Profile of Aqueous Metabolites in Siberian Sturgeon
Profile of Aqueous Metabolites in Siberian Sturgeon
复制标题
DOI：
10.12691/jfnr-9-12-5
复制
发表时间：
2021-12
影响因子：
1.1
通讯作者：
T. Naganuma
中科院分区：
文献类型：
--
作者：
T. Naganuma
从代谢组学的角度分析了4岁雌性西伯利亚鲟鱼肉、脂肪和蛋中的游离水代谢物。共检测到245种代谢物，其中91种被定量。肉、脂肪和蛋的主要共同代谢物是乳酸、肌酸和丙氨酸。有一些组织特异性代谢物，但含量很少。肌肽是一种由β-丙氨酸和组氨酸组成的二肽，以其抗衰老功能而闻名，在肉类和脂肪中大量存在，但在鸡蛋中未检测到。另一种主要代谢物甜菜碱（也称为N，N，N-三甲基甘氨酸）也有同样的趋势。这些代谢组学特征可以很好地表征和区分肉、脂肪和蛋，其中肌酸、甜菜碱/胆碱和谷氨酸分别是主要特征。代谢物谱有助于开发鲟鱼养殖饲料以及利用鲟鱼为人类提供营养。
Free aqueous metabolites in meat, fat and egg of a 4-year-old female Siberian sturgeon were analyzed in a metabolomic perspective. A total of 245 metabolites were detected and 91 were quantified. Major common metabolites among meat, fat and egg were lactic acid, creatine and alanine. There were some tissue-specific metabolites but at only minor levels. Carnosine, a dipeptide consisting of β-alanine and histidine and known for its geroprotetive (anti-aging) function, occurred in abundance in meat and fat but was not detected in egg. The same tendency was seen for another major metabolite, betaine (also known as N,N,N-trimethylglycine). These metabolomic profiles well characterized and discriminated meat, fat and egg, which were primarily characterized with creatine, betaine/choline and glutamic acid, respectively. The metabolite profile help developing aquacultural feed for sturgeons as well as utilizing sturgeons for human nutrition.