萌发大麦种子内肽酶活力、醇溶蛋白及氨基酸含量变化

Changes in Endopeptidase Activity, Content of Hordein and Free Amino Acids in Barley Seeds during Germination

摘要:

以两个大麦品种垦啤8号和Harrington为材料研究了大麦种子萌发过程中体内醇溶性蛋白质、游离氨基酸和内肽酶活力的变化。垦啤8号大麦种子的醇溶蛋白含量高,但其降解量比Harrington多。垦啤8号游离氨基酸增长量略高于Harrington。整个大麦种子发芽期间,国产品种内肽酶活力始终高于进口品种。以上表明,与Harrington相比,虽然国产品种垦啤8号含氮量高,但其内肽酶活力升高快,最大酶活力高,醇溶蛋白降解、转化为可输出氮的进程快,有制造优质麦芽的潜力。

Abstract:

Two species barleys, Hordeum sp. Kenpi No. 8 and Hordeum sp. Harringto were used to study changes in contents of hordein, free amino acids and endopeptidase activity during germination. Results showed that the content of hordein in Kenpi 8 was higher than