Contents of Free amino acids, Free sugars, Free alcohols and Organic acids in selected Amaranthus Cultivars

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Contents of free amino acids, free sugars, free alcohols, and organic acids wereidentified in 12 species of Amaranthus vegetables and Amaranthus grains.Analyses of 100g of amaranthus dry powder showed the following mean±S.D.contents. 1) A.vegetables have 18 kinds of free amino acids of protein type and 7 kinds of freeamino acids of non-protein type.A.grains have 20 kinds of free amino acids of proteintype and 45 kinds of free amino acids of non-protein type. 2) The amount of total free amino acids was 1, 243.5±195.4mg (A.vegetables) and 374.5±84.9mg (A.grains).Ninety percent of both were free amino acids of protein type. 3) The main free amino acids were alanine, glutamic acid, aspartic acid, serine, glutamine, proline, and asparagine. 4) The amount of γ-aminobutyric acid was more than that of any other free aminoacids of non-protein type.It was 80.1±75.5mg (A.vegetables) and 22.6±8.2mg (A.grains). 5) The amount of total free sugars was 3, 175±1, 098mg (A.vegetables) and 6, 204±3, 474mg (A.grains).A.vegetablescontainglucose1, 000±453mg, fructose329±75mg, and sucrose 1, 846±1, 086mg.A.grains contain glucose 2, 170±959mg, fructose299±173mg, and sucrose 3, 735±2, 842mg.The amounts of free alcohols were as follows: A.vegetables contain glycerol 77±16mg and A. grains contain sorbitol 144±80mgand glycerol 179±60mg. 6) The amount of oxalic acid was 489±211mg (A. vegetables) and 702±254mg (A. grains).
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