The Amino Acid Content and Antioxidant Activities of Glasswort (Salicornia herbacea L.)

Abstract

We collected glasswort (Salicornia herbacea L.) from the Jollanam-do area (Hwangsan-myeon in Haenam, Jeungdo-myeon in Sinan, and Yeomsan-myeon in Yeonggwang) from June to October 2007, and analyzed levels of total amino acids, free amino acids, and total polyphenolic compounds and electron donating ability and SOD-like activity. The total amino acid content was /100 g in the sample from Haenam, /100 g in the sample from Sinan, and /100 g in the sample from Yeonggwang. Proline was the main free amino acid from June through to September, and the level increased during June, the early period of maturation, and then decreased with further ripening. The total content of free amino acids was /100 g in the sample from Haenam, /100 g in the sample from Sinan, and /100 g in the sample from Yeonggwan. Total polyphenolic compound level was in the sample from Haenam, in the sample from Sinan, and in the sample from Yeonggwang. Electron donating ability was 53.8.70.9% in the sample from Haenam, in the sample from Sinan, and in the sample from Yeonggwang. SOD-like activity was in the sample from Haenam, 28.5{\sim}36.5% in the sample from Sinan, and 23.5.39.6% in the sample from Yeonggwang.