作　　者： ; ; ; ; ; ; ;

机构地区： 中国水产科学研究院南海水产研究所

出　　处： 《动物学杂志》 2008年第1期140-146,共7页

摘　　要： 分析了2只瓶鼻海豚(Tursiops truncatus)肌肉组织的营养组成。分析部位包括胸腔内肌肉、背肌、腹肌和尾肌四个部分。分析结果表明,2只海豚腹肌和尾肌粗脂肪含量较其他部位高,蛋白质及灰分在肌肉组织中的分布规律不明显。海豚不同部位氨基酸组成具有极高的一致性,含量最高的氨基酸均为谷氨酸,最低的是胱氨酸,胸腔内肌肉和背肌中必需氨基酸含量较高,但不同部位必需氨基酸占总氨基酸的比例基本相当。海豚肌肉组织均存在棕榈酸(16:0)、棕榈油酸(16:1)、硬脂酸(18:0)、油酸(18:1)、EPA(20:5ω-3)及DHA(22:6ω-3)等脂肪酸,这些脂肪酸是动物及鱼油中典型的脂肪酸。饱和脂肪酸(SFA)的总量与单不饱和脂肪酸(MUFA)的总量相近且大于多不饱和脂肪酸(PUFA)的总量。不饱和脂肪酸中ω-3/ω-6的比值与其他海洋生物相比(通常高于4,有的高达50)明显偏低。海豚肌肉组织中富含Ca、Fe及Zn、Cu、Mn、Se等微量元素。 The nutritional composition in muscle of two Bottlenose Dolphins（Tursiops truncatus）was determined.Samples were taken from thorax,back,belly and tail.The results showed that the difference of crude nutritional composition was very little except for the content of lipids,which was higher in belly and tail than in other place.Content of essential amino acids was much higher in back and thorax than in other position,but ratio of E/T is surprisingly similar.Glu was highest and Csy was lowest among 18 amino acids.There has not significant difference for fatty acids composition in different samples.Typical fatty acids were found in the major part of both specimens,such as palmitic（16：0）,palm oleic acid（16：1）,stearic（18：0）,oleic（18：1）,EPA（20：5 ω-3）and DHA（22：6 ω-3）.SAF was very close to MUFA in amount,and higher than PUFA.The ratio of polyenes ω-3/ω-6 was normally lower than other marine organisms.Muscle of dolphins was rich in Ca,Fe and trace metals such as Zn,Cu,Mn,Se.

关 键 词： 瓶鼻海豚 营养组成 氨基酸 脂肪酸 微量元素

领　　域： [农业科学] [农业科学] [轻工技术与工程] [轻工技术与工程]