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,     , , ,          .  125~465 kg $10a^{-1}$   RRC 1027   .  0.42~0.82 g    Kerala Red   . DPPH             Kerala Red  .      $994{\sim}1,732mg\;kg^{-1}$   .     glutamic acid 30.5 mg $100g^{-1}$ , aspartic acid 26.1 mg $100^{-1}$ , arginine 24.3 mg $100g^{-1}$ .             glutamic acid, aspartic acid, arginine               .     DPPH         . 【Yield, growth characteristics, free radical-scavenging capacities, total phenolic contents and free amino acids contents were determined in Amaranthus species grown in Korea. And this study was aimed to investigate the functional properties of Amaranthus in two regions(Gangneung and Daegwallyeong). Yield ranged from 125 to 465 kg $10a^{-1}$ and RRC 1027 was the highest yield. Amaranthus seed size was very small, average seed weight(1,000 seeds) varied 0.42~0.82 g, especially Kerala Red was the most light weight. In DPPH (1,1-diphenyl-2-picryl hydrazyl) radical scavenging activity, there is no significantly different between growing regions but colored Kerala Red was the highest among varieties. The total amount of phenolic compounds varied from 994 to 1,732 mg/kg. Among amino acids of seeds, the contents were in order of glutamic acid(30.5 mg $100g^{-1}$ ) > aspartic acid (26.1 mg $100g^{-1}$ ) > arginine(24.3 mg $100g^{-1}$ ). The present study shows that South Korea is suitable for the cultivation of Amaranthus. Common grains lack glutamic acid, aspartic acid and arginine we need for optimal health, but Amaranthus contains these amino acids. Amaranthus is great potential to develop new crop. But for measurement of antioxidant activity, in addition to DPPH method we are looking the other way.】

korean journal of crop science/han'gug jagmul haghoeji

Comparison of Growth Characteristics, Antioxidant Activity and Total Phenolic Contents of Amaranthus Species according to the Different Cultivation Regions and Varieties in South Korea