抹茶の化学成分
1984 年 1984 巻 60 号 p. 79-81
詳細
1984 年 1984 巻 60 号 p. 79-81
Chemical compositions of various grades of Mat-cha (5000, 4000, 3000, 2000, and 1000 yen/40g) were determined.
Contents of total nitrogen, caffeine and free amino acids and an amide (theanine) were decre ased with decreasing the price of Mat-cha.
Vitamine C contents of these were lower than that of Sen-cha, and Vitanine C contents of high grade Mat-cha (>3000 yen/40g) were higher than those of low grade Mat-cha (<2000 yen/40g).
Contens of free reducing suggar and vitamine E were not different amang Mat-chas.
Free arginine, asparatic acid, glutamic acid, threonine and theanine (amide) in Mat-cha were decreased with decreasing the price of Mat-cha.
