Soilless cultivation systems to produce tailored microgreens for specific nutritional needs

Author:

D'Imperio Massimiliano1ORCID,Bonelli Lucia1,Mininni Carlo2,Renna Massimiliano3,Montesano Francesco Fabiano4,Parente Angelo1,Serio Francesco1

Affiliation:

1. Institute of Sciences of Food Production, CNR – National Research Council of Italy Bari Italy

2. Ortogourmet Società Agricola Srl Laterza Italy

3. Department of Agricultural and Environmental Science University of Bari Aldo Moro Bari Italy

4. Department of Soil, Plant and Food Sciences University of Bari Aldo Moro Bari Italy

Abstract

AbstractBACKGROUNDThe awareness of the importance of following dietary recommendations that meet specific biological requirements related to an individual's health status has significantly increased interest in personalized nutrition. The aim of this research was to test agronomic protocols based on soilless cultivation for providing consumers with new dietary sources of iodine (I), as well as alternative vegetable products to limit dietary potassium (K) intake; proposed cultivation techniques were evaluated according to their suitability to obtain such products without compromising agronomic performance.RESULTSTwo independent experiments, focused on I and K respectively, were conducted in a commercial greenhouse specializing in soilless production. Four different species were cultivated using three distinct concentrations of I (0, 1.5 and 3 mg L−1) and K (0, 60 and 120 mg L−1). Microgreens grown in I‐rich nutrient solution accumulate more I, and the increase is dose‐dependent. Compared to unbiofortified microgreens, the treatments with 1.5 and 3 mg L−1 of I resulted in 4.5 and 14 times higher I levels, respectively. Swiss chard has the highest levels of K (14 096 mg kg−1 of FW), followed by rocket, pea and radish. In radish, rocket and Swiss chard, a total reduction of K content in the nutrient solution (0 mg L−1) resulted in an average reduction of 45% in K content.CONCLUSIONIt is possible to produce I‐biofortified microgreens to address I deficiency, and K‐reduced microgreens for chronic kidney disease‐affected people. Species selection is crucial to customize nutritional profiles according to specific dietary requirements due to substantial mineral content variations across different species. © 2023 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Publisher

Wiley

Subject

Nutrition and Dietetics,Agronomy and Crop Science,Food Science,Biotechnology

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