Duckweeds contain 20–35% protein, 4–7% fat, 4–10% starch per dry weight.
Proteins constitute 4.8% Lys, 2.7% Met + Cys, and 7.7% Phe + Tyr.
48–71% of fat are polyunsaturated fatty acids, the n6/n3 ratio is 0.5 or less.
Mineral content can be easily manipulated by the composition of the nutrient medium.
Wolffia microscopica and Wolffiella hyalina are desirable as human food.
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