Journal
CURRENT OPINION IN FOOD SCIENCE
Volume 46, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cofs.2022.100863
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Developing sustainable technology for growing nutritious produce under controlled environment is an important strategy for urban agriculture. Sprouts and microgreens, rich in nutrients and with short growth cycles, are considered ideal for indoor farming. However, as immature plants, they are highly perishable and vulnerable to microbial contamination, long-distance transportation, and storage. Various cultivation substrates, such as fiber-based soil substitutes, hydroponics, and aeroponics, are being studied as alternatives to traditional soil. The advantages and disadvantages of each method are critically reviewed. The hydrogel-based soilless cultivation method is highlighted for its uniqueness in addressing food safety and sustainability challenges in growing sprouts and microgreens.
Developing sustainable technology to grow nutritious produce under controlled environment is an important strategy to practice urban agriculture. Being rich in nutrients and having a short growth cycle, sprouts and microgreens are regarded as microscale vegetables that become ideal candidates for indoor farming. But as immature plants, sprouts and microgreens are highly perishable fresh produce, particularly vulnerable to microbial contamination, long-distance transportation, and storage. Various cultivation substrates, including fiber-based soil substitutes, hydroponics, and aeroponics, are being studied as alternatives to traditional soil for growing such specialty crops. The advantages and disadvantages of each cultivation method are critically reviewed. Hydrogel-based soilless cultivation as a new and innovative practice is especially highlighted for its uniqueness to tackle food safety and sustainability challenges to grow sprouts and microgreens toward urban agriculture.
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