초록

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Abstract ▼ AI-Helper

Chemical composition was determined to evaluate the quality of traditional Ewhaju during brewing. The content of moisture, total sugar, reducing sugar, crude protein and crude ash of Ewhaju after the lapse of 20 days from brewing were 47.01%, 47.57%, 29.45%, 4.81% and 0.09%, respectively and free su...

Chemical composition was determined to evaluate the quality of traditional Ewhaju during brewing. The content of moisture, total sugar, reducing sugar, crude protein and crude ash of Ewhaju after the lapse of 20 days from brewing were 47.01%, 47.57%, 29.45%, 4.81% and 0.09%, respectively and free sugar composed with 28.07% of glucose and 1.30% of maltose compared with 17.43% of glucose in one year aged Ewhaju. Contents of minerals were Ca 4.8mg%, Mg 9.2mg%, K 33.0mg%, Na 16.0mg%, Mn 0.76 ppm, Fe 35.0 ppm, Zn 1.1 ppm, Cu 0.12 ppm, Cr 0.20 ppm and Pb 0.22 ppm and rarely changed during fermentation. Total amino acids were 4.23% immediately after brewing 4.54% after the lapse of 100 days. In change of amino acids, methionine and tyrosine slightly increased during fermentation. Total acid contents of Ewhaju at immediately after brewing, in the lapse of 100 days and aged one year were 0.25%, 2.16%, 3.70%, respectively and 0.05%, 0.72% and 1.04%, in volatile acid. The pH in Swhaju remarkably decreased during fermentation; 6.1 at immediatly after brewing, about 3.9 at 100 days and 365 days fermentation.