Abstract
The content of amino acids in Auricularia auricula was analyzed by the method of acid hydrolysis and automatic online analysis. The content of total amino acids in A. auricula produced in Heilongjiang was between 68.287 and 110.949 mg/g, and the average was 90.848 mg/g. The content of essential amino acids in A. auricula from Heilongjiang was between 28.847 and 45.757 mg/g, and the average was 37.987 mg/g. The proportion of essential amino acids (EAA) to total amino acids (TAA) in A. auricula from Heilongjiang was between 41.24% and 42.26%. However, the content of total amino acids in A. auricula from Jilin was between 71.716 and 124.143 mg/g, and the average was 94.318 mg/g. The content of essential amino acids in A. auricula from Jilin was between 29.775 and 52.063 mg/g, and the average was 38.498 mg/g. The ratio of essential amino acids (EAA) to total amino acids (TAA) in A. auricula from Jilin was between 39.75% and 41.94%. The content of total amino acids and essential amino acids in A. auricula from Jilin was higher than that from Heilongjiang. However, EAA/TAA in A. auricula from Heilongjiang was higher than that of Jilin. The content of total amino acids in different batches of A. auricula in the same production area was quite different, but the ratio of essential amino acids content to total amino acids content was basically the same.
Highlights
Auricularia auricula is a precious edible and medicinal glial fungus [1] and mostly distributed in temperate regions of the northern hemisphere, mainly in Asia, China, Japan, and other countries, and production of China is higher
E proportion of essential amino acids (EAA) to total amino acids (TAA) in A. auricula from Heilongjiang was between 41.24% and 42.26%
Liu et al [11] determined the content of 17 hydrolysate amino acids in A. auricula from 9 different producing areas in Jilin, Heilongjiang, Liaoning, Hebei, Hubei, Xinjiang, Zhejiang, Jiangxi, and Tibet. e content of 7 essential amino acids in A. auricula produced in Jilin and Heilongjiang was 26.50 mg/g and 37.07 mg/g, respectively
Summary
The Content Analysis of Amino Acids in Auricularia auricula from Heilongjiang and Jilin. E content of essential amino acids in A. auricula from Heilongjiang was between 28.847 and 45.757 mg/g, and the average was 37.987 mg/g. E proportion of essential amino acids (EAA) to total amino acids (TAA) in A. auricula from Heilongjiang was between 41.24% and 42.26%. The content of total amino acids in A. auricula from Jilin was between 71.716 and 124.143 mg/g, and the average was 94.318 mg/g. E content of essential amino acids in A. auricula from Jilin was between 29.775 and 52.063 mg/g, and the average was 38.498 mg/g. E ratio of essential amino acids (EAA) to total amino acids (TAA) in A. auricula from Jilin was between 39.75% and 41.94%. E content of total amino acids and essential amino acids in A. auricula from Jilin was higher than that from Heilongjiang. EAA/TAA in A. auricula from Heilongjiang was higher than that of Jilin. e content of total amino acids in different batches of A. auricula in the same production area was quite different, but the ratio of essential amino acids content to total amino acids content was basically the same
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