produce microvegetables that could address specific dietary needs or micronutrient deficiencies, as well as nutrition-security issues in emergency situations or in challenging environmental conditions.

Consumers could produce microgreens at home using simple tools available in a kitchen, Di Gioia points out. A grower would also need seeds, growing trays and a growth medium—which could consist of a common peat or peat and perlite growth mix.

Consumers could produce microgreens at home using simple tools available in a kitchen. Photo: Supplied/Health For Mzansi
Consumers could produce microgreens at home using simple tools available in a kitchen. Photo: Supplied/Health For Mzansi

Microgreens in space

Given all the characteristics of microgreens, scientists at NASA and the European Space Agency also have proposed them as a source of fresh food and essential nutrients for astronauts engaged in long-term space missions.

And because microgreens may be used as functional food to enhance nutrition security under current conditions and during future emergencies or catastrophes, Di Gioia suggests that microgreen production kits including seeds could be prepared and stored, then made available when needed.

“Under such circumstances, a variety of fresh and nutrient-rich microgreens could be grown, providing a source of minerals, vitamins and antioxidants in a relatively short time,” he says. “Or alternatively, kits could be distributed to vulnerable segments of the population as a short-term nutrition-security resource.”

Check the menu of a fine-dining restaurant or the produce section of a speciality grocery store, and you’re likely to find some microgreens: tiny, delicate greens that add colour, texture and flavour to a variety of foods, both as a garnish or as an ingredient. Photo: Supplied/Health For Mzansi

Di Gioia presented the research, which appears in Acta Horticulturae, virtually during the International Symposium on Soilless Culture and Hydroponics.

Additional researchers are from the University of Thessaly, Magnissia, Greece; Instituto Politécnico de Bragança, Centro de Investigaçã o de Montanha, Campus de Santa Apolónia, Bragança, Portugal; and the Horticultural Research Laboratory at the US Department of Agriculture’s Agriculture Research Service.

Open Philanthropy and the US department of agriculture’s National Institute of Food and Agriculture supported the work.

This article was first published by the World Economic Forum.

ALSO READ: How to get your edible garden up and running

Tags: Covid-19food medicinehealthhealthy lifestylenatural medicineNutrition
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