| abstract |
Young leaves of a grass plant selected from the group consistingnof barley, wheat, rye, oats, adlay, Italian ryegrass, and rice,nhaving γ -aminobutyric acid, known as an antihypertensivensubstance, in which the amount of γ -aminobutyric acid is enrichednor retained, are provided. The content of γ -aminobutyric acid innthe young leaves is 500 mg/100 g or more in terms of dry weight.nYoung leaf powder, young leaf juice, and young leaf juice powdernof the grass plant having γ -aminobutyric acid in large amounts arenalso provided. |