Abstract: Spinach, coriander and celery are favored by the masses as nutritious green leafy vegetables. Taking the above three kinds of green leafy vegetables as examples, the working principle, technical characteristics, research status and development trend of green leaf vegetable drying industry were introduced, aiming at providing reference for the development of green leaf vegetable drying industry.
Key words: green leafy vegetables; microwave drying equipment; research status
Green leafy vegetables are a kind of common fast-growing vegetables. There are more than 10 families of green leafy vegetables cultivated in China, more than 30 species, various kinds, rich in nutrients, rich in vitamins, β-carotene, minerals and dietary fiber. It can promote gastrointestinal motility and prevent osteoporosis and diseases such as hypertension, coronary heart disease and diabetes.
Chinese nutritionists point out that the daily intake of vegetables per person should be (400~500)g, of which more than 200g should be green leafy vegetables. Green leafy vegetables are essential for humans. However, green leafy vegetables are not resistant to storage after harvesting, and the nitrates in green leafy vegetables that have been stored for a long time are converted into nitrite.
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