鲫的挥发性成分

新鲜鲫具有以草腥味、泥土味等混合的气味，其强度以内脏最强，皮次之，肌肉最弱。采用GC－嗅觉感官试验和GC－MS鉴定分析结果表明：同鲫特征气味最为相关的成分为己醛；其他相关物质有1－戊烯－3－酮、2，3－戊二酮、1－戊烯－3－醇、反－2，顺－4－庚二烯醛、1－门牌烯－3－醇、1，5－辛二烯－3－醇等C5－C8的羰基化合物和醇类。鲫的鱼皮和鳃的粗酶液中存在着类脂肪氧化酶活性，由底物花生四烯酸生成3种C8挥发性成分。

Identification of volatile compounds in Carassius auratus

Volatile compounds collected into Tenax TA from fresh uncooked crucian carp (Carassins auratus) were analyzed by GC sniffing and identified by GC MS.The experimental result showed that the specific grassy and earthy odor of fish was correlated with the following C 5-C 8 carbonyls and alcohols: 1 penten 3 one, 2,3 petanedione, 1 penten 3 ol, hexanal, (E, Z) 2, 4 heptadienal, 1 octen 3 ol, 1, 5 octadien 3 ol et al. Among these compounds, hexanal was found to make the most important contribution to the odor of crucian carp. On the other hand, the activity of a lipoxygenase like enzyme was found in the skin and gill of crucian carp. The crude skin enzyme exhibited activity on arachidonic acid, resulting in three C 8 compounds.