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大鲵脂肪组织分布及其理化特性 被引量:9

Adipose Tissue Distribution and Physical and Chemical Properties of Andrias davidianus
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摘要 从大鲵的尾部开始,每隔1 cm切取大鲵肉块,观察其脂肪组织分布;通过石蜡切片、HE染色后观察脂肪细胞;通过流变仪测定大鲵脂肪粘度;通过气相色谱/质谱联用技术分析大鲵脂肪的脂肪酸组成。结果表明,大鲵脂肪主要集中于尾部2/3处至尾尖,尾部2/3处至尾鳍部脂肪含量显著减少,尾鳍部只存在极少量的皮下脂肪;脂肪细胞有较强的流动性,易变形、易碎;脂肪具牛顿流体特性,粘度为0.0289Paos;大鲵脂肪主要含13种脂肪酸(C18:124.2%,C16:015.4%,C16:113.7%,C18:28.2%,C20:56.7%,C18:34.5%,C22:64.3%,C14:13.0%,C18:02.8%,C22:52.6%,C20:42.2%,C17:02.0%,C17:11.9%)。 Andrias davidianus flesh was cut every other 1 cm from the tail end;and adipose tissue distribution was explored;and fat cells were observed via paraffin-dyed section;and fat viscosity was measured by rheometer;and fatty acids were analysed with GC6890N/MSD5973N.The results showed the Andrias davidianus fat mainly concentrate on two thirds of the tail to tail top;and the fat content is markedly decrease from two thirds of the tail to tail fin;and there is little subcutaneous fat on the tail fin;and the fat cells have a strong mobility,easy deformed and broken;and Andrias davidianus fat is Newtonian fluid;and the viscosity is 0.0289Paos;and Andrias davidianus fat mainly contain 13 kinds fatty acids(C18:124.2%,C16:015.4%,C16:113.7%,C18:28.2%,C20:56.7%,C18:34.5%,C22:64.3%,C14:13.0%,C18:02.8%,C22:52.6%,C20:42.2%,C17:02.0% and C17:11.9%).
出处 《西北农业学报》 CAS CSCD 北大核心 2010年第2期7-10,共4页 Acta Agriculturae Boreali-occidentalis Sinica
基金 西北农林科技大学"拔尖人才支持计划"(01140101) 西北农林科技大学"校内推广专家支持计划"(01140105)
关键词 大鲵 脂肪组织分布 理化特性 Andrias davidianus Adipose tissue distribution Physical and chemical properties
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