不同品种生姜中游离氨基酸和水解氨基酸成分分析

Analysis of Free Amino Acids and Hydrolyzed Amino Acids in Different Varieties of Ginger

对莱芜姜、大黄姜、来凤姜、怀姜、沙姜、罗平小黄姜、南姜、竹根姜中游离氨基酸和水解氨基酸进行测定、分析。结果表明,罗平小黄姜中游离氨基酸含量最高,达7.04‰,竹根姜中游离氨基酸含量最低,仅0.04‰,莱芜姜、沙姜、南姜、怀姜中游离氨基酸含量集中在0.50‰~3.00‰。沙姜中水解氨基酸含量最高,达10.69‰;莱芜姜、罗平小黄姜、来凤姜、怀姜、南姜、竹根姜中水解氨基酸含量集中在5.50‰~9.00‰;大黄姜中水解氨基酸含量最低,仅4.34‰左右。生姜中含人体必需氨基酸共6种,分别为苏氨酸、异亮氨酸、亮氨酸、苯丙氨酸、赖氨酸、缬氨酸,其中缬氨酸仅存在莱芜姜、罗平小黄姜、沙姜中,以组合态形式存在。

The free amino acids and hydrolyzed amino acids in Laiwu ginger,Dahuang ginger,Laifeng ginger,Huaijiang,Shajiang,Luoping ginger,Nanjiang and Zhugen ginger were determined and analyzed.The results showed that the free amino acid content of Luoping ginger was highest of 7.04‰,the free amino acid content in the Zhugen ginger was lowest of only 0.04‰,the free amino acid content of Laiwu ginger,Shajiang,Nanjiang and Huaijiang were focused on 0.50‰-3.00‰.The content of hydrolyzed amino acids in ginger was the highest,reaching 10.69‰;the hydrolyzed amino acid content of Laiwu ginger,Luoping ginger,Laifeng ginger,Huaijiang,Nanjiang and Zhugen ginger were concentrated in 5.50‰-9.00‰,and Dahuang ginger was the least,only about 4.34‰.There were six essential amino acids in ginger,which were threonine,isoleucine,leucine,phenylalanine,lysine and valine,among which valine only existed in Laiwu ginger,Luoping ginger and Shajiang,and existed in the form of combination.